Breakdown of biomass for energy applications using microwave pyrolysis: A technological review
Allende Leiva, Scarlett, Brodie, Graham, and Jacob, Mohan V. (2023) Breakdown of biomass for energy applications using microwave pyrolysis: A technological review. Environmental Research, 226. 115619.
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Abstract
The agricultural industry faces a permanent increase in waste generation, which is associated with the fast-growing population. Due to the environmental hazards, there is a paramount demand for generating electricity and value-added products from renewable sources. The selection of the conversion method is crucial to develop an eco-friendly, efficient and economically viable energy application. This manuscript investigates the influencing factors that affect the quality and yield of the biochar, bio-oil and biogas during the microwave pyrolysis process, evaluating the biomass nature and diverse combinations of operating conditions. The by-product yield depends on the intrinsic physicochemical properties of biomass. Feedstock with high lignin content is favourable for biochar production, and the breakdown of cellulose and hemicellulose leads to higher syngas formation. Biomass with high volatile matter concentration promotes the generation of bio-oil and biogas. The pyrolysis system's conditions of input power, microwave heating suspector, vacuum, reaction temperature, and the processing chamber geometry were influence factors for optimising the energy recovery. Increased input power and microwave susceptor addition lead to high heating rates, which were beneficial for biogas production, but the excess pyrolysis temperature induce a reduction of bio-oil yield.
Item ID: | 78308 |
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Item Type: | Article (Research - C1) |
ISSN: | 1096-0953 |
Keywords: | Bio-oil, Biochar, Biogas, Biomass, Energy, Microwave pyrolysis |
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Copyright Information: | © 2023 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/bync/4.0/). |
Date Deposited: | 10 Aug 2023 03:56 |
FoR Codes: | 40 ENGINEERING > 4016 Materials engineering > 401699 Materials engineering not elsewhere classified @ 100% |
SEO Codes: | 17 ENERGY > 1707 Processing of energy sources > 170701 Biomass processing @ 100% |
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