Biofuel production: exploring renewable energy solutions for a greener future
Open accessAbstract
Biofuel production has emerged as a leading contender in the quest for renewable energy solutions, offering a promising path toward a greener future. This comprehensive state-of-the-art review delves into the current landscape of biofuel production, exploring its potential as a viable alternative to conventional fossil fuels. This study extensively examines various feedstock options, encompassing diverse sources such as plants, algae, and agricultural waste, and investigates the technological advancements driving biofuel production processes. This review highlights the environmental benefits of biofuels, emphasizing their capacity to significantly reduce greenhouse gas emissions compared to those of fossil fuels. Additionally, this study elucidates the role of biofuels in enhancing energy security by decreasing reliance on finite fossil fuel reserves, thereby mitigating vulnerabilities to geopolitical tensions and price fluctuations. The economic prospects associated with biofuel production are also elucidated, encompassing job creation, rural development, and the potential for additional revenue streams for farmers and landowners engaged in biofuel feedstock cultivation. While highlighting the promise of biofuels, the review also addresses the challenges and considerations surrounding their production. Potential issues such as land use competition, resource availability, and sustainability implications are critically evaluated. Responsible implementation, including proper land-use planning, resource management, and adherence to sustainability criteria, is emphasized as critical for the long-term viability of biofuel production. Moreover, the review underscores the importance of ongoing research and development efforts aimed at enhancing biofuel production efficiency, feedstock productivity, and conversion processes. Technological advancements hold the key to increasing biofuel yields, reducing production costs, and improving overall sustainability. This review uniquely synthesizes the latest advancements across the entire spectrum of biofuel production, from feedstock selection to end-use applications. It addresses critical research gaps by providing a comprehensive analysis of emerging technologies, sustainability metrics, and economic viability of various biofuel pathways. Unlike previous reviews, this work offers an integrated perspective on the interplay between technological innovation, environmental impact, and socio-economic factors in biofuel development, thereby providing a holistic framework for future research and policy directions in renewable energy.
AI snapshot
Written from the paper’s full text.
TL;DR
This state-of-the-art review surveys biofuel production across feedstock generations, conversion technologies, environmental benefits, economic viability, and policy frameworks. It argues that advanced biofuels can help reduce fossil fuel dependence and GHG emissions, but sustainable scale-up depends on feedstock choices, conversion efficiency, infrastructure, and supportive regulation.
Key findings
- Fossil fuels are finite and environmentally costly: estimated reserve-to-production lifetimes are approximately 139, 48.8, and 53.5 additional years for coal, natural gas, and oil, respectively; at current usage rates the fossil fuel era is projected to last only about 400 years, while fossil fuels still meet ~80% of energy needs.
- Renewable electricity is projected to expand sharply: global renewable electricity capacity is expected to rise by over 60% from 2020 to 2026, reaching more than 4800 GW, with generation growing 8% annually on average to 12,350 TWh by 2026; IRENA forecasts renewables could rise from 26% of global electricity generation in 2018 to 57% by 2030.
- Biofuel production has grown substantially: global biofuel production reached 1914 thousand barrels of oil equivalent per day in 2022, up from 180 thousand in 2000; IRENA’s low-carbon road to 2050 proposes a fivefold increase from 130 billion liters in 2016 to approximately 650 billion liters by 2050, and the global biofuel sector is expected to be worth more than $200 billion by 2030.
- Biofuel generations differ by feedstock and performance: first-generation biofuels use food crops, second-generation use nonfood lignocellulosic biomass, third-generation use algae, and fourth-generation use genetically engineered crops/grasses; algal oil contents range widely (e.g., Schizochytrium sp. 50–77%, Neochloris oleoabundans 35–65%, Chlorella sp. 28–53%), cellulosic ethanol can reduce GHG emissions by up to 90%, and aviation accounts for 2% (705 million tons) of global CO2 emissions, potentially rising to more than 340% (3.1 billion tons) by 2050 if conventional jet fuel remains dominant.
Methods
- Design: a comprehensive state-of-the-art review that synthesizes the current landscape of biofuel production, including feedstock options, technological advancements, environmental benefits, economic prospects, and challenges.
- Data/sample: no primary experimental sample; the review draws on cited literature and compiled tables covering biofuel generations, algal oil contents, bioethanol yields, methane production, biohydrogen yields, production costs, and comparative fuel parameters.
- Analysis: narrative synthesis and comparative tabulation across biofuel pathways, conversion technologies (thermochemical, biochemical, emerging), sustainability metrics, economic viability, and policy/regulatory frameworks.
Limitations
- The paper states challenges and considerations for biofuel production, including land use competition, resource availability, sustainability implications, conversion efficiency, feedstock diversity, and infrastructure/distribution constraints; it emphasizes responsible implementation, land-use planning, resource management, and sustainability criteria.
- Evident from the text: as a narrative state-of-the-art review, it does not describe a systematic search strategy, inclusion/exclusion criteria, or quantitative meta-analysis, so selection and reporting biases cannot be assessed from the provided text.
- Evident from the text: some compiled data are presented as ranges from multiple cited sources without harmonization (e.g., Table 4 bioethanol production values range from 0.00086 to 116.75 L/kg dried biomass), limiting direct comparability across feedstocks.
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- Premisecitation
Bioenergy is readily available across the world.
“Furthermore, bioenergy is readily available across the world.”
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First-generation biofuels have a marginal advantage over fossil fuels in terms of greenhouse gas emissions since they take a large amount of energy to create, harvest, and process.
“First-generation biofuels have a marginal advantage over fossil fuels in terms of greenhouse gas emissions since they take a large amount of energy to create, harvest, and process.”
Quote in the paperNot a substantial claim - Premisecitation
Biofuels from renewable biomass, such as plants and organic waste, provide a sustainable alternative to mitigate fossil fuel depletion and climate change.
“Biofuels from renewable biomass, such as plants and organic waste, provide a sustainable alternative to mitigate fossil fuel depletion and climate change [32], Pandey et al.,2018).”
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The U.S. Energy Information Administration predicts over double the electricity demand in 2050 relative to 2018.
“Specifically, the U.S. Energy Information Administration (EIA) predicts over double the electricity demand in 2050 relative to that in 2018 [26].”
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Projections estimate that renewables will expand from a 23% share in 2015 to 63% by 2050.
“Projections estimate that renewables will expand from a 23% share in 2015 to 63% by 2050.”
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Between 2010 and 2020, the consumption of renewables for electricity generation substantially increased from 4098 to 7627 TWh.
“Overall, between 2010 and 2020, the consumption of renewables for electricity generation substantially increased from 4098 to 7627 TWh (Fig. 6), illustrating the growing utilization of renewable energy over the decade [26].”
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At present usage rates, the fossil fuel era will last only approximately 400 years.
“Unlike fossil fuels, which take millions of years to form, at present usage rates, the fossil fuel era will last only approximately 400 years [84].”
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Biofuel is regarded as an effective alternative source of energy due to its minimal greenhouse gas emissions, biodegradability, and nontoxicity.
“Biofuel is regarded as an effective alternative source of energy due to its valuable qualities, which include minimal greenhouse gas emissions, biodegradability, and nontoxicity [25, 115].”
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Some biomass conversion processes produce greenhouse gas emissions, albeit generally at lower levels compared to fossil fuel processes.
“For instance, some biomass conversion processes do produce greenhouse gas emissions, albeit generally at lower levels compared to fossil fuel processes [76].”
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Overall electricity usage is predicted to rise by almost 1.5 times by 2040 versus the current level.
“Overall electricity usage is predicted to rise by almost 1.5 times by 2040 versus the current level (Fig. 4).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [26] Das HS, Salem M, Zainuri MAAM, Dobi AM, Li S, Ullah MH. A comprehensive review on power conditioning units and control techniques in fuel cell hybrid systems. Energy Rep. 2022;8:14236–58. source
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- Premisereasoning
The production rate of a finite resource such as fossil fuels follows a bell-shaped curve over time, initially increasing, peaking when approximately half of the resource has been extracted, and then gradually declining.
“The theory posits that the production rate of a finite resource, such as fossil fuels, follows a bell-shaped curve over time.”
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Renewables and efficiency can account for more than 90% of needed energy-related emissions reductions.
“Analysis shows that renewables and efficiency can account for more than 90% of needed energy-related emissions reductions [70].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [70] IRENA – International Renewable Energy Agency, (2024)
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Catalytic liquefaction effectively generates products with greater energy density in the liquid phase.
“Catalytic liquefaction, assisted by a catalyst or high hydrogen partial pressure, effectively generates products with greater energy density in the liquid phase [106, 111].”
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Triglycerides may be converted into biofuels via transesterification, thermal cracking, or hydrogenation methods.
“Triglycerides may be converted into biofuels via transesterification, thermal cracking, or hydrogenation methods.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [51] Gómez-Castro FI, Gutiérrez-Antonio C, Romero-Izquierdo AG, May-Vázquez MM, Hernández S. Intensified technologies for the production of triglyceride-based biofuels: current status and future trends. Renew Sustain Energy Rev. 2023;184:113580. source
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Algal biofuels may be superior replacements for earlier generations due to their faster growth without the need for extensive land or resources.
“Algal biofuels may be superior replacements for earlier generations due to their faster growth without the need for extensive land or resources [106].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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Fermentation produces bioethanol from sugar- and starch-rich biomass such as maize and sugarcane.
“Fermentation is a commercial method that produces bioethanol from sugar- and starch-rich biomass such as maize and sugarcane.”
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Thermal cracking can convert raw materials with high acid contents and undesirable impurities.
“Thermal cracking can change raw materials with high acid contents and undesirable impurities, including trash and acidic oils.”
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Gasification produces syngas (CO and H2) usable for power, heat, or biofuels.
“Gasification is a thermochemical process that heats biomass under oxygen-limited circumstances, producing syngas, a mixture of carbon monoxide and hydrogen that may be used to create power, heat, or biofuels [17].”
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Pyrolysis disadvantages include high heat input needed for chemical reactions for syngas formation.
“However, the disadvantages of these methods include the high heat input needed to carry out the chemical reactions for the formation of syngas. [27, 138].”
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Algae have quicker photosynthesis than land plants used in first- and second-generation biofuels.
“Algae have quicker photosynthesis than land plants used in first/second-generation biofuels.”
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Metabolic engineering considerably improved the carbohydrate or lipid content in algae.
“Notably, metabolic engineering considerably improved the carbohydrate or lipid content in algae (Fig. 11).”
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Advancements in production technologies have led to fuels that outperform green diesel in combustion efficiency.
“Advancements in production technologies have led to fuels that outperform green diesel in terms of combustion efficiency [48].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [48] García-Martín JF, Barrios CC, Alés-Álvarez FJ, Dominguez-Sáez A, Alvarez-Mateos P. Biodiesel production from waste cooking oil in an oscillatory flow reactor. Performance as a fuel on a TDI diesel engine. Renew Energy. 2018;125:546–56. source
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Anaerobic digestion produces methane-rich biogas.
“Anaerobic digestion is a process in which bacteria break down organic matter without oxygen, producing methane-rich biogas.”
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- Premisecitation
Bioethanol can be produced through fermentation of carbon monoxide using specialized bacteria such as Clostridium autoethanogenum.
“This process, known as gas fermentation, utilizes anaerobic bacteria such as Clostridium autoethanogenum to convert carbon monoxide into ethanol [96].”
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The hydrocarbon-based biofuel from thermal cracking can be blended with petroleum diesel at any ratio.
“The resulting hydrocarbon-based biofuel can then be combined with petroleum diesel at any ratio [48, 51].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [48] García-Martín JF, Barrios CC, Alés-Álvarez FJ, Dominguez-Sáez A, Alvarez-Mateos P. Biodiesel production from waste cooking oil in an oscillatory flow reactor. Performance as a fuel on a TDI diesel engine. Renew Energy. 2018;125:546–56. source
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Biochemical conversion technologies utilize microorganisms to convert biomass into economically viable gaseous products.
“Biochemical (or biological) conversion technologies utilize microorganisms to convert biomass into economically viable gaseous products with a wide range of uses [91].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [91] Leonard MD, Michaelides EE, Michaelides DN. Energy storage needs for the substitution of fossil fuel power plants with renewables. Renew Energy. 2020;145:951–62. source
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The most common pathways for SAF production include HEFA, FT, ATJ, and SIP.
“Currently, the most common pathways for SAF production include hydroprocessed esters and fatty acids (HEFA), Fischer–Tropsch (FT) synthesis, alcohol-to-jet (ATJ), and synthesized iso-paraffins (SIP) [161].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [161] Tropea A. Biofuels production and processing technology. Fermentation. 2022;8(7):319. source
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Research on cellulosic ethanol produced from lignocellulosic biomass has led to advancements in efficient pretreatment methods, such as steam explosion, acid hydrolysis, and enzymatic hydrolysis, and the development of robust enzymes.
“Research on cellulosic ethanol, produced from lignocellulosic biomass has led to advancements in efficient pretreatment methods, such as steam explosion, acid hydrolysis, and enzymatic hydrolysis, and the development of robust enzymes [134, 148].”
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This multifaceted growth in biofuel production contributes to the increasing use of biofuels as alternatives to fossil fuels.
“This multifaceted growth in biofuel production contributes to the increasing use of biofuels as alternatives to fossil fuels [12].”
