Attrition resistant zeolitic layered catalyst composition and aromatics alkylation process for using the composition
    102.
    发明授权
    Attrition resistant zeolitic layered catalyst composition and aromatics alkylation process for using the composition 有权
    耐磨沸石层状催化剂组合物和芳烃烷基化方法使用该组合物

    公开(公告)号:US06376730B1

    公开(公告)日:2002-04-23

    申请号:US09603769

    申请日:2000-06-26

    IPC分类号: C07C266

    摘要: A layered catalyst composition is disclosed where the composition is prepared by bonding an outer layer comprising a bound zeolite (e.g. zeolite beta) to an inner core material (e.g. cordierite). The use of an organic bonding agent in the catalyst preparation procedure provides a composition that is sufficiently resistant to mechanical attrition to be used commercially in aromatic alkylation processes (e.g. benzene alkylation to ethylbenzene). Advantages associated with the use of layered compositions include a significant reduction in the amount of zeolite used for a given reactor loading and improved selectivity to desired alkylated aromatic products. Further benefits are realized when the layered composition is formed into shapes having a sufficiently high void volume to reduce pressure drop across the alkylation catalyst bed. This is especially relevant for operation involving high recycle rates and consequently low alkylating agent concentrations in the reaction zone. Such conditions are known to promote reduced byproduct formation.

    摘要翻译: 公开了一种分层催化剂组合物,其中通过将包含结合的沸石(例如β沸石)的外层粘合到内芯材料(例如堇青石)来制备组合物。 在催化剂制备方法中使用有机粘合剂提供了足够耐机械磨损的组合物,其可以在芳族烷基化方法(例如苯烷基化至乙苯)中商业使用。 与使用分层组合物相关的优点包括用于给定反应器负载的沸石的量的显着减少和对所需烷基化芳族产物的改进的选择性。 当层状组合物形成为具有足够高的空隙体积的形状以减少跨越烷基化催化剂床的压降时,可实现进一步的益处。 这对于涉及高回收率和因此反应区中低烷基化剂浓度的操作特别有用。 已知这种条件促进副产物形成。

    Silicon substituted EMC-2 zeolite: LZ-281
    103.
    发明授权
    Silicon substituted EMC-2 zeolite: LZ-281 失效
    硅取代的EMC-2沸石:LZ-281

    公开(公告)号:US5985782A

    公开(公告)日:1999-11-16

    申请号:US801333

    申请日:1997-02-19

    摘要: Applicants have prepared a novel zeolite identified as LZ-281. This zeolite has the framework topology of zeolite EMT. The LZ-281 zeolite is prepared by removing framework aluminum atoms from EMC-2 zeolite while simultaneously replacing the aluminum atoms with extraneous silicon atoms. This increases the SiO.sub.2 /Al.sub.2 O.sub.3 ratio versus the starting EMC-2 zeolite and results in the LZ-281 zeolite having increased thermal stability, increased number and/or strength of acid sites and increased activity in hydrocarbon processes requiring strong acid sites.

    摘要翻译: 申请人已经制备了一种鉴定为LZ-281的新型沸石。 该沸石具有沸石EMT的骨架拓扑结构。 通过从EMC-2沸石中除去骨架铝原子同时用外来硅原子代替铝原子来制备LZ-281沸石。 这相对于起始的EMC-2沸石增加了SiO 2 / Al 2 O 3比例,并且导致LZ-281沸石具有增加的热稳定性,增加的酸位数和/或强度以及在需要强酸性位点的烃法中增加的活性。

    Hydrocracking process for enhanced quality and quantity of middle
distillates
    104.
    发明授权
    Hydrocracking process for enhanced quality and quantity of middle distillates 失效
    加氢裂化过程,提高中间馏分的质量和数量

