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公开(公告)号：US07560608B2
公开(公告)日：2009-07-14
申请号：US11876259
申请日：2007-10-22
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％。
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公开(公告)号：US07285511B2
公开(公告)日：2007-10-23
申请号：US10831729
申请日：2004-04-23
IPC分类号： B01J29/06
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％。
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公开(公告)号：US20090036723A1
公开(公告)日：2009-02-05
申请号：US11876259
申请日：2007-10-22
IPC分类号： C07C2/68
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％。
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公开(公告)号：US07060644B2
公开(公告)日：2006-06-13
申请号：US10753742
申请日：2004-01-08
CPC分类号： B01J29/46 , B01J29/064 , B01J29/42 , B01J37/16 , B01J37/18 , B01J2229/26 , B01J2229/42 , C07C2/864 , C07C2529/40 , C07C2529/44 , C07C2529/46 , Y02P20/52 , C07C15/08
摘要： A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 Å containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providing the catalyst within a reactor. The catalyst may be contacted with an aromatic hydrocarbon and an alkylating agent in the presence of hydrogen under reaction conditions suitable for aromatic alkylation. The catalyst may also be treated to further increase its stability. This is accomplished by heating the hydrogenating metal loaded zeolite catalyst in the presence of a reducing agent prior to use in an aromatic alkylation reaction to a temperature of from about 400° C. to about 500 ° C. for about 0.5 to about 10 hours.
摘要翻译： 用于芳族烷基化的催化剂，例如用甲醇进行甲苯烷基化，由含有氢化金属的孔径为约5.0至约7.0的沸石组成。 催化剂可用于通过在反应器内提供催化剂来制备烷基芳族化合物。 催化剂可以在芳烃和烷基化剂的存在下，在适合于芳族烷基化的反应条件下与氢气接触。 还可以处理催化剂以进一步提高其稳定性。 这是通过在还原剂存在下在负载芳族烷基化反应中加热加氢金属负载的沸石催化剂至约400℃至约500℃的温度进行约0.5至约10小时来完成的。
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公开(公告)号：US07244869B2
公开(公告)日：2007-07-17
申请号：US11369385
申请日：2006-03-07
IPC分类号： C07C2/66
CPC分类号： B01J29/46 , B01J29/064 , B01J29/42 , B01J37/16 , B01J37/18 , B01J2229/26 , B01J2229/42 , C07C2/864 , C07C2529/40 , C07C2529/44 , C07C2529/46 , Y02P20/52 , C07C15/08
摘要： A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 Å containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providing the catalyst within a reactor. The catalyst may be contacted with an aromatic hydrocarbon and an alkylating agent in the presence of hydrogen under reaction conditions suitable for aromatic alkylation. The catalyst may also be treated to further increase its stability. This is accomplished by heating the hydrogenating metal loaded zeolite catalyst in the presence of a reducing agent prior to use in an aromatic alkylation reaction to a temperature of from about 400° C. to about 500° C. for about 0.5 to about 10 hours.
摘要翻译： 用于芳族烷基化的催化剂，例如用甲醇进行甲苯烷基化，由含有氢化金属的孔径为约5.0至约7.0的沸石组成。 催化剂可用于通过在反应器内提供催化剂来制备烷基芳族化合物。 催化剂可以在芳烃和烷基化剂的存在下，在适合于芳族烷基化的反应条件下与氢气接触。 还可以处理催化剂以进一步提高其稳定性。 这是通过在还原剂存在下在负载芳族烷基化反应中加热加氢金属负载的沸石催化剂至约400℃至约500℃的温度进行约0.5至约10小时来完成的。
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公开(公告)号：US08062987B2
公开(公告)日：2011-11-22
申请号：US12573249
申请日：2009-10-05
申请人： Ashim Kumar Ghosh , Neeta Kulkarni , Pamela Harvey
发明人： Ashim Kumar Ghosh , Neeta Kulkarni , Pamela Harvey
IPC分类号： B01J29/06
CPC分类号： B01J37/28 , B01J29/06 , B01J29/40 , B01J35/1038 , B01J37/0009 , B01J37/0201 , B01J37/04 , B01J37/06 , B01J37/10 , B01J2229/36 , B01J2229/37 , B01J2229/42 , C07C2/864 , C07C2529/40 , Y02P20/52 , C07C15/08
