文献类型：会议论文

英文题名：Gas Adsorption and Desorption Performance of Coal with Different Degree of Metamorphism

作者：Sun, Zhongguang Wang, Fakai

第一作者：Sun, Zhongguang

机构：[1] Research Institute Smart City Technology Research Institute Co. Ltd., Chongqing University, State Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, China Coal Technology and Engineering Group Chongqing, Chongqing, China; [2] College of Mining Engineering, Guizhou Institute of Technology, Guiyang, China

第一机构：Research Institute Smart City Technology Research Institute Co. Ltd., Chongqing University, State Key Laboratory of the Gas Disaster Detecting, Preventing and Emergency Controlling, China Coal Technology and Engineering Group Chongqing, Chongqing, China

会议论文集：Proceedings of 2021 IEEE International Conference on Emergency Science and Information Technology, ICESIT 2021

会议日期：November 22, 2021 - November 24, 2021

会议地点：Chongqing, China

语种：英文

外文关键词：Coal - Coal deposits - Desorption - Equipment testing - Gases - Temperature

年份：2021

摘要：Starting from the gas pore stress of coal, the low-temperature nitrogen adsorption test is used to investigate the micropore characteristics of coal with different metamorphic degrees and its influence on gas adsorption/desorption, and to clarify the relationship between the initial rate of gas adsorption and desorption in coal and the pore stress. The experimental study was carried out by using self-built test equipment to simulate the actual formation. The results showed that: as the degree of coal metamorphism increases; the initial rate of gas adsorption and desorption is proportional to the pore stress of the coal seam, and the desorption capacity is stronger than the adsorption capacity within the same experimental period. In the same experiment time, the desorption capacity is stronger than the adsorption capacity, and the pore stress has a linear relationship with the initial rate of adsorption and desorption. ? 2021 IEEE.