IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v268y2023ics0360544223000622.html
   My bibliography  Save this article

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

Author

Listed:
  • 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
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544223000622
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2023.126668?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. 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.
    2. 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).
    3. 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).
    4. 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.
    5. 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).
    6. Napolitano, Marialuisa & Romano, Rosario & Dragonetti, Raffaele, 2017. "Open-cell foams for thermoacoustic applications," Energy, Elsevier, vol. 138(C), pages 147-156.
    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).
    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. 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. 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).
    3. 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).
    4. 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).
    5. 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).

    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. Terracciano, Anthony Carmine & Vasu, Subith S. & Orlovskaya, Nina, 2016. "Design and development of a porous heterogeneous combustor for efficient heat production by combustion of liquid and gaseous fuels," Applied Energy, Elsevier, vol. 179(C), pages 228-236.
    2. Macián, V. & Serrano, J.R. & Piqueras, P. & Sanchis, E.J., 2019. "Internal pore diffusion and adsorption impact on the soot oxidation in wall-flow particulate filters," Energy, Elsevier, vol. 179(C), pages 407-421.
    3. Khanlari, Ataollah & Tuncer, Azim Doğuş & Sözen, Adnan & Aytaç, İpek & Çiftçi, Erdem & Variyenli, Halil İbrahim, 2022. "Energy and exergy analysis of a vertical solar air heater with nano-enhanced absorber coating and perforated baffles," Renewable Energy, Elsevier, vol. 187(C), pages 586-602.
    4. Shi, Jianhang & Feng, Zengchao & Zhou, Dong & Li, Xuecheng & Meng, Qiaorong, 2023. "Analysis of the permeability evolution law of in situ steam pyrolysis of bituminous coal combing with in situ CT technology," Energy, Elsevier, vol. 263(PD).
    5. Geng, Jiabo & Zeng, Gaoxiong & Liu, Cunyang & Li, Xiaoshuang & Zhang, Dongming, 2023. "Development and application of triaxial seepage test system for gas-water two-phase in coal rock," Energy, Elsevier, vol. 277(C).
    6. Hajabdollahi, Hassan, 2021. "Thermoeconomic assessment of integrated solar flat plat collector with cross flow heat exchanger as solar air heater using numerical analysis," Renewable Energy, Elsevier, vol. 168(C), pages 491-504.
    7. Kumar, Amit & Singh, Ajeet Pratap & Akshayveer, & Singh, O.P., 2022. "Performance characteristics of a new curved double-pass counter flow solar air heater," Energy, Elsevier, vol. 239(PA).
    8. Xu, Chao & Wang, Wenjing & Wang, Kai & Zhou, Aitao & Guo, Lin & Yang, Tong, 2023. "Filling–adsorption mechanism and diffusive transport characteristics of N2/CO2 in coal: Experiment and molecular simulation," Energy, Elsevier, vol. 282(C).
    9. Liu, Bo & Mohammadi, Mohammad-Reza & Ma, Zhongliang & Bai, Longhui & Wang, Liu & Xu, Yaohui & Hemmati-Sarapardeh, Abdolhossein & Ostadhassan, Mehdi, 2023. "Pore structure evolution of Qingshankou shale (kerogen type I) during artificial maturation via hydrous and anhydrous pyrolysis: Experimental study and intelligent modeling," Energy, Elsevier, vol. 282(C).
    10. Sun, Wenjibin & Zuo, Yujun & Lin, Zhang & Wu, Zhonghu & Liu, Hao & Lin, Jianyun & Chen, Bin & Chen, Qinggang & Pan, Chao & Lan, Baofeng & Liu, Song, 2023. "Impact of tectonic deformation on shale pore structure using adsorption experiments and 3D digital core observation: A case study of the Niutitang Formation in Northern Guizhou," Energy, Elsevier, vol. 278(C).
    11. Zhao, Xiaohuan & Jiang, Jiang & Zuo, Hongyan & Jia, Guohai, 2023. "Soot combustion characteristics of oxygen concentration and regeneration temperature effect on continuous pulsation regeneration in diesel particulate filter for heavy-duty truck," Energy, Elsevier, vol. 264(C).
    12. Wang, Ziwei & Qin, Yong & Shen, Jian & Li, Teng & Zhang, Xiaoyang & Cai, Ying, 2022. "A novel permeability prediction model for coal based on dynamic transformation of pores in multiple scales," Energy, Elsevier, vol. 257(C).
    13. Qiyang Gou & Shang Xu, 2023. "The Controls of Laminae on Lacustrine Shale Oil Content in China: A Review from Generation, Retention, and Storage," Energies, MDPI, vol. 16(4), pages 1-17, February.
    14. Torregrosa, Antonio José & Serrano, José Ramón & Piqueras, Pedro & García-Afonso, Óscar, 2017. "Experimental and computational approach to the transient behaviour of wall-flow diesel particulate filters," Energy, Elsevier, vol. 119(C), pages 887-900.
    15. 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).
    16. Li, Yujie & Zhai, Cheng & Sun, Yong & Xu, Jizhao & Yu, Xu & Huang, Ting, 2023. "Characterizing water vapor adsorption on coal by nuclear magnetic resonance: Influence of coal pore structure and surface properties," Energy, Elsevier, vol. 282(C).
    17. Xiaojie Fan & Yongchao Lu & Jingyu Zhang & Shiqiang Wu & Liang Zhang & Xiaojuan Du & Qinyu Cui & Hao Wang, 2022. "Lithofacies Characteristics, Depositional Environment and Sequence Stratigraphic Framework in the Saline Lacustrine Basin-A Case Study of the Eocene Low Member of Xingouzui Formation, Jianghan Basin, ," Energies, MDPI, vol. 15(17), pages 1-17, August.
    18. Jihu Lee & Sung-Hun Son & Kibum Kim, 2021. "Eco-Friendly and Economical Solar Heater Design Using Internal Structure and Phase Change Materials," Energies, MDPI, vol. 14(21), pages 1-15, November.
    19. Feng, Qianqian & Qiu, Nansheng & Borjigin, Tenger & Wu, Hang & Zhang, Jiatang & Shen, Baojian & Wang, Jiangshan, 2022. "Tectonic evolution revealed by thermo-kinematic and its effect on shale gas preservation," Energy, Elsevier, vol. 240(C).
    20. Abdul Mujeebu, Muhammad, 2016. "Hydrogen and syngas production by superadiabatic combustion – A review," Applied Energy, Elsevier, vol. 173(C), pages 210-224.

    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:268:y:2023:i:c:s0360544223000622. 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.