摘要： A zeolite catalyst that may be used in aromatic alkylation is prepared by treating a zeolite with a phosphorus compound. The phosphorus-treated zeolite is calcined and contacted with liquid water, whereby an amount of phosphorus is removed from the phosphorus-treated zeolite. The phosphorus-treated zeolite is then heated. A method of preparing an aromatic product may also be carried out by contacting the prepared 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： 可用于芳族烷基化的沸石催化剂通过用磷化合物处理沸石来制备。 将磷处理的沸石煅烧并与液态水接触，由此从磷处理的沸石中除去一定量的磷。 然后加热磷处理的沸石。 制备芳香族产物的方法也可以通过使制备的沸石催化剂与芳族化合物和烷基化剂的芳族烷基化进料在适于芳族烷基化反应的条件下接触来进行。
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7.发明申请PRETREATMENT OF A PHOSPHORUS-MODIFIED ZEOLITE CATALYST FOR AN AROMATIC ALKYLATION PROCESS 有权用于芳香烷基化方法的磷酸改性沸石催化剂的预处理公开(公告)号：US20110270008A1
公开(公告)日：2011-11-03
申请号：US13179987
申请日：2011-07-11
CPC分类号： B01J29/06 , B01J29/40 , B01J37/14 , B01J37/28 , B01J38/12 , B01J2229/24 , B01J2229/40 , B01J2229/42 , C07C2/864 , C07C2529/40 , C07C2529/83 , C07C2529/85 , Y02P20/52 , Y02P20/584 , Y10S585/906 , C07C15/08
摘要： This invention relates to a process for pretreating a zeolite catalyst, specifically a zeolite which has been modified with phosphorus. The catalyst may be used in a process for alkylation of aromatics, specifically toluene methylation. The pretreatment is first to contact the catalyst with the process reactants used in a process for alkylation of aromatics for at least two hours at conditions to produce an alkylated aromatic product and then with a gaseous stream containing oxygen at a temperature and for a time until there is no oxygen consumption. The zeolite may be a MFI zeolite. This pretreatment procedure for a phosphorus-modified zeolite catalyst produces a catalyst which has increased run time, i.e., decreased deactivation rate, compared to a fresh catalyst, even after successive regenerations.
摘要翻译： 本发明涉及一种用于预处理沸石催化剂，特别是已经用磷改性的沸石的方法。 该催化剂可用于芳烃烷基化，特别是甲苯甲基化方法。 预处理首先使催化剂与用于烷基化芳族化合物的方法中使用的方法反应物接触至少两个小时，以产生烷基化芳族产物，然后在含有氧的气流在一段温度和一段时间内直到那里 没有氧气消耗。 沸石可以是MFI沸石。 磷改性沸石催化剂的这种预处理程序即使在连续再生之后也产生了与新鲜催化剂相比具有增加的运行时间，即减少失活速率的催化剂。
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公开(公告)号：US20110082025A1
公开(公告)日：2011-04-07
申请号：US12573249
申请日：2009-10-05
申请人： Ashim Kumar Ghosh , Neeta Kulkarni , Pamela Harvey
发明人： Ashim Kumar Ghosh , Neeta Kulkarni , Pamela Harvey
CPC分类号： B01J37/28 , B01J29/06 , B01J29/40 , B01J35/1038 , B01J37/0009 , B01J37/0201 , B01J37/04 , B01J37/06 , B01J37/10 , B01J2229/36 , B01J2229/37 , B01J2229/42 , C07C2/864 , C07C2529/40 , Y02P20/52 , C07C15/08
摘要： A zeolite catalyst that may be used in aromatic alkylation is prepared by treating a zeolite with a phosphorus compound. The phosphorus-treated zeolite is calcined and contacted with liquid water, whereby an amount of phosphorus is removed from the phosphorus-treated zeolite. The phosphorus-treated zeolite is then heated. A method of preparing an aromatic product may also be carried out by contacting the prepared 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： 可用于芳族烷基化的沸石催化剂通过用磷化合物处理沸石来制备。 将磷处理的沸石煅烧并与液态水接触，由此从磷处理的沸石中除去一定量的磷。 然后加热磷处理的沸石。 制备芳香族产物的方法也可以通过使制备的沸石催化剂与芳族化合物和烷基化剂的芳族烷基化进料在适于芳族烷基化反应的条件下接触来进行。
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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。
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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）。
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