Effect of mineral matter on coal self-heating rate

被引：73

作者：

Beamish, B. Basil ^{[2
]}

Arisoy, Ahmet ^{[1
]}

机构：

[1] Tech Univ Istanbul, Fac Mech Engn, Istanbul 34437, Turkey

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

来源：

FUEL | 2008年 / 87卷 / 01期

关键词：

coal; spontaneous combustion; mineral matter; non-arrhenius kinetics;

D O I：

10.1016/j.fuel.2007.03.049

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：

0807 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

Adiabatic self-heating tests have been conducted on subbituminous coal cores from the same seam profile, which cover a mineral matter content range of 11.2-71.1%. In all cases the heat release rate does not conform to an Arrhenius kinetic model, but can best be described by a third order polynomial. Assessment of the theoretical heat sink effect of the mineral matter in each of the tests reveals that the coal is less reactive than predicted using a simple energy conservation equation. There is an additional effect of the mineral matter in these cases that cannot be explained by heat sink alone. The disseminated mineral matter in the coal is therefore inhibiting the oxidation reaction due to physicochemical effects. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：125 / 130

页数：6

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