Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes
    1.
    发明授权
    Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes 有权
    解决用于烃转化过程的絮凝分子筛催化剂中的老化的方法

    公开(公告)号:US07732537B2

    公开(公告)日:2010-06-08

    申请号:US12021918

    申请日:2008-01-29

    IPC分类号: C08F2/00 B01J29/06 C08F10/00

    摘要: One aspect of the invention relates to a method for formulating a molecular sieve catalyst composition, the method comprising the steps of: (a) providing a synthesized molecular sieve having been recovered in the presence of a flocculant; (b) thermally treating the synthesized molecular sieve at a temperature from about 50° C. to about 250° C. and under other conditions sufficient to form a thermally treated synthesized molecular sieve having a first LOI less than 26% and a first micropore surface area; (c) aging the thermally treated synthesized molecular sieve for at least one year; (d) analyzing the aged, thermally treated molecular sieve to determine a second micropore surface area, wherein the second micropore surface area is 3% or less lower than the first micropore surface area; and (e) combining the aged, thermally treated synthesized molecular sieve, a binder, and optionally a matrix material to produce an aged, formulated molecular sieve catalyst composition.

    摘要翻译: 本发明的一个方面涉及一种配制分子筛催化剂组合物的方法,该方法包括以下步骤:(a)提供在絮凝剂存在下回收的合成分子筛; (b)在约50℃至约250℃的温度和在足以形成具有第一LOI小于26%的热处理合成分子筛的其它条件下热处理合成的分子筛和第一微孔表面 区; (c)将经热处理的合成分子筛老化至少一年; (d)分析老化的热处理分子筛以确定第二微孔表面积,其中第二微孔表面积比第一微孔表面积低3%或更低; 和(e)将老化的热处理合成分子筛,粘合剂和任选的基质材料组合以制备老化的配制分子筛催化剂组合物。