不同温度压力下低渗煤体瓦斯的解吸规律  

Gas Desorption Law of Low Permeability Coal at Different Temperatures and Pressures

作　　者：王圣程 李海鉴[2] WANG Sheng-cheng;LI Hai-jian(School of Civil Engineering,Xuzhou University of Technology,Xuzhou 221018,China;School of Safety Engineering,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]徐州工程学院土木工程学院,江苏徐州221018 [2]中国矿业大学安全工程学院,江苏徐州221116

出　　处：《煤炭技术》2020年第1期80-82,共3页Coal Technology

基　　金：国家自然科学基金项目(51904270);徐州工程学院科研项目(XKY2017119)

摘　　要：以平顶山低渗煤体为研究对象,研究了不同温度和瓦斯平衡压力对瓦斯的解吸速率的影响。在瓦斯解吸初期,温度和瓦斯平衡压力对解吸速率的影响程度不一,但在解吸基本平衡之后,瓦斯解吸速率随温度的增加呈正比例上升,且1.5~2.0 MPa瓦斯压力的影响程度比0.74~1.50 MPa瓦斯压力的影响程度大。Taking low permeability coal of Pingdingshan as the research object,the effects of different temperatures and pressures on gas desorption rate were study.In the early time of gas desorption,influence on the gas desorption rates of temperature and pressure is different.However,after basic balance of desorption,the increase of gas desorption rate is in direct proportion to increase of temperature,and the impact of pressure on gas desorption rate in the pressure from 1.5 to 2.0 MPa is greater than impact in pressure from 0.74 to 1.50 MPa.

关 键 词：低渗透煤体 瓦斯解吸 温度 平衡压力 

分 类 号：TD712[矿业工程—矿井通风与安全]