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Coprocessing of lipids and unprocessed hydrocarbons in an FT reactor with a medium distillate of crude oil in petroleum refineries has been permitted for the generation of biojet fuel.
“In addition to these methods, coprocessing of lipids and unprocessed hydrocarbons in an FT reactor with a medium distillate of crude oil in petroleum refineries has been permitted for the generation of biojet fuel [21, 55].”
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Biomethanol production using high-temperature conversion of RDF is a highly promising approach.
“Biomethanol production using high-temperature conversion of RDF (refuse-derived fuel) is a highly promising approach.”
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Biohydrogen yield is enhanced by the addition of catalysts in production processes such as bio-photolysis and fermentation.
“Biohydrogen yield is enhanced by the addition of catalysts in production processes such as bio-photolysis and fermentation.”
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- Interpretationnone given
Regulations promoting the use and production of biofuels have largely fueled growth in the biofuel industry.
“Regulations promoting the use and production of biofuels have largely fueled growth, with the assumption that they will enhance energy security and reduce greenhouse gas emissions in vital industries.”
Quote in the paperNot a substantial claim- The authors state this as an assumption: Regulations promoting biofuel use and production will enhance energy security and reduce greenhouse gas emissions in vital industries.
- Premisecitation
Bio-oil may be improved by procedures to remove contaminants and lower oxygen concentration, making it a desirable feedstock for fuels, chemicals, and high-value goods.
“However, bio-oil may be improved by different procedures to remove contaminants and lower the oxygen concentration, making it a desirable feedstock for the manufacture of fuels, chemicals, and other high-value goods [54].”
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- Rests on an assumption: Upgrading processes address main challenges of raw bio-oil: high oxygen content (35-40 wt.%), high water content (15-30 wt.%), high acidity (pH 2-3), and chemical instability.
- Premisecitation
Cocultivation systems have been created to increase the efficiency of biofuel production by employing different microorganisms to generate biofuels, chemicals, and other products.
“Cocultivation systems have been created to increase the efficiency of biofuel production, by employing different microorganisms to generate biofuels, chemicals, and other products [5].”
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The composition of biomass plays a crucial role in determining the yield and quality of bio-oil during pyrolysis.
“The composition of biomass plays a crucial role in determining the yield and quality of bio-oil during pyrolysis, with different components of biomass influencing pyrolysis reactions and the resulting product distribution [54, 61].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [54] Guedes RE, Luna AS, Torres AR. Operating parameters for bio-oil production in biomass pyrolysis: a review. J Anal Appl Pyrol. 2018;129:134–49. source
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There are still issues connected with cocultivation systems that must be solved to fulfill future industrial demands.
“However, there are still issues connected with coco-cultivation systems that must be solved to fulfill future industrial demands [119].”
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- Premisecitation
IRENA's low-carbon roadmap to 2050 proposes a fivefold increase in biofuel usage, from 130 billion liters in 2016 to approximately 650 billion liters by 2050.
“IRENA’s low-carbon road to 2050 proposes a fivefold increase in biofuel usage, from 130 billion liter in 2016 to approximately 650 billion liters by 2050.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [70] IRENA – International Renewable Energy Agency, (2024)
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Current infrastructure and distribution networks were developed largely for fossil fuels and may not be totally compatible with biofuels.
“The current infrastructure and distribution networks were developed largely for fossil fuels and may not be totally compatible with biofuels.”
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Efficiency issues frequently arise while converting feedstocks into biofuels.
“Efficiency issues frequently arise while converting feedstocks into biofuels.”
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Advances in metabolic engineering have permitted the synthesis of biofuels with specific features, such as increased energy density and compatibility with current infrastructure.
“Advances in metabolic engineering have permitted the synthesis of biofuels with specific features, such as increased energy density and compatibility with current infrastructure [25, 46].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [25] Dahiya A. Bioenergy: biomass to biofuels and waste to energy. Cambridge: Academic Press; 2020.
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- cites [46] Friedemann A. Life after fossil fuels. a reality check on alternative energy. Cham: Springer-Lecture Notes in Energy; 2021. source
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- Premisecitation
Research is exploring the conversion of sugars into diesel-type biofuels using biological or chemical catalysts to produce biofuels with properties similar to petroleum-based diesel.
“Sugar conversion to diesel-type biofuels: another area of research involves the conversion of sugars into diesel-type biofuels using biological or chemical catalysts. This approach aims to produce biofuels with properties similar to petroleum-based diesel.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- cites [134] Rai AK, Al Makishah NH, Wen Z, Gupta G, Pandit S, Prasad R. Recent developments in lignocellulosic biofuels, a renewable source of bioenergy. Fermentation. 2022;8(4):161. source
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- Premisecitation
Renewable energy sources can play an important role in lowering greenhouse gas emissions, especially in the transportation sector, when alternative renewable energy sources are limited.
“Moreover, renewable energy sources can play an important role in lowering greenhouse gas emissions, especially in the transportation sector, when alternative renewable energy sources are limited [92–94, 121].”
Quote in the paperNot a substantial claim0 of 4 sources checked- cites [92] Li C, Jia T, Wang H, Wang X, Negnevitsky M, Hu YJ, Wang L. Assessing the prospect of deploying green methanol vehicles in China from energy, environmental and economic perspectives. Energy. 2023;263:125967. source
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- cites [93] Li S, Wu Y, Dao MU, Dragoi EN, Xia C. Spotlighting of the role of catalysis for biomass conversion to green fuels toward a sustainable environment: latest innovation avenues, insights, challenges, and future perspectives. Chemosphere. 2023;318:137954. source
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- cites [94] Li Y, Wang X, Imran A, Aslam MU, Mehmood U. Analyzing the contribution of renewable energy and natural resources for sustainability in G-20 countries: how gross capital formation impacts ecological footprints. Heliyon. 2023;9(8): e18882. source
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- cites [121] Omer AM. Energy, environment and sustainable development. Renew Sustain Energy Rev. 2008;12(9):2265–300. source
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- Premisecitation
Catalytic pyrolysis has shown promise for enhancing product selectivity and quality.
“Catalytic pyrolysis, which uses catalysts to improve the process, has also shown promise for enhancing product selectivity and quality [136].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
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- Premisecitation
Competing demands for land, water, and resources from food production, conservation, and biofuel crops can raise concerns about land use change, deforestation, and biodiversity loss.
“Competing demands for land, water, and resources from food production, conservation, and biofuel crops can raise concerns about land use change, deforestation, and biodiversity loss.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- cites [134] Rai AK, Al Makishah NH, Wen Z, Gupta G, Pandit S, Prasad R. Recent developments in lignocellulosic biofuels, a renewable source of bioenergy. Fermentation. 2022;8(4):161. source
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- cites [142] Rutz, D., & Janssen, R. (2007). Biofuel technology handbook. WIP Renewable energies, 95.
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- Premisecitation
MES research has focused on optimizing electrode materials, microbial consortia, and operating conditions to optimize conversion efficiency and maximize ethanol output.
“MES research has focused on optimizing electrode materials, microbial consortia, and operating conditions to optimize conversion efficiency and maximize ethanol output [116].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [116] Narayanan M, Ali SS, El-Sheekh M. A comprehensive review on the potential of microbial enzymes in multipollutant bioremediation: mechanisms, challenges, and future prospects. J Environ Manage. 2023;334:117532. source
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- Premisecitation
Synthetic biology is used to increase efficiency and yield of biofuel generation via pathways, enzyme optimization, and metabolic engineering.
“Synthetic biology is the process of creating and engineering biological systems to perform certain purposes, such as biofuel generation, to increase efficiency and yield via pathways, enzyme optimization, and metabolic engineering [136].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
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- Premisecitation
Domestic production of biofuels from locally accessible feedstocks can help increase the stability and robustness of energy systems.
“Domestic production of biofuels from locally accessible feedstocks can help to increase the stability and robustness of energy systems [92–94].”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [92] Li C, Jia T, Wang H, Wang X, Negnevitsky M, Hu YJ, Wang L. Assessing the prospect of deploying green methanol vehicles in China from energy, environmental and economic perspectives. Energy. 2023;263:125967. source
Not checked in the free run.
- cites [93] Li S, Wu Y, Dao MU, Dragoi EN, Xia C. Spotlighting of the role of catalysis for biomass conversion to green fuels toward a sustainable environment: latest innovation avenues, insights, challenges, and future perspectives. Chemosphere. 2023;318:137954. source
Not checked in the free run.
- cites [94] Li Y, Wang X, Imran A, Aslam MU, Mehmood U. Analyzing the contribution of renewable energy and natural resources for sustainability in G-20 countries: how gross capital formation impacts ecological footprints. Heliyon. 2023;9(8): e18882. source
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- Premisecitation
Biofuels provide a means to move from fossil fuels to renewable energy sources.
“Biofuels provide a means to move from fossil fuels to renewable energy sources.”
Quote in the paperSubstantial claim0 of 4 sources checked- cites [92] Li C, Jia T, Wang H, Wang X, Negnevitsky M, Hu YJ, Wang L. Assessing the prospect of deploying green methanol vehicles in China from energy, environmental and economic perspectives. Energy. 2023;263:125967. source
Not checked in the free run.
- cites [93] Li S, Wu Y, Dao MU, Dragoi EN, Xia C. Spotlighting of the role of catalysis for biomass conversion to green fuels toward a sustainable environment: latest innovation avenues, insights, challenges, and future perspectives. Chemosphere. 2023;318:137954. source
Not checked in the free run.
- cites [94] Li Y, Wang X, Imran A, Aslam MU, Mehmood U. Analyzing the contribution of renewable energy and natural resources for sustainability in G-20 countries: how gross capital formation impacts ecological footprints. Heliyon. 2023;9(8): e18882. source
Not checked in the free run.
- cites [121] Omer AM. Energy, environment and sustainable development. Renew Sustain Energy Rev. 2008;12(9):2265–300. source
Not checked in the free run.
- Premisecitation
Reliance on a restricted variety of feedstocks for biofuel production, such as maize, sugarcane, and soybeans, may result in rivalry with food production and consequent price increases.
“The reliance on a restricted variety of feedstocks for biofuel production, such as maize, sugarcane, and soybeans, may result in rivalry with food production and consequent price increases.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [121] Omer AM. Energy, environment and sustainable development. Renew Sustain Energy Rev. 2008;12(9):2265–300. source
Not checked in the free run.
- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
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- Premisecitation
Biofuel production drives technological advancements in feedstock cultivation, conversion technology, and process optimization.
“Biofuel production drives technological advancements in feedstock cultivation, conversion technology, and process optimization.”
Quote in the paperNot a substantial claim0 of 4 sources checked- cites [92] Li C, Jia T, Wang H, Wang X, Negnevitsky M, Hu YJ, Wang L. Assessing the prospect of deploying green methanol vehicles in China from energy, environmental and economic perspectives. Energy. 2023;263:125967. source
Not checked in the free run.
- cites [93] Li S, Wu Y, Dao MU, Dragoi EN, Xia C. Spotlighting of the role of catalysis for biomass conversion to green fuels toward a sustainable environment: latest innovation avenues, insights, challenges, and future perspectives. Chemosphere. 2023;318:137954. source
Not checked in the free run.
- cites [94] Li Y, Wang X, Imran A, Aslam MU, Mehmood U. Analyzing the contribution of renewable energy and natural resources for sustainability in G-20 countries: how gross capital formation impacts ecological footprints. Heliyon. 2023;9(8): e18882. source
Not checked in the free run.
- cites [100] Lu H, Yadav V, Bilal M, Iqbal HM. Bioprospecting microbial hosts to valorize lignocellulose biomass–Environmental perspectives and value-added bioproducts. Chemosphere. 2022;288:132574. source
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- Premisecitation
Progress has been made in identifying and engineering enzymes that effectively degrade complex carbohydrates in lignocellulosic biomass into fermentable sugars.
“Progress has been made in the identification and engineering of enzymes that effectively degrade complex carbohydrates in lignocellulosic biomass into fermentable sugars.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [22] Cherwoo L, Gupta I, Flora G, Verma R, Kapil M, Arya SK, Ashokkumar V. Biofuels an alternative to traditional fossil fuels: a comprehensive review. Sustain Energy Technol Assess. 2023;60:103503.
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- Premisecitation
The availability of sustainable and plentiful feedstocks poses a substantial obstacle to biofuel manufacturing.
“The availability of sustainable and plentiful feedstocks poses a substantial obstacle to biofuel manufacturing.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
Not checked in the free run.
- cites [134] Rai AK, Al Makishah NH, Wen Z, Gupta G, Pandit S, Prasad R. Recent developments in lignocellulosic biofuels, a renewable source of bioenergy. Fermentation. 2022;8(4):161. source
Not checked in the free run.
- cites [142] Rutz, D., & Janssen, R. (2007). Biofuel technology handbook. WIP Renewable energies, 95.
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- Premisecitation
Unsustainable land use practices, such as deforestation or the modification of natural ecosystems, can cause biodiversity loss and carbon emissions.
“Unsustainable land use practices, such as deforestation or the modification of natural ecosystems, can cause biodiversity loss and carbon emissions [106].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- Premisecitation
The market potential of biofuels is determined by consumer demand and the availability of infrastructure for biofuel production, distribution, and consumption.
