Using a hybrid-like supported catalyst to improve green fuel production through hydrothermal liquefaction of Scenedesmus obliquus microalgae
Abstract
Hydrothermal liquefaction of Scenedesmus obliquus has been optimized in a micro reactor using response surface methodology. Temperature, residence time and feedstock concentration were studied through central composite design to verify the optimized conditions leading to the highest yield of bio-crude and energy recovery. Based on the non-catalytic studies, temperature, feedstock concentration, and their interaction were respectively determined as the most effective variables. In order to improve the quality of produced bio-crude, the one step upgrading procedure was carried out in the presence of synthesized heterogeneous catalysts including Ni/AC, Ni/AC-CeO 2 nanorods and Ni/CeO 2 nanorods. Although, it was found that, more or less, all the catalysts were able to improve the bio-crude yield and quality based on their specific characteristics, however using Ni/AC-CeO 2 hybrid like nanorods, not only the bio-crude yield would be improved by more than 9% but also the bio-crude could be upgraded to a green bio-based fuel.
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Response surface methodology is used to anticipate optimum parameter conditions for HTL.
“Moreover, this methodology is the anticipation of optimum parameter conditions [114, 115].”
From Research Progress, Trends, and Future Prospects on Hydrothermal Liquefaction of Algae for Biocrude Production: A Bibliometric Analysis (2024) · cites this paper as [114]
Response surface methodology has been used as a mathematical and statistical tool to evaluate the main factors and interactions of HTL more precisely.
“Thus, the “response surface methodology” (the keyword with six occurrences) has been used as a mathematical and statistical tool to evaluate the main factors and interactions of the HTL in a more precise way.”
From Research Progress, Trends, and Future Prospects on Hydrothermal Liquefaction of Algae for Biocrude Production: A Bibliometric Analysis (2024) · cites this paper as [114]
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- Authors
- Kohansal, K., Tavasoli, A., & Bozorg, A.
- Affiliations
- University of Tehran (IR)
- Corresponding author
- Tavasoli, Ahmad
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2019-04
- Volume
- 277
- Pages
- 136-147
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2905659875
- Cited by
- 36
- References
- 47
- Citations by year
- 2026: 1 · 2025: 3 · 2024: 1 · 2023: 4 · 2022: 8 · 2021: 11 · 2020: 7 · 2019: 1
- FWCI
- 1.90
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
- Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
- Keywords
- hydrothermal liquefaction, Scenedesmus obliquus, microalgae, biocrude, bio-oil upgrading, heterogeneous catalysts, CeO2 nanorods, green fuels, process optimization, microreactors
- MeSH terms
- Temperature, Scenedesmus, Biocatalysis, Biofuels, Microalgae
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