Cited by 20Thermochemical Biomass Conversion ProcessesCoal Properties and UtilizationCoal Combustion and Slurry Processing

Agro-industrial residue torrefaction to bio-coal: Its physico-chemical characterization and potential applications in energy and environmental protection

Yadav, Nidhi, Yadav, Gaurav, Bakthavachalam, Vishnu, Potturaja, Lakshmanan, Roy, Joy K., Elumalai, Sasikumar·2025·Bioresource Technology

Abstract

Leveraging biofuel derived from biomass stands as a pivotal strategy in reducing CO 2 emissions and mitigating the greenhouse effect. Biomass serves as a clean, renewable energy source, offering inherent benefits. However, despite its advantages, biomass encounters obstacles hindering its widespread industrial applications, including its relatively low calorific value, limited grindability, high water content, and susceptibility to corrosion. The torrefaction process has garnered significant attention as an effective method for enhancing the quality of raw biomass for energy production. In this review, we briefly discussed the mechanism of bio-coal preparation using biomass, physico-chemical characterization of different torrefied feedstocks, and the effect of torrefaction parameters, along with the effect of the different types of reactors on biomass torrefaction. Furthermore, bio-coal's emission characteristics and fuel quality throughout the thermal treatment have been covered. Thus, bio-coal finds a wide range of applications in sustainable energy generation, environmental remediation, agri-food development, polymer composites, and others.

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Crossref · 10.1016/j.biortech.2024.131948

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Authors
Yadav, N., Yadav, G., Bakthavachalam, V., Potturaja, L., Roy, J. K., & Elumalai, S.
Affiliations
  • BRIC-National Agri-Food and Biomanufacturing Institute (IN)
  • National Institute Of Technology Silchar (IN)
Corresponding author
Elumalai, Sasikumar
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2025-02
Volume
418
Pages
131948
ISSN
0960-8524 (ISSN-L)
OpenAlex
W4405009990
Cited by
20
References
232
Citations by year
2026: 6 · 2025: 14
FWCI
0.72
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Department of Biotechnology, Ministry of Science and Technology, India
  • Principal Scientific Adviser to the Government of India
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Engineering › Ocean Engineering › Coal Properties and Utilization
  • Physical Sciences › Engineering › Mechanical Engineering › Coal Combustion and Slurry Processing
Keywords
torrefaction, bio-coal, agro-industrial waste, biomass valorization, physicochemical characterization, reactor types, emission characteristics, fuel quality, greenhouse gas emissions reduction, renewable energy, environmental remediation, polymer composites
MeSH terms
Agriculture, Industrial Waste, Biomass, Biofuels

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