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Structural features of Qitaihe high-temperature coal tar by sequentially fractional extraction

机译：七台河高温煤焦油的分级分馏结构特征

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摘要

A coal tar was sequentially extracted with petroleum ether, methanol, butanone, carbon disulfide, and isometric butanone/carbon disulfide mixed solvent to afford extracts 1 to 5 (E-1 to E-5) under ultrasonic irradiation in a batch extraction system, respectively. All of the extracts were analyzed with Fourier transform infrared and gas chromatography/mass spectrometer. Results showed that 18 compounds were detected in E-1, including 17 condensed arenes varying from one to five rings and 1 organooxygen compound. A series of heteroatom-containing organic species were enriched to large extents in E-2; and 16 compounds were detected in E-3, including 13 condensed arenes, 1 organosulfur compound, and 2 organonitrogen compounds. Organic species in E-4 and E-5 with molecular weight beyond the measurement range of gas chromatography/mass spectrometer were identified using Fourier transform infrared. Possible structures of some highly condensed aromatic species were inferred.
机译：依次用石油醚，甲醇，丁酮，二硫化碳和等量丁酮/二硫化碳混合溶剂萃取煤焦油，分别在分批萃取系统中超声照射下分别获得萃取物1-5（E-1至E-5）。 。用傅立叶变换红外和气相色谱/质谱仪分析所有提取物。结果表明，在E-1中检测到18种化合物，包括17个从1个到5个环的缩合芳烃和1个有机氧化合物。一系列含有杂原子的有机物在E-2中大量富集。在E-3中检测到16种化合物，包括13种缩合芳烃，1种有机硫化合物和2种有机氮化合物。使用傅立叶变换红外光谱仪鉴定E-4和E-5中分子量超出气相色谱/质谱仪测量范围的有机物。推断出某些高度缩合的芳香族物质的可能结构。

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  • 来源
    《Energy Sources》 |2018年第6期|493-500|共8页
  • 作者

    Yang H-W; Yao T.; Guo L.; Fei Y-W.; Wei X-Y;

  • 作者单位

    China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

    Air Force Logist Inst, Dept Aviat Oil & Mat, Xuzhou Wei, Peoples R China;

    Air Force Logist Inst, Dept Aviat Oil & Mat, Xuzhou Wei, Peoples R China;

    Air Force Logist Inst, Dept Aviat Oil & Mat, Xuzhou Wei, Peoples R China;

    China Univ Min & Technol, Key Lab Coal Proc & Efficient Utilizat, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Coal tar; fractional extraction; organic compounds; structural feature;

    机译：煤焦油;分馏;有机化合物;结构特征;

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