Journal
BIORESOURCE TECHNOLOGY
Volume 369, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2022.128423
Keywords
Agricultural waste; Resource recovery; Sustainable development; Machine learning; Compositions
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The review provides a comprehensive summary of crop residue pyrolysis processes, influential factors, and biochar applications, adopting a whole system philosophy. It also highlights the importance of process design tools and data-driven modelling techniques, which have been overlooked in prior reviews. The review will contribute to the development of application-oriented process pipelines for crop residue-based biochar.
Worldwide surge in crop residue generation has necessitated developing strategies for their sustainable disposal. Pyrolysis has been widely adopted to convert crop residue into biochar with bio-oil and gas being two co -products. The review adopts a whole system philosophy and systematically summarises up-to-date knowledge of crop residue pyrolysis processes, influential factors, and biochar applications. Essential process design tools for biochar production e.g., cost-benefit analysis, life cycle assessment, and machine learning methods are also reviewed, which has often been overlooked in prior reviews. Important aspects include (a) correlating techno-economics of biochar production with crop residue compositions, (b) process operating conditions and man-agement strategies, (c) biochar applications including soil amendment, fuel displacement, catalytic usage, etc., (d) data-driven modelling techniques, (e) properties of biochar, and (f) climate change mitigation. Overall, the review will support the development of application-oriented process pipelines for crop residue-based biochar.
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