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Experimental investigation of erosion effect on microstructure and oxidation characteristics of long-flame coal

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  • Guo, Shengli
  • Yang, Wenwang
  • Yuan, Shujie
  • Zhuo Yan,
  • Geng, Weile

Abstract

To study the effect of erosion on coal microstructure and its oxidation characteristics, eroded coals were prepared by eroding coal samples in an acidic aqueous solution for 30 days, 90 days and 180 days, respectively. The microcrystalline structure, pore structure and active groups distribution of coal samples were studied using X-ray diffractometer, low-temperature N2 adsorption and infrared spectra. Temperature-programmed experiment was used to analyze the oxidation characteristics of raw coal and eroded coals. The results reflected that the number of aromatic layers and coalification degree of eroded coal are reduced compared with raw coal. The average pore diameter increases, which promotes oxygen transportation in coal pores. Under the erosion effects, the content of active groups such as hydroxyl (–OH), methylene (–CH2), and methyl (–CH3) in coal increases. Eroded coals, especially the coal eroded for 180-day demonstrate more oxygen consumption and CO production than raw coal during the oxidation process, and their apparent activation energies decrease. Besides, the enhancement mechanism of eroded coal's oxidation activity is expounded from the aspects of the increase of active sites and the improvement of pore structure. In brief, erosion effect increases the spontaneous combustion tendency of coal.

Suggested Citation

  • Guo, Shengli & Yang, Wenwang & Yuan, Shujie & Zhuo Yan, & Geng, Weile, 2022. "Experimental investigation of erosion effect on microstructure and oxidation characteristics of long-flame coal," Energy, Elsevier, vol. 259(C).
    • Handle: RePEc:eee:energy:v:259:y:2022:i:c:s0360544222018588
    DOI: 10.1016/j.energy.2022.124959
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    1. Jiang, Yuan & Zong, Peijie & Ming, Xue & Wei, Haixin & Zhang, Xin & Bao, Yuan & Tian, Bin & Tian, Yuanyu & Qiao, Yingyun, 2021. "High-temperature fast pyrolysis of coal: An applied basic research using thermal gravimetric analyzer and the downer reactor," Energy, Elsevier, vol. 223(C).
    2. Lü, Hui-Fei & Deng, Jun & Li, Da-Jiang & Xu, Fan & Xiao, Yang & Shu, Chi-Min, 2021. "Effect of oxidation temperature and oxygen concentration on macro characteristics of pre-oxidised coal spontaneous combustion process," Energy, Elsevier, vol. 227(C).
    3. Zhao, Jingyu & Deng, Jun & Chen, Long & Wang, Tao & Song, Jiajia & Zhang, Yanni & Shu, Chi-Min & Zeng, Qiang, 2019. "Correlation analysis of the functional groups and exothermic characteristics of bituminous coal molecules during high-temperature oxidation," Energy, Elsevier, vol. 181(C), pages 136-147.
    4. Guo, Shengli & Yan, Zhuo & Yuan, Shujie & Weile Geng,, 2021. "Inhibitory effect and mechanism of l-ascorbic acid combined with tea polyphenols on coal spontaneous combustion," Energy, Elsevier, vol. 229(C).
    5. Zhai, Xiaowei & Ge, Hui & Wang, Tingyan & Shu, Chi-Min & Li, Jun, 2020. "Effect of water immersion on active functional groups and characteristic temperatures of bituminous coal," Energy, Elsevier, vol. 205(C).
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    2. Yongzan, Wen & Guanhua, Ni & Xinyue, Zhang & Yicheng, Zheng & Gang, Wang & Zhenyang, Wang & Qiming, Huang, 2023. "Fine characterization of pore structure of acidified anthracite based on liquid intrusion method and Micro-CT," Energy, Elsevier, vol. 263(PA).

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