IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v254y2022ipas0360544222011653.html
   My bibliography  Save this article

Evolution characteristics of coal microstructure and its influence on methane adsorption capacity under high temperature pyrolysis

Author

Listed:
  • Yang, Wei
  • Wang, Yihan
  • Yan, Fazhi
  • Si, Guangyao
  • Lin, Baiquan

Abstract

The ability of coal to absorb gas is one of the most important factors affecting the prevention and control of mine gas-related disasters and safe exploitation of coal seam gas. In this paper, high gas content coal samples from the Pingdingshan mining area are selected as the research object. The micro molecular structure of coal is altered by pyrolysis, combined with experimental methods such as infrared spectroscopy, isothermal adsorption and liquid nitrogen adsorption. The evolution characteristics of functional groups of coal during high temperature pyrolysis and the variation of gas adsorption capacity of coal after pyrolysis at different temperatures were studied from a micro level. The results show that when the pyrolysis temperature increased from 20 °C to 750 °C, the methane adsorption capacity of coal samples decreased with the increase of pyrolysis temperature. CC, –OH, CO, –CH2 in coal molecules gradually decreased. In terms of the effect of functional groups and the pore structure on methane adsorption, the methane adsorption capacity in descending order is: CC > –OH > CO > –CH2. The results of this study provide theoretical guidance for the development of new technologies for the development of coalbed methane thermal injection mining technology.

Suggested Citation

  • Yang, Wei & Wang, Yihan & Yan, Fazhi & Si, Guangyao & Lin, Baiquan, 2022. "Evolution characteristics of coal microstructure and its influence on methane adsorption capacity under high temperature pyrolysis," Energy, Elsevier, vol. 254(PA).
    • Handle: RePEc:eee:energy:v:254:y:2022:i:pa:s0360544222011653
    DOI: 10.1016/j.energy.2022.124262
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544222011653
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2022.124262?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Li, Jinhu & Li, Zenghua & Yang, Yongliang & Duan, Yujian & Xu, Jun & Gao, Ruiting, 2019. "Examination of CO, CO2 and active sites formation during isothermal pyrolysis of coal at low temperatures," Energy, Elsevier, vol. 185(C), pages 28-38.
    2. Li, He & Shi, Shiliang & Lin, Baiquan & Lu, Jiexin & Ye, Qing & Lu, Yi & Wang, Zheng & Hong, Yidu & Zhu, Xiangnan, 2019. "Effects of microwave-assisted pyrolysis on the microstructure of bituminous coals," Energy, Elsevier, vol. 187(C).
    3. Gan, Qingqing & Xu, Jiang & Peng, Shoujian & Yan, Fazhi & Wang, Ruifang & Cai, Guoliang, 2021. "Effect of heating on the molecular carbon structure and the evolution of mechanical properties of briquette coal," Energy, Elsevier, vol. 237(C).
    4. Duan, Wenjun & Yu, Qingbo & Xie, Huaqing & Qin, Qin, 2017. "Pyrolysis of coal by solid heat carrier-experimental study and kinetic modeling," Energy, Elsevier, vol. 135(C), pages 317-326.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Gaoming Wei & Li Ma & Hu Wen & Xin Yi & Jun Deng & Shangming Liu & Zhenbao Li & Duo Zhang, 2023. "Deformation-Failure Characteristics of Coal with Liquid CO 2 Cryogenic-Freezing Process: An Experimental and Digital Study," Energies, MDPI, vol. 16(17), pages 1-19, August.
    2. Nie, Bin & Sun, Sijia, 2023. "Thermal recovery of offshore coalbed methane reservoirs: Flow characteristics of superheated steam in wellbores," Energy, Elsevier, vol. 266(C).
    3. Dang, Zheng & Su, Linan & Wang, Xiaoming & Hou, Shihui, 2023. "Experimental study of the effect of ClO2 on coal: Implication for coalbed methane recovery with oxidant stimulation," Energy, Elsevier, vol. 271(C).
    4. Song, Haoran & Zhong, Zheng & Lin, Baiquan, 2023. "Impact of methane gas diffusion in coal on elastic modulus and porosity: Modeling and analysis," Energy, Elsevier, vol. 271(C).
    5. 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).
    6. Gao, Changjing & Liu, Dameng & Vandeginste, Veerle & Cai, Yidong & Sun, Fengrui, 2023. "Thermodynamic energy change and occurrence mechanism of multiple fluids in coal reservoirs," Energy, Elsevier, vol. 283(C).
    7. Li, Yunzhuo & Ji, Huaijun & Li, Guichuan & Hu, Shaobin & Liu, Xu, 2023. "Effect of supercritical CO2 transient high-pressure fracturing on bituminous coal microstructure," Energy, Elsevier, vol. 282(C).
    8. Wang, Hao & Wang, Liang & Zheng, Siwen & Sun, Yiwei & Shen, Shangkun & Zhang, Xiaolei, 2024. "Research on coal matrix pore structure evolution and adsorption behavior characteristics under different thermal stimulation," Energy, Elsevier, vol. 287(C).
    9. Yang, Dingding & Peng, Kai & Zheng, Yu & Chen, Yujia & Zheng, Juan & Wang, Man & Chen, Si, 2023. "Study on the characteristics of coal and gas outburst hazard under the influence of high formation temperature in deep mines," Energy, Elsevier, vol. 268(C).
    10. Wang, Yihan & Yang, Wei & Yang, Wenming & Luo, Liming & lyu, Jieyao, 2024. "Effect of AES anionic surfactant on the microstructure and wettability of coal," Energy, Elsevier, vol. 289(C).