“The market potential of biofuels is determined by consumer demand as well as the availability of infrastructure for biofuel production, distribution, and consumption.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [42] Escalante J, Chen WH, Tabatabaei M, Hoang AT, Kwon EE, Lin KYA, Saravanakumar A. Pyrolysis of lignocellulosic, algal, plastic, and other biomass wastes for biofuel production and circular bioeconomy: a review of thermogravimetric analysis (TGA) approach. Renew Sustain Energy Rev. 2022;169:112914. source
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- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
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- Premisecitation
The competitiveness of biofuels is not static and can be significantly influenced by government policies, technological advancements, and changes in feedstock availability and prices.
“It is important to note that the competitiveness of biofuels is not static and can be significantly influenced by factors, such as government policies, technological advancements, and changes in feedstock availability and prices.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [11] Aravani VP, Tsigkou K, Papadakis VG, Kornaros M. Biochemical methane potential of most promising agricultural residues in Northern and Southern Greece. Chemosphere. 2022;296:133985. source
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- Premisecitation
The availability of sustainable and plentiful feedstocks at acceptable prices is critical to the economic sustainability of biofuels.
“The availability of sustainable and plentiful feedstocks at acceptable prices is critical to the economic sustainability of biofuels.”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- cites [142] Rutz, D., & Janssen, R. (2007). Biofuel technology handbook. WIP Renewable energies, 95.
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- Premisecitation
Growing biofuel feedstocks on high-carbon soils, such as peat land, greatly increases GHG emissions.
“Growing biofuel feedstocks on high-carbon soils, such as peat land, greatly increases GHG emissions.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- Premisecitation
Biofuels can minimize greenhouse gas emissions compared to fossil fuels.
“One of the most significant environmental benefits of biofuels is their ability to minimize greenhouse gas (GHG) emissions compared to fossil fuels.”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [138] Ramos A, Monteiro E, Rouboa A. Biomass pretreatment techniques for the production of biofuels using thermal conversion methods–A review. Energy Convers Manage. 2022;270:116271. source
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- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
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- Premisecitation
The degree and length of governmental assistance can have a substantial influence on the market potential of biofuels.
“The degree and length of governmental assistance can have a substantial influence on the market potential of biofuels [11, 44, 81].”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [11] Aravani VP, Tsigkou K, Papadakis VG, Kornaros M. Biochemical methane potential of most promising agricultural residues in Northern and Southern Greece. Chemosphere. 2022;296:133985. source
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- cites [44] Fekete H, Kuramochi T, Roelfsema M, den Elzen M, Forsell N, Höhne N, Gusti M. A review of successful climate change mitigation policies in major emitting economies and the potential of global replication. Renew Sustain Energy Rev. 2021;137:110602. source
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- cites [81] Kee SH, Chiongson JBV, Saludes JP, Vigneswari S, Ramakrishna S, Bhubalan K. Bioconversion of agro-industry sourced biowaste into biomaterials via microbial factories–A viable domain of circular economy. Environ Pollut. 2021;271:116311. source
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- Premisecitation
Cellulosic ethanol has the potential to reduce greenhouse gas emissions by up to 90%.
“Cellulosic ethanol has the potential to reduce greenhouse gas emissions by up to 90% [138]).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [138] Ramos A, Monteiro E, Rouboa A. Biomass pretreatment techniques for the production of biofuels using thermal conversion methods–A review. Energy Convers Manage. 2022;270:116271. source
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- Premisecitation
The economic feasibility and market potential of biofuels differ by location and depend on individual market conditions, legislation, and feedstock availability.
“It is crucial to remember that the economic feasibility and market potential of biofuels differ by location and are dependent on individual market conditions, legislation, and feedstock availability.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [60] Heo S, Byun J, Ifaei P, Ko J, Ha B, Hwangbo S, Yoo C. Toward mega-scale decarbonized industrial park (Mega-DIP): generative AI-driven techno-economic and environmental assessment of renewable and sustainable energy utilization in petrochemical industry. Renew Sustain Energy Rev. 2024;189:113933. source
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- Premisecitation
The carbon balance and environmental impact of biofuels vary significantly depending on the feedstock and production method.
“The carbon balance and environmental impact of biofuels vary significantly depending on the feedstock and production method.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
Not checked in the free run.
- Interpretationcitation
The market for biofuels is projected to expand as technology advances, costs fall, and regulatory support remains constant.
“As technology advances, costs fall, and regulatory support remains constant, the market for biofuels is projected to expand.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [60] Heo S, Byun J, Ifaei P, Ko J, Ha B, Hwangbo S, Yoo C. Toward mega-scale decarbonized industrial park (Mega-DIP): generative AI-driven techno-economic and environmental assessment of renewable and sustainable energy utilization in petrochemical industry. Renew Sustain Energy Rev. 2024;189:113933. source
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- Premisecitation
Government regulations and incentives are critical in advancing the biofuel business.
“Government regulations and incentives are critical in advancing the biofuel business.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [11] Aravani VP, Tsigkou K, Papadakis VG, Kornaros M. Biochemical methane potential of most promising agricultural residues in Northern and Southern Greece. Chemosphere. 2022;296:133985. source
Not checked in the free run.
- cites [44] Fekete H, Kuramochi T, Roelfsema M, den Elzen M, Forsell N, Höhne N, Gusti M. A review of successful climate change mitigation policies in major emitting economies and the potential of global replication. Renew Sustain Energy Rev. 2021;137:110602. source
Not checked in the free run.
- cites [81] Kee SH, Chiongson JBV, Saludes JP, Vigneswari S, Ramakrishna S, Bhubalan K. Bioconversion of agro-industry sourced biowaste into biomaterials via microbial factories–A viable domain of circular economy. Environ Pollut. 2021;271:116311. source
Not checked in the free run.
- Premisecitation
Biofuel feedstock cultivation has the potential to have a substantial impact on land and water resources.
“Biofuel feedstock cultivation has the potential to have a substantial impact on land and water resources.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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- Premisecitation
Biofuels must be cost competitive with fossil fuels to attract market demand and investment.
“Biofuels must be cost competitive with fossil fuels to attract market demand and investment [108, 148].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [108] Mizik T, Gyarmati G. Economic and sustainability of biodiesel production—a systematic literature review. Clean Technol. 2021;3(1):19–36. source
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- cites [148] Shahid MK, Batool A, Kashif A, Nawaz MH, Aslam M, Iqbal N, Choi Y. Biofuels and biorefineries: Development, application and future perspectives emphasizing the environmental and economic aspects. J Environ Manage. 2021;297:113268. source
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- Interpretationnone given
With supporting policies, advanced biofuels have the potential to spread as an emission-reduction option compatible with existing cars and infrastructure.
“However, with supporting policies, advanced biofuels have the potential to spread as an emission-reduction option that is compatible with existing cars and infrastructure.”
Quote in the paperSubstantial claim - Premisecitation
Government funding for biofuel infrastructure expansion and upgrading helps overcome market obstacles and increase biofuel use.
“Governments may help fund the construction of biofuel infrastructure, including filling stations, storage facilities, and distribution networks. Funding for infrastructure expansion and upgrading existing infrastructure to handle biofuels helps overcome market obstacles and increase biofuel use [53, 130, 150, 163].”
Quote in the paperNot a substantial claim0 of 4 sources checked- cites [53] Grangeia C, Santos L, Lazaro LLB. The Brazilian biofuel policy (RenovaBio) and its uncertainties: an assessment of technical, socioeconomic and institutional aspects. Energy Convers Manag X. 2022;13:100156.
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- cites [130] Peixoto I, Temmes A. Market organizing in the European Union’s biofuels market: organizing for favoring, acceptability, and future preferences. J Clean Prod. 2019;236:117476. source
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- cites [150] Sheikh ZUD, Bajar S, Devi A, Rose PK, Suhag M, Yadav A, Singh A. Nanotechnology based technological development in biofuel production: current status and future prospects. Enzyme Microb Technol. 2023;171:110304. source
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- cites [163] United States Environmental Protection Agency: overview of greenhouse gases. https://www.epa.gov/ghgemissions/overview-greenhouse-gases. Accessed 7 Oct 2021.
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- Premisecitation
Government sponsorship of biofuel-related research and development encourages technical innovation, efficiency gains, and the development of new feedstocks.
“Governments may sponsor biofuel-related research and development efforts. This assistance encourages technical innovation, efficiency gains, and the development of new feedstocks.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [15] Balali Y, Stegen S. Review of energy storage systems for vehicles based on technology, environmental impacts, and costs. Renew Sustain Energy Rev. 2021;135:110185. source
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- Premisecitation
International trade rules and regulations, such as tariffs, quotas, and trade agreements, influence the import and export of biofuels and feedstocks.
“International trade rules and regulations can influence the biofuel industry. Tariffs, quotas, and trade agreements influence the import and export of biofuels and feedstocks.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [66] Ifaei P, Charmchi AST, Loy-Benitez J, Yang RJ, Yoo C. A data-driven analytical roadmap to a sustainable 2030 in South Korea based on optimal renewable microgrids. Renew Sustain Energy Rev. 2022;167:112752. source
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- cites [131] Petrović-Ranđelović M, Kocić N, Stojanović-Ranđelović B. The importance of renewable energy sources for sustainable development. Econ Sustain Dev. 2020;4(2):15–24. source
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- Premisecitation
Combining biofuels with other renewable energy sources such as wind, solar, and hydropower can contribute to a more sustainable and dependable energy system.
“Combining biofuels with other renewable energy sources (hybrid systems), such as wind and solar power and hydropower, can contribute to a more sustainable and dependable energy system [78, 150].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [78] Jones-Albertus B. Solar futures study. U.S. Department of Energy. 2021.
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- cites [150] Sheikh ZUD, Bajar S, Devi A, Rose PK, Suhag M, Yadav A, Singh A. Nanotechnology based technological development in biofuel production: current status and future prospects. Enzyme Microb Technol. 2023;171:110304. source
Not checked in the free run.
- May combine two claims. 69
- Classified as probably not a substantial claim. 54
- The quote only partly states this claim. 1
May combine two claims.
InterpretationreasoningBioenergy is a carbon neutral or net zero energy source, producing and absorbing the same amount of CO2.
“As a result, bioenergy is a carbon neutral or net zero energy source, which means that it produces and absorbs the same amount of CO2.”
Quote in the paperSubstantial claim- Rests on an assumption: Burning bioenergy produces the same amount of CO2 as the plant acquired during photosynthesis when living.
May combine two claims.
PremisecitationRenewables generally have a much lower carbon footprint over their lifecycle, contribute to improved air quality, and offer sustainable long-term energy solutions.
“Renewables generally have a much lower carbon footprint over their lifecycle, contribute to improved air quality, and offer sustainable long-term energy solutions [69].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [69] IPCC. Special report on renewable energy sources and climate change mitigation. Cambridge, New York: Cambridge University Press; 2011.
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationGlobal renewable electricity capacity is expected to rise by over 60% from 2020 to 2026, reaching more than 4800 GW.
“According to the International Energy Agency (IEA), global renewable electricity capacity is expected to rise by over 60% from 2020 to 2026, reaching more than 4800 GW.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [67] International Energy Agency (IEA). Renewables 2021—Analysis and forecast to 2026. Paris: IEA; 2021. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationRenewable electricity generation is projected to grow by 8% annually on average, reaching 12,350 TWh by 2026.
“Specifically, renewable electricity generation is projected to grow by 8% annually on average, reaching 12,350 TWh by 2026 [67].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [67] International Energy Agency (IEA). Renewables 2021—Analysis and forecast to 2026. Paris: IEA; 2021. source
Not checked in the free run.
Probably not a substantial claim: may not pass S2 (checkable).
InterpretationreasoningBioenergy is an excellent alternative to fossil fuels.
“Therefore, this is an excellent alternative to fossil fuels [62, 63].”
Quote in the paperNot a substantial claim0 of 2 sources checkedMay combine two claims.
PremisecitationConventional fossil fuel energy resources such as coal, natural gas and oil are limited in quantity and will eventually be depleted at current global production rates, with estimated reserve-to-production lifetimes of approximately 139, 48.8 and 53.5 additional years, respectively.
“Conventional fossil fuel energy resources such as coal, natural gas and oil are limited in quantity and will eventually be depleted at current global production rates, with estimated reserve-to-production lifetimes of approximately 139, 48.8 and 53.5 additional years, respectively [77, 165].”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [77] Johnsson F, Kjärstad J, Rootzén J. The threat to climate change mitigation posed by the abundance of fossil fuels. Climate Policy. 2019;19(2):258–74. source
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- cites [165] Vivoda V, Krame G, Spraggon M. Oil theft, energy security and energy transition in Mexico. Resources. 2023;12(2):30. source
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationClimate change, particularly rising sea levels, is expected to exacerbate saltwater intrusion in many coastal regions worldwide.
“Climate change, particularly rising sea levels, is expected to exacerbate saltwater intrusion in many coastal regions worldwide.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites Fact-sheet 2021
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May combine two claims.
Premisenone givenBiofuels from renewable biomass and agricultural waste are considered more sustainable alternatives to fossil fuels with lower carbon emissions.
“Biofuels from renewable biomass and agricultural waste are considered more sustainable alternatives to fossil fuels with lower carbon emissions.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationGlobal energy demand is projected to increase nearly 50% by 2050 compared to 2020, with developing nations driving almost half of this growth.
