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    C.sub.8 alkylaromatic hydrocarbon production using reversible flow reactive chromatography
    4.
    发明授权
    C.sub.8 alkylaromatic hydrocarbon production using reversible flow reactive chromatography 失效
    C8烷基芳烃生产使用可逆流反应层析

    公开(公告)号：US6008424A

    公开(公告)日：1999-12-28

    申请号：US175033

    申请日：1998-10-19

    申请人： Herman A. Zinnen ,  Maureen L. Bricker ,  Charles P. McGonegal

    发明人： Herman A. Zinnen ,  Maureen L. Bricker ,  Charles P. McGonegal

    IPC分类号： C07C6/12 ,  C07C7/13 ,  C07C15/067 ,  C07C5/22

    CPC分类号： C07C15/067 ,  C07C6/126 ,  C07C7/13 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P20/582

    摘要： A process for the transalkylation of benzene, toluene and alkylaromatic hydrocarbons containing nine and ten carbon atoms form alkylaromatic hydrocarbons containing eight carbon atoms has been developed. The fixed bed reaction and adsorption zone contains a transalkylation catalyst and an adsorbent effective to selectively adsorb C.sub.9 and C.sub.10 alkylaromatic hydrocarbon reactants relative to the C.sub.8 alkylaromatic hydrocarbon products. Hydrogen and a desorbent are introduced to a first portion of the zone and an effluent containing at least one C.sub.8 alkylaromatic hydrocarbon product is withdrawn from a second portion of the zone. After a period of time, the desorbent is redirected to the second portion of the zone and concurrently the effluent containing at least one C.sub.8 alkylaromatic hydrocarbon product is withdrawn from the first portion of the zone. The alternation of introducing the desorbent to a first portion and then a second portion of the zone while concurrently withdrawing the effluent from the second portion and then the first portion of the zone is continued, thereby retaining the C.sub.9 and C.sub.10 alkylaromatic hydrocarbons within the zone until they are consumed.

    摘要翻译： 已经开发了含有九个和十个碳原子的苯，甲苯和烷基芳烃的烷基转移方法形成含有八个碳原子的烷基芳烃。 固定床反应和吸附区含有相对于C8烷基芳烃产物有效选择性吸附C 9和C 10烷基芳族烃反应物的烷基转移催化剂和吸附剂。 将氢气和解吸剂引入该区域的第一部分，并且含有至少一种C 8烷基芳族烃产物的流出物从区域的第二部分排出。 一段时间后，解吸剂被重新定向到该区域的第二部分，并且同时将含有至少一种C 8烷基芳族烃产物的流出物从区域的第一部分中排出。 将解吸剂引入到区域的第一部分和第二部分同时从第二部分然后第一部分排出流出物的交替继续进行，从而将C9和C10烷基芳族烃保留在该区域内直到 它们被消耗。

    Process for aromatic transalkylation using simulated moving bed reactive chromatography
    5.
    发明授权
    Process for aromatic transalkylation using simulated moving bed reactive chromatography 失效
    使用模拟移动床反应色谱法进行芳族烷基转移的方法

    公开(公告)号：US6005153A

    公开(公告)日：1999-12-21

    申请号：US175116

    申请日：1998-10-19

    申请人： Herman A. Zinnen ,  Maureen L. Bricker ,  Charles P. McGonegal

    发明人： Herman A. Zinnen ,  Maureen L. Bricker ,  Charles P. McGonegal

    IPC分类号： C07C6/12 ,  C07C15/067 ,  C07C5/22

    CPC分类号： C07C15/067 ,  C07C6/126 ,  C07C2521/06 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P20/582

    摘要： A process for producing at least one C.sub.8 alkylaromatic hydrocarbon product from a feedstock containing at least one C.sub.9 or C.sub.10 alkylaromatic hydrocarbon reactant using simulated moving bed reactive chromatography has been developed. At least a portion of the reactants are transalkylated to form at least one product in a zone of the simulated moving bed with concurrent separation of at least one alkylaromatic hydrocarbon using the adsorbent. The adsorbed alkylaromatic hydrocarbon is desorbed from the adsorbent in a subsequent zone of the simulated moving bed and the transalkylation of the reactants with concurrent separation of at least one alkylaromatic hydrocarbon using the adsorbent is continued.

