平衡水分条件下煤对甲烷的等温吸附特性研究  

Isothermal adsorption of coals on methane under equilibrium moisture

作　　者：张群[1] 杨锡禄[1] 

机构地区：[1]煤炭科学研究总院西安分院,陕西西安710054

出　　处：《煤炭学报》1999年第6期566-570,共5页Journal of China Coal Society

摘　　要：通过对近几年来采自不同地区， 各种煤级１４０ 个煤样的平衡水分、等温吸附特性、煤岩组成和煤质的综合研究， 揭示了煤在平衡水分条件下等温吸附特性的变化规律， 探讨了其影响因素． 结果表明， 煤的等温吸附特性主要受煤级影响， 随着煤级增高， 表征煤最大吸附能力的兰米尔体积逐渐增大， 这一变化规律与以前对干煤样的研究结果明显不同； 其次， 煤中矿物含量和显微组分组成对煤的等温吸附特性也有一定影响．The comprehensive research is made on equilibrium moisture, isothermal adsorption feature, proximate analysis and coal petrology for approximate 140 coal samples with different rank and from different places. The variable pattern of isothermal adsorption feature of coals in equilibrium moisture and approached its impact factors are revealed It has been concluded that isothermal adsorption feature is mainly influenced by coal rank Along with coal rank, Langmuir volume indicating maximum adsorption capacity of coal gradually increases This pattern is very different from the previous results got from dry coal samples On the other hand, mineral and maceral contents also make certain impacts on isothermal adsorption feature

关 键 词：煤 等温吸附特性 平衡水分 煤级 矿物和显微组分 

分 类 号：P618.110.4[天文地球—矿床学]