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Effect of Pristine Palygorskite Powders on Explosion Characteristics of Methane-Air Premixed Gas

Author

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  • Yimin Zhang

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

  • Yan Wang

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

  • Ligang Zheng

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

  • Tao Yang

    (School of Safety Engineering, North China Institute of Science & Technology, Sanhe 065201, China)

  • Jianliang Gao

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

  • Zhenhua Li

    (The Collaboration Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454000, China)

Abstract

In this study, pristine palygorskite powders were used as the inhibition materials to suppress the explosion of methane-air premixed gas for the first time. The composition, porosity and pyrolysis characteristics of the powders were tested by X-ray diffraction (XRD), energy dispersive spectrometry (EDS), N 2 adsorption-desorption and Thermogravimetry-differential scanning calorimetry (TG-DSC) techniques. The effects of pristine palygorskite powders concentration on the explosion pressure and the average velocity of flame propagation of the 9.5% methane-air premixed gas were tested by a 20 L spherical explosion system and a 5 L pipeline explosion system. The results indicated the pristine palygorskite powders possess a considerable suppression property on methane explosion. When the mass concentration of pristine palygorskite powders was 0.20 g·L −1 , the max-pressure of methane explosion was decreased by 23.9%. The methane explosion flame propagation velocity was inhibited obviously. Owing to the excellent inhibitory performance and the advantage of low-cost and environmental harmlessness, pristine palygorskite powders are potential new materials for the application on gas explosion suppression.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2496-:d:171100
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    References listed on IDEAS

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    1. Rongkun Pan & Zejun Xiao & Minggao Yu, 2017. "The Characteristics of Methane Combustion Suppression by Water Mist and Its Engineering Applications," Energies, MDPI, vol. 10(10), pages 1-14, October.
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    Cited by:

    1. Junfeng Wang & Yansong Zhang & Huifeng Su & Jinshe Chen & Bo Liu & Yuyuan Zhang, 2019. "Explosion Characteristics and Flame Propagation Behavior of Mixed Dust Cloud of Coal Dust and Oil Shale Dust," Energies, MDPI, vol. 12(20), pages 1-13, October.
    2. 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.
    3. Yan Wang & Xiangqing Meng & Wentao Ji & Bei Pei & Chendi Lin & Hao Feng & Ligang Zheng, 2019. "The Inhibition Effect of Gas–Solid Two-Phase Inhibitors on Methane Explosion," Energies, MDPI, vol. 12(3), pages 1-10, January.
    4. 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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