煤岩吸附性能影响因素评价研究  

Evaluation of Factors Influencing Adsorption Property of Coal and Rocks

作　　者：孙仁远[1] 林李[1] 王宁 张元法[1] 胡爱梅[3] 陈东[3] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东266555 [2]中石化华东分公司石油勘探开发研究院,江苏210000 [3]中联煤层气国家工程研究中心,北京100095

出　　处：《中国煤层气》2012年第2期10-12,共3页China Coalbed Methane

基　　金：国家重点基础研究发展计划(编号2009CB219606);中央高校基本科研业务费专项资金资助项目(编号09CX05003A);中国石油大学(华东)研究生创新基金资助项目(编号S10-08SZ10-12)

摘　　要：本文根据煤岩的吸附原理,设计了一套煤岩吸附性能评价装置,研究了不同气体在煤岩中的吸附性能,分析了煤质、压力、温度、颗粒粒径、含水量等因素对煤岩吸附性能的影响。研究表明,半烟煤和无烟煤的吸附特征符合Langmuir方程;煤岩吸附量随压力增大而增大,随煤化程度加深而增大,随温度升高而减少,随比表面增大而增大,随含水量的增加而减小;单组分气体吸附量的大小按CO2、CH4、N2顺序依次减少。The authors have designed a set of devices for evaluation of the properties of coal and rock based on the principles of adsorption of coal and rocks. They studied the adsorption perforro_ances of different gases in coal and rocks. The paper studies the effect of factors, like coal quality, pressure, temperature, particle size, moisture contents, etc. on adsorption of coal and rocks. The research shows that the adsorption characteristics of semi - bituminous coal and anthracite conforms with the l.angnauir equation; and that the quantity absorbed by coal and the rock increases with the increase of pressure, rank of coal, and the specific surface; and de- creases with rise of temperature and moisture content; and that the order of gas quantity absorbed by a single component gas is： CO2 〉 CH4 〉 N2.

关 键 词：煤层气 压力 吸附 温度 粒度 含水量 

分 类 号：P618.11[天文地球—矿床学]