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Cited by 38Thermochemical Biomass Conversion ProcessesForest Biomass Utilization and ManagementBiofuel production and bioconversion

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Conversion of biomass blends (walnut shell and pearl millet) for the production of solid biofuel via torrefaction under different conditions

Abdullah, Iqra, Ahmad, Nabeel, Hussain, Murid, Ahmed, Ashfaq, Ahmed, Usama, Park, Young-Kwon·2022·Chemosphere
DOI 10.1016/j.chemosphere.2022.133894
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Abstract

The torrefaction of lignocellulose biomass was conducted to produce biochar with properties compatible with coal. Two lignocellulose biomasses, pearl millet (PM) and walnut shell (WS), were torrefied at different process temperatures (230-300 °C), residence times (30-90 min), and different compositional biomass blends to improve the characteristics of the biochar product. The resulting biochar product exhibited favorable changes in their properties. The pure biomasses and their blends obtained a high biochar yield (41-91%). The gross calorific value (GCV) ranged from 22 to 27 MJ/kg, showing an increase of 22-59% compared to the raw biomass. The torrefaction temperature had the most notable effect on the biochar quantity and quality. The biochar samples obtained from the torrefaction of different blends showed a higher GCV and other physicochemical characteristics than the pure biomasses. Scanning electron microscopy showed that these products might also be used for other applications.

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Metadata

Authors
Abdullah, I., Ahmad, N., Hussain, M., Ahmed, A., Ahmed, U., & Park, Y.-K.
Affiliations
  • COMSATS University Islamabad (PK)
  • Victoria University (AU)
  • King Fahd University of Petroleum and Minerals (SA)
  • University of Seoul (KR)
Corresponding author
  • Ahmad, Nabeel
  • Hussain, Murid
  • Park, Young-Kwon
ORCID
Venue
Chemosphere
Publisher
Elsevier BV
Published
2022-05
Volume
295
Pages
133894
ISSN
0045-6535 (ISSN-L)
DOI
10.1016/j.chemosphere.2022.133894
OpenAlex
W4210934377
Cited by
38
References
1
Citations by year
2026: 6 · 2025: 8 · 2024: 8 · 2023: 13 · 2022: 3
FWCI
2.33
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Chemosphere (publishedVersion)
  • PubMed (publishedVersion)
  • Victoria University Research Repository (Victoria University) (submittedVersion)
Funders
National Research Foundation of Korea (NRF-2020M1A2A2079801, NRF-2021R1A2C3011274)
Topics
  • Physical Sciences › Energy › Fuel Technology › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Forest Biomass Utilization and Management
  • Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
Keywords
torrefaction, biochar, walnut shell, pearl millet, lignocellulosic biomass, biomass blends, solid biofuels, coal substitute, torrefaction temperature, residence time, higher heating value, biochar yield, physicochemical properties
MeSH terms
Coal, Temperature, Biomass, Juglans, Pennisetum, Biofuels

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