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A new method for the preparation of biomass-based solid fuels: Pyrolysis-impregnation-cobaking

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Listed:
  • Ge, Lichao
  • Zhao, Can
  • Wang, Ziqian
  • Zuo, Mingjin
  • Yao, Lei
  • Wu, Kefeng
  • Wang, Yang
  • Xu, Chang

Abstract

As global climate change becomes increasingly severe, renewable energy sources must be identified. However, renewable biomass-based fuel suffers from high combustion rates and low heating values. To further optimise the performance of biomass-based fuels. In this work, a new biomass-based solid fuel with a low combustion rate and high heating value, i.e., biocoal, was prepared via pyrolysis–impregnation–cobaking using corn stover pellets and peanut seedling pellets as the raw materials. The combustion rate of this biomass-based solid fuel was effectively reduced, as evidenced by a decrease in the maximum mass loss rate of combustion, along with a shift of the mass loss peak towards the high temperature region. The higher heating value of this biocoal from peanut seedling pellets >20 MJ kg−1 (200 and 240 °C), about 5 % higher than biochar; therefore, use of biocoal instead of biomass in direct-fired biomass power plants promises to improve power generation efficiency. On the other hand, biocoal can also increase the proportion of biomass blended in coal-biomass hybrid power plants. Finally, the baking temperature of 200 °C was determined by considering the optimal heating value, combustion rate and yield of the biocoal, which can produce biocoal while meeting yield and heating value.

Suggested Citation

  • Ge, Lichao & Zhao, Can & Wang, Ziqian & Zuo, Mingjin & Yao, Lei & Wu, Kefeng & Wang, Yang & Xu, Chang, 2025. "A new method for the preparation of biomass-based solid fuels: Pyrolysis-impregnation-cobaking," Energy, Elsevier, vol. 321(C).
    • Handle: RePEc:eee:energy:v:321:y:2025:i:c:s0360544225011648
    DOI: 10.1016/j.energy.2025.135522
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    References listed on IDEAS

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    1. Ge, Lichao & Zhao, Can & Zuo, Mingjin & Du, Yuying & Yao, Lei & Li, Dongyang & Chu, Huaqiang & Wang, Yang & Xu, Chang, 2023. "Effect of Fe on the pyrolysis products of lignin, cellulose and hemicellulose, and the formation of carbon nanotubes," Renewable Energy, Elsevier, vol. 211(C), pages 13-20.
    2. Oh, Kwang Cheol & Kim, Junghwan & Park, Sun Yong & Kim, Seok Jun & Cho, La Hoon & Lee, Chung Geon & Roh, Jiwon & Kim, Dae Hyun, 2021. "Development and validation of torrefaction optimization model applied element content prediction of biomass," Energy, Elsevier, vol. 214(C).
    3. Durango Padilla, Elias Ricardo & Hansted, Felipe Augusto Santiago & Luna, Carlos Manuel Romero & de Campos, Cristiane Inácio & Yamaji, Fabio Minoru, 2024. "Biochar derived from agricultural waste and its application as energy source in blast furnace," Renewable Energy, Elsevier, vol. 220(C).
    4. Ge, Lichao & Zhao, Can & Chen, Simo & Li, Qian & Zhou, Tianhong & Jiang, Han & Li, Xi & Wang, Yang & Xu, Chang, 2022. "An analysis of the carbonization process and volatile-release characteristics of coal-based activated carbon," Energy, Elsevier, vol. 257(C).
    5. Zhao, Can & Ge, Lichao & Li, Xi & Zuo, Mingjin & Xu, Chunyao & Chen, Simo & Li, Qian & Wang, Yang & Xu, Chang, 2023. "Effects of the carbonization temperature and intermediate cooling mode on the properties of coal-based activated carbon," Energy, Elsevier, vol. 273(C).
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