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    Aromatic Alkylation with Phosphorus-modified Zeolite catalyst
    4.
    发明申请
    Aromatic Alkylation with Phosphorus-modified Zeolite catalyst 有权
    用磷改性沸石催化剂进行芳香族烷基化

    公开(公告)号：US20080306317A1

    公开(公告)日：2008-12-11

    申请号：US12142147

    申请日：2008-06-19

    申请人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey

    发明人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey

    IPC分类号： C07C2/00

    CPC分类号： B01J29/40 ,  B01J2229/12 ,  B01J2229/37 ,  C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： A catalyst is formed from a phosphorus-containing ZSM-5-type zeolite. The ZSM-5-type zeolite has a silica/alumina molar ratio of at least 200. The phosphorus-containing ZSM-5-type zeolite also has a phosphorus content of at least 8% by weight of zeolite and has multiple phosphorus species exhibited by at least two 31P MAS NMR peaks with maxima at from about 0 to about −50 ppm. The catalyst may be used in aromatic alkylation by contacting the catalyst with a feed of an aromatic hydrocarbon and an alkylating agent under reaction conditions suitable for aromatic alkylation.

    摘要翻译： 由含磷ZSM-5型沸石形成催化剂。 ZSM-5型沸石的二氧化硅/氧化铝摩尔比至少为200.含磷ZSM-5型沸石的磷含量至少为沸石重量的8％，具有多种磷类， 至少两个具有约0至约-50ppm的最大值的31P MAS NMR峰。 催化剂可以通过在适于芳族烷基化的反应条件下使催化剂与芳族烃和烷基化剂的进料接触而用于芳族烷基化。

    Method of preparing an alkyl aromatic product
    5.
    发明授权
    Method of preparing an alkyl aromatic product 有权
    制备烷基芳香族产物的方法

    公开(公告)号：US07196237B2

    公开(公告)日：2007-03-27

    申请号：US11134567

    申请日：2005-05-20

    申请人： Ashim Kumar Ghosh ,  Pamela Harvey

    发明人： Ashim Kumar Ghosh ,  Pamela Harvey

    IPC分类号： C07C2/66 ,  C07C2/70

    CPC分类号： B01J29/40 ,  B01J35/002 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/28 ,  B01J2229/12 ,  B01J2229/37 ,  C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： A method of modifying a zeolite catalyst to increase selectivity of the catalyst is achieved by dissolving alumina in a phosphorus-containing acid solution, and treating the zeolite catalyst with the dissolved alumina solution. A method of preparing an aromatic product, such as a xylene product, is also achieved by contacting the modified zeolite catalyst with an aromatic hydrocarbon, such as toluene, and an alkylating agent, such as methanol, under reaction conditions suitable for aromatic alkylation. For xylene products the aromatic hydrocarbon may be toluene and the reaction conditions may be suitable for at least one of toluene methylation and transalkylation.

    摘要翻译： 通过将氧化铝溶解在含磷酸溶液中并用溶解氧化铝溶液处理沸石催化剂，可以实现改性沸石催化剂以提高催化剂选择性的方法。 通过在适于芳族烷基化的反应条件下使改性沸石催化剂与芳族烃如甲苯和烷基化剂如甲醇接触来制备芳族产物如二甲苯产物的方法。 对于二甲苯产物，芳族烃可以是甲苯，反应条件可适用于甲苯甲基化和烷基转移中的至少一种。

    Aromatic alkylation process
    6.
    发明申请
    Aromatic alkylation process 审中-公开
    芳香烷基化工艺

