Selective toluene disproportionation process (STDP) with ex situ
selectivated zeolite catalyst
    7.
    发明授权
    Selective toluene disproportionation process (STDP) with ex situ selectivated zeolite catalyst 失效
    选择性甲苯歧化过程(STDP)与非原位选择性沸石催化剂

    公开(公告)号:US5367099A

    公开(公告)日:1994-11-22

    申请号:US69254

    申请日:1993-05-28

    摘要: A process for shape selective hydrocarbon conversion that involves contacting a hydrocarbon feedsteam, including toluene, under conversion conditions with a catalytic molecular sieve which has been modified by being ex situ selectivated with a silicon compound. The ex situ selectivation involves exposing the molecular sieve to at least two silicon impregnation sequences, each sequence comprising an impregnation with a silicon compound followed by calcination. The modified catalyst used in the process may also be steamed. Optionally, the modified catalyst may be trim-selectivated.

    摘要翻译: 一种用于形状选择性烃转化的方法,其包括在转化条件下使包含甲苯的烃进料流与通过用硅化合物进行非原位选择性修饰的催化分子筛接触。 异位选择包括将分子筛暴露于至少两个硅浸渍序列,每个序列包含用硅化合物浸渍,随后煅烧。 在该方法中使用的改性催化剂也可以蒸。 任选地,修饰的催化剂可以是修剪选择的。