期刊
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
卷 20, 期 -, 页码 357-365出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jngse.2014.07.023
关键词
Coal mine methane; Coal and gas outburst; Methane drainage; Methane utilization; Power generation
资金
- National Natural Science Foundation of China [51204173]
- China Postdoctoral Science Foundation [2014M551706]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Outbursts are sudden and violent release of coal and gas from a coal face, which can result in damage to excavations and equipment, loss of life. The Luling coal mine exploits the Nos. 8 and 9 seams, both of which are highly outburst-prone. The maximum gas pressure and gas content measured in these seams are 5.5 MPa and 25.0 m(3)/t, respectively, and several large-scale gas outburst accidents have occurred there. In this study, methane drainage and utilization at the mine is examined. Based on our analysis, several improvements, such as protective seam mining, drainage system upgrades and the use of medium-quality methane by local industry, are directed. In the coming years, the volumes of drained methane and utilization methane are projected to reach 70 and 58 million m(3) per year, respectively, thus accounting for more than 75% and 60% of the mine's methane emissions, respectively. Important lessons learned at the Luling mine could be applied to other outburst-prone coal mines in China and elsewhere. (C) 2014 Elsevier B.V. All rights reserved.
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