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Temperature-induced micropore structure alteration of raw coal and its implications for optimizing the degassing temperature in pore characterization

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  • Wang, Kai
  • Dong, Huzi
  • Wang, Long
  • Zhao, Wei
  • Wang, Yanhai
  • Guo, Haijun
  • Zang, Jie
  • Fan, Long
  • Zhang, Xiaolei

Abstract

A reasonable degassing temperature setting is necessary for carrying out low-temperature nitrogen adsorption (LT-N2-A) experiments, and is also a powerful safeguard for the accurate determination of pore structure. This study investigates the dynamic variation characteristics of the nanopore structure of primary porous media (low-metamorphic coal) under different degassing temperature scenarios. These observations indicate that the degassing temperature alters the attributes of low-metamorphic coal determined using low-pressure gas adsorption. The increase in the degassing temperature leads to a decrease in the maximum adsorption capacity of the coal samples, and the adsorption “hysteresis loop” becomes smaller. Micropores are the most sensitive to degassing temperature in low-metamorphic coal pore systems. The pore volume contributed by the micropores in the normal test groups BD8 and JG82 decreased gradually with an increase in degassing temperature. When the degassing temperature reached the set interval of scenario 3 (413.15–433.15 K), the micropore volume of the JG82 coal sample decreased to 3.463 × 10−5 cm3/g. The increase in degassing temperature caused irreversible damage to the micropores, however, the effect of the change in degassing temperature did not have the same effect on the changing trend of mesopores of the two coal samples. The measurement results of the BD8 cycle testing group indicate that the ultra-low temperature environment created by the LT-N2-A experiment may play a vital role in protecting the microporous skeleton structure or micro-expanding the micropores. Therefore, the most suitable degassing temperature for low-metamorphic coal before the LT-N2-A pore structure determination experiment is the temperature range in scenario 1 (333.15–353.15 K). This provides the greatest protection to the original pore structure of the low-metamorphic coal, thus ensuring a reliable estimation of the pore structure of low-metamorphic coal. These findings have implications for setting the optimal degassing temperature for porous media.

Suggested Citation

  • Wang, Kai & Dong, Huzi & Wang, Long & Zhao, Wei & Wang, Yanhai & Guo, Haijun & Zang, Jie & Fan, Long & Zhang, Xiaolei, 2023. "Temperature-induced micropore structure alteration of raw coal and its implications for optimizing the degassing temperature in pore characterization," Energy, Elsevier, vol. 268(C).
    • Handle: RePEc:eee:energy:v:268:y:2023:i:c:s0360544223000622
    DOI: 10.1016/j.energy.2023.126668
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    1. Gou, Qiyang & Xu, Shang & Hao, Fang & Yang, Feng & Shu, Zhiguo & Liu, Rui, 2021. "The effect of tectonic deformation and preservation condition on the shale pore structure using adsorption-based textural quantification and 3D image observation," Energy, Elsevier, vol. 219(C).
    2. Napolitano, Marialuisa & Romano, Rosario & Dragonetti, Raffaele, 2017. "Open-cell foams for thermoacoustic applications," Energy, Elsevier, vol. 138(C), pages 147-156.
    3. Serrano, José Ramón & Climent, Héctor & Piqueras, Pedro & Angiolini, Emanuele, 2016. "Filtration modelling in wall-flow particulate filters of low soot penetration thickness," Energy, Elsevier, vol. 112(C), pages 883-898.
    4. Wang, Xiaolei & Geng, Jiabo & Zhang, Dongming & Xiao, Weijing & Chen, Yu & Zhang, Hao, 2022. "Influence of sub-supercritical CO2 on pore structure and fractal characteristics of anthracite: An experimental study," Energy, Elsevier, vol. 261(PA).
    5. Robayo, Manuel D. & Beaman, Ben & Hughes, Billy & Delose, Brittany & Orlovskaya, Nina & Chen, Ruey-Hung, 2014. "Perovskite catalysts enhanced combustion on porous media," Energy, Elsevier, vol. 76(C), pages 477-486.
    6. Jouybari, Nima Fallah & Lundström, T. Staffan, 2020. "Performance improvement of a solar air heater by covering the absorber plate with a thin porous material," Energy, Elsevier, vol. 190(C).
    7. Tao, Meng & Jl, Xie & Xm, Li & Jw, Ma & Yang, Yue, 2020. "Experimental study on the evolutional trend of pore structures and fractal dimension of low-rank coal rich clay subjected to a coupled thermo-hydro-mechanical-chemical environment," Energy, Elsevier, vol. 203(C).
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    1. Zang, Jie & Liu, Jialong & He, Jiabei & Zhang, Xiapeng, 2023. "Characterization of the pore structure in Chinese anthracite coal using FIB-SEM tomography and deep learning-based segmentation," Energy, Elsevier, vol. 282(C).
    2. Jiang, Bingyou & Zhang, Yi & Zheng, Yuannan & Yu, Chang-Fei & Wang, Shiju & Lin, Hanyi & Lu, Kunlun & Ren, Bo & Nie, Wen & Yu, Haiming & Zhou, Yu & Wang, Ying, 2024. "Effect of acid-thermal coupling on the chemical structure and wettability of coal: An experimental study," Energy, Elsevier, vol. 294(C).
    3. Li, Jinliang & Lu, Hao & Lu, Wei & Li, Jinhu & Zhang, Qingsong & Zhuo, Hui, 2024. "Study on the kinetic characteristics and control steps of gas production in coal spontaneous combustion under the oxidation path," Energy, Elsevier, vol. 295(C).
    4. Zhang, Hewei & Shen, Jian & Wang, Geoff & Li, Kexin & Fang, Xiaojie, 2023. "Experimental study on the effect of high-temperature nitrogen immersion on the nanoscale pore structure of different lithotypes of coal," Energy, Elsevier, vol. 284(C).
    5. He, Jun & Wang, Bohao & Lu, Zhongliang, 2023. "Experimental study on the effect of magma intrusion and temperature on the pore structure of coal," Energy, Elsevier, vol. 284(C).
    6. Zhang, Hewei & Shen, Jian & Wang, Geoff & Li, Kexin & Fang, Xiaojie & Jing, Qu, 2023. "Differential heat transfer characteristics of coal macerals and their control mechanism: At the mesoscale," Energy, Elsevier, vol. 280(C).
    7. Cai, Jiawen & Yu, Zhaoyang & Yang, Shengqiang & Tang, Jingxia & Ma, Zhenqian & Xie, Xionggang & Hu, Xincheng, 2023. "Fractal characteristics of coal surface structure during low-temperature oxidation and its effect on oxidizability," Energy, Elsevier, vol. 284(C).

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