    摘要翻译： 已经开发了使用模拟移动床反应性色谱从含有至少一种C 9或C 10烷基芳族烃反应物的原料制备至少一种C 8烷基芳族烃产物的方法。 至少一部分反应物被烷基转移以在模拟移动床的区域中形成至少一种产物，同时使用吸附剂分离至少一种烷基芳族烃。 吸附的烷基芳族烃在模拟移动床的随后区域中从吸附剂中解吸，并且继续使用吸附剂同时分离至少一种烷基芳烃的反应物的烷基转移。

    Process for continuous reaction and deparation using reactive chromatography
    6.
    发明授权
    Process for continuous reaction and deparation using reactive chromatography 失效
    使用反应层析连续反应和分离的方法

    公开(公告)号：US5744683A

    公开(公告)日：1998-04-28

    申请号：US666713

    申请日：1996-06-18

    申请人： Hemant W. Dandekar ,  Gregory A. Funk ,  Simon H. Hobbs ,  Masami Kojima ,  Ralph D. Gillespie ,  Herman A. Zinnen ,  Charles P. McGonegal

    发明人： Hemant W. Dandekar ,  Gregory A. Funk ,  Simon H. Hobbs ,  Masami Kojima ,  Ralph D. Gillespie ,  Herman A. Zinnen ,  Charles P. McGonegal

    IPC分类号： C07C5/27 ,  C07C9/16 ,  C07C5/13 ,  C07C7/12

    CPC分类号： C07C9/16 ,  C07C5/2791 ,  C07C2521/04 ,  C07C2523/42 ,  C07C2527/126 ,  C07C2529/44 ,  Y02P20/582

    摘要： A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected. In a first subsequent zone of the simulated moving bed, a large portion of the unreacted alkanes are desorbed using a desorbent. In a second subsequent zone of the simulated moving bed, residual adsorbed alkanes are desorbed using a mixture of desorbent and isomerized products, and the desorbed residual alkanes may be removed from the simulated moving bed or may be reacted to form additional isomerized products. The isomerized products are removed from the simulated moving bed and collected. The process may also be used to effect other chemical reactions with the concurrent separation of product.

    摘要翻译： 已经开发了通过使烷烃与用作异构化的催化剂的模拟移动床和用于烷烃的吸附剂使烷烃连续异构化以产生异构化产物的方法。 烷烃可以是正丁烷，异构化产物2-甲基丙烷，烷烃可以是正戊烷，异构化产物2-甲基丁烷或2,2-二甲基丙烷，烷烃可以具有6个至约8个碳原子，没有 多于一个甲基支链和具有相同数目的碳原子和至少两个甲基支链的异构化产物，或者反应物可以是前述烷烃与形成相应的异构化产物的混合物。 在模拟移动床的区域中，烷烃被催化异构化以形成异构化产物。 未反应的烷烃被吸附，收集异构化产物。 在模拟移动床的第一后续区域中，大部分未反应的烷烃使用解吸剂解吸附。 在模拟移动床的第二个随后的区域中，残余吸附的烷烃使用解吸剂和异构化产物的混合物解吸，并且解吸的残余烷烃可以从模拟的移动床中除去，或者可以反应形成另外的异构化产物。 将异构化产物从模拟移动床上取出并收集。 该方法也可用于通过产品的同时分离来实现其它化学反应。

    Alkane isomerization using reversible flow reactive chromatography
    9.
    发明授权
    Alkane isomerization using reversible flow reactive chromatography 失效
    使用可逆流动反应色谱法进行烷烃异构化

    公开(公告)号：US5770783A

    公开(公告)日：1998-06-23

    申请号：US794250

    申请日：1997-02-03

    申请人： Herman A. Zinnen ,  Charles P. McGonegal

    发明人： Herman A. Zinnen ,  Charles P. McGonegal

    IPC分类号： C07C5/27 ,  C07C5/13

    CPC分类号： C07C5/2791 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2527/126 ,  C07C2529/22 ,  Y02P20/582

