According to chromatographic analysis of impurity in crude benzene, several kinds of impurity were found in benzene, including thiofuran, cyclohexane, normal heptane and methyl cyclohexane.

• 通过对原料苯中杂质的色谱分析,发现原料苯含有噻吩、环己烷、正庚烷,甲基环己烷等杂质,论述了这些杂质对生产工艺条件及原料消耗的影响。