IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v304y2024ics0360544224018498.html
   My bibliography  Save this article

Low reaction threshold of ambient temperature oxidation of coal: Perspective from oxygen concentration and airflow rate

Author

Listed:
  • Liu, Hao
  • Li, Zenghua
  • Yang, Yongliang
  • Miao, Guodong
  • Wang, Guoqin
  • Li, Purui

Abstract

Coal spontaneous combustion remains a significant hazard in mining operations. In this study, the temperature rise characteristics of sub-bituminous coal were investigated using an air stream of varying concentration and airflow rate. The chemical structure changes under various oxygen contents were analyzed using the FTIR technique. The findings demonstrate that ambient temperature oxidation can occur even under low oxygen and airflow rate conditions, emphasizing the need for vigilance. Although oxygen enrichment in the atmosphere promotes the coal-oxygen complex and increases the total temperature rise (TTR), TTR can still reach 0.31 °C with 6 vol% oxygen. There exists an optimum ventilation rate to maximize the TTR. TTR at the flow rate of 25 mL/min is 47 %, 36 %, 165 % and 308 % higher than at the 10, 50, 75 and 100 mL/min. Moreover, FTIR experiments indicated the difference of active groups under different oxygen concentrations is slight. The low reaction threshold for ambient temperature oxidation complicates the prevention of coal spontaneous combustion during latency periods.

Suggested Citation

  • Liu, Hao & Li, Zenghua & Yang, Yongliang & Miao, Guodong & Wang, Guoqin & Li, Purui, 2024. "Low reaction threshold of ambient temperature oxidation of coal: Perspective from oxygen concentration and airflow rate," Energy, Elsevier, vol. 304(C).
    • Handle: RePEc:eee:energy:v:304:y:2024:i:c:s0360544224018498
    DOI: 10.1016/j.energy.2024.132075
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544224018498
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2024.132075?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. Liu, Qiqi & Sun, Lulu & Liu, Zhenyi & Wang, Gang & Ma, Jiayu, 2023. "Effects of air volume and pre-oxidation on re-ignition characteristics of bituminous coal," Energy, Elsevier, vol. 265(C).
    2. Li, Lei & Ren, Ting & Zhong, Xiaoxing & Wang, Jiantao, 2022. "Study of ambient temperature oxidation in low metamorphic coal and the oxidation mechanism," Energy, Elsevier, vol. 252(C).
    3. Yutao, Zhang & Yuanbo, Zhang & Yaqing, Li & Xueqiang, Shi & Yujie, Zhang, 2021. "Heat effects and kinetics of coal spontaneous combustion at various oxygen contents," Energy, Elsevier, vol. 234(C).
    4. Miao, Miao & Deng, Boyu & Kong, Hao & Yang, Hairui & Lyu, Junfu & Jiang, Xiaoguo & Zhang, Man, 2021. "Effects of volatile matter and oxygen concentration on combustion characteristics of coal in an oxygen-enriched fluidized bed," Energy, Elsevier, vol. 220(C).
    5. Zhao, Jingyu & Wang, Tao & Deng, Jun & Shu, Chi-Min & Zeng, Qiang & Guo, Tao & Zhang, Yuxuan, 2020. "Microcharacteristic analysis of CH4 emissions under different conditions during coal spontaneous combustion with high-temperature oxidation and in situ FTIR," Energy, Elsevier, vol. 209(C).
    Full references (including those not matched with items on IDEAS)