“Overall, global energy demand is projected to increase nearly 50% by 2050 compared to 2020, with developing nations driving almost half of this growth (Fig. 3) as rising populations and GDP improve living standards and energy access [26, 164].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [26] Das HS, Salem M, Zainuri MAAM, Dobi AM, Li S, Ullah MH. A comprehensive review on power conditioning units and control techniques in fuel cell hybrid systems. Energy Rep. 2022;8:14236–58. source
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- cites [164] Van Ruijven BJ, De Cian E, Sue Wing I. Amplification of future energy demand growth due to climate change. Nat Commun. 2019;10(1):2762. source
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May combine two claims.
PremisecitationCofiring biomass with coal in power stations can assist in renewable energy regulation and minimize pollution.
“Cofiring biomass with coal in power stations can assist in renewable energy regulation and minimize pollution [25, 29].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [25] Dahiya A. Bioenergy: biomass to biofuels and waste to energy. Cambridge: Academic Press; 2020.
Not checked in the free run.
- cites [29] Dawson K. Plant biotechnology and agriculture. Prospects for the 21st Century. Edited by A. Altman and P. Hasagawa. Waltham, MA and London: Elsevier/Academic Press (2012), pp. 586. ISBN 978-0-12-381466-1. Exp Agric. 2012;48(4):599–599. source
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May combine two claims.
PremisecitationBiofuels can blend with conventional fuels or directly substitute them with existing infrastructure, allowing a smooth adoption transition without substantial system changes.
“Biofuels can blend with conventional fuels or directly substitute them with existing infrastructure, allowing a smooth adoption transition without substantial system changes [38].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [38] Dwivedi G, Pillai S, Shukla AK. Study of performance and emissions of engines fueled by biofuels and its blends. In: Methanol and the alternate fuel economy. Singapore: Springer Singapore; 2019. p. 77–106. source
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Probably not a substantial claim: may not pass S4 (based). May combine two claims.
Premisenone givenFossil fuel use has major environmental and health externalities not reflected in market prices, including air and water pollution, crop, forest and wildlife damage, and greenhouse gas emissions driving climate change and ocean acidification.
“The use of fossil fuels such as coal, oil, and gas have major environmental and health externalities not reflected in market prices, including air/water pollution, crop/forest/wildlife damage, and greenhouse gas emissions driving climate change and ocean acidification.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationThe Global Biofuel Alliance aims to mainstream climate-friendly biofuel alternatives, greatly contributing to emission reductions.
“The goal of the GBA is to mainstream these climate-friendly alternatives, greatly contributing to emission reductions [157].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [157] Tang D, Tan GL, Li GW, Liang JG, Ahmad SM, Bahadur A, Bououdina M. State-of-the-art hydrogen generation techniques and storage methods: a critical review. J Energy Storage. 2023;64:107196. source
Not checked in the free run.
May combine two claims.
PremisecitationAffordable fossil fuels will eventually run out, compelling a shift to renewables.
“Nonetheless, affordable fossil fuels will eventually run out, compelling a shift to renewables [62, 63].”
Quote in the paperSubstantial claim0 of 2 sources checkedProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe share of renewable energy in global electricity generation could increase from 26% in 2018 to 57% by 2030 in IRENA's Transforming Energy Scenario.
“Furthermore, the International Renewable Energy Agency (IRENA) forecasts that the share of renewable energy in global electricity generation could increase from 26% in 2018 to 57% by 2030 in their Transforming Energy Scenario [68].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [68] International Renewable Energy Agency (IRENA). Global renewables outlook: energy transformation 2050. Abu Dhabi: IRENA; 2020.
Not checked in the free run.
May combine two claims.
PremisecitationFossil fuel combustion releases greenhouse gases such as CO2 and methane into the atmosphere, causing climate change.
“Fossil fuel combustion releases greenhouse gases such as CO2 and methane into the atmosphere, causing climate change [132].”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [132] Polvani LM, Previdi M, England MR, Chiodo G, Smith KL. Substantial twentieth-century Arctic warming caused by ozone-depleting substances. Nat Clim Chang. 2020;10(2):130–3. source
Not checked in the free run.
May combine two claims.
PremisecitationFossil fuels meet approximately 80% of energy needs but increasingly demonstrate negative environmental impacts from air pollution, climate change, dwindling finite supplies, and volatile prices.
“Fossil fuels meet ~ 80% of energy needs but increasingly demonstrate negative environmental impacts from air pollution due to climate change, alongside dwindling finite supplies and volatile prices [49, 62, 63].”
Quote in the paperSubstantial claim0 of 3 sources checked- cites [49] Gielen D, Boshell F, Saygin D, Bazilian MD, Wagner N, Gorini R. The role of renewable energy in the global energy transformation. Energ Strat Rev. 2019;24:38–50. source
Not checked in the free run.
- cites [62] Hossain E. Energy sources on earth. In: The sun, energy, and climate change. Cham: Springer Nature Switzerland; 2023. p. 69–122. source
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- cites [63] Hossain E. The sun, energy, and climate change. Berlin: Springer Nature; 2023. source
Not checked in the free run.
May combine two claims.
PremisecitationRenewables such as solar, wind, geothermal and biofuel can provide substantial emission-free energy for electricity and transportation, supporting energy independence and stability through zero fuel costs.
“Renewables such as solar, wind, geothermal and biofuel can provide substantial emission-free energy for electricity and transportation, supporting energy independence and stability through zero fuel costs.”
Quote in the paperNot a substantial claim0 of 2 sources checkedClassified as probably not a substantial claim. May combine two claims.
PremisecitationHuman activities such as fossil fuel burning and CFC refrigerant use cause global warming, ozone depletion, and both, respectively.
“Human activities such as fossil fuel burning and CFC chlorofluorocarbons refrigerant use have scientifically undisputed impacts CO2, methane and CFCs, respectively cause global warming, ozone depletion and both, respectively [153].”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [153] Soeder DJ. Fracking and the environment: a scientific assessment of the environmental risks from hydraulic fracturing and fossil fuels. Berlin: Springer Nature; 2020.
Not checked in the free run.
May combine two claims.
PremisecitationFirst-generation biofuels present significant challenges including competition with food production, land use concerns, limited greenhouse gas reduction when considering their lifecycle, high water usage, and potential soil degradation from intensive monoculture farming.
“However, they present significant challenges including competition with food production, land use concerns, limited greenhouse gas reduction when considering their lifecycle, high water usage, and potential soil degradation from intensive monoculture farming.”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [143] Safari GH, Safari M, Moussakhani N. An overview of production sources, advantages and disadvantages of biofuels as a renewable energy source. J Environ Sci Stud. 2024;9(1):8054–71.
Not checked in the free run.
May combine two claims.
PremisecitationFossil fuel reserves are finite and being rapidly depleted, with oil potentially peaking soon after.
“Fossil fuel reserves are finite and being rapidly depleted, with oil potentially peaking soon after [154].”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [154] Sofian ADABA, Lim HR, Munawaroh HSH, Ma Z, Chew KW, Show PL. Machine learning and the renewable energy revolution: exploring solar and wind energy solutions for a sustainable future including innovations in energy storage. Sustain Dev. 2024. https://doi.org/10.1002/sd.2885. source
Not checked in the free run.
Probably not a substantial claim: may not pass S2 (checkable).
PremisecitationThe interlocking climate and energy crises require an urgent transition to renewable energy for sustainability and emission reduction.
“These interlocking climate and energy crises require an urgent transition to renewable energy for sustainability and emission reduction [14, 154].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [14] Azni MA, Md Khalid R, Hasran UA, Kamarudin SK. Review of the effects of fossil fuels and the need for a hydrogen fuel cell policy in Malaysia. Sustainability. 2023;15(5):4033. source
Not checked in the free run.
- cites [154] Sofian ADABA, Lim HR, Munawaroh HSH, Ma Z, Chew KW, Show PL. Machine learning and the renewable energy revolution: exploring solar and wind energy solutions for a sustainable future including innovations in energy storage. Sustain Dev. 2024. https://doi.org/10.1002/sd.2885. source
Not checked in the free run.
May combine two claims.
PremisecitationBiomass is a crucial renewable energy source offering long-term sustainability, lower CO2 and sulfur emissions, and greater economic viability than fossil fuels.
“Biomass is recognized as a crucial renewable energy source that offers advantages such as long-term sustainability, lower environmental impact in terms of carbon dioxide (CO2) and sulfur emissions, and greater economic viability than fossil fuels [167].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [167] Wyman CE. Ethanol production from lignocellulosic biomass: overview. In: Handbook on Bioethanol. Milton Park: Routledge; 2018. p. 1–18. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationGlobal biomass supply has been expanding, with solid biomass accounting for 85% and liquid biofuels growing 2% annually from 2000 to 2018.
“The global biomass supply has been steadily expanding, with solid biomass accounting for 85% and liquid biofuels experiencing a 2% annual growth rate from 2000 to 2018 [41, 106].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [41] Ennetta R, Soyhan HS, Koyunoğlu C, Demir VG. Current technologies and future trends for biodiesel production: a review. Arab J Sci Eng. 2022;47(12):15133–51. source
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- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
Not checked in the free run.
May combine two claims.
InterpretationcitationGas fermentation offers potential to produce bioethanol from industrial waste gases, reducing carbon emissions.
“This approach offers the potential to produce bioethanol from industrial waste gases, thereby reducing carbon emissions and providing an additional pathway for sustainable fuel production [109].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [109] Mohammadi M, Najafpour GD, Younesi H, Lahijani P, Uzir MH, Mohamed AR. Bioconversion of synthesis gas to second generation biofuels: a review. Renew Sustain Energy Rev. 2011;15(9):4255–73. source
Not checked in the free run.
May combine two claims.
PremisecitationBiowastes are converted into gaseous biofuels through pyrolysis or gasification, which are used in Otto engines for electricity generation.
“Biowastes are converted into gaseous biofuels through pyrolysis or gasification, which are used in Otto engines for electricity generation.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [125] Pandey A, Larroche C, Gnansounou E, Khanal SK, Dussap CG, Ricke S. Biomass, biofuels, biochemicals: biofuels: alternative feedstocks and conversion processes for the production of liquid and gaseous biofuels. Cambridge: Academic press; 2019.
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationBioethanol is a first-generation biofuel derived from agricultural products such as maize, sugarcane, potatoes, and rice.
“Bioethanol is a first-generation biofuel derived from agricultural products such as maize, sugarcane, potatoes, and rice [106].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe US and the EU are implementing biotechnology approaches to produce 1.3 billion tons annually without compromising food security.
“The US and the EU are implementing biotechnology approaches to produce 1.3 billion tons annually without compromising food security [106].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationEthanol has a larger energy content than petrol, with 11.3 MJ/liter.
“Ethanol has a larger energy content than petrol, with 11.3 MJ/liter.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [27] Dasan YK, Lam MK, Yusup S, Lim JW, Lee KT. Life cycle evaluation of microalgae biofuels production: effect of cultivation system on energy, carbon emission and cost balance analysis. Sci Total Environ. 2019;688:112–28. source
Not checked in the free run.
May combine two claims.
PremisecitationGreen diesel from upgrading procedures has lower cold-filter point, better economic value, and more diverse uses.
“Green diesel generated by upgrading procedures (e.g., aromatization and isomerization) has a lower cold-filter point, better economic value, and more diverse uses.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [51] Gómez-Castro FI, Gutiérrez-Antonio C, Romero-Izquierdo AG, May-Vázquez MM, Hernández S. Intensified technologies for the production of triglyceride-based biofuels: current status and future trends. Renew Sustain Energy Rev. 2023;184:113580. source
Not checked in the free run.
- cites [170] Yan J, Zhao Y, Li K, Zhang H, Fan L, Lu Z. Efficient production of biodiesel from ionic liquid catalyzed esterification using ultrasonic-microwave combined intensification. Chem Eng Process-Process Intensif. 2020;149:107870. source
Not checked in the free run.
- cites [173] Zamri MFMA, Shamsuddin AH, Ali S, Bahru R, Milano J, Tiong SK, Raja Shahruzzaman RMH. Recent advances of triglyceride catalytic pyrolysis via heterogenous dolomite catalyst for upgrading biofuel quality: a review. Nanomaterials. 2023;13(13):1947. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationPyrolysis converts biomass into charcoal, bio-oil, and syngas.
“Is a thermal breakdown process that converts biomass into charcoal, bio-oil, and syngas, which is a key component in biofuel production.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [98] Liu Y, Yuan Y, Ramya G, Singh SM, Chi NTL, Pugazhendhi A, Mathimani T. A review on the promising fuel of the future–Biobutanol; the hindrances and future perspectives. Fuel. 2022;327:125166. source
Not checked in the free run.
May combine two claims.
PremisecitationPhotocatalytic hydrogenation conversion operates under mild conditions, consumes little energy and hydrogen, and achieves high conversion and selectivity.
