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A study of the relationships between coal heterogeneous chemical structure and pyrolysis behaviours: Mechanism and predicting model

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  • Jiang, Xu
  • Xu, Jun
  • He, Qichen
  • Wang, Cong
  • Jiang, Long
  • Xu, Kai
  • Wang, Yi
  • Su, Sheng
  • Hu, Song
  • Du, Zhenyi
  • Xiang, Jun

Abstract

Coal is naturally heterogeneous on chemical structure, which significantly affects its pyrolysis behaviours. However, due to the limit of characterization tools, quantification of the chemical structural heterogeneity and its effects on pyrolysis are still challenging. In this study, a quantification method for chemical structural heterogeneity by Raman mapping technique was firstly proposed, and the heterogeneous chemical structure of coal was investigated. The results show that the distributions of the chemical structure are highly uneven, even though the average structural characteristics are highly similar. Besides, the effects of chemical structural heterogeneity on pyrolysis behaviours were studied. It is found that except for the average structural properties, the chemical structural heterogeneity affects the pyrolysis behaviours significantly. It is attributed to the different pyrolysis mechanisms and uneven distribution of these chemical structures with different reactivity. The effects of the average chemical structures and the chemical structural heterogeneity on the pyrolysis behaviours are independent. Furthermore, new predicting models for pyrolysis behaviours by considering both the average structure and the chemical structural heterogeneity were established and validated. The final models were proved to be adequate to effectively predict the pyrolysis behaviours of raw and blended coals.

Suggested Citation

  • Jiang, Xu & Xu, Jun & He, Qichen & Wang, Cong & Jiang, Long & Xu, Kai & Wang, Yi & Su, Sheng & Hu, Song & Du, Zhenyi & Xiang, Jun, 2023. "A study of the relationships between coal heterogeneous chemical structure and pyrolysis behaviours: Mechanism and predicting model," Energy, Elsevier, vol. 282(C).
    • Handle: RePEc:eee:energy:v:282:y:2023:i:c:s0360544223021096
    DOI: 10.1016/j.energy.2023.128715
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    1. Lei, Zhao & Liang, Qijun & Ling, Qiang & Cui, Ping & Zhao, Zhigang, 2023. "Investigating the reaction mechanism of light tar for Shenfu bituminous coal pyrolysis," Energy, Elsevier, vol. 263(PB).
    2. Zhao, Lu-Tao & Liu, Zhao-Ting & Cheng, Lei, 2021. "How will China's coal industry develop in the future? A quantitative analysis with policy implications," Energy, Elsevier, vol. 235(C).
    3. Clark, Richard & Zucker, Noah & Urpelainen, Johannes, 2020. "The future of coal-fired power generation in Southeast Asia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 121(C).
    4. Ni, Zhanshi & Bi, Haobo & Jiang, Chunlong & Sun, Hao & Zhou, Wenliang & Qiu, Zhicong & He, Liqun & Lin, Qizhao, 2022. "Research on the co-pyrolysis of coal slime and lignin based on the combination of TG-FTIR, artificial neural network, and principal component analysis," Energy, Elsevier, vol. 261(PA).
    5. Xu, Jun & Liu, Jiawei & Ling, Peng & Zhang, Xin & Xu, Kai & He, Limo & Wang, Yi & Su, Sheng & Hu, Song & Xiang, Jun, 2020. "Raman spectroscopy of biochar from the pyrolysis of three typical Chinese biomasses: A novel method for rapidly evaluating the biochar property," Energy, Elsevier, vol. 202(C).
    6. Prabhakaran, SP Sathiya & Swaminathan, Ganapathiraman & Joshi, Viraj V., 2022. "Combustion and pyrolysis kinetics of Australian lignite coal and validation by artificial neural networks," Energy, Elsevier, vol. 242(C).
    7. Xu, Jun & Tang, Hao & Su, Sheng & Liu, Jiawei & Xu, Kai & Qian, Kun & Wang, Yi & Zhou, Yingbiao & Hu, Song & Zhang, Anchao & Xiang, Jun, 2018. "A study of the relationships between coal structures and combustion characteristics: The insights from micro-Raman spectroscopy based on 32 kinds of Chinese coals," Applied Energy, Elsevier, vol. 212(C), pages 46-56.
    8. Wang, Jianliang & Feng, Lianyong & Davidsson, Simon & Höök, Mikael, 2013. "Chinese coal supply and future production outlooks," Energy, Elsevier, vol. 60(C), pages 204-214.
    9. Michael Jakob & Jan Christoph Steckel & Frank Jotzo & Benjamin K. Sovacool & Laura Cornelsen & Rohit Chandra & Ottmar Edenhofer & Chris Holden & Andreas Löschel & Ted Nace & Nick Robins & Jens Suedeku, 2020. "The future of coal in a carbon-constrained climate," Nature Climate Change, Nature, vol. 10(8), pages 704-707, August.
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