    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. Liu, Hao & Li, Zenghua & Yang, Yongliang & Miao, Guodong & Han, Yaozhong, 2023. "Effects of oxidation on physical and chemical structure of a low rank sub-bituminous coal during the spontaneous combustion latency," Energy, Elsevier, vol. 272(C).
    2. 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).
    3. Liu, Qiqi & Liu, Chuang & Ma, Jiayu & Liu, Zhenyi & Sun, Lulu, 2024. "Comprehensive evaluation of low-temperature oxidation characteristics of low-rank bituminous coal and oil shale," Energy, Elsevier, vol. 294(C).
    4. Wang, Feiran & Tan, Bo & Gao, Liyang & Huang, Jiliang & Guo, Meiyan & Wang, Haiyan & Fang, Xiyang & Fu, Shuhui & Li, Tianze, 2024. "Research on the mechanism of coal adsorption of CO2 hindering oxygen," Energy, Elsevier, vol. 296(C).
    5. 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).
    6. Zhang, Xun & Zou, Jiahui & Lu, Bing & Huang, Ge & Yu, Chen & Liang, Huimin, 2023. "Experimental study on effect of mudstone on spontaneous combustion of coal," Energy, Elsevier, vol. 285(C).
    7. 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).
    8. Wang, Feiran & Tan, Bo & Zan, Xiaoyan & Huang, Jiliang & Fang, Xiyang & Fu, Shuhui & Wang, Haiyan & Li, Tianze & Qi, Qingjie, 2024. "Molecular simulation study of microstructural evolution during low-temperature oxidation of coal," Energy, Elsevier, vol. 290(C).
    9. Ni, Guanhua & Dou, Haoran & Li, Zhao & Zhu, Chuanjie & Sun, Gongshuai & Hu, Xiangming & Wang, Gang & Liu, Yixin & Wang, Zhenyang, 2022. "Study on the combustion characteristics of bituminous coal modified by typical inorganic acids," Energy, Elsevier, vol. 261(PA).
    10. Liu, Hao & Li, Zenghua & Miao, Guodong & Yang, Jingjing & Wu, Xiangqiang & Li, Jiahui, 2023. "Insight into the chemical reaction process of coal during the spontaneous combustion latency," Energy, Elsevier, vol. 263(PB).
    11. He, Qing & Cheng, Chen & Zhang, Xinsha & Guo, Qinghua & Ding, Lu & Raheem, Abdul & Yu, Guangsuo, 2022. "Insight into structural evolution and detailed non-isothermal kinetic analysis for coal pyrolysis," Energy, Elsevier, vol. 244(PB).
    12. Zhao, Jingyu & Hang, Gai & Song, Jiajia & Lu, Shiping & Ming, Hanqi & Chang, Jiaming & Deng, Jun & Zhang, Yanni & Shu, Chi-Min, 2023. "Spontaneous oxidation kinetics of weathered coal based upon thermogravimetric characteristics," Energy, Elsevier, vol. 275(C).
    13. Ma, Liyang & Zhang, Lan & Wang, Deming & Xin, Haihui & Ma, Qiulin, 2023. "Effect of oxygen-supply on the reburning reactivity of pyrolyzed residual from sub-bituminous coal: A reactive force field molecular dynamics simulation," Energy, Elsevier, vol. 283(C).
    14. Huang, Jiliang & Tan, Bo & Gao, Liyang & Fan, Long & Shao, Zhuangzhuang & Wang, Haiyan & Qi, Qingjie, 2024. "Study on the evolution characteristics of molecular surface active sites of low-rank coal in low-temperature oxidation stage," Energy, Elsevier, vol. 294(C).
    15. Xi, Xian & Jiang, Shuguang & Shi, Quanlin, 2023. "Study on the flow and bonding-reinforcement characteristics of composite foam slurry material used to block mine leakage," Energy, Elsevier, vol. 263(PD).
    16. Lei Li & Ting Ren & Xiaoxing Zhong & Jiantao Wang, 2023. "Study of the Oxidation Characteristics and CO Production Mechanism of Low-Rank Coal Goaf," Energies, MDPI, vol. 16(8), pages 1-16, April.
    17. Bin Du & Yuntao Liang & Fuchao Tian & Baolong Guo, 2023. "Analytical Prediction of Coal Spontaneous Combustion Tendency: Pore Structure and Air Permeability," Sustainability, MDPI, vol. 15(5), pages 1-19, February.
    18. Miao, Guodong & Li, Zenghua & Yang, Jingjing & Yang, Yongliang & Liu, Hao, 2023. "Microstructure evolution and higher-molecular-weight gas emission during the low temperature oxidation of coal," Energy, Elsevier, vol. 282(C).
    19. Meng Zhao & Anmin Wang & Daiyong Cao & Yingchun Wei & Liqi Ding, 2022. "Differences in Macromolecular Structure Evolution during the Pyrolysis of Vitrinite and Inertinite Based on In Situ FTIR and XRD Measurements," Energies, MDPI, vol. 15(15), pages 1-18, July.
    20. Meng, Xianliang & Sun, Jiali & Chu, Ruizhi & Fan, Lulu & Jiang, Xiaofeng & Tang, Ludeng & Zheng, Donglin, 2023. "Effect of active functional groups in coal on the release behavior of small molecule gases during low-temperature oxidation," Energy, Elsevier, vol. 273(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:304:y:2024:i:c:s0360544224018498. 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.