“Photocatalytic hydrogenation conversion, a new triglyceride conversion method that operates under mild reaction conditions, consumes little energy and hydrogen, and achieves high conversion and selectivity, is a hot topic of research.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [48] García-Martín JF, Barrios CC, Alés-Álvarez FJ, Dominguez-Sáez A, Alvarez-Mateos P. Biodiesel production from waste cooking oil in an oscillatory flow reactor. Performance as a fuel on a TDI diesel engine. Renew Energy. 2018;125:546–56. source
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- cites [87] Kong T, Jiang Y, Xiong Y. Photocatalytic CO 2 conversion: what can we learn from conventional CO x hydrogenation? Chem Soc Rev. 2020;49(18):6579–91. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationEthanol costs approximately one-third less than petrol.
“Ethanol costs approximately one-third less than petrol.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [27] Dasan YK, Lam MK, Yusup S, Lim JW, Lee KT. Life cycle evaluation of microalgae biofuels production: effect of cultivation system on energy, carbon emission and cost balance analysis. Sci Total Environ. 2019;688:112–28. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationGreen diesel is manufactured from hydrocarbons using thermal cracking and hydrogenation processes.
“Green diesel, manufactured from hydrocarbons, is created utilizing thermal cracking and hydrogenation processes [170].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [170] Yan J, Zhao Y, Li K, Zhang H, Fan L, Lu Z. Efficient production of biodiesel from ionic liquid catalyzed esterification using ultrasonic-microwave combined intensification. Chem Eng Process-Process Intensif. 2020;149:107870. source
Not checked in the free run.
May combine two claims.
InterpretationreasoningEasy-to-handle liquid biofuels produced sustainably from biomass and waste can be used to directly replace or blend with fossil fuel equivalents.
“In summary, easy-to-handle liquid biofuels produced sustainably from biomass and waste can be used to directly replace or blend with fossil fuel equivalents.”
Quote in the paperNot a substantial claimMay combine two claims.
PremisecitationAlgae are noncompetitive with food chains while providing diverse end products such as bioethanol, biogas and biodiesel.
“The relevance of algae resides in their noncompetitive nature for food chains while providing diverse end products such as bioethanol, biogas and biodiesel [162].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [162] Umakanth AV, Datta A, Reddy BS, Bardhan S. Biomass feedstocks for advanced biofuels: sustainability and supply chain management. Adv Biofuel Technol. 2022. https://doi.org/10.1016/B978-0-323-88427-3.00023-4. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationLiquefaction converts biomass into liquid fuels using heat and a catalyst, producing bio-oils and biofuels.
“This method converts biomass into liquid fuels using heat and a catalyst, producing bio-oils and biofuels from various feedstocks.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [17] Bhargavi G, Nageswara Rao P, Renganathan S. Review on the extraction methods of crude oil from all generation biofuels in last few decades. IOP conf Ser: Mater Sci Eng. 2018;330:012024. source
Not checked in the free run.
Classified as probably not a substantial claim. May combine two claims.
InterpretationreasoningBiomass conversion technologies present opportunities for sustainable energy generation, reducing reliance on fossil fuels, and mitigating environmental impacts.
“These technologies present opportunities for sustainable energy generation, reducing reliance on fossil fuels, and mitigating environmental impacts.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationBiomass pyrolysis and redox reactions produce gaseous biofuels, including biogas, biohydrogen, and bio syngas, which are low-density, renewable biomass energy sources.
“Biomass pyrolysis and redox reactions produce gaseous biofuels, including biogas, biohydrogen, and bio syngas, which are low-density, renewable biomass energy sources [125, 141].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [125] Pandey A, Larroche C, Gnansounou E, Khanal SK, Dussap CG, Ricke S. Biomass, biofuels, biochemicals: biofuels: alternative feedstocks and conversion processes for the production of liquid and gaseous biofuels. Cambridge: Academic press; 2019.
Not checked in the free run.
- cites [141] Ricke S, Khanal SK, Gnansounou E, Pandey A, Larroche C, Dussap CG. Biomass, biofuels, biochemicals: biofuels: alternative feedstocks and conversion processes for the production of liquid and gaseous biofuels. Amsterdam: Academic Press; 2019.
Not checked in the free run.
May combine two claims.
PremisecitationCompared to solid and gaseous biofuels, liquid biofuels such as bioethanol, biodiesel and bio-oil have higher energy density, benefiting transportation, storage and retrofitting.
“Compared to solid/gaseous biofuels, liquid biofuels such as bioethanol, biodiesel and bio-oil have higher energy density, benefiting transportation, storage and retrofitting [58].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [58] Hafeez S, Al-Salem SM, Manos G, Constantinou A. Fuel production using membrane reactors: a review. Environ Chem Lett. 2020;18:1477–90. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
InterpretationreasoningHydrothermal processing offers a promising approach for converting lignocellulosic biomass into energy and fuels, addressing high moisture content.
“Hydrothermal processing offers a promising approach for effectively converting lignocellulosic biomass into energy and fuels, addressing the challenge of accessing biomass resources that are abundant in nature but often contain high moisture contents.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationOne liter of ethanol is comparable to approximately 0.65 L of gasoline.
“One liter of ethanol is comparable to approximately 0.65 L of gasoline.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [27] Dasan YK, Lam MK, Yusup S, Lim JW, Lee KT. Life cycle evaluation of microalgae biofuels production: effect of cultivation system on energy, carbon emission and cost balance analysis. Sci Total Environ. 2019;688:112–28. source
Not checked in the free run.
May combine two claims.
Premisenone givenLignocellulose-based biofuels have the potential to reduce greenhouse gas emissions, benefit the economy, and enhance energy security.
“Lignocellulose-based biofuels have the potential to reduce greenhouse gas emissions, benefit the economy, and enhance energy security.”
Quote in the paperNot a substantial claimMay combine two claims.
PremisecitationWaste-derived feedstocks like MSW and used cooking oils offer the benefit of recycling waste streams, while purpose-grown crops raise concerns about land use change and competition with food production.
“For instance, waste-derived feedstocks like MSW and used cooking oils offer the benefit of recycling waste streams, while purpose-grown crops raise concerns about land use change and competition with food production [64].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [64] Iaquaniello G, Centi G, Salladini A, Palo E. Waste as a source of carbon for methanol production. In: Methanol. Amsterdam: Elsevier; 2018. p. 95–111. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationOil-to-jet (OTJ) conversion transforms plant or animal oils and lipids into straight-chain alkanes.
“Conversion is a process in which plant or animal oils and lipids are transformed into straight-chain alkanes.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [45] Fitriasari EI, Won W, Liu JJ. Sustainability assessment of biojet fuel produced from pyrolysis oil of woody biomass. Sustain Energy Fuels. 2023. https://doi.org/10.1039/D3SE00468F. source
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- cites [166] Wang WC, Tao L. Biojet fuel conversion technologies. Renew Sustain Energy Rev. 2016;53:801–22. source
Not checked in the free run.
Probably not a substantial claim: may not pass S1 (asserted), S3 (load-bearing). May combine two claims.
PremisecitationResearch has aimed to expand the use of biodiesel feedstocks, including vegetable oils, animal fats, and cooking oils, to promote diverse feedstocks, reduce competition with food production, and enhance sustainability.
“Research has aimed to expand the use of biodiesel feedstocks, including vegetable oils, animal fats, and cooking oils, to promote diverse feedstocks, reduce competition with food production, and enhance sustainability [135, 136].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [135] Rajmani R. Biofuels as an alternative energy source for sustainability. Adv Biotechnol Microbiol. 2019;14:555894.
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- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
Not checked in the free run.
May combine two claims.
PremisecitationAviation accounts for 2% (705 million tons) of global CO2 emissions, but this value could increase to more than 340% to 3.1 billion tons by 2050 if conventional jet fuel remains dominant.
“Currently, aviation accounts for 2% (705 million tons) of global CO2 emissions, but this value could increase to more than 340% to 3.1 billion tons by 2050 if conventional jet fuel remains dominant [34].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [34] Doliente SS, Narayan A, Tapia JFD, Samsatli NJ, Zhao Y, Samsatli S. Bioaviation fuel: a comprehensive review and analysis of the supply chain components. Front Energy Res. 2020;8:110. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationHydrogen is recognized as one of the most competent alternative fuels for generating future net-zero emissions.
“Hydrogen is recognized as one of the most competent alternative fuels for generating future net-zero emissions.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [174] Zhao ZT, Ding J, Wang BY, Bao MY, Liu BF, Pang JW, Yang SS. Advances in the biomass valorization in dark fermentation systems: a sustainable approach for biohydrogen production. Chem Eng J. 2024;481:148444. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationAlcohol-to-jet (ATJ) converts an alcohol (ethanol or butanol) intermediate derived from biomass into jet fuel.
“This technique converts an alcohol (ethanol or butanol) intermediate derived from biomass into jet fuel.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [21] Castro FIG, Gutiérrez-Antonio C. Biofuels and biorefining: current technologies for biomass conversion, vol. 1. Amsterdam: Elsevier; 2022.
Not checked in the free run.
- cites [55] Gunerhan A, Altuntas O, Caliskan H. Utilization of renewable and sustainable aviation biofuels from waste tyres for sustainable aviation transport sector. Energy. 2023;276:127566. source
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe global biofuel sector is expected to be worth more than $200 billion by 2030.
“The global biofuel sector is expected to be worth more than $200 billion by 2030 [5].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [5] Akbarian A, Andooz A, Kowsari E, Ramakrishna S, Asgari S, Cheshmeh ZA. Challenges and opportunities of lignocellulosic biomass gasification in the path of circular bioeconomy. Bioresour Technol. 2022;362:127774. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationGas-to-jet (GTJ) converts biomass to liquids by gasification/Fischer-Tropsch (FT) synthesis.
“It is a process that converts biomass to liquids by gasification/Fischer–Tropsch (FT) synthesis.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [161] Tropea A. Biofuels production and processing technology. Fermentation. 2022;8(7):319. source
Not checked in the free run.
May combine two claims.
Premisenone givenThe 5% bioethanol-petrol blend does not require engine adjustments and may be used at higher levels.
“This blend does not require any engine adjustments and may be used at higher levels.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [1] Abdullah B, Muhammad SAFAS, Shokravi Z, Ismail S, Kassim KA, Mahmood AN, Aziz MMA. Fourth generation biofuel: a review on risks and mitigation strategies. Renew Sustain Energy Rev. 2019;107:37–50. source
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- cites [85] Khoo KS, Ahmad I, Chew KW, Iwamoto K, Bhatnagar A, Show PL. Enhanced microalgal lipid production for biofuel using different strategies including genetic modification of microalgae: a review. Prog Energy Combust Sci. 2023;96:101071. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationThe EU quality standard specifies a 5% blend of bioethanol and petrol.
“The EU quality standard specifies a 5% blend of bioethanol and petrol.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [1] Abdullah B, Muhammad SAFAS, Shokravi Z, Ismail S, Kassim KA, Mahmood AN, Aziz MMA. Fourth generation biofuel: a review on risks and mitigation strategies. Renew Sustain Energy Rev. 2019;107:37–50. source
Not checked in the free run.
- cites [85] Khoo KS, Ahmad I, Chew KW, Iwamoto K, Bhatnagar A, Show PL. Enhanced microalgal lipid production for biofuel using different strategies including genetic modification of microalgae: a review. Prog Energy Combust Sci. 2023;96:101071. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationThe alkali-catalyzed transesterification reaction normally takes approximately 90 min and yields more than 98% of the potential yield.
“The reaction normally takes approximately 90 min and yields more than 98% of the potential yield.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [144] Sankar S, Manivarma VK, Thampi A. Performance and emission analysis of a CI engine fuelled with JOME-JOEE-diesel blends. Appl Mech Mater. 2017;867:261–71. source
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May combine two claims.
PremisecitationThe manufacture and use of biojet fuel have the potential to reduce greenhouse gas emissions and the aviation industry's total carbon footprint.
“The manufacture and use of biojet fuel have the potential to reduce greenhouse gas emissions and the industry's total carbon footprint [34, 166].”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [34] Doliente SS, Narayan A, Tapia JFD, Samsatli NJ, Zhao Y, Samsatli S. Bioaviation fuel: a comprehensive review and analysis of the supply chain components. Front Energy Res. 2020;8:110. source
Not checked in the free run.
- cites [166] Wang WC, Tao L. Biojet fuel conversion technologies. Renew Sustain Energy Rev. 2016;53:801–22. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationTransesterification converts triglycerides into fatty esters and glycerol, including biodiesel, using commercial catalysts such as sodium hydroxide or potassium hydroxide, with alkoxides becoming more effective.
“Transesterification is the process of converting triglycerides into fatty esters and glycerol, including biodiesel, using commercial catalysts such as sodium hydroxide or potassium hydroxide, with alkoxides becoming more effective [20, 41].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [20] Brahma S, Nath B, Basumatary B, Das B, Saikia P, Patir K, Basumatary S. Biodiesel production from mixed oils: a sustainable approach toward industrial biofuel production. Chem Eng J Adv. 2022;10:100284. source
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- cites [41] Ennetta R, Soyhan HS, Koyunoğlu C, Demir VG. Current technologies and future trends for biodiesel production: a review. Arab J Sci Eng. 2022;47(12):15133–51. source
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationEthanol has a lower vapor pressure, making it easier to store in pure fuel form than petrol.
“Ethanol also has a lower vapor pressure, making it easier to store in pure fuel form than petrol [27].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [27] Dasan YK, Lam MK, Yusup S, Lim JW, Lee KT. Life cycle evaluation of microalgae biofuels production: effect of cultivation system on energy, carbon emission and cost balance analysis. Sci Total Environ. 2019;688:112–28. source
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May combine two claims.