    公开(公告)号：US20110137099A1

    公开(公告)日：2011-06-09

    申请号：US12653043

    申请日：2009-12-08

    申请人： Ashim Kumar Ghosh ,  Pamela Harvey ,  Neeta Kulkarni

    发明人： Ashim Kumar Ghosh ,  Pamela Harvey ,  Neeta Kulkarni

    IPC分类号： C07C2/66

    CPC分类号： C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： In a process for the alkylation of aromatic compounds an aromatic compound; an alkylating agent; hydrogen, an inert gas or a mixture there; and steam is contacted with a shape-selective zeolite catalyst in a reactor. Hydrogen, an inert gas or a mixture thereof is introduced into the reactor which is at a temperature of about 200° C., the alkylating agent is introduced into the reactor which is at a temperature of about 480° C. and the aromatic compound may be introduced into the reactor which is at a temperature of about 200° C. or about 480° C. and steam may be introduced into the reactor which is at a temperature of about 200° C. or about 480° C. This process is applicable for toluene methylation with a shape-selective catalyst of an aluminosilicate zeolite, such as ZSM-5 which has been modified with phosphorus, to produce para-xylene (p-xylene).

    摘要翻译： 在芳族化合物的烷基化方法中，芳族化合物; 烷基化剂; 氢气，惰性气体或其中的混合物; 并在反应器中使蒸汽与形状选择性沸石催化剂接触。 将氢气，惰性气体或其混合物引入到约200℃的反应器中，将烷基化剂引入反应器中，该反应器的温度为约480℃，芳族化合物可以 被引入到反应器中，该反应器的温度为约200℃或约480℃，并且可将蒸汽引入反应器中，该反应器的温度为约200℃或约480℃。该方法为 适用于用磷硅烷改性的ZSM-5等铝硅酸盐沸石形状选择性催化剂进行甲苯甲基化，生成对二甲苯（对二甲苯）。

    Method of hydrothermal treatment of phosphorus-modified zeolite catalyts
    8.
    发明授权
    Method of hydrothermal treatment of phosphorus-modified zeolite catalyts 有权
    磷改性沸石催化剂的水热处理方法

    公开(公告)号：US07576026B2

    公开(公告)日：2009-08-18

    申请号：US11857728

    申请日：2007-09-19

    申请人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey ,  Roncalli J. Twomey

    发明人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey ,  Roncalli J. Twomey

    IPC分类号： B01J29/06 ,  B01J29/40

    CPC分类号： C07C2/66 ,  B01J29/40 ,  B01J2229/18 ,  B01J2229/36 ,  Y02P20/52 ,  C07C15/08

    摘要： A method of treating a ZSM-5-type zeolite catalyst is carried out by treating a ZSM-5 zeolite catalyst having a silica/alumina mole ratio of at least about 200 with a phosphorus compound. The phosphorus-treated ZSM-5 zeolite catalyst is calcined and steamed. Steaming of the catalyst is carried out at a temperature of less than about 300° C. The phosphorus-treated ZSM-5 zeolite catalyst has less than 0.05% by weight of the catalyst of any other element other than phosphorus provided from any treatment of the ZSM-5 zeolite with a compound containing said other element. The catalyst may be used in aromatic alkylation by contacting the catalyst with feed of an aromatic hydrocarbon and an alkylating agent within a reactor under reactor conditions suitable for aromatic alkylation. Water cofeed may be introduced water into the reactor during the aromatic alkylation reaction.

    摘要翻译： 通过用磷化合物处理具有至少约200的二氧化硅/氧化铝摩尔比的ZSM-5沸石催化剂来进行处理ZSM-5型沸石催化剂的方法。 磷处理的ZSM-5沸石催化剂被煅烧和蒸煮。 催化剂的蒸汽在小于约300℃的温度下进行。磷处理的ZSM-5沸石催化剂具有小于0.05重量％的任何除了磷的任何其它元素的催化剂 ZSM-5沸石与含有所述其它元素的化合物。 催化剂可以通过在适于芳族烷基化的反应器条件下在反应器内使催化剂与芳族烃和烷基化剂的进料接触而用于芳族烷基化。 在芳香族烷基化反应期间，可以将水共进料引入反应器中。

    Method of preparing a xylene product
    9.
    发明授权
    Method of preparing a xylene product 有权
    二甲苯产品的制备方法

    公开(公告)号：US07560608B2

    公开(公告)日：2009-07-14

    申请号：US11876259

    申请日：2007-10-22

    申请人： Ashim Kumar Ghosh ,  Gopalakrishnan Juttu ,  Pamela Harvey ,  Neeta Kulkarni