    公开(公告)号:US5565088A

    公开(公告)日:1996-10-15

    申请号:US319175

    申请日:1994-10-06

    IPC分类号: C10G65/12 C10G47/20

    CPC分类号: C10G65/12

    摘要: The invention is a hydrocracking process which produces an increased amount of hydrocarbons useable as diesel fuel by isomerization of high boiling paraffins using a dewaxing catalyst. The process is characterized by the use of a dewaxing catalyst containing a very small amount of a non-noble metal hydrogenation component such as nickel on an intermediate pore nonzeolitic molecular sieve (NZMS) material. This dewaxing catalyst has been found to be very effective in reducing the pour point of a diesel boiling range distillates even in the presence of sulfur levels which adversely affect catalysts containing higher amounts of the same metal component.

    摘要翻译: 本发明是一种加氢裂化方法,其通过使用脱蜡催化剂使高沸点烷烃异构化,产生可用作柴油燃料的增加量的烃。 该方法的特征在于在中等孔非沸石分子筛(NZMS)材料上使用含有极少量非贵金属氢化组分如镍的脱蜡催化剂。 已经发现,该脱蜡催化剂在降低柴油沸程馏出物的倾点方面是非常有效的,即使在对含有较高量相同金属组分的催化剂有不利影响的硫含量存在下也是如此。

    Hydrocracking process using a controlled porosity catalyst
    105.
    发明授权
    Hydrocracking process using a controlled porosity catalyst 失效
    加氢裂化工艺采用受控孔隙催化剂

    公开(公告)号:US5393409A

    公开(公告)日:1995-02-28

    申请号:US28062

    申请日:1993-03-08

    IPC分类号: B01J35/10 C10G47/16 C10G47/10

    摘要: A hydrocracking catalyst and a process using it are described. The catalyst comprises a dealuminated zeolite bound into a highly porous amorphous support matrix. The catalyst is characterized by its low piece density and a bimodal pore distribution, with the unfinished catalyst having a sizeable amount of macropores having diameters between 5,000 and 9,000 Angstroms. A high amount of mesopores between about 56 and about 297 Angstroms is also desired. The presence of pores between 300 to 500 Angstroms and greater than 10,000 Angstroms in diameter is minimized.

    摘要翻译: 描述加氢裂化催化剂及其使用方法。 该催化剂包含结合到高度多孔非晶支撑基质中的脱铝沸石。 催化剂的特征在于其低的片密度和双峰孔分布,未完成的催化剂具有相当大量的直径在5000和9,000埃之间的大孔。 也需要约56至约297埃之间的大量介孔。 存在直径在300至500埃和大于10,000埃之间的孔隙最小化。

    METHODS AND APPARATUSES FOR PRODUCING ETHYLBENZENE
    108.
    发明申请
    METHODS AND APPARATUSES FOR PRODUCING ETHYLBENZENE 有权
    用于生产乙苯的方法和装置

    公开(公告)号:US20120289754A1

    公开(公告)日:2012-11-15

    申请号:US13103545

    申请日:2011-05-09

    IPC分类号: C07C2/66 B01J19/00

    摘要: Embodiments of methods and apparatuses for producing ethylbenzene are provided. The method comprises the steps of introducing a first feed mixture comprising benzene and ethylene to UZM-8 zeolite-based catalyst at a first predetermined inlet temperature to form a first intermediate outlet stream comprising ethylbenzene and benzene. Ethylene is added to the first intermediate outlet stream to form a second intermediate feed mixture. The second intermediate feed mixture is introduced to beta zeolite-based catalyst at a second predetermined inlet temperature to form ethylbenzene.

    摘要翻译: 提供了生产乙苯的方法和设备的实施例。 该方法包括以第一预定入口温度将包含苯和乙烯的第一进料混合物引入到基于UZM-8沸石的催化剂中以形成包含乙苯和苯的第一中间流出物流的步骤。 将乙烯加入到第一中间流出物流中以形成第二中间进料混合物。 将第二中间进料混合物在第二预定入口温度下引入β沸石基催化剂中以形成乙苯。