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Influence of Pyrolysis Temperature on Physico-Chemical Properties of Corn Stover (Zea mays L.) Biochar and Feasibility for Carbon Capture and Energy Balance
Open accessAbstract
This study examined the influence of pyrolysis temperature on biochar characteristics and evaluated its suitability for carbon capture and energy production. Biochar was produced from corn stover using slow pyrolysis at 300, 400 and 500°C and 2 hrs holding time. The experimental biochars were characterized by elemental analysis, BET, FTIR, TGA/DTA, NMR (C-13). Higher heating value (HHV) of feedstock and biochars was measured using bomb calorimeter. Results show that carbon content of corn stover biochar increased from 45.5% to 64.5%, with increasing pyrolysis temperatures. A decrease in H:C and O:C ratios as well as volatile matter, coupled with increase in the concentration of aromatic carbon in the biochar as determined by FTIR and NMR (C-13) demonstrates a higher biochar carbon stability at 500°C. It was estimated that corn stover pyrolysed at 500°C could provide of 10.12 MJ/kg thermal energy. Pyrolysis is therefore a potential technology with its carbon-negative, energy positive and soil amendment benefits thus creating win- win scenario.
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“increased pyrolysis temperature caused an increase of 5.7-18.7% in ash content”
From Biochar physicochemical properties: pyrolysis temperature and feedstock kind effects (2020) · cites this paper as Rafiq et al. 2016
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Metadata
- Authors
- Rafiq, M. K., Bachmann, R. T., Rafiq, M. T., Shang, Z., Joseph, S., & Long, R.
- Affiliations
- International Islamic University, Islamabad (PK)
- University of Kuala Lumpur (MY)
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems (CN)
- UNSW Sydney (AU)
- Corresponding author
- Long, Ruijun
- Venue
- PLOS ONE
- Publisher
- Public Library of Science (PLoS)
- Published
- 2016-06-21
- Volume
- 11
- Issue
- 6
- Pages
- e0156894
- ISSN
- 1932-6203 (ISSN-L)
- PMC
- PMC4915615
- OpenAlex
- W2474748449
- Cited by
- 376
- References
- 62
- Citations by year
- 2026: 40 · 2025: 50 · 2024: 53 · 2023: 44 · 2022: 41 · 2021: 59 · 2020: 46 · 2019: 15 · 2018: 18 · 2017: 7 · 2016: 1
- FWCI
- 6.58
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- PLoS ONE (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Lanzhou University Institutional Repository (submittedVersion)
- UNSWorks (UNSW Sydney) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- UNSWorks (University of New South Wales, Sydney, Australia) (submittedVersion, cc-by)
- Greater South Information System
- Funders
- National Natural Science Foundation of China (411714.)
- Ministry of Science and Technology of the People's Republic of China (CN) (2012BAC01B02-3)
- Topics
- Physical Sciences › Energy › Fuel Technology › Thermochemical Biomass Conversion Processes
- Physical Sciences › Chemical Engineering › Filtration and Separation › Carbon Dioxide Capture Technologies
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Keywords
- corn stover, biochar, pyrolysis temperature, slow pyrolysis, CO2 capture, energy balance, higher heating value, carbon content, aromatic carbon, volatile matter, soil amendment, biomass energy
- MeSH terms
- Agriculture, Carbon, Charcoal, China, Zea mays, Feasibility Studies, Hydrogen-Ion Concentration, Surface Properties, Temperature, Thermogravimetry, Waste Products, X-Ray Diffraction, Porosity, Spectroscopy, Fourier Transform Infrared, Chemical Phenomena, Carbon-13 Magnetic Resonance Spectroscopy
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