Catalyst for xylene isomerization and process for preparing the same
    5.
    发明授权
    Catalyst for xylene isomerization and process for preparing the same 有权
    用于二甲苯异构化的催化剂及其制备方法

    公开(公告)号:US08030239B2

    公开(公告)日:2011-10-04

    申请号:US12312361

    申请日:2007-11-16

    IPC分类号: B01J29/06

    摘要: Disclosed herein is a catalyst for xylene isomerization, including: a carrier including a zeolite, having a molar ratio of silica to alumina of 20˜100, impregnated with or mixed with a metal salt (I) having an amount of a metal component of 0.05˜5.0 wt % relative to a zeolite, and an inorganic binder, in which an amount of the zeolite is 10˜90 wt % based on the total amount of the carrier, wherein the carrier is supported with a VIII group metal such that an amount of the VIII group metal is 0.001˜3.0 wt % based on a total amount of the catalyst, or is supported with the VII group metal additionally supported with tin, bismuth or lead such that an amount of the tin, bismuth or lead is 0.01-5.0 wt % based on the total amount of the catalyst, and a method of producing the catalyst. The catalyst for xylene isomerization is advantageous in that, when xylene or C8 aromatic compounds are isomerized using the catalyst, the ethylbenzene conversion is increased while the xylene loss is decreased, compared to conventional technologies.

    摘要翻译: 本文公开了二甲苯异构化催化剂,其包括:含有二氧化硅与氧化铝的摩尔比为20〜100的沸石的载体,其浸渍或混合金属成分为0.05的金属盐(I) 相对于沸石为约5.0重量%,以及无机粘合剂,其中所述沸石的量相对于所述载体的总量为10〜90重量%,其中所述载体以VIII族金属负载,使得量 Ⅷ族金属的含量相对于催化剂总量为0.001〜3.0重量%,或由锡,铋或铅另外负载的VII族金属负载,使得锡,铋或铅的含量为0.01〜 5.0wt%的催化剂总量,以及催化剂的制造方法。 用于二甲苯异构化的催化剂的优点在于,当使用催化剂使二甲苯或C8芳族化合物异构化时,与常规技术相比,乙苯转化率增加,而二甲苯损失降低。