Methods addressing aging in flocculated molecular sieve catalysts for hydrocarbon conversion processes
    31.
    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。

    Rejuvenating deactivated molecular sieve
    37.
    发明授权
    Rejuvenating deactivated molecular sieve 有权
    复活失活分子筛

    公开(公告)号:US07754933B2

    公开(公告)日:2010-07-13

    申请号:US11807450

    申请日:2007-05-29

    IPC分类号: C07C1/00 B01J21/20 B01J38/02

    摘要: This invention is directed to a method of rejuvenating a molecular sieve that has decreased catalytic activity as a result of contact with moisture, and a method of using the rejuvenated catalyst to make an olefin product from methanol feed. The molecular sieve can be rejuvenated by heating at a rate sufficient to increase the catalytic activity of the molecular sieve. The molecular sieve is considered to be rejuvenated when the molecular sieve has a CMCPS that is increased by at least 5% relative to that at a heat rate basis of 40° C./min over a temperature range of from 25° C. to 475° C.

    摘要翻译: 本发明涉及一种由于与水分接触而使具有降低的催化活性的分子筛再生的方法,以及使用再生催化剂从甲醇进料制备烯烃产物的方法。 分子筛可以通过以足以增加分子筛的催化活性的速度加热来回复。 当分子筛具有相对于在25℃至475℃的温度范围内以40℃/分钟的热速率升高至少5%的CMCPS时,分子筛被认为是恢复活力的 C。

    Two catalyst process for making olefin
    40.
    发明授权
    Two catalyst process for making olefin 失效
    制备烯烃的两种催化剂方法

    公开(公告)号:US07230151B2

    公开(公告)日:2007-06-12

    申请号:US10891975

    申请日:2004-07-15

    IPC分类号: C07C1/20

    摘要: This invention is to a process of making olefin, particularly ethylene and propylene, from an oxygenate feed. The invention uses two or more zeolite catalysts. Examples of zeolite catalysts include a first catalyst containing of ZSM-5, and a second catalyst containing a 10-ring molecular sieve, including but not limited to, ZSM-22, ZSM-23, ZSM35, ZSM-48, and mixtures thereof. The ZSM-5 can be unmodified, phosphorous modified, steam modified having a micropore volume reduced to not less than 50% of that of the unsteamed ZSM-5, or various mixtures thereof.

    摘要翻译: 本发明是由含氧化合物进料制备烯烃,特别是乙烯和丙烯的方法。 本发明使用两种或更多种沸石催化剂。 沸石催化剂的实例包括含有ZSM-5的第一催化剂和含有10环分子筛的第二催化剂,包括但不限于ZSM-22,ZSM-23,ZSM35,ZSM-48及其混合物。 ZSM-5可以是未改性的,磷改性的,蒸汽改性的,具有减小到不少于未蒸发的ZSM-5或其各种混合物的50%的微孔体积。