公开(公告)号：US08258360B2

公开(公告)日：2012-09-04

申请号：US11885819

申请日：2006-03-01

申请人： Michael C. Clark ,  Vijay Nanda ,  Brian Maerz

发明人： Michael C. Clark ,  Vijay Nanda ,  Brian Maerz

IPC分类号： C07C2/66 ,  C07C6/12

CPC分类号： C07C2/66 ,  C07C6/126 ,  C10G29/205 ,  C10G2300/1081 ,  C10G2300/1088 ,  C10G2300/1096 ,  C10G2300/4018 ,  C10G2300/4056 ,  C10G2400/30 ,  Y02P20/52 ,  C07C15/073 ,  C07C15/085

摘要： A process for producing a monoalkylated aromatic product in a reactor by reacting a mixed phase mixture of an alkylatable aromatic compound feedstock with another feedstock comprising alkene component in a reaction zone containing an alkylation catalyst. An effluent comprising the monoalkylated aromatic product and polyalkylated aromatic compounds exits from the reaction zone in liquid phase. The polyalkylated aromatic compounds can be separated as feed stream for transalkylation reaction in a transalkylation reaction zone.

摘要翻译： 通过使可烷基化芳族化合物原料的混合相与包含烯烃组分的原料在含有烷基化催化剂的反应区中反应，在反应器中制备单烷基化芳族化合物的方法。 包含单烷基化芳族产物和多烷基化芳族化合物的流出物以液相从反应区中排出。 多烷基化芳族化合物可以在烷基转移反应区中作为烷基转移反应的进料流分离。

公开(公告)号：US08217214B2

公开(公告)日：2012-07-10

申请号：US13076782

申请日：2011-03-31

申请人： Michael C. Clark ,  Vijay Nanda ,  Carlos N. Lopez ,  Brian Maerz ,  Maruti Bhandarkar

发明人： Michael C. Clark ,  Vijay Nanda ,  Carlos N. Lopez ,  Brian Maerz ,  Maruti Bhandarkar

IPC分类号： C07C2/66 ,  C07C6/12

CPC分类号： C07C2/66 ,  C07C5/2708 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  C07C15/073

摘要： Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm.

摘要翻译： 公开了乙苯工艺，其中串联或组合的气相烷基化/烷基转移反应区被改造成具有气相烷基化反应器和液相烷基转移反应器，其中平行排列的气相烷基化反应器和气相烷基转移反应 将反应器改造成具有气相烷基化反应器和液相烷基转移反应器，其中乙苯产物的二甲苯含量小于700wppm。

公开(公告)号：US07939704B2

公开(公告)日：2011-05-10

申请号：US12752453

申请日：2010-04-01

申请人： Michael C. Clark ,  Vijay Nanda ,  Carlos N. Lopez ,  Brian Maerz ,  Maruti Bhandarkar

发明人： Michael C. Clark ,  Vijay Nanda ,  Carlos N. Lopez ,  Brian Maerz ,  Maruti Bhandarkar

IPC分类号： C07C2/66 ,  C07C6/12

CPC分类号： C07C2/66 ,  C07C5/2708 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/65 ,  C07C2529/70 ,  C07C15/073

摘要： Disclosed are ethylbenzene processes in which a series-arranged or combined vapor phase alkylation/transalkylation reaction zone is retrofitted to have a vapor phase alkylation reactor and a liquid phase transalkylation reactor, and in which a parallel-arranged vapor phase alkylation reactor and vapor phase transalkylation reactor is retrofitted to have a vapor phase alkylation reactor and liquid phase transalkylation reactor, wherein the xylenes content of the ethylbenzene product is less than 700 wppm.

摘要翻译： 公开了乙苯工艺，其中串联或组合的气相烷基化/烷基转移反应区被改造成具有气相烷基化反应器和液相烷基转移反应器，其中平行排列的气相烷基化反应器和气相烷基转移反应 将反应器改造成具有气相烷基化反应器和液相烷基转移反应器，其中乙苯产物的二甲苯含量小于700wppm。