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Gan, Qingqing & Xu, Jiang & Peng, Shoujian & Yan, Fazhi & Wang, Ruifang & Cai, Guoliang, 2021. "Effect of heating on the molecular carbon structure and the evolution of mechanical properties of briquette coal," Energy, Elsevier, vol. 237(C).
    2. Li, Min & Yang, Xueqin & Lu, Yi & Wang, Deming & Shi, Shiliang & Ye, Qing & Li, He & Wang, Zheng, 2023. "Thermodynamic variation law and influence mechanism of low-temperature oxidation of lignite samples with different moisture contents," Energy, Elsevier, vol. 262(PB).
    3. Wang, Yihan & Yang, Wei & Yang, Wenming & Luo, Liming & lyu, Jieyao, 2024. "Effect of AES anionic surfactant on the microstructure and wettability of coal," Energy, Elsevier, vol. 289(C).
    4. Zhang, Xun & Liang, Huimin & Lu, Bing & Qiao, Ling & Huang, Ge & Yu, Chen & Zou, Jiahui, 2024. "Correlation and stage change of key groups and thermal effects of spontaneous coal combustion due to long-term ultraviolet illumination," Energy, Elsevier, vol. 293(C).
    5. Xin, Lin & An, Mingyu & Feng, Mingze & Li, Kaixuan & Cheng, Weimin & Liu, Weitao & Hu, Xiangming & Wang, Zhigang & Han, Limin, 2021. "Study on pyrolysis characteristics of lump coal in the context of underground coal gasification," Energy, Elsevier, vol. 237(C).
    6. Yuxuan Zhou & Shugang Li & Yang Bai & Hang Long & Yuchu Cai & Jingfei Zhang, 2023. "Joint Characterization and Fractal Laws of Pore Structure in Low-Rank Coal," Sustainability, MDPI, vol. 15(12), pages 1-19, June.
    7. Liu, Wei & Chu, Xiangyu & Xu, Hao & Chen, Wei & Ma, Liwei & Qin, Yueping & Wei, Jun, 2022. "Oxidation reaction constants for coal spontaneous combustion under inert gas environments: An experimental investigation," Energy, Elsevier, vol. 247(C).
    8. Zhang, Chao & Zhao, Yangsheng & Feng, Zijun & Meng, Qiaorong & Wang, Lei & Lu, Yang, 2023. "Thermal maturity and chemical structure evolution of lump long-flame coal during superheated water vapor–based in situ pyrolysis," Energy, Elsevier, vol. 263(PC).
    9. Huang, Jiliang & Tan, Bo & Gao, Liyang & Shao, Zhuangzhuang & Wang, Haiyan & Chen, Zhen, 2023. "A multi-channel reaction model study of key primary and secondary active groups in the low-temperature oxidation process of coal," Energy, Elsevier, vol. 283(C).
    10. Liu, Hao & Li, Zenghua & Yang, Yongliang & Miao, Guodong, 2023. "Study on the thermal behavior of coal during the spontaneous combustion latency," Energy, Elsevier, vol. 281(C).
