煤炭转化2012,Vol.35Issue(2):6-11,6.
山西寺河不同煤体结构煤萃取后的族组成特征
GROUP COMPOSITION CHARACTERISTIC OF THE DIFFERENT COAL BODY STRUCTURE COAL OF SIHE COALMINE SHANXI PROVINCE
摘要
Abstract
Exampled by anthracite coal from Sihe coalmine of Qinshui coal basin, Shanxi Province, four coal samples with different deformed extent were extracted by three solvents, including benzene, tetrahydrofuran (THF) and l-methyl-2-pyrrolidinone (NMP) under the condition of room temperature, the group composition of the extraction were separated and measured by column chromatography method and the extract yield were calculated. The study shows that with the increasing of the damage extent of coal body structure, the extraction ratio shows the increasing trend, in which the maximum extraction rate of the solvent was NMP, THF the second, and then benzene in turn. For the three solvent, the group composition of the extraction shows the same rule: as the damage extent of coal structure increasing, the relative contents of total hydrocarbon decrease, in which the content of alkane hydrocarbons decreases but the content of aromatic hydrocarbons relative increases. And the total contents of non-hydrocarbon increase, in which resin content increases but asphaltene content relatively decreases.关键词
煤体结构/溶剂萃取/萃取率/族组成Key words
coal structure/solvent extraction/extraction yield/group composition分类
化学化工引用本文复制引用
张小东,孔令菲,夏春鹏,乔伟,苗书雷..山西寺河不同煤体结构煤萃取后的族组成特征[J].煤炭转化,2012,35(2):6-11,6.基金项目
国家自然科学基金资助项目(41072113)和中国矿业大学煤炭资源与安全开采国家重点实验室开放基金资助项目(SKLCRSM10KFB01). (41072113)