公开(公告)号：US07790939B2

公开(公告)日：2010-09-07

申请号：US12629165

申请日：2009-12-02

申请人： Michael C. Clark ,  Vijay Nanda

发明人： Michael C. Clark ,  Vijay Nanda

IPC分类号： C07C2/66

CPC分类号： C07C2/66 ,  C07C2529/06 ,  C10G2400/30 ,  C07C15/073 ,  C07C15/085

摘要： A process for alkylation or transalkylation of an alkylatable aromatic compound having reactive impurities with an alkylating agent to produce a monoalkylated aromatic compound, comprising the steps of contacting at least a portion of said alkylatable aromatic compounds and said alkylating agent with a first molecular sieve catalyst in a guard bed under suitable conditions to remove said reactive impurities and form a first effluent comprising monoalkylated aromatic compound, unreacted alkylatable aromatic compounds and unreacted alkylating agent; contacting said first effluent with a second molecular sieve catalyst different from said first molecular sieve catalyst in said reaction zone under suitable alkylation or transalkylation conditions to produce additional said monoalkylated aromatic compounds; and maintaining said water content from about 1 wppm to about 10 wt. % based on the combined weight of said alkylatable aromatic compound and said alkylating agent in said reaction zone for the majority of the on-oil time.

摘要翻译： 将具有反应性杂质的可烷基化芳族化合物与烷基化剂烷基化或烷基转移以制备单烷基化芳族化合物的方法，包括使至少一部分所述可烷基化芳族化合物和所述烷基化试剂与第一分子筛催化剂接触的步骤 在适当条件下保护床以除去所述反应性杂质并形成包含单烷基化芳族化合物，未反应的可烷基化芳族化合物和未反应的烷基化剂的第一流出物; 在合适的烷基化或烷基转移条件下使所述第一流出物与所述反应区中不同于所述第一分子筛催化剂的第二分子筛催化剂接触以产生另外的所述单烷基化芳族化合物; 并保持所述含水量为约1wppm至约10wt。 基于所述可烷基化芳族化合物和所述烷基化剂在所述反应区中用于大部分油上时间的总重量。

公开(公告)号：US07649122B2

公开(公告)日：2010-01-19

申请号：US11599864

申请日：2006-11-15

申请人： Michael C. Clark ,  Vijay Nanda

发明人： Michael C. Clark ,  Vijay Nanda

IPC分类号： C07C2/58

CPC分类号： C07C2/66 ,  C07C2529/06 ,  C10G2400/30 ,  C07C15/073 ,  C07C15/085

摘要： A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of (a) contacting at least one the alkylatable aromatic compound and at least one the alkylating agent with at least one molecular sieve catalyst under suitable alkylation or transalkylation conditions in at least one reaction zone, to produce at least one effluent which comprises the monoalkylated aromatic compound, wherein the suitable alkylation or transalkylation conditions comprise a water content being in a range from about 1 wppm to about 10 wt. % based on the combined weight of the alkylatable aromatic compound and the alkylating agent; and (b) maintaining the water content in the reaction zone; wherein the cycle length of the molecular sieve catalyst operated inside the range of the water content is greater than the cycle length of the molecular sieve catalyst operated outside the range of the water content.

摘要翻译： 烷基化芳族化合物以制备单烷基化芳族化合物的方法，包括以下步骤：（a）在合适的烷基化或烷基转移下使至少一种可烷基化芳族化合物与至少一种烷基化剂与至少一种分子筛催化剂接触 在至少一个反应区中的条件，以产生至少一种包含单烷基化芳族化合物的流出物，其中合适的烷基化或烷基转移条件包括水含量在约1wppm至约10wt。 基于可烷基化芳族化合物和烷基化剂的总重量的％; 和（b）保持反应区中的水分含量; 其中在水含量范围内操作的分子筛催化剂的循环长度大于在水含量范围之外运行的分子筛催化剂的循环长度。

公开(公告)号：US07385098B2

公开(公告)日：2008-06-10

申请号：US11546678

申请日：2006-10-12

申请人： Vijay Nanda

发明人： Vijay Nanda

IPC分类号： C07C2/66

CPC分类号： B01J29/40 ,  B01J37/0009 ,  B01J2229/42 ,  C07C2/66 ,  C07C15/073

摘要： The invention relates to a process for producing alkylated aromatics, preferably ethylbenzene, in a multiple bed reactor in which at least two catalysts, each comprising a molecular sieve, are used in sequential beds. The first alkylation catalyst is selected to have a higher activity or alpha value than the subsequent alkylation catalyst.

