Reaction pathways and cyclic chain model of free radicals during coal spontaneous combustion

•The cyclic model of free radicals R1 ~ R9 during coal self-heating was proposed.•Most reactions in free radicals are exothermic with a maximum heat release of 167.113 kJ/mol.•The initial reactions (R1 and R2) can accumulate heat and generate R-O-O and OH.•Both OH and R play vital roles in consuming...

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Veröffentlicht in:	Fuel (Guildford) 2021-06, Vol.293, p.120436, Article 120436
Hauptverfasser:	Chen, Liangzhou, Qi, Xuyao, Tang, Jie, Xin, Haihui, Liang, Zhongqiu
Format:	Artikel
Sprache:	eng
Schlagworte:	Ambient temperature Coal Coal spontaneous combustion Combustion Cyclic chain model Decomposition reactions Exothermic reactions Free radicals Heat Heat transfer Hydroxyl radicals Peroxide Quantum chemistry Quantum chemistry calculation Reaction pathways Spontaneous combustion Thermal cycling
Online-Zugang:	Volltext
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