Comparison of the initial gas desorption and gas-release energy characteristics from tectonically-deformed and primary-undeformed coal

•Gas pressure drop rate is lower with tectonically-deformed coal.•The time to release 90% of gas expansion energy is shorter compared to gas energy.•The total gas expansion energy accounts for about 14%–16% of the total gas energy. Coal and gas outbursts (hereinafter, collectively referred to as ‘ou...

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Veröffentlicht in:	Fuel (Guildford) 2019-02, Vol.238, p.66-74
Hauptverfasser:	Wang, Chaojie, Yang, Shengqiang, Li, Xiaowei, Li, Jinhu, Jiang, Chenglin
Format:	Artikel
Sprache:	eng
Schlagworte:	Anthracite Coal Coal and gas outburst Deformation Desorption Energy Gas expansion Gas expansion energy Gas pressure Mechanical properties Outbursts Particle size Pressure Pressure transducer Risk prediction Self-assembly
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