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Title: Biochar mines: Panacea to climate change and energy crisis?
Authors: Thengane, Sonal K.
Bandyopadhyay S.
Published in: Clean Technologies and Environmental Policy
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. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
Citation: Clean Technologies and Environmental Policy, 22(1): 5-10
Issue Date: 2020
Publisher: Springer Science and Business Media Deutschland GmbH
Keywords: Biochar mine
Climate change
Energy security
Negative emission technologies
Techno-economic analysis
ISSN: 1618954X
Author Scopus IDs: 56313269700
Author Affiliations: Thengane, S.K., Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
Bandyopadhyay, S., Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
Corresponding Author: Bandyopadhyay, S.; Department of Energy Science and Engineering, India; email:
Appears in Collections:Journal Publications [HRE]

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