Experiment on small size coal samples methane desorption law based on Sun Chong-Xu Formula

摘要：

The calculated methane content keeps away from real loss methane content with the increasing of loss time and initial desorption velocity data. Small size coal samples methane absorption and desorption experimental study is carried out under the condition of a certain methane adsorption balance pressure and constant temperature, which the small size coal sample is collected from different coal mines. The experimental data is studied with the methane desorption law of Sun Chong-Xu formula (Q=ati). Relations among coal samples methane desorption quantity, exposure time and methane desorption velocity are studied. Then eigenvalues (i) in desorption law (Q=ati) of coal samples with different exposure time is calculated. So the same group coal samples Eigenvalues calculated with different exposure time are studied. This study provides according for small size coal samples methane loss value accurate calculation.

关键词： small size coal sample Sun Chong-Xu Formula loss methane content desorption eigenvalues methane desorption law

作者: Zhang Shu-tong

作者单位: Chongqing Research Institution of China Coal Technology & Engineering Group Corp,Chongqing, 400037, P R China National Key Laboratory of Gas Disaster Detecting, Preventing and Emergency Controlling, Chongqing, 40003 7, PR China

会议类型: 国际会议

会议名称: The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)

会议地点: 北京

会议语种:英文

页码: 246-254

在线出版日期: 2011-10-27（万方平台首次上网日期，不代表论文的发表时间）