DIRECT PRODUCTION OF STYRENE
    18.
    发明专利

    公开(公告)号:JPH11193254A

    公开(公告)日:1999-07-21

    申请号:JP36689097

    申请日:1997-12-26

    摘要: PROBLEM TO BE SOLVED: To establish an efficient one-step process of direct styrene production from benzene and ethylene and/or ethane by using a zeolite catalyst ion- exchanged with a specific transition metal element. SOLUTION: The catalytic reactions between benzene and ethylene and/or ethane are carried out in the gas phase over a zeolite catalyst ion-exchanged with metal elements in groups 3-12 in the periodic table (preferably Fe, Pd and the like). In a preferred embodiment, a ZSM zeolite having the MFI structure can be selected as a zeolite catalyst. The zeolite used in the ion-exchange preferably bears an alkali metal cation as a cation because the ion-exchange rate can be increased. The water content of the benzene is calculated as a partial pressure of the starting gas.