Zeolite synthesis using an alcohol or like molecule
    1.
    发明授权
    Zeolite synthesis using an alcohol or like molecule 失效
    使用醇或类似分子的沸石合成

    公开(公告)号:US5063038A

    公开(公告)日:1991-11-05

    申请号:US91612

    申请日:1987-08-31

    摘要: There is provided a method for preparing a zeolite other than ZSM-5 from a reaction mixture comprising a mixed organic directing agent which is a combination of (a) an organic nitrogen containing compound such as an amine or a quaternary ammonium compound and (b) an alcohol and/or diol. Particular zeolites synthesized by this method include ZSM-22 and ZSM-23. The use of an alcohol or a diol may inhibit the coformation of ZSM-5. Especially when used to prepare ZSM-23, this method enables the preparation of more catalytically active ZSM-23 of reduced crystallite size and also enables the use of lower crystallization temperatures. Particular mixed organic directing agents for the preparation of ZSM-23 are combination of (a) pyrrolidine and (b) ethanol or ethylene glycol. Other factors which enhance the activity of ZSM-23 include the use of the following in the reaction mixtures for preparing ZSM-23: potassium ions; precipitated silica particles as sources of silica; and spray dried precipitated silica/alumina particles as sources of silica and alumina. The catalytic stability of alumina bound ZSM-23 catalysts is especially enhanced by steaming. Particular reactions which can be catalyzed by ZSM-23 made according to methods described herein include the dealkylation of ethylbenzene and the alkylation of benzene with ethylene.

    摘要翻译: 提供了一种从含有(a)有机氮化合物如胺或季铵化合物的组合的混合有机导向剂的反应混合物制备ZSM-5以外的沸石的方法,(b) 醇和/或二醇。 通过该方法合成的特定沸石包括ZSM-22和ZSM-23。 使用醇或二醇可能会抑制ZSM-5的共形。 特别是当用于制备ZSM-23时,该方法能够制备更小的微晶尺寸的更具催化活性的ZSM-23,并且还能够使用较低的结晶温度。 用于制备ZSM-23的特殊混合有机导向剂是(a)吡咯烷和(b)乙醇或乙二醇的组合。 提高ZSM-23活性的其他因素包括在制备ZSM-23:钾离子的反应混合物中使用以下物质: 沉淀二氧化硅颗粒作为二氧化硅来源; 和喷雾干燥的沉淀二氧化硅/氧化铝颗粒作为二氧化硅和氧化铝的来源。 氧化铝结合的ZSM-23催化剂的催化稳定性通过蒸汽特别提高。 根据本文所述方法制备的可以由ZSM-23催化的特定反应包括乙苯的脱烷基化和苯与乙烯的烷基化。

    Layered silicate
    3.
    发明授权
    Layered silicate 失效
    层状硅酸盐

    公开(公告)号:US5236681A

    公开(公告)日:1993-08-17

    申请号:US443692

    申请日:1989-11-30

    IPC分类号: C01B33/38

    CPC分类号: C01B33/38

    摘要: There is provided a method for synthesizing layered silicates such as magadiite and kenyaite. The source of silica used in this method is freshly precipitated from a silicate solution. For example, this silica source may be obtained by treating an aqueous solution of sodium silicate with sulfuric acid to form an amorphous silica precipitate. This silica precipitate is not dried to reduce its activity prior to use.

    摘要翻译: 提供了一种合成层状硅酸盐的方法,例如magadiite和kenyaite。 在这种方法中使用的二氧化硅源从硅酸盐溶液中新鲜沉淀出来。 例如,可以通过用硫酸处理硅酸钠水溶液以形成无定形二氧化硅沉淀物来获得该二氧化硅源。 该二氧化硅沉淀物在使用前不被干燥以降低其活性。

    Resid upgrading process
    8.
    发明授权
    Resid upgrading process 失效
    残库升级过程

    公开(公告)号:US4834869A

    公开(公告)日:1989-05-30

    申请号:US161693

    申请日:1988-02-29

    摘要: This invention relates to a method of preparing a metal-containing amorphous magnesia-alumina-aluminum phosphate catalyst support involving the admixture of an organic cation having a size equal to or greater than 2 Angstroms, the organic cation preferably being a tertiary or a tetraalkylammonium or phosphonium cation. The method permits recovery of a catalyst support having a controlled pore size distribution. The invention also relates to an improved catalytic support as well as an improved petroleum residua upgrading process comprising hydrotreating residua in the presence of the improved catalyst support.

    摘要翻译: 本发明涉及一种制备含金属的无定形氧化镁 - 氧化铝 - 磷酸铝催化剂载体的方法,该催化剂载体包括大小等于或大于2埃的有机阳离子的混合物,有机阳离子优选为叔烷基铵或四烷基铵或 鏻阳离子。 该方法允许回收具有可控孔径分布的催化剂载体。 本发明还涉及改进的催化剂载体以及改进的石油渣油改质方法,其包括在改进的催化剂载体存在下加氢处理残余物。

    Layered cracking catalyst and method of manufacture and use thereof
    9.
    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
    10.
    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。