Processes for the reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst
    1.
    发明授权
    Processes for the reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst 有权
    使用低二氧化硅与氧化铝比的催化剂还原烷基化催化剂失活的方法

    公开(公告)号:US09556083B2

    公开(公告)日:2017-01-31

    申请号:US13212234

    申请日:2011-08-18

    摘要: Alkylation systems and methods of minimizing alkylation catalyst regeneration are described herein. The alkylation systems generally include a preliminary alkylation system adapted to receive an input stream including an alkyl aromatic hydrocarbon and contact the input stream with a preliminary alkylation catalyst disposed therein to form a first output stream. The preliminary alkylation catalyst generally includes a zeolite catalyst having a SiO2/Al2O3 ratio of less than about 25. The alkylation systems further include a first alkylation system adapted to receive the first output stream and contact the first output stream with a first alkylation catalyst disposed therein and an alkylating agent to form a second output stream.

    摘要翻译: 本文描述了使烷基化催化剂再生最小化的烷基化系统和方法。 烷基化系统通常包括适于接收包含烷基芳族烃的输入流并将输入流与设置在其中的预置烷基化催化剂接触以形成第一输出流的初步烷基化系统。 初步烷基化催化剂通常包括SiO 2 / Al 2 O 3比小于约25的沸石催化剂。烷基化系统还包括适于接收第一输出流并将第一输出流与置于其中的第一烷基化催化剂接触的第一烷基化系统 和烷基化剂以形成第二输出流。

    PROCESSES FOR THE REDUCTION OF ALKYLATION CATALYST DEACTIVATION UTILIZING LOW SILICA TO ALUMINA RATIO CATALYST
    2.
    发明申请
    PROCESSES FOR THE REDUCTION OF ALKYLATION CATALYST DEACTIVATION UTILIZING LOW SILICA TO ALUMINA RATIO CATALYST 审中-公开
    降低二氧化硅对氧化铝比催化剂的烷基化催化降解活性的研究进展

    公开(公告)号:US20110301396A1

    公开(公告)日:2011-12-08

    申请号:US13212234

    申请日:2011-08-18

    IPC分类号: C07C2/54

    摘要: Alkylation systems and methods of minimizing alkylation catalyst regeneration are described herein. The alkylation systems generally include a preliminary alkylation system adapted to receive an input stream including an alkyl aromatic hydrocarbon and contact the input stream with a preliminary alkylation catalyst disposed therein to form a first output stream. The preliminary alkylation catalyst generally includes a zeolite catalyst having a SiO2/Al2O3 ratio of less than about 25. The alkylation systems further include a first alkylation system adapted to receive the first output stream and contact the first output stream with a first alkylation catalyst disposed therein and an alkylating agent to form a second output stream.

    摘要翻译: 本文描述了使烷基化催化剂再生最小化的烷基化系统和方法。 烷基化系统通常包括适于接收包含烷基芳族烃的输入流并将输入流与设置在其中的预置烷基化催化剂接触以形成第一输出流的初步烷基化系统。 初步烷基化催化剂通常包括SiO 2 / Al 2 O 3比小于约25的沸石催化剂。烷基化系统还包括适于接收第一输出流并将第一输出流与置于其中的第一烷基化催化剂接触的第一烷基化系统 和烷基化剂以形成第二输出流。

    Processes for reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst
    3.
    发明申请
    Processes for reduction of alkylation catalyst deactivation utilizing low silica to alumina ratio catalyst 审中-公开
    使用低二氧化硅与氧化铝比的催化剂还原烷基化催化剂失活的方法

    公开(公告)号:US20080058566A1

    公开(公告)日:2008-03-06

    申请号:US11515679

    申请日:2006-09-05

    IPC分类号: B01J8/04 C07C2/64

    摘要: Alkylation systems and methods of minimizing alkylation catalyst regeneration are described herein. The alkylation systems generally include a preliminary alkylation system adapted to receive an input stream including an alkyl aromatic hydrocarbon and contact the input stream with a preliminary alkylation catalyst disposed therein to form a first output stream. The preliminary alkylation catalyst generally includes a zeolite catalyst having a SiO2/Al2O3 ratio of less than about 25. The alkylation systems further include a first alkylation system adapted to receive the first output stream and contact the first output stream with a first alkylation catalyst disposed therein and an alkylating agent to form a second output stream.

    摘要翻译: 本文描述了使烷基化催化剂再生最小化的烷基化系统和方法。 烷基化系统通常包括适于接收包含烷基芳族烃的输入流并将输入流与设置在其中的预置烷基化催化剂接触以形成第一输出流的初步烷基化系统。 初步烷基化催化剂通常包括小于约25的SiO 2 / Al 2 O 3 N 3比的沸石催化剂。进一步的烷基化体系 包括第一烷基化系统,其适于接收第一输出流并且接触第一输出流与其中设置的第一烷基化催化剂和烷基化剂以形成第二输出流。

    Palladium modified metal-promoted catalyst
    4.
    发明申请
    Palladium modified metal-promoted catalyst 审中-公开
    钯改性金属促进催化剂

    公开(公告)号:US20060211902A1

    公开(公告)日:2006-09-21

    申请号:US11082445

    申请日:2005-03-16

    IPC分类号: C07C5/22 C07C5/52

    CPC分类号: C07C6/126 Y02P20/52 C07C15/02

    摘要: Processes for the conversion of an aromatic substrate over a mordenite catalyst modified by the inclusion of nickel and a second Group 10 metal selected from palladium, platinum and mixtures thereof. A feedstock containing at least one aromatic compound is brought into contact with the catalyst under conditions effective for the conversion of the aromatic compound to at least one derivative product. The resulting reaction product is then removed from the modified mordenite catalyst. The conversion reaction includes a toluene disproportionation reaction in which the feedstock contains toluene and the product recovered from the catalyst contains benzene and xylene. The conversion reaction can also involve a transalkylation reaction in which a mixture of benzene and xylene is brought into contact with the nickel and palladium-modified mordenite to produce a product which contains a monoalkyl benzene. The conversion can also involve the methylation of benzene to produce toluene or the methylation of toluene to produce xylene. The modified mordenite catalyst may contain nickel in an amount greater than the amount of platinum or palladium in the catalyst.

