Study on primal CO gas generation and emission of coal seam

被引：39

作者：

Zhu Hongqing ^{[1
]}

Chang Mingran ^{[1
]}

Wang Haiyan ^{[2
]}

机构：

[1] China Univ Min & Technol, Coll Resource & Safety Engn, Beijing 100083, Beijing, Peoples R China

[2] China Coal Res Inst, Beijing 100013, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY | 2017年 / 27卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Primal CO; Prediction of spontaneous combustion; Emission regularity; CO generation mechanism; Index gas; SPONTANEOUS COMBUSTION; TEMPERATURE OXIDATION; WEST-VIRGINIA; METHANE; NANOMINERALS; SORPTION; IDENTIFICATION; PARTICLES; MINERALS; ELEMENTS;

D O I：

10.1016/j.ijmst.2017.06.002

中图分类号：

TD [矿业工程];

学科分类号：

0819 ;

摘要：

\ The main method of casting coal spontaneous combustion is prediction of index gases, with carbon monoxide (CO) commonly used as an index gas. However, coal spontaneous combustion is not the sole source of CO evolution; primal CO is generated through coalification, which can lead to forecasting mistakes. Through theoretical analysis, primal CO generation and emission from coal seams was determined. In this study, six coal samples were analyzed under six different experimental conditions. The results demonstrated the change in coal seam primal gas and concentration as functions of time, different coal samples, occurrence, various gas types and composition concentration, which are in agreement with the previous study on primal CO generation. Air charging impacts on primal gas emission. Analysis of the experimental data with SPSS demonstrates that the relationship between primal CO concentration and time shows a power exponent distribution. (C) 2017 Published by Elsevier B.V. on behalf of China University of Mining & Technology.

引用

页码：973 / 979

页数：7

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