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Suppression Effects of Hydroxy Acid Modified Montmorillonite Powders on Methane Explosions

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  • Yan Wang

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Hao Feng

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Yimin Zhang

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Chendi Lin

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Ligang Zheng

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Wentao Ji

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

  • Xuefeng Han

    (State Key Laboratory Cultivation Bases for Gas Geology and Gas Control, College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
    The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

Abstract

In this paper, montmorillonite inhibitors modified with polyhydroxy functional groups by gluconic acid (GA) were successfully prepared. The particle size distribution, composition, surface functional groups, and pyrolysis characteristics of the pure montmorillonite powders (Mt) and the gluconic acid modified powders (G-Mt) were analyzed by using a laser particle analyzer, X-ray diffraction (XRD), Fourier transform infrared (FTIR) and thermogravimetry–differential scanning calorimetry (TG-DSC), respectively. The suppression effect of Mt and G-Mt on the 9.5% methane–air premixed gas was tested in a 20 L spherical explosion device and a 5 L pipeline experimental system. The results show that G-Mt displays a much better suppression property than that of Mt. The optimal explosion suppression effect concentration of Mt or G-Mt powders is about 0.25 g·L −1 . In this concentration, for G-Mt, the maximum explosion pressure declined by 26.7%, the maximum rate of pressure rise declined by 74.63%, and the time for the flame front to reach the top of the pipe was delayed by 242.5%. On the basis of the experimental data, the better suppression effect of G-Mt than Mt might be attributed to the presence of more hydroxyl groups on the surface.

Suggested Citation

  • Yan Wang & Hao Feng & Yimin Zhang & Chendi Lin & Ligang Zheng & Wentao Ji & Xuefeng Han, 2019. "Suppression Effects of Hydroxy Acid Modified Montmorillonite Powders on Methane Explosions," Energies, MDPI, vol. 12(21), pages 1-12, October.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:21:p:4068-:d:280220
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    References listed on IDEAS

    as
    1. Yimin Zhang & Yan Wang & Ligang Zheng & Tao Yang & Jianliang Gao & Zhenhua Li, 2018. "Effect of Pristine Palygorskite Powders on Explosion Characteristics of Methane-Air Premixed Gas," Energies, MDPI, vol. 11(10), pages 1-12, September.
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    Cited by:

    1. Xiaohong Gui & Haiteng Xue & Junwei Zhu & Xingrui Zhan & Fupeng Zhao, 2022. "Study on Inhibition Characteristics of Composite Structure with High-Temperature Heat Pipe and Metal Foam on Gas Explosion," Energies, MDPI, vol. 15(3), pages 1-26, February.

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