Dehydrocyclization and reforming catalyst
    51.
    发明授权
    Dehydrocyclization and reforming catalyst 失效
    脱氢环化和重整催化剂

    公开(公告)号:US5185484A

    公开(公告)日:1993-02-09

    申请号:US457211

    申请日:1989-12-26

    IPC分类号: B01J29/12 C07C5/41

    CPC分类号: B01J29/126 C07C5/417

    摘要: A Pt/Ba/USY catalyst prepared with a high SiO.sub.2 /Al.sub.2 O.sub.3 ratio USY gives improved aromatics selectivity compared to other Pt/USY containing catalysts. The improved selectivity is a result of the method of catalyst preparation which includes incorporation of a Group IIA metal after platinum incorporation.

    摘要翻译: 与其他含有Pt / USY的催化剂相比,用高SiO 2 / Al 2 O 3比USY制备的Pt / Ba / USY催化剂提高了芳烃选择性。 改进的选择性是催化剂制备方法的结果,其包括在铂掺入后掺入IIA族金属。

    Rare earth exchanged layered silicate catalysts
    52.
    发明授权
    Rare earth exchanged layered silicate catalysts 失效
    稀土交换层状硅酸盐催化剂

    公开(公告)号:US5183559A

    公开(公告)日:1993-02-02

    申请号:US759795

    申请日:1991-09-13

    IPC分类号: B01J29/04 C10G11/00 C10G11/04

    CPC分类号: B01J29/049 C10G11/04

    摘要: There is provided a catalyst comprising a layered silicate, such as magadiite, containing interspathic polymeric silica which serves to prop open the layers. The catalyst further comprises rare earth cations which are exchanged with other cations in the silicate. It has been discovered that this rare earth cation exchange imparts enhanced hydrothermal stability to the catalyst. There is also provided a method for making this catalyst and a process for using this catalyst for cracking hydrocarbons. In the cracking process, the catalyst is regenerated.

    摘要翻译: 提供了一种催化剂,其包含层状硅酸盐,例如马来甘石,其包含用于支撑开放层的层间聚合物二氧化硅。 催化剂还包含与硅酸盐中的其它阳离子交换的稀土阳离子。 已经发现,这种稀土阳离子交换对催化剂赋予增强的水热稳定性。 还提供了制备该催化剂的方法和使用该催化剂来裂解烃的方法。 在裂化过程中,催化剂被再生。

    Layered cracking catalyst and method of manufacture and use thereof
    53.
    发明授权
    Layered cracking catalyst and method of manufacture and use thereof 失效
    层状裂化催化剂及其制造方法和用途

    公开(公告)号:US5077253A

    公开(公告)日:1991-12-31

    申请号:US516482

    申请日:1990-05-01

    IPC分类号: B01J33/00 C10G11/05

    摘要: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals from the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 层状催化剂在分子筛含量降低的壳层内含有至少一种,优选三种分子筛组分的核心。 优选的催化剂由大孔分子筛的芯,优选脱铝的Y型沸石,形状选择性石蜡裂解/异构化组分,优选HZSM-5和形状选择性脂族芳构化组分,优选镓ZSM-5, 在富含氧化铝的基体的壳内。 外壳可以从正在加工的进料中捕获金属,它可以作为金属水槽,并可以通过磨损从设备中去除金属。 催化剂优选通过形成核心然后用具有降低的分子筛含量的壳体涂覆或包封核心来制备。 壳可能含有柱状粘土或其他非常大的孔裂解组分。 壳可以是非晶态稀土氧化物,氧化铝和磷酸铝复合物的可磨损涂层,其捕获金属。

    Process for the dehydrocyclization of acyclic hydrocarbons and catalyst
composition therefor
    57.
    发明授权
    Process for the dehydrocyclization of acyclic hydrocarbons and catalyst composition therefor 失效
    无环烃的脱氢环化方法及其催化剂组合物

    公开(公告)号:US4888105A

    公开(公告)日:1989-12-19

    申请号:US156067

    申请日:1988-02-16

    IPC分类号: B01J29/64 C07C5/41 C10G35/095

    摘要: The dehydrocyclization of a feed containing one or more acyclic hydrocarbons capable of undergoing ring closure to provide aromatic hydrocarbons is accomplished by contacting the feed under dehydrocyclization conditions with a zeolite L dehydrocyclization catalyst which is substantially free of zeolite T and which contains at least one Group VIII metal component, thereby converting at least a portion of the acyclic hydrocarbon content of the feed to aromatic compound(s). Use of the foregoing zeolite L dehydrocyclization catalyst has been found to result in less non-selective hydrocracking of naphtha range materials to gaseous hydrocarbons and greater conversion of low octane paraffins to high octane aromatics than that achieved with a zeolite L synthesized by a prior procedure which results in the co-production of zeolite T contaminant.

    摘要翻译: 含有一个或多个能够进行闭环以提供芳族烃的无环烃的进料的脱氢环化通过使脱氢环化条件下的进料与基本上不含沸石T的沸石L脱氢环化催化剂接触并且其含有至少一个第VIII族 金属组分,从而将进料的至少一部分无环烃含量转化为芳族化合物。 已经发现使用上述沸石L脱氢环化催化剂导致石脑油范围材料对气态烃的非选择性加氢裂化较少,并且与通过先前方法合成的沸石L所达到的相比,低辛烷值链烷烃的转化率高于高辛烷值。 导致沸石T污染物的共同生产。