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- W4224040310 abstract "Pyrolysis can be used to produce renewable energy and offset greenhouse gas emissions. While the biopower potential of pyrolysis has been widely analyzed, agronomic and environmental benefits under competing pyrolysis modes have not been investigated and compared. This study reviews the properties and characteristics of major pyrolysis technologies including fast, intermediate, slow, gasification, and torrefaction, and then investigates and compares their biopower potential and the biochar-induced agronomic and environmental benefits so that the fundamental figures for future large-scale biopower development can be explored. The results indicate that (1) revenues from energy sale generally outweigh the agronomic and environmental benefits, but the extent depends on the commodity price and emission price; (2) if biochar is not used as an energy source, 10.58%–26.73% of biopower generation is decreased for fast pyrolysis and a 90%–97.44% decrease would occur for torrefaction; (3) biochar-induced agronomic benefits and emission offsets from torrefaction can greatly recover the loss of energy sales; and (4) with torrefaction the emission offset can be up to 2.82–3.19 tonnes carbon dioxide, on a per tonne biomass basis. We also discuss how biochar application might alleviate surface water eutrophication and groundwater pollution. • Mitigation potential of torrefaction is up to 3.19 MT per ton feedstock. • Without the use of biochar, power generation of fast pyrolysis declines by 26.73%. • Torrefaction benefits agronomic mostly but yields least biopower. • Changes in energy and emission prices would cause technology transitions. • Slow pyrolysis balances biopower production and mitigation effects." @default.
- W4224040310 created "2022-04-19" @default.
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- W4224040310 creator A5053837867 @default.
- W4224040310 date "2022-07-01" @default.
- W4224040310 modified "2023-09-28" @default.
- W4224040310 title "A review of biopower and mitigation potential of competing pyrolysis methods" @default.
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- W4224040310 doi "https://doi.org/10.1016/j.rser.2022.112443" @default.
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