Oxidative Coupling of Hydrocarbons as Heat Source
    61.
    发明申请
    Oxidative Coupling of Hydrocarbons as Heat Source 有权
    碳氢化合物作为热源的氧化偶联

    公开(公告)号:US20100249473A1

    公开(公告)日:2010-09-30

    申请号:US12416074

    申请日:2009-03-31

    Inventor: James R. Butler

    CPC classification number: C07C4/025 C07C2/82 C07C5/327 C07C11/04 C07C15/46

    Abstract: A process for the coupling of hydrocarbons and utilizing the heat energy produced by the reaction is disclosed. In one embodiment the process can include reacting methane with oxygen to form a product stream containing ethane and further processing the ethane to ethylene in an existing ethylene production facility while using the heat energy produced by the reaction within the facility.

    Abstract translation: 公开了一种用于偶联烃并利用由反应产生的热能的方法。 在一个实施方案中,该方法可以包括使甲烷与氧反应形成含有乙烷的产物流,并且在现有乙烯生产设备中进一步处理乙烯至乙烯,同时使用由设备内的反应产生的热能。

    Treatment of Alkylation Catalyst Poisons with Dehydrogenation
    65.
    发明申请
    Treatment of Alkylation Catalyst Poisons with Dehydrogenation 有权
    用脱氢处理烷基化催化剂毒物

    公开(公告)号:US20090149685A1

    公开(公告)日:2009-06-11

    申请号:US12327682

    申请日:2008-12-03

    CPC classification number: C07C5/333 C07C2529/06 C07C15/46

    Abstract: Methods and processes for reducing alkylation catalyst poisoning are described herein. Such methods generally include providing a dehydrogenation system including a dehydrogenation reactor and a separation system, wherein the separation system includes a first column and a second column, introducing an alkyl aromatic hydrocarbon into the dehydrogenation reactor, contacting the alkyl aromatic hydrocarbon with a dehydrogenation catalyst disposed within the dehydrogenation reactor to form a dehydrogenation output stream comprising a vinyl aromatic hydrocarbon, passing at least a portion of the dehydrogenation output stream to first column, recovering a first overhead fraction including benzene and a first bottoms fraction from the first column, passing at least a portion of the benzene from the first column to an alkylation system including an alkylation catalyst, passing the first bottoms fraction from the first column to the second column, recovering a second overhead fraction and a second bottoms fraction from the second column, withdrawing offtest from effluent streams selected from the dehydrogenation output stream, the first bottoms fraction, the second bottoms fraction and combinations thereof to form withdrawn offtest and introducing the withdrawn offtest into the separation system downstream from the first column.

    Abstract translation: 本文描述了用于还原烷基化催化剂中毒的方法和方法。 这样的方法通常包括提供包括脱氢反应器和分离系统的脱氢系统,其中分离系统包括第一塔和第二塔,将烷基芳烃引入脱氢反应器中,使烷基芳族烃与脱氢催化剂接触 在脱氢反应器内以形成包含乙烯基芳族烃的脱氢输出物流,将至少一部分脱氢输出流送至第一塔,从第一塔回收包括苯和第一塔底馏分的第一塔顶馏分,至少通过 从第一塔的一部分苯到包含烷基化催化剂的烷基化体系,将第一塔底馏分从第一塔通到第二塔,从第二塔回收第二塔顶馏分和第二塔底馏分, 流出物流 选自脱氢输出流,第一塔底馏分,第二塔底馏分及其组合,以形成退出,并将排出的最后馏分引入第一塔下游的分离系统。

    Toluene disproportionation catalyst
    66.
    发明申请
    Toluene disproportionation catalyst 有权
    甲苯歧化催化剂

    公开(公告)号:US20080319243A1

    公开(公告)日:2008-12-25

    申请号:US11820230

    申请日:2007-06-19

    Abstract: A process for the disproportionation of a toluene containing feedstock employing a nickel modified mordenite catalyst comprising particulate mordenite having nickel dispersed throughout the catalyst particles to provide surface nickel and interior nickel within the mordenite crystal structure. The catalyst is pretreated to selectively deactivate the surface nickel to provide a surface nickel content of reduced catalytic activity. The interior nickel thus has a higher catalytic activity than the surface nickel. The feedstock is supplied to a reaction zone containing the catalyst to cause disproportionation of toluene in the feedstock to produce a mixture of benzene and xylene. The non-aromatic content of the product is less than the non-aromatic content of a corresponding disproportionation product which would be produced by the disproportionation of the feedstream in the presence of a corresponding nickel mordenite catalyst which has not been pretreated.