摘要翻译： 本发明涉及在多床反应器中制备烷基化芳族化合物，优选乙苯的方法，其中在顺序床中使用至少两种各自包含分子筛的催化剂。 选择第一烷基化催化剂具有比随后的烷基化催化剂更高的活性或α值。

公开(公告)号：US08623777B2

公开(公告)日：2014-01-07

申请号：US12738061

申请日：2008-10-07

申请人： Terry Eugene Helton ,  Vijay Nanda ,  Wei-Ping Tai ,  Teresa Ann Jurgens-Kowal ,  Kathleen Marie Keville

发明人： Terry Eugene Helton ,  Vijay Nanda ,  Wei-Ping Tai ,  Teresa Ann Jurgens-Kowal ,  Kathleen Marie Keville

IPC分类号： B01J38/04 ,  B01J38/10 ,  B01J38/06 ,  B01J38/02

CPC分类号： B01J38/02 ,  B01J29/041 ,  B01J29/08 ,  B01J29/18 ,  B01J29/7007 ,  B01J29/90 ,  B01J38/04

摘要： This disclosure relates to a method for rejuvenating a catalyst, comprising contacting the catalyst with a gaseous feedstock at rejuvenation conditions for at least one hour to form a rejuvenated catalyst and a gaseous product, wherein the catalyst comprises at least 10 wt. % of a molecular sieve, wherein the catalyst prior to the contacting step comprises from 0.001 wt. % to 45 wt. % of hydrocarbons and 0.001 to 10 wt. % nitrogen containing components based on the total weight of the catalyst prior to the contacting step, wherein the molecular sieve comprises at least one of a MCM-22 family molecular sieve, a molecular sieve having a framework type of *BEA, a molecular sieve having a framework type of FAU, and a molecular sieve having a framework type of MOR, wherein the gaseous feedstock comprises at least one of N2, H2, alkane, He, Ar, CO, and CO2, wherein the gaseous product has at least a portion of the gaseous feedstock and at least a portion of the hydrocarbons of the catalyst and at least a portion of the nitrogen containing components of the catalyst, wherein the rejuvenation conditions comprise a temperature in the range from about 400 to 600° C., a pressure in the range from about 101.3 kPa-a to 10130 kPa-a, a space hourly velocity in the range of from 0.05 to 10 hr−1.

摘要翻译： 本公开涉及一种用于使催化剂再生的方法，包括在再生条件下将催化剂与气态原料接触至少1小时，以形成复原的催化剂和气态产物，其中催化剂包含至少10wt。 ％的分子筛，其中在接触步骤之前的催化剂包含0.001重量％ ％至45重量％ ％的烃和0.001至10wt。 ％的含氮组分基于在接触步骤之前的催化剂的总重量，其中分子筛包括MCM-22族分子筛，具有骨架类型为* BEA的分子筛中的至少一种，分子筛具有 骨架类型的FAU和具有骨架类型MOR的分子筛，其中气态原料包括N 2，H 2，烷烃，He，Ar，CO和CO 2中的至少一种，其中气态产物具有至少一部分 的气态原料和催化剂的烃的至少一部分和催化剂的至少一部分含氮组分，其中再生条件包括约400-600℃的温度，压力 在约101.3kPa-a至10130kPa-a的范围内，空间时速在0.05至10小时-1的范围内。

公开(公告)号：US20130203179A1

公开(公告)日：2013-08-08

申请号：US13640344

申请日：2011-04-08

申请人： Matthew J. Vincent ,  David L. Fletcher ,  Vijay Nanda

发明人： Matthew J. Vincent ,  David L. Fletcher ,  Vijay Nanda

IPC分类号： G01N25/00

CPC分类号： G01N25/00 ,  B01J20/08 ,  B01J20/10 ,  B01J20/18 ,  B01J29/70 ,  B01J29/7038 ,  C07C2/70 ,  C07C2529/06 ,  C10G29/205 ,  C10G45/08 ,  C10G45/72 ,  C10G47/36 ,  C10G61/00 ,  C10G69/123 ,  C10G2300/1092 ,  C10G2300/1096 ,  C10G2300/202 ,  C10G2300/205 ,  C10G2400/30

摘要： Disclosed is a method for determining when to replace a guard bed material used to remove one or more catalyst poisons from a feed based on a parameter change in a process. A guard bed having a guard bed material is in fluid communication with a catalyst bed having a catalyst. At least three monitors are positioned in said guard bed or said catalyst bed and at least one parameter of the guard bed or catalyst bed is monitored. A feed component comprising one or more catalyst poisons is supplied to said guard bed or said catalyst bed. The feed is contacted with said guard bed material or said catalyst to remove at least a portion of a catalyst poison and to form a product which produces an increase or a decrease in said parameter. The monitored parameters are compared to determine when to replace the guard bed material.