    11. Tao, Ming & Yang, Zheng & Zhao, Yan & Wu, Xingyu & Wu, Chengqing, 2024. "Failure characteristics of microwave heat-treated stressed sandstone: Implications for deep rock breakage using TBM cutting," Energy, Elsevier, vol. 292(C).
    12. Zhao, Jingyu & Deng, Jun & Wang, Tao & Song, Jiajia & Zhang, Yanni & Shu, Chi-Min & Zeng, Qiang, 2019. "Assessing the effectiveness of a high-temperature-programmed experimental system for simulating the spontaneous combustion properties of bituminous coal through thermokinetic analysis of four oxidatio," Energy, Elsevier, vol. 169(C), pages 587-596.
    13. Haijun Guo & Zhixiang Cheng & Kai Wang & Baolin Qu & Liang Yuan & Chao Xu, 2020. "Coal permeability evolution characteristics: Analysis under different loading conditions," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(2), pages 347-363, April.
    14. Ma, Junfang & Liu, Jiaxun & Jiang, Xiumin & Zhang, Hai, 2021. "A two-dimensional distributed activation energy model for pyrolysis of solid fuels," Energy, Elsevier, vol. 230(C).
    15. Moon, Hyeong-Bin & Lee, Ji-Hwan & Kim, Hyung-Tae & Lee, Jin-Wook & Lee, Byoung-Hwa & Jeon, Chung-Hwan, 2024. "Effect of high-pressure pyrolysis on syngas and char structure of petroleum coke," Energy, Elsevier, vol. 299(C).
    16. Wang, Kai & Hu, Lihong & Deng, Jun & Zhang, Yanni, 2023. "Multiscale thermal behavioral characterization of spontaneous combustion of pre-oxidized coal with different air exposure time," Energy, Elsevier, vol. 262(PA).
    17. Zhang, Chao & Zhao, Yangsheng & Feng, Zijun & Wang, Lei & Meng, Qiaorong & Lu, Yang & Gao, Qiang, 2023. "Comparative study on the chemical structure characteristics of lump coal during superheated water vapor pyrolysis and conventional pyrolysis," Energy, Elsevier, vol. 276(C).
    18. Zhao, Xingguo & Dai, Guanglong & Qin, Ruxiang & Zhou, Liang & Li, Jinhu & Li, Jinliang, 2024. "Spontaneous combustion characteristics of coal based on the oxygen consumption rate integral," Energy, Elsevier, vol. 288(C).
    19. Lei Li & Ting Ren & Xiaoxing Zhong & Jiantao Wang, 2022. "Study of the Abnormal CO-Exceedance Phenomenon in the Tailgate Corner of a Low Metamorphic Coal Seam," Energies, MDPI, vol. 15(15), pages 1-16, July.
    20. Gu, Suqian & Xu, Zhiqiang & Ren, Yangguang & Tu, Yanan & Sun, Meijie & Liu, Xiangyang, 2021. "An approach for upgrading lignite to improve slurryability: Blending with direct coal liquefaction residue under microwave-assisted pyrolysis," Energy, Elsevier, vol. 222(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:energy:v:254:y:2022:i:pa:s0360544222011653. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.