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本文采用ＩＲ、ＮＭＲ、ＨＰＬＣ方法研究了我国峰峰矿瘦煤、焦煤、肥煤三种烟煤超临界抽出物Ｆ＿２馏分，这一馏分为抽出油已烷可溶物（ｏｉｌ）在硅胶色谱柱上用苯冲洗而得到￣［６］。由ＩＲ、ＮＭＲ、ＨＰＬＣ分析结果表明：三种烟煤Ｆ＿２馏分主要由芳烃化合物组成；以单取代苯和邻位双取代苯为主（包括缩合环体系）；芳环上取代基链不长，其中含有相当数量的申基取代的芳烃化合物，像甲苯、甲萘、二甲基萘等等。三种烟煤Ｆ＿２馏分中都含有较多的双环和三环芳烃，以三环芳烃含量最多。双环芳烃主要是萘系化合物；三环芳烃为蒽、菲类化合物；单环和三环以上芳烃含量较少。
In this paper, the F_2 fraction of three bituminous coal samples of lean coal, coking coal and fat coal in Fengfeng Mine in China was studied by IR, NMR and HPLC methods. The fraction was extracted oil on a silica gel column Rinse with benzene and get ~ [6]. The results of IR, NMR and HPLC showed that the F_2 fractions of the three bituminous bitums mainly consisted of aromatic compounds, mono-substituted benzene and ortho-disubstituted benzene (including condensed ring systems), and the substituent chain on aromatic ring was not long, in which Containing a considerable number of Shen Ji-substituted aromatic compounds, such as toluene, naphthyl, dimethylnaphthalene and so on. The three kinds of bituminous coal F_2 fractions contain more bicyclic and tricyclic aromatic hydrocarbons to the highest content of tricyclic aromatic hydrocarbons. Bicyclic aromatic hydrocarbons are mainly naphthalene compounds; tricyclic aromatic hydrocarbons anthracene, phenanthrene compounds; monocyclic and tricyclic aromatic hydrocarbons content is less.