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Study on Co-Pyrolysis of Coal and Biomass and Process Simulation Optimization

Author

Listed:
  • Biao Wang

    (School of Chemistry and Chemical Engineering, Xinjiang University, Ürümqi 830046, China)

  • Na Liu

    (School of Chemistry and Chemical Engineering, Xinjiang University, Ürümqi 830046, China)

  • Shanshan Wang

    (Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Xiaoxian Li

    (Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

  • Rui Li

    (MOE Engineering Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University, Beijing 100083, China)

  • Yulong Wu

    (School of Chemistry and Chemical Engineering, Xinjiang University, Ürümqi 830046, China
    Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China)

Abstract

In this paper, the optimal process conditions for coal–biomass co-pyrolysis were obtained through pyrolysis experiments. The results show that under the condition of the pyrolysis temperature of 500 °C, the pyrolysis oil yield and positive synergistic effect reach the maximum, and the ratio of coal to biomass raw materials is 1:3. The effects of three loading methods (coal loading on biomass, biomass loading on coal, and coal–biomass mixing) on the distribution of simulated products of coal–biomass co-pyrolysis were constructed using Aspen Plus V11 software. The experimental results of pyrolysis carbon, pyrolysis oil, pyrolysis gas, and water under three different ratios are close to the simulation results, and the maximum error is 8%. This indicates that the model is dependent. This paper analyzes the economic situation in terms of investment in factory construction, raw material collection, product production, and product sales. The results show that when the processing scale is 9 tons h −1 , the pyrolysis plant can be profitable in the first year. This study provides basic data and the basis for the commercialization investment of coal–biomass co-pyrolysis technology.

Suggested Citation

  • Biao Wang & Na Liu & Shanshan Wang & Xiaoxian Li & Rui Li & Yulong Wu, 2023. "Study on Co-Pyrolysis of Coal and Biomass and Process Simulation Optimization," Sustainability, MDPI, vol. 15(21), pages 1-16, October.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:21:p:15412-:d:1270208
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    References listed on IDEAS

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    1. Peters, Jens F. & Banks, Scott W. & Bridgwater, Anthony V. & Dufour, Javier, 2017. "A kinetic reaction model for biomass pyrolysis processes in Aspen Plus," Applied Energy, Elsevier, vol. 188(C), pages 595-603.
    2. Wu, Zhiqiang & Zhang, Jie & Zhang, Bo & Guo, Wei & Yang, Guidong & Yang, Bolun, 2020. "Synergistic effects from co-pyrolysis of lignocellulosic biomass main component with low-rank coal: Online and offline analysis on products distribution and kinetic characteristics," Applied Energy, Elsevier, vol. 276(C).
    3. Mo, Wenyu & Xiong, Zhe & Leong, Huiyi & Gong, Xi & Jiang, Long & Xu, Jun & Su, Sheng & Hu, Song & Wang, Yi & Xiang, Jun, 2022. "Processes simulation and environmental evaluation of biofuel production via Co-pyrolysis of tropical agricultural waste," Energy, Elsevier, vol. 242(C).
    4. Rosha, Pali & Kumar, Sandeep & Ibrahim, Hussameldin, 2022. "Sensitivity analysis of biomass pyrolysis for renewable fuel production using Aspen Plus," Energy, Elsevier, vol. 247(C).
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