PremisecitationAdvances in sugar and starch-based ethanol production have improved efficiency and yield through genome shuffling and global transcription machinery engineering, leading to increased production rates and improved stress tolerance.
“Advances in sugar and starch-based ethanol production have improved efficiency and yield through genome shuffling and global transcription machinery engineering, leading to increased production rates and improved stress tolerance [135].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [135] Rajmani R. Biofuels as an alternative energy source for sustainability. Adv Biotechnol Microbiol. 2019;14:555894.
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationSugar-to-jet (STJ) transforms sugars into hydrocarbon fuels via dehydration, oligomerization, distillation, and hydrogenation.
“Sugars are transformed into hydrocarbon fuels via dehydration, oligomerization, distillation, and hydrogenation processes.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [55] Gunerhan A, Altuntas O, Caliskan H. Utilization of renewable and sustainable aviation biofuels from waste tyres for sustainable aviation transport sector. Energy. 2023;276:127566. source
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PremisecitationGlobal biofuel production reached 1914 thousand barrels of oil equivalent per day in 2022, up from 180 thousand barrels of oil equivalent per day in 2000.
“In 2022, global biofuel production reached 1914 thousand barrels of oil equivalent per day, a substantial increase from the 180 thousand barrels of oil equivalent per day produced in 2000 (Fig. 19).”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [5] Akbarian A, Andooz A, Kowsari E, Ramakrishna S, Asgari S, Cheshmeh ZA. Challenges and opportunities of lignocellulosic biomass gasification in the path of circular bioeconomy. Bioresour Technol. 2022;362:127774. source
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PremisecitationBiofuels are an essential component of the renewable energy mix, and have the potential to reduce greenhouse gas emissions and reliance on fossil fuels.
“Biofuels are an essential component of the renewable energy mix, and have the potential to reduce greenhouse gas emissions and reliance on fossil fuels [70].”
Quote in the paperSubstantial claim0 of 1 sources checked- cites [70] IRENA – International Renewable Energy Agency, (2024)
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PremisecitationRecent improvements in biofuel technology have focused on improving production process efficiency, lowering production costs, and expanding the range of feedstocks used to make biofuels.
“Recent improvements in biofuel technology have focused on improving the efficiency of production processes, lowering production costs, and expanding the spectrum of feedstocks that may be utilized to make biofuels [75].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [75] Jiang Y, Wu R, Zhou J, He A, Xu J, Xin F, Dong W. Recent advances of biofuels and biochemicals production from sustainable resources using coco-cultivation systems. Biotechnol Biofuels. 2019;12(1):1–12. source
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationBiodiesel is produced from triglyceride oil derived from vegetable oil, animal fat, or microalgae-derived triglycerides.
“Biodiesel is produced from triglyceride oil, derived from vegetable oil, animal fat, or microalgae-derived triglycerides, with algae-producing oils in high demand, while macroalgae have a low oil content [20].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [20] Brahma S, Nath B, Basumatary B, Das B, Saikia P, Patir K, Basumatary S. Biodiesel production from mixed oils: a sustainable approach toward industrial biofuel production. Chem Eng J Adv. 2022;10:100284. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationThe United States generates the most ethanol (10% ethanol, 90% petrol), followed by Brazil (27% ethanol).
“The United States (US) generates the most ethanol (10% ethanol, 90% petrol), followed by Brazil (27% ethanol) [1, 85].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [1] Abdullah B, Muhammad SAFAS, Shokravi Z, Ismail S, Kassim KA, Mahmood AN, Aziz MMA. Fourth generation biofuel: a review on risks and mitigation strategies. Renew Sustain Energy Rev. 2019;107:37–50. source
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- cites [85] Khoo KS, Ahmad I, Chew KW, Iwamoto K, Bhatnagar A, Show PL. Enhanced microalgal lipid production for biofuel using different strategies including genetic modification of microalgae: a review. Prog Energy Combust Sci. 2023;96:101071. source
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Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationAlkali-catalyzed transesterification occurs at approximately 60 °C and atmospheric pressure.
“The alkali-catalyzed transesterification process occurs at approximately 60 °C and atmospheric pressure.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [144] Sankar S, Manivarma VK, Thampi A. Performance and emission analysis of a CI engine fuelled with JOME-JOEE-diesel blends. Appl Mech Mater. 2017;867:261–71. source
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May combine two claims.
PremisecitationAdvancements in supercritical fluid conversion include process optimization, catalyst development, and integration with other conversion methods.
“Advancements in supercritical fluid conversion include process optimization, catalyst development, and integration with other conversion methods [8, 117].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [8] Ali HEA, El-fayoumy EA, Soliman RM, Elkhatat A, Al-Meer S, Elsaid K, Abdullah MA. Nanoparticle applications in Algal-biorefinery for biofuel production. Renew Sustain Energy Rev. 2024;192:114267. source
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- cites [117] Nema A, Prasad R, Kumar R, Sharma D, Sonaviya DKR, Maurya NS, Kumari A. Conventional and the recent advances in technologies for the production of different generations of biofuels. Biofuels. 2023. https://doi.org/10.1201/9781003197737-5. source
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May combine two claims.
PremisecitationAdvances in photobiological processes include genetic engineering of microorganisms to increase photosynthetic efficiency and lipid synthesis, and the development of photobioreactor technology for large-scale cultivation.
“Advances in this topic include the genetic engineering of microorganisms to increase their photosynthetic efficiency and lipid synthesis, and the development of photobioreactor technology for large-scale cultivation [9, 145].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [9] Ali SS, Mastropetros SG, Schagerl M, Sakarika M, Elsamahy T, El-Sheekh M, Kornaros M. Recent advances in wastewater microalgae-based biofuels production: a state-of-the-art review. Energy Rep. 2022;8:13253–80. source
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- cites [145] Satpati GG, Dikshit PK, Mal N, Pal R, Sherpa KC, Rajak RC, Davoodbasha M. A state-of-the-art review on the cocultivation of microalgae-fungi in wastewater for biofuel production. Sci Total Environ. 2023;870:161828. source
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May combine two claims.
PremisecitationRecent advances in hydrothermal liquefaction (HTL) include the use of catalysts and cosolvents to increase the production and quality of bio-oil, as well as the utilization of diverse feedstocks, such as algae and wet biomass.
“Recent advances in HTL include the use of catalysts and cosolvents to increase the production and quality of bio-oil, as well as the utilization of diverse feedstocks, such as algae and wet biomass [46].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [46] Friedemann A. Life after fossil fuels. a reality check on alternative energy. Cham: Springer-Lecture Notes in Energy; 2021. source
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Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationAlgae-based biofuels have gained popularity because of the high lipid content of microalgae, which may lead to biodiesel production.
“Furthermore, algae-based biofuels have gained popularity because of the high lipid content of microalgae, which may lead to biodiesel production.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [83] Khan MAH, Bonifacio S, Clowes J, Foulds A, Holland R, Matthews JC, Shallcross DE. Investigation of biofuel as a potential renewable energy source. Atmosphere. 2021;12(10):1289. source
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- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
Not checked in the free run.
May combine two claims.
PremisecitationAdvances in gasification technology have boosted process efficiency and syngas quality, and reduced tar and particulate matter emissions.
“Advances in gasification technology have boosted process efficiency and syngas quality, and reduced tar and particulate matter emissions.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [161] Tropea A. Biofuels production and processing technology. Fermentation. 2022;8(7):319. source
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The quote only partly states this claim.
PremisecitationBiofuels can help improve energy security by reducing reliance on imported fossil fuels.
“Biofuels can help improve energy security by reliance on imported fossil fuels.”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [92] Li C, Jia T, Wang H, Wang X, Negnevitsky M, Hu YJ, Wang L. Assessing the prospect of deploying green methanol vehicles in China from energy, environmental and economic perspectives. Energy. 2023;263:125967. source
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- cites [93] Li S, Wu Y, Dao MU, Dragoi EN, Xia C. Spotlighting of the role of catalysis for biomass conversion to green fuels toward a sustainable environment: latest innovation avenues, insights, challenges, and future perspectives. Chemosphere. 2023;318:137954. source
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- cites [94] Li Y, Wang X, Imran A, Aslam MU, Mehmood U. Analyzing the contribution of renewable energy and natural resources for sustainability in G-20 countries: how gross capital formation impacts ecological footprints. Heliyon. 2023;9(8): e18882. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationHydrotreated vegetable oil (HVO) is an advanced biofuel made from animal fat and plant oil.
“This study revealed that hydrotreated vegetable oil (HVO) is an advanced biofuel made from animal fat and plant oil.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [127] Papageridis KN, Charisiou ND, Douvartzides S, Sebastian V, Hinder SJ, Baker MA, Goula MA. Promoting effect of CaO–MgO mixed oxide on Ni/γ-Al2O3 catalyst for selective catalytic deoxygenation of palm oil. Renew Energy. 2020;162:1793–810. source
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May combine two claims.
PremisecitationBiofuel production may use agricultural and forestry wastes, as well as waste materials, diverting them from landfills and mitigating environmental effects.
“Biofuel production may use agricultural and forestry wastes, as well as waste materials, diverting them from landfills and mitigating environmental effects.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [105] Marzocchella A, Chirone R, Paulillo A, Lettieri P, Salatino P. Sustainability assessment of biotechnological processes: LCA and LCC of second-generation biobutanol production. In: Assessing Progress Toward Sustainability. Amsterdam: Elsevier; 2022. p. 365–82. source
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May combine two claims.
PremisecitationMicroalgae-based biodiesel offers high lipid productivity, environmental versatility, and nonarable land use, but challenges in cultivation, harvesting, and lipid extraction remain at the laboratory stage.
“Research on microalgae-based biodiesel offers high lipid productivity, environmental versatility, and nonarable land use. However, challenges in terms of cultivation, harvesting, and lipid extraction remain in the laboratory stage [8, 133].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [8] Ali HEA, El-fayoumy EA, Soliman RM, Elkhatat A, Al-Meer S, Elsaid K, Abdullah MA. Nanoparticle applications in Algal-biorefinery for biofuel production. Renew Sustain Energy Rev. 2024;192:114267. source
Not checked in the free run.
- cites [133] Qiao J, Cui H, Wang M, Fu X, Wang X, Li X, Huang H. Integrated biorefinery approaches for the industrialization of cellulosic ethanol fuel. Biores Technol. 2022;360:127516. source
Not checked in the free run.
May combine two claims.
PremisecitationBiofuel production may boost rural economies by generating jobs in agriculture, feedstock production, processing, and distribution, and can create new revenue options for farmers and boost rural communities.
“Biofuel production may boost rural economies by generating jobs in agriculture, feedstock production, processing, and distribution. It can create new revenue options for farmers and boost rural communities [100, 139].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [100] Lu H, Yadav V, Bilal M, Iqbal HM. Bioprospecting microbial hosts to valorize lignocellulose biomass–Environmental perspectives and value-added bioproducts. Chemosphere. 2022;288:132574. source
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- cites [139] Raud M, Kikas T, Sippula O, Shurpali NJ. Potentials and challenges in lignocellulosic biofuel production technology. Renew Sustain Energy Rev. 2019;111:44–56. source
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May combine two claims.
PremisecitationPrice fluctuations in fossil fuels can affect the market potential of biofuels; when fossil fuel costs rise, biofuels become more competitive, and when they fall dramatically, biofuels may struggle to retain competitiveness.
“Price fluctuations in fossil fuels can have an impact on the market potential of biofuels. When fossil fuel costs rise, biofuels become more competitive and appealing to customers. However, if fossil fuel costs fall dramatically, biofuels may struggle to retain competitiveness [60, 134].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [60] Heo S, Byun J, Ifaei P, Ko J, Ha B, Hwangbo S, Yoo C. Toward mega-scale decarbonized industrial park (Mega-DIP): generative AI-driven techno-economic and environmental assessment of renewable and sustainable energy utilization in petrochemical industry. Renew Sustain Energy Rev. 2024;189:113933. source
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- cites [134] Rai AK, Al Makishah NH, Wen Z, Gupta G, Pandit S, Prasad R. Recent developments in lignocellulosic biofuels, a renewable source of bioenergy. Fermentation. 2022;8(4):161. source
Not checked in the free run.
May combine two claims.
PremisecitationAdvances in technology, scale, and feedstock availability can reduce production costs and increase competitiveness of biofuels.
“Advances in technology, scale, and feedstock availability can all assist in reducing production costs and increasing competitiveness [120].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [120] Ögmundarson Ó, Sukumara S, Herrgård MJ, Fantke P. Combining environmental and economic performance for bioprocess optimization. Trends Biotechnol. 2020;38(11):1203–14. source
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May combine two claims.
PremisecitationClearing land for biofuel crops can result in wildlife habitat loss, ecological disruption, and detrimental implications for biodiversity.
“Clearing land for biofuel crops can result in wildlife habitat loss, ecological disruption, and detrimental implications for biodiversity [137].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [137] Ramirez KDR, Ñañez KB, Gomez CLG, Moreira ÍTA. Efficient PAHs removal and CO2 fixation by marine microalgae in wastewater using an airlift photobioreactor for biofuel production. Environ Res. 2024;261:119672. source
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Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationBiofuels are derived from a variety of renewable sources, not limited to biomass alone, and encompass a broader range of feedstocks and production methods.