    Abstract translation: 一种使用镍改性的丝光沸石催化剂歧化含甲苯原料的方法,其包含分散在整个催化剂颗粒中的镍的颗粒丝光沸石,以在丝光沸石晶体结构内提供表面镍和内部镍。 催化剂被预处理以选择性地使表面镍失活以提供具有降低的催化活性的表面镍含量。 因此,内部镍具有比表面镍更高的催化活性。 将原料供给到含有催化剂的反应区,以使原料中的甲苯发生歧化,产生苯和二甲苯的混合物。 产物的非芳香族含量低于相应的歧化产物的非芳香族含量,其将通过在未进行预处理的相应的镍丝光沸石催化剂存在下,通过进料流的歧化而产生。

    Freeze Dry Process for the Preparation of a High Surface Area and High Pore Volume Catalyst
    67.
    发明申请
    Freeze Dry Process for the Preparation of a High Surface Area and High Pore Volume Catalyst 审中-公开
    用于制备高表面积和高孔径体积催化剂的冷冻干燥方法

    公开(公告)号:US20080275286A1

    公开(公告)日:2008-11-06

    申请号:US12169014

    申请日:2008-07-08

    Abstract: The present invention provides a process for the preparation of a catalyst having a high surface area and pore volume. The process includes freeze drying an intermediary of the catalyst. The present invention further includes a catalyst prepared by a process that includes the freeze drying step. The present invention also includes a catalyst having a high acidity, as indicated by having an ammonium desorption peak at greater than about 500° C. The prevent invention further includes a method of manufacturing isomerized organic compounds using the catalyst.

    Abstract translation: 本发明提供了制备具有高表面积和孔体积的催化剂的方法。 该方法包括冷冻干燥催化剂的中间体。 本发明还包括通过包括冷冻干燥步骤的方法制备的催化剂。 本发明还包括具有高酸度的催化剂,如通过在大于约500℃具有铵解吸峰所表明的。本发明还包括使用该催化剂制备异构化有机化合物的方法。

    Critical phase alkylation process
    68.
    发明授权
    Critical phase alkylation process 失效
    临界相烷基化方法

    公开(公告)号:US07419929B2

    公开(公告)日:2008-09-02

    申请号:US11195003

    申请日:2005-08-02

    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase over a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. An aromatic feedstock having a benzene content of at least 90 wt. % is supplied into a reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 50-150 and a cerium-aluminum ratio of 0.5-1.5. Ethylene is supplied to the alkylation reaction zone in an amount to provide a benzene/ethylene mole ratio of 1-15. The reaction zone is operated at temperature and pressure conditions in which benzene is in the super critical phase to cause ethylation of the benzene in the presence of the cerium zeolite beta alkylation catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated by-products of no more than 60 wt. % of the ethylbenzene. The critical phase alkylation reaction may be followed by the transalkylation of a polyalkylated aromatic component.

    Abstract translation: 通过苯在临界相中的乙基化生成乙苯的方法,该分子筛芳族烷基化催化剂包含铈促进沸石β。 苯含量至少为90wt。%的芳族原料。 将%供给到反应区并与二氧化硅/氧化铝摩尔比在50-150范围内并且铈 - 铝比为0.5-1.5的铈促进沸石β接触。 将乙烯以提供苯/乙烯摩尔比为1-15的量供入烷基化反应区。 反应区在苯处于超临界阶段的温度和压力条件下运行,以在铈沸石β烷基化催化剂存在下引起苯的乙基化。 制备含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 临界相烷基化反应之后可以是多烷基化芳族组分的烷基转移。

    Critical phase alkylation and transalkylation process in the presence of a beta zeolite
    69.
    发明授权
    Critical phase alkylation and transalkylation process in the presence of a beta zeolite 失效
    在β沸石存在下的临界相烷基化和烷基转移方法

