The benzene-ethy lene alky lation reaction undei supercritical fluid(SCF)Con-dition has been investigated in many experimental aspects.

• 通过在色-质联用机上对苯-乙烯烷基化液相反应产物和超临界反应产物的分析，证实超临界反应产物带走了更多的反应过程中生成的焦前体。