The experiment of gas adsorption and desorption under the action of high tempertature and high pressure water
Through the determination test for the quantity of gas adsorption and desorption under different temperature conditions, the law of influence of the temperature change on the adsorption and desorption of coal and methane in constant pressure condition was researched. The paradoxical law highly emphasizes that the increase of gas desorption quantity due to temperature rise and part of water adsorbing coal under the effect of high pressure water together affect the quantity of gas adsorption and desorption. In the end, we can obtain the law of desorption seepage of the coal seam gas when the coal was placed under different water contents and different temperature. Making use of the adsorption and desorption experiment system of the coal under constant pressure, the temperature control module was added to the osmoscope, thus, the desorption quantity of the coal sample in different temperature and high pressure water was measured. The result shows that, when the adsorption tank is under the same pressure, desorption quantity of the coal will increase with the temperature; if the same coal sample adsorbs twice, the adsorption quantity is bigger than the former. When it is affected by high pressure water, the adsorption rate of the coal to the gas will reduce. If the same coal sample experiences high pressure water twice, the water quantity injected in the second time is larger; and the adsorption and desorption quantity is different, the second one is a little larger than the first one. The initial temperature is also higher when it begins to desorb. When the coal is affected by high pressure water, the water adsorbed influences the gas desorption and seepage.
temperature desorption quantity seepage flow heat injection
Xie Jianlin Zhao Yangsheng Li Xiangchun Zhao Dong Li Chuantian Zhao Fei Zhang Qinqin
College of Mining Technology, Taiyuan University of Technology, Taiyuan, 030024, China College of En College of Mining Technology, Taiyuan University of Technology, Taiyuan, 030024, China Faculty of Resource and Safety Engineering, China University of Mining & Technology, Beijing 100083, College of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan, 030024, Ch
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
1477-1483
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）