    摘要翻译: 通过包含镍和通过包含镍和选自钯,铂的第二组10金属及其混合物改性的丝光沸石催化剂转化芳族底物的方法。 含有至少一种芳族化合物的原料在有效将芳族化合物转化为至少一种衍生产物的条件下与催化剂接触。 然后将所得反应产物从改性的丝光沸石催化剂中除去。 转化反应包括甲苯歧化反应,其中原料含有甲苯,从催化剂回收的产物含有苯和二甲苯。 转化反应还可以涉及烷基转移反应,其中苯和二甲苯的混合物与镍和钯改性的丝光沸石接触以产生含有单烷基苯的产物。 转化还可以涉及苯的甲基化以产生甲苯或甲苯的甲基化以产生二甲苯。 修饰的丝光沸石催化剂可以含有大于催化剂中铂或钯的量的镍。

    Toluene disproportionation process utilizing mild sulfiding during startup

    公开(公告)号:US20060149106A1

    公开(公告)日:2006-07-06

    申请号:US11030707

    申请日:2005-01-06

    IPC分类号: C07C5/22

    摘要: A process for the disproportionation of toluene over a nickel-modified mordenite catalyst which has been pretreated with mild sulfiding procedure. The sulfur dose is employed in a minor amount relative to the nickel content of the catalyst. The modified mordenite catalyst is contacted with a sulfur-containing compound such as hydrogen sulfide or dimethyldisulfide (DMDS) under pretreatment conditions involving a temperature of at least 100° C. The sulfur-containing compound is employed in a relatively small amount to passivate only a minor portion of the active nickel sites. A toluene-containing feedstock is brought into contact with the pretreated catalyst under conditions effective for the disproportionation of toluene and a disproportionation product is removed from contact with the catalyst. The mordenite catalyst contains nickel in an amount within the range of 0.1-2 wt. %. The catalyst may contain another metal such as palladium or platinum, or a lanthanide series metal such as lanthanum or cerium. Pretreatment of the catalyst may be carried out by flowing a fluid pretreatment stream having a sulfur component into contact with the catalyst. The pretreatment stream comprises hydrogen sulfide or a thio compound which is converted to hydrogen sulfide under the pretreatment conditions.

    Toluene disproportionation process utilizing mild sulfiding during startup
    6.
    发明授权
    Toluene disproportionation process utilizing mild sulfiding during startup 失效
    启动时使用轻度硫化的甲苯歧化过程

    公开(公告)号:US07576249B2

    公开(公告)日:2009-08-18

    申请号:US11030707

    申请日:2005-01-06

    IPC分类号: C07C6/12

    摘要: A process for the disproportionation of toluene over a nickel-modified mordenite catalyst which has been pretreated with mild sulfiding procedure. The sulfur dose is employed in a minor amount relative to the nickel content of the catalyst. The modified mordenite catalyst is contacted with a sulfur-containing compound such as hydrogen sulfide or dimethyldisulfide (DMDS) under pretreatment conditions involving a temperature of at least 100° C. The sulfur-containing compound is employed in a relatively small amount to passivate only a minor portion of the active nickel sites. A toluene-containing feedstock is brought into contact with the pretreated catalyst under conditions effective for the disproportionation of toluene and a disproportionation product is removed from contact with the catalyst. The mordenite catalyst contains nickel in an amount within the range of 0.1-2 wt. %. The catalyst may contain another metal such as palladium or platinum, or a lanthanide series metal such as lanthanum or cerium. Pretreatment of the catalyst may be carried out by flowing a fluid pretreatment stream having a sulfur component into contact with the catalyst. The pretreatment stream comprises hydrogen sulfide or a thio compound which is converted to hydrogen sulfide under the pretreatment conditions.

    摘要翻译: 一种已经用轻度硫化方法预处理的镍改性丝光沸石催化剂歧化甲苯的方法。 硫剂量相对于催化剂的镍含量少量使用。 在包括至少100℃的温度的预处理条件下,将修饰的丝光沸石催化剂与硫化氢或二甲基二硫化物(DMDS)等含硫化​​合物接触。含硫化合物的使用量较少,仅钝化 次要部分的活性镍位点。 使含甲苯的原料在有效用于歧化甲苯的条件下与预处理的催化剂接触,并且歧化产物被除去与催化剂接触。 丝光沸石催化剂含有0.1-2重量%范围内的量的镍。 %。 催化剂可以含有另一种金属如钯或铂,或镧系金属如镧或铈。 可以通过使具有硫成分的流体预处理流与催化剂接触来进行催化剂的预处理。 预处理流包含硫化氢或在预处理条件下转化为硫化氢的硫代化合物。

    Freeze dry process for the preparation of a high surface area and high pore volume catalyst
    7.
    发明申请
    Freeze dry process for the preparation of a high surface area and high pore volume catalyst 审中-公开
    冷冻干法制备高表面积和高孔体积催化剂

    公开(公告)号:US20060183955A1

    公开(公告)日:2006-08-17

    申请号:US11397984

    申请日:2006-04-05

    申请人: Xin Xiao James Butler

    发明人: Xin Xiao James Butler

    IPC分类号: C07C5/13 B01J21/14

    摘要: 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.

    摘要翻译: 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。