Rejuvenating deactivated molecular sieve
    1.
    发明申请
    Rejuvenating deactivated molecular sieve 有权
    复活失活分子筛

    公开(公告)号:US20080015402A1

    公开(公告)日:2008-01-17

    申请号:US11807450

    申请日:2007-05-29

    IPC分类号: B01J38/02 C07C21/02

    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。 当分子筛的CMCPS相对于在25℃至475℃的温度范围内以40℃/分钟的速率升高至少5%时,分子筛被认为是复原的。 C。

    Synthesis Of Chabazite-Containing Molecular Sieves And Their Use In The Conversion Of Oxygenates To Olefins
    5.
    发明申请
    Synthesis Of Chabazite-Containing Molecular Sieves And Their Use In The Conversion Of Oxygenates To Olefins 有权
    含有含异噻唑啉的分子筛的合成及其在烯烃转化中的应用

    公开(公告)号:US20100022729A1

    公开(公告)日:2010-01-28

    申请号:US12477750

    申请日:2009-06-03

    摘要: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90%+CHA framework type character, a reaction mixture is prepared comprising first combining a reactive source of aluminum with a reactive source of phosphorus to form a primary mixture that is aged. A reactive source of silicon and a template for directing the formation of the molecular sieve can then be added to form a synthesis mixture. Crystallization is then induced in the synthesis mixture. Advantageously, (i) the source of silicon comprises an organosilicate, (ii) the source of phosphorus optionally comprises an organophosphate, and (iii) the crystallized silicoaluminophosphate molecular sieve has a crystal size distribution such that its average crystal size is not greater than 5 μm. The molecular sieve can then preferably be used in a hydrocarbon (oxygenates-to-olefins) conversion process.

    摘要翻译: 在合成具有90%+ CHA骨架类型特征的硅铝磷酸盐分子筛的方法中,制备反应混合物,其包括首先将活性的铝源与磷的反应源混合以形成老化的初级混合物。 然后可以加入硅的反应性源和用于引导分子筛形成的模板以形成合成混合物。 然后在合成混合物中诱导结晶。 有利地,(i)硅源包含有机硅酸盐,(ii)磷源任选地包含有机磷酸盐,和(iii)结晶的硅铝磷酸盐分子筛具有使其平均晶体尺寸不大于5的晶体尺寸分布 妈妈 分子筛可以优选用于烃(含氧化合物 - 烯烃)转化过程中。

    Methods Addressing Aging In Flocculated Molecular Sieve Catalysts For Hydrocarbon Conversion Processes
    6.
    发明申请
    Methods Addressing Aging In Flocculated Molecular Sieve Catalysts For Hydrocarbon Conversion Processes 有权
    用于烃转化过程的絮凝分子筛催化剂中的老化方法

    公开(公告)号:US20090192276A1

    公开(公告)日:2009-07-30

    申请号:US12021918

    申请日:2008-01-29

    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。

    Synthesis of Chabazite-Containing Molecular Sieves and Their Use in the Conversion of Oxygenates to Olefins
    7.
    发明申请
    Synthesis of Chabazite-Containing Molecular Sieves and Their Use in the Conversion of Oxygenates to Olefins 有权
    含有含异噻唑啉的分子筛的合成及其在烯烃转化中的应用

    公开(公告)号:US20120202954A1

    公开(公告)日:2012-08-09

    申请号:US13449424

    申请日:2012-04-18

    IPC分类号: C08F10/02 C08F10/06 C08F2/00

    摘要: In a method of synthesizing a silicoaluminophosphate molecular sieve having 90%+CHA framework type character, a reaction mixture is prepared comprising first combining a reactive source of aluminum with a reactive source of phosphorus to form a primary mixture that is aged. A reactive source of silicon and a template for directing the formation of the molecular sieve can then be added to form a synthesis mixture. Crystallization is then induced in the synthesis mixture. Advantageously, (i) the source of silicon comprises an organosilicate, (ii) the source of phosphorus optionally comprises an organophosphate, and (iii) the crystallized silicoaluminophosphate molecular sieve has a crystal size distribution such that its average crystal size is not greater than 5 μm. The molecular sieve can then preferably be used in a hydrocarbon (oxygenates-to-olefins) conversion process.

    摘要翻译: 在合成具有90%+ CHA骨架类型特征的硅铝磷酸盐分子筛的方法中,制备反应混合物,其包括首先将活性的铝源与磷的反应源混合以形成老化的初级混合物。 然后可以加入硅的反应性源和用于引导分子筛形成的模板以形成合成混合物。 然后在合成混合物中诱导结晶。 有利地,(i)硅源包含有机硅酸盐,(ii)磷源任选地包含有机磷酸盐,和(iii)结晶的硅铝磷酸盐分子筛具有使其平均晶体尺寸不大于5的晶体尺寸分布 μm。 分子筛可以优选用于烃(含氧化合物 - 烯烃)转化过程中。

    Controlling Prime Olefin Ratio In An Oxygenates-To-Olefins Reaction
    8.
    发明申请
    Controlling Prime Olefin Ratio In An Oxygenates-To-Olefins Reaction 审中-公开
    控制氧化烯到烯烃反应中的主要烯烃比例

    公开(公告)号:US20110054128A1

    公开(公告)日:2011-03-03

    申请号:US12837546

    申请日:2010-07-16

    IPC分类号: C08F2/00 C07C1/00

    摘要: Disclosed herein is a method of controlling production of olefins in an oxygenates-to-olefins reaction by combining in a reactor methanol and a molecular sieve, a AlPO or SAPO in certain embodiments, under conditions to produce at least ethylene and propylene having a first ethylene/propylene ratio; adding to the reactor a first amount of a C1 to C5 aldehyde; and withdrawing from the reactor a first amount of ethylene and propylene having a second ethylene/propylene ratio, wherein the second ethylene/propylene ratio is greater than the first ethylene/propylene ratio. The aldehyde is added at the same time, or co-feed, with the methanol under the same reaction conditions.

    摘要翻译: 本文公开了一种通过在反应器甲醇和分子筛,AlPO或SAPO中在某些实施方案中,在至少产生具有第一个乙烯的乙烯和丙烯的条件下混合来控制含氧化合物至烯烃反应中的烯烃的生产的方法 /丙烯比; 向反应器中加入第一量的C1至C5醛; 并从所述反应器中排出具有第二乙烯/丙烯比率的第一量乙烯和丙烯,其中所述第二乙烯/丙烯比率大于所述第一乙烯/丙烯比。 在相同的反应条件下,与甲醇同时加入醛或共同进料。