平顶山十二矿变形煤瓦斯吸附-解吸特征研究  

Research on adsorption-desorption of deformed coal in No.12 mine of Pingdingshan

作　　者：杨晓娜[1] 宋志敏[1,2] 张子戌[2] 郎伟伟[2] 

机构地区：[1]河南工程学院资源与环境学院,河南郑州451191 [2]河南理工大学资源环境学院,河南焦作454000

出　　处：《河南工程学院学报（自然科学版）》2013年第1期52-57,共6页Journal of Henan University of Engineering：Natural Science Edition

基　　金：河南工程学院青年基金(Y2010009)

摘　　要：选用平顶山十二矿4种不同结构的煤样进行吸附-解吸实验,研究在不同温度和压力条件下变形煤的吸附-解吸特征.结果表明,在相同温度下,煤对瓦斯的吸附能力与煤体的破坏程度有关,破坏程度越小,吸附瓦斯的能力越强,破坏越严重,吸附瓦斯的能力越差.同一煤样在相同条件下水分对煤层瓦斯的影响要大于温度,温度低时吸附-解吸等温线趋于重合,吸附-解吸可逆,温度高时吸附-解吸等温线重合性要差,吸附-解吸不可逆,并且随着压力的增加,吸附量增大.The adsorption-desorption experiments was carried out with four different structure coal samples in No. 12 Mine of Pingdingshan, and study the adsorption-desorption character of deformed coal under the different temperature and pressure. The results indicate that the adsorption capacity of coal is related to damage of coal at the same temperature, which is the smaller, the adsorption capacity stronger, more serious, the worse. The effect of water on the adsorption capacity is greater than temperature, the same coal sam- ple under the same conditions; low temperature adsorption-desorption isotherms tend to overlap and the adsorption-desorption reversi- ble, high temperature adsorption-desorption isotherms coincidence worse and the adsorption-desorption irreversible; the adsorption capacity is as increased as pressure for the same coal sample under the same conditions.

关 键 词：变形煤 瓦斯 吸附-解吸 

分 类 号：TD712[矿业工程—矿井通风与安全]