摘要翻译： 公开了一种用于基于过程中的参数变化来确定何时更换用于从进料中去除一种或多种催化剂毒物的保护床材料的方法。 具有防护床材料的保护床与具有催化剂的催化剂床流体连通。 至少三个监视器位于所述保护床或所述催化剂床中，并且监视保护床或催化剂床的至少一个参数。 将包含一种或多种催化剂毒物的进料组分供应到所述保护床或所述催化剂床。 进料与所述保护床材料或所述催化剂接触以除去至少一部分催化剂毒物并形成产生所述参数的增加或减少的产物。 比较监测的参数，以确定何时更换防护层材料。

公开(公告)号：US20110224469A1

公开(公告)日：2011-09-15

申请号：US12721326

申请日：2010-03-10

申请人： Matthew J. Vincent ,  Vijay Nanda ,  Maruti Bhandarkar ,  Brian Maerz ,  Terry E. Helton

发明人： Matthew J. Vincent ,  Vijay Nanda ,  Maruti Bhandarkar ,  Brian Maerz ,  Terry E. Helton

IPC分类号： C07C2/66

CPC分类号： C07C2/66 ,  C07C6/126 ,  C07C7/13 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/70 ,  C07C15/04 ,  C07C15/073 ,  C07C15/085 ,  C07C15/02

摘要： Disclosed is a process for the production of alkylated aromatics by contacting a feed stream comprising an alkylatable aromatic, an alkylating agent and trace amounts of water and impurities in the presence of first and second alkylation catalysts wherein the water and impurities are removed in order to improve the cycle length of such alkylation catalysts. Water and a portion of impurities are removed in a dehydration zone. A first alkylation zone having a first alkylation catalyst which, in some embodiments is a large pore molecular sieve, acts to remove a larger portion of impurities, such as nitrogenous and other species, and to alkylate a smaller portion of the alkylatable aromatic compound. A second alkylation zone, which in some embodiments is a medium pore molecular sieve, acts to remove a smaller portion of impurities, and to alkylate a larger portion of the alkylatable aromatic compound.

摘要翻译： 公开了通过在第一和第二烷基化催化剂存在下使包含可烷基化芳族化合物，烷基化剂和痕量水和杂质的进料流接触来生产烷基化芳族化合物的方法，其中除去水和杂质以改善 这种烷基化催化剂的循环长度。 在脱水区中除去水和一部分杂质。 具有第一烷基化催化剂的第一烷基化区，在一些实施方案中为大孔分子筛，起到除去较大部分杂质如氮和其它物质的作用，并将较小部分的可烷基化芳族化合物烷基化。 在一些实施方案中，第二烷基化区是中孔分子筛，起到除去较少部分杂质的作用，并使大部分可烷基化芳族化合物烷基化。

公开(公告)号：US07745676B2

公开(公告)日：2010-06-29

申请号：US11881921

申请日：2007-07-30

申请人： Michael C. Clark ,  Vijay Nanda ,  Maruti Bhandarkar ,  Joseph C. Peters ,  Chung-Ming Chi ,  Brian Maerz

发明人： Michael C. Clark ,  Vijay Nanda ,  Maruti Bhandarkar ,  Joseph C. Peters ,  Chung-Ming Chi ,  Brian Maerz

IPC分类号： C07C2/66

CPC分类号： C07C2/66 ,  C07C15/073 ,  C07C15/02

摘要： A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream. At least part of the unreacted alkylatable aromatic compound and a third feed comprising said alkene is introduced into a second alkylation reaction zone comprising a second alkylation catalyst. The second alkylation reaction zone is operated under conditions effective to cause alkylation of the unreacted alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the liquid phase. A second effluent comprising said alkylaromatic compound is withdrawn from the second alkylation reaction zone.

摘要翻译： 描述了用于生产烷基芳族化合物的方法，其中将包含可烷基化芳族化合物的第一种进料和包含烯烃的第二种进料引入到包含第一烷基化催化剂的第一烷基化反应区中。 第一烷基化反应区在有效使烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行，条件是使可烷基化芳族化合物至少主要在气相中。 包含烷基芳族化合物和未反应的可烷基化芳族化合物的第一流出物从第一烷基化反应区取出，并且处理至少部分未反应的可烷基化芳族化合物以除去其中的催化剂毒物并产生经处理的未反应的可烷基化芳族物流。 将至少部分未反应的可烷基化芳族化合物和包含所述烯烃的第三进料引入到包含第二烷基化催化剂的第二烷基化反应区中。 第二烷基化反应区在有效使得未反应的可烷基化芳族化合物被烯烃烷基化以产生所述烷基芳族化合物的条件下运行，条件是使可烷基化芳族化合物至少主要在液相中。 从第二烷基化反应区取出包含所述烷基芳族化合物的第二流出物。