Methods of Isomerizing Xylenes with a Catalyst Reduced in the Presence of Hydrogen and a Base
    31.
    发明申请
    Methods of Isomerizing Xylenes with a Catalyst Reduced in the Presence of Hydrogen and a Base 有权
    在氢和碱存在下还原催化剂异构化二甲苯的方法

    公开(公告)号:US20110046428A1

    公开(公告)日:2011-02-24

    申请号:US12940291

    申请日:2010-11-05

    Abstract: A xylene isomerization process includes introducing gas comprising hydrogen and a base to a reaction zone in which a catalyst comprising a Group VIII metal and a zeolite support resides. In one embodiment, the base may be formed in situ within the reaction zone from nitrogen and hydrogen that are introduced to the reaction zone. In another embodiment, the base is introduced directly to the reaction zone. The conditions in the reaction zone are effective to reduce the catalyst. A stream comprising C8 aromatics, e.g., xylenes and ethylbenzene may then be fed to the reaction zone containing the reduced catalyst. The reaction zone may be operated at conditions effective to isomerize the xylenes and hydrodealkylate the ethylbenzene. The xylene loss during the isomerization of the xylenes is lowered as a result of using the catalyst reduced in the presence of the gas comprising a base and hydrogen.

    Abstract translation: 二甲苯异构化方法包括将包含氢和碱的气体引入到其中包含第VIII族金属和沸石载体的催化剂所在的反应区。 在一个实施方案中,碱可以在反应区内从引入到反应区的氮和氢原位形成。 在另一个实施方案中,将碱直接引入反应区。 反应区中的条件对减少催化剂是有效的。 然后可以将包含C8芳族化合物(例如二甲苯和乙苯)的料流进料至含有还原催化剂的反应区。 反应区可以在有效地异构化二甲苯和加氢脱烷基化乙苯的条件下操作。 二甲苯异构化过程中二甲苯损失降低,因为使用在包含碱和氢的气体存在下还原的催化剂。

    Selective hydrogenation catalyst and methods of making and using same

    公开(公告)号:US20080300436A1

    公开(公告)日:2008-12-04

    申请号:US12191899

    申请日:2008-08-14

    Abstract: A method for producing a selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon formed by the method comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A method of selectively hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting the highly unsaturated hydrocarbon with a selective hydrogenation catalyst composition produced by contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition.

    Process for producing a metal aluminate catalyst support
    36.
    发明授权
    Process for producing a metal aluminate catalyst support 失效
    金属铝酸盐催化剂载体的制备方法

    公开(公告)号:US06369000B1

    公开(公告)日:2002-04-09

    申请号:US09398654

    申请日:1999-09-17

    CPC classification number: B01J23/06 B01J23/02 B01J37/023 Y10S502/524

    Abstract: A process of making a metal aluminate catalyst support by incorporating, preferably impregnating, alumina, preferably gamma alumina, with a metal component to thereby provide a metal-incorporated alumina which is then calcined under a calcining condition to thereby provide a metal aluminate catalyst support. Such calcining condition includes a temperature in the range of from about 600° C. to about 1350° C. Preferably the metal component has been melted under a melting condition to thereby provide a melted metal component.

    Abstract translation: 通过将氧化铝,优选γ氧化铝与金属组分并入,优选将氧化铝浸渍,从而提供掺入金属的氧化铝,然后在煅烧条件下煅烧从而提供金属铝酸盐催化剂载体,从而制备金属铝酸盐催化剂载体的方法。 这种煅烧条件包括在约600℃至约1350℃范围内的温度。优选地,金属组分在熔融条件下熔化,从而提供熔融的金属组分。

    Selective hydrogenation catalyst and methods of making and using same
    37.
    发明授权
    Selective hydrogenation catalyst and methods of making and using same 有权
    选择性氢化催化剂及其制备和使用方法

    公开(公告)号:US08729326B2

    公开(公告)日:2014-05-20

    申请号:US12191899

    申请日:2008-08-14

    Abstract: A method for producing a selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon formed by the method comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A method of selectively hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting the highly unsaturated hydrocarbon with a selective hydrogenation catalyst composition produced by contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition.

    Abstract translation: 一种制备用于将高度不饱和烃氢化成不饱和烃的选择性氢化催化剂的方法,包括使无机催化剂载体与含氯化合物接触以形成氯化催化剂载体并向氯化催化剂载体中加入钯以形成负载钯 组成。 一种用于将高度不饱和烃氢化成不饱和烃的选择性氢化催化剂,该方法包括使无机催化剂载体与含氯化合物接触以形成氯化催化剂载体,并向氯化催化剂载体中加入钯以形成负载钯 组成。 包括将高度不饱和烃选择性氢化为不饱和烃的方法,包括使高度不饱和烃与选择性氢化催化剂组合物接触,所述选择性氢化催化剂组合物通过使无机催化剂载体与含氯化合物接触而形成氯化催化剂载体并向氯化物中加入钯 催化剂载体以形成负载钯组合物。

    Catalytic Reforming
    38.
    发明申请
    Catalytic Reforming 有权
    催化重整

    公开(公告)号:US20140066676A1

    公开(公告)日:2014-03-06

    申请号:US13601281

    申请日:2012-08-31

    Abstract: Methods and systems for improved catalytic reforming are disclosed. A method of catalytic reforming includes feeding a feedstream comprising C6-convertibles to one or more reactors; contacting the feedstream with a reforming catalyst; selecting values for a LHSV, a H2/HC ratio, and a conversion of C6-convertibles from a deactivation kinetic model so as to maximize a net present amount of benzene produced over a run-length of the reforming catalyst; operating the one or more reactors at the selected LHSV, the selected H2/HC ratio, and the selected conversion of C6-convertibles; and recovering an effluent from the reactor, wherein the effluent comprises at least about 40 wt % benzene.

    Abstract translation: 公开了用于改进催化重整的方法和系统。 一种催化重整的方法包括将包含C6-可转变物的进料流进料到一个或多个反应器; 使原料流与重整催化剂接触; 从失活动力学模型中选择LHSV值,H2 / HC比值和C6-可转化物的转化率,以便最大化在重整催化剂的游程长度上产生的苯的净存在量; 在所选择的LHSV,所选择的H 2 / HC比率和所选择的C6-可转换的转化物中操作所述一个或多个反应器; 以及从所述反应器回收流出物,其中所述流出物包含至少约40重量%的苯。

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