Biochar mines: Panacea to climate change and energy crisis?
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10098_2019_1790_ReferencePDF.pdf
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Author(s)
Thengane, Sonal Keshawrao
Bandyopadhyay, Santanu
Date Issued
December 2019
Journal
Clean Technologies and Environmental Policy
Publisher
Springer Science and Business Media LLC
Citation
Thengane, Sonal K. and Santanu Bandyopadhyay. "Biochar mines: Panacea to climate change and energy crisis?" Clean Technologies and Environmental Policy 22, 1 (December 2019): 5–10 © 2019 Springer-Verlag
Version
Author's final manuscript
Abstract
Negative emission technology such as bioenergy with carbon capture and storage is extremely important to offset the presence of atmospheric greenhouse gases. Biochar, a solid product obtained from the thermal decomposition of biomass, is a promising pathway for the storage of solid carbon and energy applications. This article proposes the concept of artificial biochar mines as an encouraging negative emission technology through basic techno-economic analysis. Torrefaction at small-to-medium scale proves to be the preferred process for production of biochar from residual biomass with the CO2 sequestration cost in the range of 43–47 $/t. Benefits of the artificial biochar mine include negative emission with positive energy output, residual biomass management, low risk, less storage space, easy site selection, potentially beneficial applications, economically encouraging, and future energy security.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s10098-019-01790-1
