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对鲁奇炉气化产生的焦油Ｌ和传统炼焦产生的高温焦油Ｇ，用溶剂萃取方法分离 成油、沥青烯和苯不溶物三种馏分；油馏分再用柱色层方法进一步分离成脂肪族、芳 香族和极性物三种亚馏分。用毛细色谱、色－质谱详细分析脂肪族和芳香族亚馏分， 定性、定量鉴定约１５０种化合物。用红外光谱分析油和沥青烯馏分，以及芳香族和 极性物亚馏分，明确了焦油Ｌ比焦油 Ｇ具有明显的脂肪－极性特征，其化学组成非 常复杂。
The tar L produced by the gasification of Lurgi and the high-temperature tar G produced by the traditional coking are separated into three fractions of oil, asphaltene and benzene-insoluble matter by solvent extraction method; the oil fraction is further separated into the aliphatic , Aromatic and polar three sub-fractions. Approximately 150 compounds were identified qualitatively and quantitatively by capillary and mass spectrometry analysis of aliphatic and aromatic fractions. The analysis of oil and asphaltene fractions by infrared spectroscopy, as well as the aromatic and polar fraction fractions, revealed that tar L has a significantly fat-polar character than tar G and has a very complicated chemical composition.