“Biofuels are derived from a variety of renewable sources, not limited to biomass alone. While many biofuels are indeed produced from plant-based biomass, which absorbs atmospheric CO2 during growth, the category of biofuels encompasses a broader range of feedstocks and production methods.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [117] Nema A, Prasad R, Kumar R, Sharma D, Sonaviya DKR, Maurya NS, Kumari A. Conventional and the recent advances in technologies for the production of different generations of biofuels. Biofuels. 2023. https://doi.org/10.1201/9781003197737-5. source
Not checked in the free run.
Probably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationCertification programs such as the Roundtable on Sustainable Biomaterials (RSB) and the International Sustainability and Carbon Certification (ISCC) provide requirements for sustainable feedstock production.
“Certification programs, such as the Roundtable on Sustainable Biomaterials (RSB) and the International Sustainability and Carbon Certification (ISCC), provide requirements for sustainable feedstock production [101, 172].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [101] Ma X, Pan Y, Zhang M, Ma J, Yang W. Impact of carbon emission trading and renewable energy development policy on the sustainability of electricity market: a Stackelberg game analysis. Energy Econ. 2024;129:107199. source
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- cites [172] Yu X, Wu Z, Wang Q, Sang X, Zhou D. Exploring the investment strategy of power enterprises under the nationwide carbon emissions trading mechanism: a scenario-based system dynamics approach. Energy Policy. 2020;140:111409. source
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PremisecitationPlant-based and algal biofuels can potentially offer a closed carbon cycle, while other feedstocks may provide environmental benefits through waste reduction or by avoiding new greenhouse gas emissions.
“While plant-based and algal biofuels can potentially offer a closed carbon cycle, other feedstocks may provide environmental benefits through waste reduction or by avoiding new greenhouse gas emissions.”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
Not checked in the free run.
May combine two claims.
PremisecitationBiofuels are made from renewable biomass, which absorbs atmospheric CO2 during growth; when combusted, the CO2 emitted is countered by the carbon absorbed during feedstock cultivation, resulting in net emission reductions.
“Biofuels are made from renewable biomass, which absorbs atmospheric CO2 throughout the growing period. When combusted, biofuels emit CO2, but this emission is countered by the carbon absorbed during feedstock cultivation, resulting in net emission reductions [138, 136].”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [138] Ramos A, Monteiro E, Rouboa A. Biomass pretreatment techniques for the production of biofuels using thermal conversion methods–A review. Energy Convers Manage. 2022;270:116271. source
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- cites [136] Rame R, Purwanto P, Sudarno S. Biotechnological approaches in utilizing agro-waste for biofuel production: an extensive review on techniques and challenges. Bioresour Technol Rep. 2023;24:101662. source
Not checked in the free run.
May combine two claims.
PremisecitationSustainability certification schemes and standards for biofuels can assure ecologically and socially acceptable production processes and help differentiate biofuels in the market and offer customers confidence in their sustainability.
“The creation of sustainability certification schemes and standards for biofuels is an opportunity to assure ecologically and socially acceptable production processes [89]. Certifications can assist in the differentiation of biofuels in the market and offer customers confidence in their sustainability [105].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [89] Kumar A, Singh VP, Srivastava A. Quality biodiesel via biotransesterification from inedible renewable sources. J Clean Prod. 2022;379:134653. source
Not checked in the free run.
- cites [105] Marzocchella A, Chirone R, Paulillo A, Lettieri P, Salatino P. Sustainability assessment of biotechnological processes: LCA and LCC of second-generation biobutanol production. In: Assessing Progress Toward Sustainability. Amsterdam: Elsevier; 2022. p. 365–82. source
Not checked in the free run.
May combine two claims.
PremisecitationBiofuels produce lower amounts of sulfur dioxide, particulate matter, and nitrogen oxides than fossil fuels, which can improve air quality and alleviate respiratory and cardiovascular health effects, especially in heavily populated regions.
“Biofuels produce lower amounts of sulfur dioxide, particulate matter, and nitrogen oxides than fossil fuels, all of which have been linked to respiratory and cardiovascular problems. Using biofuels in transportation can help alleviate these health effects and improve local air quality, especially in heavily populated regions [39, 47].”
Quote in the paperSubstantial claim0 of 2 sources checked- cites [39] Ekici F, Orhan G, Gümüş Ö, Bahce AB. A policy on the externality problem and solution suggestions in air transportation: the environment and sustainability. Energy. 2022;258:124827. source
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- cites [47] Gaffney JS, Marley NA. The impacts of combustion emissions on air quality and climate–from coal to biofuels and beyond. Atmos Environ. 2009;43(1):23–36. source
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May combine two claims.
PremisecitationLand use changes can cause soil erosion, nutrient depletion, water consumption, biodiversity loss, and increased GHG emissions.
“Land use changes can have important environmental impacts, such as soil erosion, nutrient depletion, water consumption, and biodiversity loss, as well as increasing GHG emissions [106].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
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May combine two claims.
PremisecitationBiofuels are totally biodegradable, unlike other gasoline additives.
“According to the US Department of Energy, biofuels are totally biodegradable, unlike other gasoline additives [142].”
Quote in the paperNot a substantial claim0 of 1 sources checked- cites [142] Rutz, D., & Janssen, R. (2007). Biofuel technology handbook. WIP Renewable energies, 95.
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May combine two claims.
PremisecitationAdvances in conversion technology can help biofuels become more economically viable by lowering production costs, improving output, boosting energy efficiency, and improving quality.
“Advances in conversion technology, such as enhanced enzyme efficiency, process optimization, and production scale, can help biofuels become more economically viable. Technological innovation can assist in lowering production costs, improving output, boosting energy efficiency, and improving the quality of biofuels [43, 134].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [43] Fazal S, Haque ME, Arif MT, Gargoom A, Oo AMT. Grid integration impacts and control strategies for renewable based microgrid. Sustainable Energy Technol Assess. 2023;56:103069. source
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- cites [134] Rai AK, Al Makishah NH, Wen Z, Gupta G, Pandit S, Prasad R. Recent developments in lignocellulosic biofuels, a renewable source of bioenergy. Fermentation. 2022;8(4):161. source
Not checked in the free run.
May combine two claims.
PremisecitationMany nations have enacted renewable fuel standards or blending goals requiring a particular amount of biofuels in transportation fuels, which increase market demand and provide long-term stability for producers.
“Many nations have enacted renewable fuel standards or blending goals, which require a particular number of biofuels as transportation fuels. These measures increase the market demand for biofuels while also providing long-term stability for producers.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [53] Grangeia C, Santos L, Lazaro LLB. The Brazilian biofuel policy (RenovaBio) and its uncertainties: an assessment of technical, socioeconomic and institutional aspects. Energy Convers Manag X. 2022;13:100156.
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- cites [60] Heo S, Byun J, Ifaei P, Ko J, Ha B, Hwangbo S, Yoo C. Toward mega-scale decarbonized industrial park (Mega-DIP): generative AI-driven techno-economic and environmental assessment of renewable and sustainable energy utilization in petrochemical industry. Renew Sustain Energy Rev. 2024;189:113933. source
Not checked in the free run.
May combine two claims.
PremisecitationInternational trade and market dynamics can influence the market potential of biofuels, and biofuel imports and exports can be affected by trade policies, taxes, subsidies, and restrictions.
“International trade and market dynamics might influence the market potential of biofuels. Biofuel imports and exports can be affected by different nations' trade policies, taxes, subsidies, and restrictions.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [20] Brahma S, Nath B, Basumatary B, Das B, Saikia P, Patir K, Basumatary S. Biodiesel production from mixed oils: a sustainable approach toward industrial biofuel production. Chem Eng J Adv. 2022;10:100284. source
Not checked in the free run.
- cites [103] Mahmud R, Moni SM, High K, Carbajales-Dale M. Integration of techno-economic analysis and life cycle assessment for sustainable process design–A review. J Clean Prod. 2021;317:128247. source
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May combine two claims.
InterpretationreasoningCellulosic ethanol from waste biomass and algae biofuels are becoming increasingly commercially viable and might be generated on a large scale in a sustainable manner.
“Cellulosic ethanol from waste biomass and promising technologies such as algae biofuels are becoming increasingly commercially viable and might be generated on a large scale in a sustainable manner.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable), S3 (load-bearing), S4 (based).
Interpretationnone givenInternational collaboration can help to reconcile global competitiveness with responsible manufacturing.
“International collaboration can help to reconcile global competitiveness with responsible manufacturing.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable), S4 (based).
InterpretationreasoningAdditional research and development are still necessary to boost production and efficiency while lowering expenses.
“Additional research and development are still necessary to boost production and efficiency while lowering expenses.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationResearchers are investigating novel biofuel feedstock options such as algae, camelina, municipal solid waste, and other specialized feedstocks to reduce the environmental impact of biofuel production.
“Researchers are investigating novel biofuel feedstock options, such as algae, camelina, municipal solid waste, and other specialized feedstocks, to help reduce the environmental impact of biofuel production (Mat et al., 2020; [71].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites Mat et al., 2020 source
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- cites [71] Jayachandran M, Gatla RK, Rao KP, Rao GS, Mohammed S, Milyani AH, Geetha S. Challenges in achieving sustainable development goal 7: affordable and clean energy in light of nascent technologies. Sustain Energy Technol Assess. 2022;53:102692.
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Probably not a substantial claim: may not pass S2 (checkable), S4 (based).
InterpretationreasoningWith further innovation and appropriate deployment, biofuels can play an important role in establishing long-term low-carbon economies while avoiding the difficulties previously encountered.
“With further innovation and appropriate deployment, biofuels can play an important role in establishing long-term low-carbon economies while avoiding the difficulties previously encountered.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable), S4 (based). May combine two claims.
InterpretationreasoningMore research is needed to increase production, improve sustainability, and enable large-scale commercialization.
“More research is needed to increase production, improve sustainability, and enable large-scale commercialization.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable).
InterpretationreasoningRealizing the full potential of biofuels will require continued efforts across industries.
“While progress has been made in terms of biofuels in recent years, realizing their full potential will require continued efforts across industries.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S4 (based). May combine two claims.
Interpretationnone givenBiofuels have the potential to significantly reduce dependency on fossil fuels and their associated greenhouse gas emissions, playing an important role in the global energy transition.
“Biofuels have the potential to significantly reduce dependency on fossil fuels and their associated greenhouse gas emissions, playing an important role in the global energy transition.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing).
PremisecitationSpecific policy and regulatory frameworks for biofuel development differ by country and area, reflecting local goals, resources, and market conditions.
“Specific policy and regulatory frameworks for biofuel development differ by country and area, reflecting local goals, resources, and market conditions.”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [60] Heo S, Byun J, Ifaei P, Ko J, Ha B, Hwangbo S, Yoo C. Toward mega-scale decarbonized industrial park (Mega-DIP): generative AI-driven techno-economic and environmental assessment of renewable and sustainable energy utilization in petrochemical industry. Renew Sustain Energy Rev. 2024;189:113933. source
Not checked in the free run.
- cites [63] Hossain E. The sun, energy, and climate change. Berlin: Springer Nature; 2023. source
Not checked in the free run.
Probably not a substantial claim: may not pass S4 (based).
Interpretationnone givenIntegrated biorefinery systems have the potential for synergistic effects on the production of biofuels as well as bio-based chemicals and materials.
“Furthermore, integrated biorefinery systems have the potential for synergistic effects on the production of biofuels as well as bio-based chemicals and materials.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S4 (based).
Interpretationnone givenThe adaptability of biofuels enables them to blend with emerging energy systems that rely more on solar, wind, and other renewables.
“The adaptability of biofuels enables them to blend with emerging energy systems that rely more on solar, wind, and other renewables.”
Quote in the paperNot a substantial claimClassified as probably not a substantial claim. May combine two claims.
InterpretationreasoningFirst-generation biofuels made from food crops have been criticized for their sustainability, while advanced biofuels promise to harness the advantages of bioenergy while minimizing unforeseen effects.
“First-generation biofuels made from food crops have been criticized for their sustainability, while advanced biofuels promise to harness the advantages of bioenergy while minimizing unforeseen effects.”
Quote in the paperSubstantial claimMay combine two claims.
PremisecitationGovernments frequently offer financial incentives such as tax credits, grants, loan guarantees, and subsidies to offset the higher costs of producing biofuels compared to fossil fuels, attracting investment and boosting use.
“Governments frequently offer financial incentives to encourage biofuel production and usage. Tax credits, grants, loan guarantees, and subsidies may be used to offset the greater costs of producing biofuels in comparison to fossil fuels. Financial incentives serve to attract investment, decrease market obstacles, and boost the use of biofuels [122, 172].”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [122] Osman AI, Chen L, Yang M, Msigwa G, Farghali M, Fawzy S, Yap PS. Cost, environmental impact, and resilience of renewable energy under a changing climate: a review. Environ Chem Lett. 2023;21(2):741–64. source
Not checked in the free run.
- cites [172] Yu X, Wu Z, Wang Q, Sang X, Zhou D. Exploring the investment strategy of power enterprises under the nationwide carbon emissions trading mechanism: a scenario-based system dynamics approach. Energy Policy. 2020;140:111409. source
Not checked in the free run.
