特高煤级煤平衡水条件下的吸附实验  

ADSORPTION EXPERIMENT OF EXTRA-HIGH RANK COAL UNDER THE CONDITION OF EQUILIBRIUM MOISTURE CONTENT

作　　者：傅雪海[1] 秦勇[1] 李贵中[1] 徐磊[1] 胡超[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《石油实验地质》2002年第2期177-180,共4页Petroleum Geology & Experiment

基　　金：国家自然科学基金(49772131).

摘　　要：鉴于国内外对镜质组最大反射率Ro(max)大于4.0%的特高煤级煤的吸附特性研究的空白,作者系统地采集了12个Ro(max)>4.0%的煤样进行了平衡水条件下的高压等温吸附实验,分析了特高煤级煤样的朗格缪尔常数与Ro(max)、显微煤岩组分、比孔容和比表面积的关系,发现了煤的朗格缪尔体积随煤级变化的拐点是在Ro(max)为4.5%左右。在上述研究的基础上,文中探讨了煤的吸附特征及机理。In view of the gaps existing in the adsorptive characteristics research of extrahigh rank coal whose vitrinite has the maximum reflectance(Ro(max))of more than 4.0%, twelve coal samples(Ro(max)>4.0%)were collected systematically and conducted a highpressure and isothermal adsorption experiment under the condition of equilibrium moisture content, and the relationships between the Longmuir constant of extrahigh rank coal samples and Ro(max), maceral, specific pore volume or specific surface area were analyzed. It was found that inflection point on the curve of Longmuir volume vs. coal rank is around Ro(max)=4.5%.On the basis of above research, the adsorptive characteristics and mechanism of coal were discussed.

关 键 词：特高煤级煤 平衡水条件 吸附实验 显微组分 等温吸附 镜质 两淮煤田 沁水煤田 

分 类 号：P618.11[天文地球—矿床学]