Layered cracking catalyst and method of manufacture and use thereof
    31.
    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:US5179054A

    公开(公告)日:1993-01-12

    申请号:US735225

    申请日:1991-07-24

    IPC分类号: B01J33/00 C10G11/05

    摘要: A layered catalyst suited to the catalytic cracking of heavy feeds comprises a core and a shell. The shell comprises at least 5 wt % of at least 1 molecular sieve having openings of at least 8 angstroms. The core comprises at least 10 wt % of at least 1 molecular sieve having openings comprising a 12 or less-membered ring and has a reduced, if any, content of said molecular sieve having openings of at least 8 angstroms, relative to its concentration in the shell. Suitable molecular sieve materials having openings of at least 8 angstroms include MCM-41, VPI-5, MCM-9 and layered metal oxides, e.g., pillared clays. The required molecular sieve of the core can include zeolite Y, Ultrastable Y or intermediate pore size zeolites such as ZSM-5. The shell which may further contain a metals passivator 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 material. The shell may also comprise an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.

    摘要翻译: 适用于重料的催化裂化的层状催化剂包括核和壳。 该壳包含至少5重量%的具有至少8埃的开口的至少1个分子筛。 核心包含至少10重量%的具有包含12个或更少元环的开口的至少1个分子筛,并且具有至少8埃的开口的所述分子筛的含量降低(如果有的话),相对于其浓度 贝壳。 具有至少8埃开口的合适的分子筛材料包括MCM-41,VPI-5,MCM-9和层状金属氧化物,例如柱状粘土。 核心所需的分子筛可包括沸石Y,超稳定Y或中等孔径沸石如ZSM-5。 可以进一步包含金属钝化剂的壳体可以用作金属沉槽,并且可以通过磨损从单元中去除金属。 催化剂优选通过形成核心然后用壳材料涂覆或包封核心来制备。 外壳还可以包含捕获金属的无定形稀土氧化物,氧化铝和磷酸铝复合材料的可磨损涂层。

    Metal passivating agents
    32.
    发明授权
    Metal passivating agents 失效
    金属钝化剂

    公开(公告)号:US4919787A

    公开(公告)日:1990-04-24

    申请号:US335069

    申请日:1989-04-07

    IPC分类号: B01J33/00 C10G11/05

    摘要: An improved method for passivating metals in a hydrocarbon feedstock during catalytic cracking has been discovered. The method involves contacting the feedstock with a passivating agent comprising a precipitated porous rare earth oxide, alumina, and aluminum phosphate precipitate. The passivating agent may be coated on a cracking catalyst, be part of the matrix of a cracking catalyst, or be added to the cracking operation as discrete particles.

    摘要翻译: 已经发现了一种在催化裂化过程中钝化烃原料中的金属的改进方法。 该方法包括使原料与包含沉淀的多孔稀土氧化物,氧化铝和磷酸铝沉淀物的钝化剂接触。 钝化剂可以涂覆在裂化催化剂上,作为裂化催化剂的基质的一部分,或作为离散颗粒加入到裂化操作中。

    Resid catalytic cracking process utilizing ZSM-5 for increased gasoline
octane
    33.
    发明授权
    Resid catalytic cracking process utilizing ZSM-5 for increased gasoline octane 失效
    残留催化裂化工艺利用ZSM-5增加汽油辛烷值

    公开(公告)号:US4867863A

    公开(公告)日:1989-09-19

    申请号:US174987

    申请日:1988-03-29

    IPC分类号: C10G11/05

    CPC分类号: C10G11/05

    摘要: A process for catalytically cracking deep cut vacuum gas oils, resids, or other reduced crudes containing metal contaminants to increase gasoline octane. Hydrocarbon feedstocks which include vanadium and sodium contaminants are introduced into the reaction zone of a catalytic cracking unit. Catalytic cracking catalysts which include a ZSM-5 type catalytic component are contacted in the reaction zone with the metals-containing hydrocarbon feedstock. The hydrocarbon feedstock is cracked at high temperature by the cracking catalysts, resulting in increased gasoline octane, and surprising tolerance of the ZSM-5 type catalytic component to poisoning from the usually expected synergistically destructive combination of sodium and vanadium on Y-type zeolites.

    摘要翻译: 用于催化裂解深切削减压瓦斯油,残渣或其他含有金属污染物的还原原油以增加汽油辛烷的方法。 将包含钒和钠污染物的烃原料引入催化裂化装置的反应区。 包括ZSM-5型催化组分的催化裂化催化剂在反应区与含金属烃原料接触。 烃原料在高温下通过裂化催化剂裂解,导致汽油辛烷值增加,以及ZSM-5型催化组分对Y型沸石通常预期的协同破坏性组合的中和的令人惊讶的耐受性。

    Catalytic cracking using a layered cracking catalyst
    36.
    发明授权
    Catalytic cracking using a layered cracking catalyst 失效
    使用层状裂化催化剂进行催化裂化

    公开(公告)号:US5286370A

    公开(公告)日:1994-02-15

    申请号:US808487

    申请日:1991-12-17

    IPC分类号: B01J33/00 C10G11/05 B01J29/06

    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 form 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组成, 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,它可以作为金属沉头,并可以通过磨损去除单元的金属。 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。

    Isoparaffin:olefin alkylation in the presence of synthetic porous MCM-49
    37.
    发明授权
    Isoparaffin:olefin alkylation in the presence of synthetic porous MCM-49 失效
    异构烷烃:在合成多孔MCM-49存在下进行烯烃烷基化

    公开(公告)号:US5254792A

    公开(公告)日:1993-10-19

    申请号:US774482

    申请日:1991-10-10

    IPC分类号: C07C2/58 C07C2/56

    CPC分类号: C07C2/58 C07C2529/70

    摘要: The invention provides an isoparaffin: olefin alkylation process comprising contacting isoparaffin and olefin with a synthetic porous crystalline material which is characterized, in its uncalcined form, by an X-ray diffraction pattern including values substantially as set forth in Table I of the specification and having a composition comprising the molar relationshipX.sub.2 O.sub.3 :(n)YO.sub.2,wherein n is less than about 20, X is a trivalent element and Y is a tetravalent element.

    摘要翻译: 本发明提供了异链烷烃:烯烃烷基化方法,其包括使异链烷烃和烯烃与合成的多孔结晶材料接触,所述合成多孔结晶材料的特征在于其未煅烧形式,其X射线衍射图包括基本上如本说明书的表I所述的值,并且具有 包含摩尔关系X 2 O 3:(n)YO 2的组合物,其中n小于约20,X是三价元素,Y是四价元素。

    Metal passivating agents
    39.
    发明授权
    Metal passivating agents 失效
    金属钝化剂

    公开(公告)号:US5001096A

    公开(公告)日:1991-03-19

    申请号:US335068

    申请日:1989-04-07

    IPC分类号: B01J33/00 C10G11/05

    摘要: The invention describes the preparation of novel cracking catalysts by surface coating conventional cracking catalysts with passivators that act as metals traps. The coating of passivators is weakly bound to the catalyst so as to permit the coating to continuously attrit off during catalytic cracking. The continuous flaking off of the coating exposes a new surface of the coating.

    摘要翻译: 本发明描述了通过用作为金属阱的钝化剂表面涂覆常规裂化催化剂来制备新的裂化催化剂。 钝化剂的涂层与催化剂弱结合,从而允许涂层在催化裂化过程中持续磨损。 涂层的连续剥落暴露了涂层的新表面。