    摘要： A process to isomerize at least one normal or mono-methyl-branched alkane containing from about 6 to about 8 carbon atoms to form at least one multi-methyl-branched alkane has been developed. The normal or mono-methyl-branched alkane is introduced to a reaction and adsorption zone operating under conditions effective to isomerize the normal or mono-methyl-branched alkane and containing a catalyst effective to isomerize the normal or mono-methyl-branched alkane and an adsorbent effective to selectively adsorb normal and mono-methyl-branched alkanes relative to multi-methyl-branched alkanes. Hydrogen and a desorbent comprising at least one alkane having from about 4 to about 8 carbon atoms is introduced to a first portion of the reaction and adsorption zone and an effluent containing at least one multi-methyl-branched alkane is withdrawn from a second portion of the reaction and adsorption zone. After a period of time, the desorbent is redirected to the second portion of the reaction and adsorption zone and concurrently the effluent containing at least one multi-methyl-branched alkane is withdrawn from the first portion of the reaction and adsorption zone. The alternation of introducing the desorbent to a first portion and then a second portion of the reaction and adsorption zone while concurrently withdrawing the effluent from the second portion and then the first portion of the reaction and adsorption zone is continued.

    摘要翻译： 已经开发了使包含约6至约8个碳原子的至少一个正构或单甲基支链烷烃异构化以形成至少一种多甲基支链烷烃的方法。 将正常或单甲基支链烷烃引入反应和吸附区域，该反应和吸附区域在有效使异构化正构或单甲基支链烷烃并含有催化剂的条件下操作，该催化剂有效地使正丁醇或单甲基支链烷烃异构化， 吸附剂相对于多甲基支链烷烃有效选择性地吸附正烷基和单甲基支链烷烃。 包含至少一种具有约4至约8个碳原子的烷烃的氢和解吸剂被引入反应和吸附区的第一部分，并且含有至少一个多甲基支链烷烃的流出物从第二部分 反应和吸附区。 一段时间后，解吸剂被重定向到反应和吸附区的第二部分，同时从反应和吸附区的第一部分排出含有至少一个多甲基支链烷烃的流出物。 将解吸剂引入反应和吸附区的第一部分和第二部分，同时从第二部分然后第一部分的反应和吸附区域排出流出物。

    Process for alkane isomerization using reactive chromatography and reactive desorbent
    10.
    发明授权
    Process for alkane isomerization using reactive chromatography and reactive desorbent 失效

    公开(公告)号：US5744684A

    公开(公告)日：1998-04-28

    申请号：US666699

    申请日：1996-06-18

    申请人： Herman A. Zinnen ,  Charles P. McGonegal ,  Hemant W. Dandekar ,  Gregory A. Funk ,  Ralph D. Gillespie

    发明人： Herman A. Zinnen ,  Charles P. McGonegal ,  Hemant W. Dandekar ,  Gregory A. Funk ,  Ralph D. Gillespie

    IPC分类号： C07C9/16 ,  C07C5/22

    CPC分类号： C07C9/16 ,  Y02P20/582

    摘要： A process for isomerizing a mixture of alkanes containing pentanes and at least one alkane having from 6 to about 8 carbon atoms and no more than one methyl branch has been developed. The process includes: 1) separating the mixture in a first separation zone to produce two streams, a stream enriched in alkanes having from 6 to about 8 carbon atoms and a stream enriched in pentanes; 2) separating the stream enriched in pentanes in a second separation zone to produce two streams, a stream predominately comprising n-pentane and a stream predominately comprising branched pentanes; 3) passing the stream enriched in alkanes having from 6 to about 8 carbon atoms and the stream enriched in n-pentane to an isomerization zone of a simulated moving bed to produce two streams, a stream containing branched pentanes, n-pentane, and multi-methyl-branched alkanes having from 6 to about 8 carbon atoms, and a stream containing branched pentanes and n-pentane; 4) separating the stream containing branched pentanes, n-pentane, and multi-methyl-branched alkanes having from 6 to about 8 carbon atoms in a third separation zone to produce two streams, a stream enriched in multi-methyl-branched alkanes having from 6 to about 8 carbon atoms and a stream enriched in branched pentanes and n-pentane; and 5) collecting the stream predominately comprising branched pentanes from the second separation zone and the stream enriched in multi-methyl-branched alkanes having from 6 to about 8 carbon atoms from the third separation zone. The catalyst used in the simulated moving bed may be platinum on tungstated zirconia and the adsorbent used in the simulated moving bed may be one or more of the following adsorbents, zeolite beta exchanged with sodium, lithium, potassium, barium, calcium, strontium or combinations thereof, zeolite X exchanged with calcium and strontium, mordenite exchanged with sodium, lithium, potassium, barium, calcium, strontium, or combinations thereof, EU-1, ZSM-12, SAPO-5, Y-82, faujasite and erionite.