    发明人： Ashim Kumar Ghosh ,  Gopalakrishnan Juttu ,  Pamela Harvey ,  Neeta Kulkarni

    IPC分类号： C07C2/66

    CPC分类号： B01J29/40 ,  B01J2229/12 ,  B01J2229/37 ,  C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： A method of modifying a zeolite catalyst to increase para-xylene selectivity of the zeolite catalyst in toluene methylation reactions is provided. The method includes forming a slurry of a ZSM-5-type zeolite and an aqueous solution of a phosphorus compound. Water is removed from the slurry to provide a non-steamed, phosphorus treated ZSM-5 zeolite catalyst without deposition of phosphorus onto the catalyst by organophosphorus vapor deposition. The resulting non-steamed, phosphorus treated ZSM-5 zeolite catalyst has a pore volume of from 0.2 ml/g or less and provides greater than 80% para-xylene selectivity of mixed xylenes when used in toluene methylation.

    摘要翻译： 提供了一种改进沸石催化剂以提高沸石催化剂在甲苯甲基化反应中的对二甲苯选择性的方法。 该方法包括形成ZSM-5型沸石的浆料和磷化合物的水溶液。 从浆液中除去水，以提供不经蒸煮的磷处理的ZSM-5沸石催化剂，而不通过有机磷气相沉积将磷沉积在催化剂上。 所得非蒸馏磷处理的ZSM-5沸石催化剂的孔体积为0.2ml / g或更低，当用于甲苯甲基化时，其混合二甲苯的对二甲苯选择性大于80％。

    Phosphorus-Containing Zeolite Catalyst
    10.
    发明申请
    Phosphorus-Containing Zeolite Catalyst 有权
    含磷沸石催化剂

    公开(公告)号：US20080176736A1

    公开(公告)日：2008-07-24

    申请号：US12054807

    申请日：2008-03-25

    申请人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey

    发明人： Ashim Kumar Ghosh ,  Neeta Kulkarni ,  Pamela Harvey

    IPC分类号： B01J29/40 ,  B01J29/06 ,  B01J21/16 ,  B01J21/04

    CPC分类号： B01J29/40 ,  B01J2229/18 ,  B01J2229/37 ,  B01J2229/42 ,  C07C2/864 ,  C07C2529/40 ,  Y02P20/52 ,  C07C15/08

    摘要： A zeolite catalyst is prepared by treating a zeolite with a phosphorus compound to form a phosphorus-treated zeolite. The phosphorus-treated zeolite is heated to a temperature of about 300° C. or higher and combined with an inorganic oxide binder material to form a zeolite-binder mixture. The zeolite-binder mixture is heated to a temperature of about 400° C. or higher to form a bound zeolite catalyst. The bound zeolite may exhibit at least two 31P MAS NMR peaks with maxima at from about 0 to about −55 ppm, with at least one peak having a maximum at from about −40 to about −50 ppm. Zeolites containing 10-oxygen ring pores that have been prepared in such a way may be used in aromatic alkylation by contacting the bound zeolite catalyst with an aromatic alkylation feed of an aromatic compound and an alkylating agent under reaction conditions suitable for aromatic alkylation.

    摘要翻译： 通过用磷化合物处理沸石以形成磷处理的沸石来制备沸石催化剂。 将磷处理的沸石加热至约300℃或更高的温度，并与无机氧化物粘合剂材料组合以形成沸石 - 粘合剂混合物。 将沸石 - 粘合剂混合物加热至约400℃或更高的温度以形成结合的沸石催化剂。 结合的沸石可以显示至少两个具有约0至约-55ppm的最大值的31 P MAS NMR峰，其中至少一个峰在约-40至约-50ppm处具有最大值 。 含有以这种方式制备的10-氧环孔的沸石可以通过使结合的沸石催化剂与适于芳族烷基化的反应条件下的芳族化合物和烷基化剂的芳族烷基化进料接触而用于芳族烷基化。