    公开(公告)号:US07371911B2

    公开(公告)日:2008-05-13

    申请号:US11066951

    申请日:2005-02-25

    CPC classification number: C07C2/66 C07C6/126 Y02P20/544 C07C15/073

    Abstract: A process for the production of ethylbenzene by the ethylation of benzene in the critical phase in a reaction zone containing a molecular sieve aromatic alkylation catalyst comprising cerium-promoted zeolite beta. A polyethylbenzene is supplied into the reaction zone and into contact with the cerium-promoted zeolite beta having a silica/alumina mole ratio within the range of 20-500. The reaction zone is operated at temperature and pressure conditions in which benzene is in the supercritical phase to cause ethylation of the benzene and the transalkylation of polyethylbenzene and benzene in the presence of the zeolite beta catalyst. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated byproducts of no more than 60 wt. % of the ethylbenzene. The alkylation reaction zone is operated under conditions providing a composite byproduct yield of propyl benzene and butyl benzene relative to ethylbenzene, which is no more than one half of the corresponding yield byproduct for zeolite beta promoted with lanthanum. The production of ethylbenzene in the critical phase alkylation reaction zone is attended by recycle of a polyalkylated aromatic component of the reaction product back to the reaction zone.

    Abstract translation: 在包含铈促进沸石β的分子筛芳族烷基化催化剂的反应区中通过苯在临界阶段乙苯化生产乙苯的方法。 将聚乙苯供入反应区并与二氧化硅/氧化铝摩尔比在20-500范围内的铈促进沸石β接触。 反应区在苯处于超临界阶段的温度和压力条件下进行,以在沸石β催化剂存在下引起苯的乙基化和多乙基苯和苯的烷基转移。 生产含有乙苯作为主要产物的烷基化产物,伴随产生不超过60重量%的较重烷基化副产物。 %的乙苯。 烷基化反应区在相对于乙苯提供丙基苯和丁基苯的复合副产物产率的条件下操作,其不超过用镧促进的沸石β的相应产率副产物的一半。 通过将反应产物的多烷基化芳族组分再循环回到反应区,可以在临界相烷基化反应区中生产乙苯。

    Process for the preparation of crumb rubber/asphalt blends
    70.
    发明申请
    Process for the preparation of crumb rubber/asphalt blends 审中-公开
    制备橡胶/沥青混合料的方法

    公开(公告)号:US20080015287A1

    公开(公告)日:2008-01-17

    申请号:US10966969

    申请日:2004-10-15

    Abstract: A method for preparing a homogeneous blend of asphalt and ground tire rubber. An asphalt base material is heated to a temperature sufficient to permit the stirring of the asphalt base material within a mixing vessel. A particulate crumb rubber component having a designated average particle size is added to the asphalt base material. The crumb rubber material can be partially devulcanized or partially depolymerized and may be accompanied by the incorporation of another rubber component, such as a ground styrene butadiene rubber. Zinc oxide is added to the asphalt base material. The mixture incorporating the zinc oxide is stirred for a period sufficient to provide for substantial solubilization of the crumb rubber within the asphalt base material to provide a blend which has a higher homogeneity than a corresponding blend of the same asphalt and particulate rubber components which is heated and stirred under the identical conditions, but without the addition of the zinc oxide.

    Abstract translation: 一种制备沥青和地面轮胎橡胶均匀混合物的方法。 将沥青基材料加热到足以允许在混合容器内搅拌沥青基料的温度。 将具有指定平均粒径的颗粒状碎屑橡胶组分加入到沥青基材中。 碎屑橡胶材料可以部分地脱硫或部分解聚,并且可以伴随着另外的橡胶组分如丁苯橡胶的掺入。 将氧化锌加入到沥青基材中。 将掺入氧化锌的混合物搅拌足够的时间以使碎屑橡胶在沥青基体材料中显着溶解,以提供与相同的沥青和颗粒状橡胶组分的相应混合物具有更高的均匀性的共混物,该共混物被加热 并在相同条件下搅拌,但不加入氧化锌。

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