Experimental Study of the Raw Coal Desorption Method On the Corresponding Relation between Coal Seam Gas Pressure and Content
The commonly-used method of high-pressured capacity has a problem that the experimental result has certain deviation with the actual result, when it takes the dry coal sample for the adsorbed quantity of gas test. To solve this problem, the paper employs the raw coal desorption method with raw coal sample which includes the natural moisture content desorption to achieve the adsorption pressure balance. According to the experimental result analysis, under the different moisture content and in different distributed condition, the coal seam adsorbed quantity of gas increases along with the gas pressure lifting, which follows certain linear statistics rule between them, and the rate change increases along with the increases of moisture content. As a whole, the dispersing relations of the adsorbed quantity of gas and the gas pressure range of variation control in the banding regions between two straight lines. It is advantageous for calculating the gas content scope corresponding with the applied coal seam gas pressure.
coal seam moisture content raw coal desorption method gas pressure adsorbed quantity of gas
Xu Yanpeng Wang Zhaofeng Guo Huaiguang
School of Safety Science and Engineering, Henan Polytechnic University,Henan Jiaozuo 454003, China
国际会议
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)
北京
英文
1435-1440
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）