Mutual effects of pyrite and moisture on coal self-heating rates and reaction rate data for pyrite oxidation

被引：64

作者：

Arisoy, Ahmet ^{[1
]}

Beamish, Basil ^{[2
,3
]}

机构：

[1] Tech Univ Istanbul, Dept Mech Engn, Istanbul, Turkey

[2] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia

[3] B3 Min Serv Pty Ltd, Kenmore, Qld 4069, Australia

来源：

FUEL | 2015年 / 139卷

关键词：

Coal self-heating; Reactive pyrite; Adiabatic testing; Reaction kinetics; Non-Arrhenius behaviour; SPONTANEOUS COMBUSTION;

D O I：

10.1016/j.fuel.2014.08.036

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

080707 [能源环境工程]; 082001 [油气井工程];

摘要：

The accelerating effect of reactive pyrite on coal self-heating was measured experimentally using an adiabatic oven. Reaction rate data obtained from the experimental results were applied to a numerical model of coal self-heating. The model results showed reasonable agreement with the measured time taken to reach thermal runaway. However, the shape of the self-heating curves showed subtle variations. Since the pyrite oxidation reaction consumes moisture, there was a mutual effect of accelerated heating as less heat was used up in moisture evaporation. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：107 / 114

页数：8

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