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.%以山西沁水盆地寺河矿无烟煤为研究对象,采用溶剂萃取法,对四类不同煤体结构的煤样分别用苯、四氢呋喃(THF)和1-甲基-2-吡咯烷酮(NMP)溶剂进行萃取,结合柱层析法,对煤样萃取物进行了族组成分析.研究发现,随煤体结构破坏程度的增加,煤样的溶剂萃取率增大.其中NMP溶剂的萃取率最大,THF次之,苯溶剂萃取率最小；随着煤体结构破坏程度的增高,萃取物中的族组成呈现总烃的含量相对下降、非烃类化合物含量总体增加的变化规律.其中,饱和烃类含量减少,芳香烃含量和非烃含量相对增加,而沥青质组分的相对含量减少.
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