Probably not a substantial claim: may not pass S2 (checkable), S4 (based).
InterpretationreasoningThe distinct features of liquid biofuels position them as pioneering agents for greener transportation systems in the future.
“The distinct features of liquid biofuels position them as pioneering agents for greener transportation systems in the future.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable). May combine two claims.
PremisecitationAddressing sustainability issues connected with biofuel production, such as land use changes and water consumption, and optimizing production techniques are critical to reduce environmental effects.
“It is critical to address the sustainability issues connected with biofuel production, such as land use changes and water consumption, as well as optimize production techniques to reduce environmental effects [71, 106]”
Quote in the paperNot a substantial claim0 of 2 sources checked- cites [71] Jayachandran M, Gatla RK, Rao KP, Rao GS, Mohammed S, Milyani AH, Geetha S. Challenges in achieving sustainable development goal 7: affordable and clean energy in light of nascent technologies. Sustain Energy Technol Assess. 2022;53:102692.
Not checked in the free run.
- cites [106] Mat Aron NS, Khoo KS, Chew KW, Show PL, Chen WH, Nguyen THP. Sustainability of the four generations of biofuels–a review. Int J Energy Res. 2020;44(12):9266–82. source
Not checked in the free run.
Probably not a substantial claim: may not pass S4 (based).
Interpretationnone givenWaste carbon emissions can be repurposed using tailored biofuel processes.
“Waste carbon emissions can even be repurposed using tailored biofuel processes.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S2 (checkable).
InterpretationreasoningBiofuels provide one way to fuel the Earth's constant energy flows in a brighter future.
“While decreasing fossil fuel consumption is still critical in the battle against climate change, biofuels provide one way to fuel the Earth's constant energy flows in a brighter future.”
Quote in the paperNot a substantial claimProbably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.
PremisecitationResearchers are investigating nanotechnology, new catalysts, biorefinery designs, genetic engineering to increase energy crop yields, and reducing costs of cellulosic ethanol and other advanced biofuel technologies to increase efficiency and sustainability of biofuel production.
“For example, researchers are investigating the use of nanotechnology to increase biofuel production [158], improve biofuel production efficiencies through the use of new catalysts, and biorefinery designs, utilize biotechnology such as genetic engineering to increase energy crop yields, and continue to reduce the costs of cellulosic ethanol and other advanced biofuel technologies [49, 130].”
Quote in the paperNot a substantial claim0 of 3 sources checked- cites [158] Tareen WUK, Dilbar MT, Farhan M, Ali Nawaz M, Durrani AW, Memon KA, Aamir M. Present status and potential of biomass energy in Pakistan based on existing and future renewable resources. Sustainability. 2019;12(1):249. source
Not checked in the free run.
- cites [49] Gielen D, Boshell F, Saygin D, Bazilian MD, Wagner N, Gorini R. The role of renewable energy in the global energy transformation. Energ Strat Rev. 2019;24:38–50. source
Not checked in the free run.
- cites [130] Peixoto I, Temmes A. Market organizing in the European Union’s biofuels market: organizing for favoring, acceptability, and future preferences. J Clean Prod. 2019;236:117476. source
Not checked in the free run.
The paper relies on this without support.
There are key research gaps in biofuel production that this review addresses.
“This comprehensive review addresses several key research gaps in the field of biofuel production.”
“It addresses critical research gaps by providing a comprehensive analysis of emerging technologies, sustainability metrics, and economic viability of various biofuel pathways.”
The paper relies on this without support.
Technological advancements can increase biofuel yields, reduce production costs, and improve overall sustainability.
“Technological advancements hold the key to increasing biofuel yields, reducing production costs, and improving overall sustainability.”
The paper relies on this without support.
Responsible implementation, including proper land-use planning, resource management, and adherence to sustainability criteria, is critical for the long-term viability of biofuel production.
“Responsible implementation, including proper land-use planning, resource management, and adherence to sustainability criteria, is emphasized as critical for the long-term viability of biofuel production.”
The paper relies on this without support.
Burning bioenergy produces the same amount of CO2 as the plant acquired during photosynthesis when living.
“However, this process produces the same amount of CO2 as the plant acquired during photosynthesis when living.”
The paper relies on this without support.
Biodiesel produced by transesterification has poor density and stability that do not match modern transportation engines.
“While biodiesel produced by transesterification is commonly mixed with petroleum diesel, its poor density and stability do not match the needs of modern transportation engines.”
The paper relies on this without support.
The choice of biomass–energy conversion method depends on factors such as energy density, size, moisture content, and intermittent supply.
“The choice of biomass–energy conversion method depends on factors such as energy density, size, moisture content, and intermittent supply.”
The paper relies on this without support.
Biofuels are widely seen as a cost-effective and ecologically friendly alternative to petroleum and other fossil fuels.
“Biofuels are widely seen as a cost-effective and ecologically friendly alternative to petroleum and other fossil fuels, especially in light of rising petroleum prices and growing concern about the impacts of fossil fuels on global warming.”
The paper relies on this without support.
Upgrading processes address main challenges of raw bio-oil: high oxygen content (35-40 wt.%), high water content (15-30 wt.%), high acidity (pH 2-3), and chemical instability.
“These upgrading processes aim to address the main challenges of raw bio-oil, including high oxygen content (typically 35–40 wt.%), high water content (15–30 wt.%), high acidity (pH 2–3), and chemical instability.”
The paper relies on this without support.
SAF represent a crucial pathway for reducing the carbon footprint of the aviation industry.
“Sustainable aviation fuels (SAF) represent a crucial pathway for reducing the carbon footprint of the aviation industry.”
The paper relies on this without support.
SAF can be produced from a wide range of non-petroleum-based renewable feedstocks, offering significant potential for greenhouse gas emissions reduction compared to conventional jet fuel.
“SAF can be produced from a wide range of non-petroleum-based renewable feedstocks, offering significant potential for greenhouse gas emissions reduction compared to conventional jet fuel.”
The paper relies on this without support.
The choice of feedstock significantly influences the production pathway and the final fuel characteristics.
“The choice of feedstock significantly influences the production pathway and the final fuel characteristics.”
The paper relies on this without support.
Concerns about global oil price volatility, energy supply security, global warming, and the creation of new agricultural prospects are among the primary motivating causes for biofuel research.
“Concerns about global oil price volatility, energy supply security, global warming, and the creation of new agricultural prospects are among the primary motivating causes for biofuel research.”
The paper relies on this without support.
Ambitious government regulations, energy security, concerns about sustainable agriculture, and a decrease in CO2 emissions in the transportation sector have become key drivers of biofuel production growth.
“Furthermore, ambitious government regulations, energy security, concerns about sustainable agriculture, and a decrease in CO2 emissions in the transportation sector have all become key drivers of biofuel production growth.”
The authors state this as an assumption.
Regulations promoting biofuel use and production will enhance energy security and reduce greenhouse gas emissions in vital industries.
“with the assumption that they will enhance energy security and reduce greenhouse gas emissions in vital industries.”
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
Catalysts optimize gasification process, facilitating efficient conversion of raw algal materials into refined, energy-dense biofuels suitable for transportation, industry, and power generation.
“Catalysts optimize the gasification process, facilitating the efficient conversion of abundant raw algal materials into refined, energy-dense biofuels suitable for diverse applications, including transportation, industry, and power generation [101].”
From Algal-Based Carbonaceous Materials for Environmental Remediation: Advances in Wastewater Treatment, Carbon Sequestration, and Biofuel Applications (2025) · cites this paper as [101]
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
Each contradiction between two passages listed here was confirmed by an independent check.
Conflicting energy-density values for ethanol
MajorThe text gives ethanol an energy content of 11.3 MJ/liter, while Table 7 lists both corn and sugarcane ethanol at 21.2 MJ/liter.
“Ethanol has a larger energy content than petrol, with 11.3 MJ/liter.”
“| Corn ethanol | 0.55–0.75 | 21.2 | 25.9–35.4 |”
Hydrothermal-processing ranges exclude a process listed beneath them
MinorThe stated overall temperature and pressure ranges for hydrothermal processing exclude the subsequently specified conditions for hydrothermal gasification.
“The process occurs in an aqueous environment at subcritical and supercritical temperatures (180 to 375 °C) and pressures (2 to 22 MPa).”
“Hydrothermal gasification (HTG) takes place at higher temperatures, typically 400–700 °C, and pressures above 25 MPa, converting biomass primarily into gases such as hydrogen and methane [169].”
Ethanol described as more energy-dense than petrol
MinorThe text says ethanol has a larger energy content than petrol, but Table 7 lists ethanol at 21.2 MJ/liter and conventional gasoline at 34.2 MJ/liter.
“Ethanol has a larger energy content than petrol, with 11.3 MJ/liter.”
“| Conventional gasoline | 0.5–0.65 | 34.2 | 14.6–19.0 |”
The citation lists haven’t been fetched yet
References 154 · Cited by 276
Research works printed but not linked: 17
- Castro FIG, Gutiérrez-Antonio C. Biofuels and biorefining: current technologies for biomass conversion, vol. 1. Amsterdam: Elsevier; 2022.
- Cherwoo L, Gupta I, Flora G, Verma R, Kapil M, Arya SK, Ashokkumar V. Biofuels an alternative to traditional fossil fuels: a comprehensive review. Sustain Energy Technol Assess. 2023;60:103503.
- Dafoe J, Mizerny A, Zimmerman J, Mendez A, Bogart Z, Bell AT. Techno-economic analysis of sustainable aviation fuel production via alcohol-to-jet conversion of ethanol from industrial off-gases. Energy Environ Sci. 2022;15(5):2122–36.
- Dahiya A. Bioenergy: biomass to biofuels and waste to energy. Cambridge: Academic Press; 2020.
- Hakeem KR, Bandh SA, Malla FA, Mehmood MA. Environmental sustainability of biofuels: prospects and challenges. Amsterdam: Elsevier; 2022.
- International Renewable Energy Agency (IRENA). Global renewables outlook: energy transformation 2050. Abu Dhabi: IRENA; 2020.
- IPCC. Special report on renewable energy sources and climate change mitigation. Cambridge, New York: Cambridge University Press; 2011.
- Jayachandran M, Gatla RK, Rao KP, Rao GS, Mohammed S, Milyani AH, Geetha S. Challenges in achieving sustainable development goal 7: affordable and clean energy in light of nascent technologies. Sustain Energy Technol Assess. 2022;53:102692.
- Laherrere J. Forecasting production from discovery. Lisbon: ASPO; 2005.
- Murthy GS, Gnansounou E, Khanal SK, Pandey A. Biomass, biofuels, biochemicals: green-economy: systems analysis for sustainability. Amsterdam: Elsevier; 2021.
- Pachaiappan R, Cornejo-Ponce L, Sagade AA, Mani M, Aroulmoji V, Rajan VF, Manavalan K. A concise review of recent biohydrogen production technologies. Sustain Energy Technol Assess. 2024;62:103606.
- Pandey A, Larroche C, Gnansounou E, Khanal SK, Dussap CG, Ricke S. Biomass, biofuels, biochemicals: biofuels: alternative feedstocks and conversion processes for the production of liquid and gaseous biofuels. Cambridge: Academic press; 2019.
- Pandey A, Lee DJ, Chang JS, Chisti Y, Soccol CR. Biomass, biofuels, BOOK, biochemicals: biofuels from algae. Amsterdam: Elsevier; 2018.
- Rajmani R. Biofuels as an alternative energy source for sustainability. Adv Biotechnol Microbiol. 2019;14:555894.
- Ricke S, Khanal SK, Gnansounou E, Pandey A, Larroche C, Dussap CG. Biomass, biofuels, biochemicals: biofuels: alternative feedstocks and conversion processes for the production of liquid and gaseous biofuels. Amsterdam: Academic Press; 2019.
- Safari GH, Safari M, Moussakhani N. An overview of production sources, advantages and disadvantages of biofuels as a renewable energy source. J Environ Sci Stud. 2024;9(1):8054–71.
- Schmidt J. Development and evaluation of microalgae screening procedures and cultivation systems for biofuel applications [Doctoral dissertation]. Technische Universität München; 2018.
- Authors
- El-Araby, R.
- Affiliations
- National Research Centre (EG)
- Corresponding author
- El-Araby, R.
- ORCID
- El-Araby, R.
- Venue
- Biotechnology for Biofuels and Bioproducts
- Published
- 2024-10-15
- Volume
- 17
- Issue
- 1
- Pages
- 129-129
- ISSN
- 2731-3654 (ISSN-L)
- PMC
- PMC11481588
- OpenAlex
- W4403414918
- Cited by
- 276
- References
- 154
- Citations by year
- 2026: 144 · 2025: 131 · 2024: 1
- FWCI
- 9.89
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Biotechnology for Biofuels and Bioproducts (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- National Research Centre Egypt
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Life Sciences › Agricultural and Biological Sciences › General Agricultural and Biological Sciences › Bioeconomy and Sustainability Development
- Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Bioenergy crop production and management
- Keywords
- biofuel production, renewable energy, biofuel feedstock, algae, agricultural waste, greenhouse gas emissions reduction, energy security, biofuel economics, land use competition, sustainability criteria, biofuel conversion technologies, rural development, biofuel policy
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-10.
Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-10.
Statistics and arithmetic are recomputed, not judged.
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