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公开(公告)号：US5449501A
公开(公告)日：1995-09-12
申请号：US219325
申请日：1994-03-29
CPC分类号： C07C41/42 , B01D3/009 , B01J8/0453 , B01J8/0492 , C07C41/06 , Y02P20/127
摘要： Hydrocarbons are converted in a novel catalytic distillation zone comprising two or more cylindrical beds of dense loaded catalyst. Each catalyst bed is penetrated by a plurality of vertical vapor passageways which provide a means for vapor communication between fractionation sections located above and below the catalyst beds. The dense loading of the catalyst provides a low cost method of placing a large quantity of catalyst into the apparatus.
摘要翻译： 在包含两个或多个致密负载的催化剂的圆柱形床的新型催化蒸馏区中转化碳氢化合物。 每个催化剂床都被多个垂直蒸气通道穿透，这些通道提供了一个在催化剂床上方和下方的分馏部分之间进行气相连通的装置。 催化剂的密集负载提供了一种将大量催化剂置于装置中的低成本方法。
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2.发明授权Two-stage process for producing diisopropyl ether using catalytic distillation 失效使用催化蒸馏生产二异丙醚的两阶段方法
公开(公告)号：US5744645A
公开(公告)日：1998-04-28
申请号：US625859
申请日：1996-04-01
CPC分类号： C07C41/06 , C07C29/04 , C07C41/42 , Y02P20/127
摘要： A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted with water in the presence of a catalyst to effect hydration to produce an effluent stream containing at least water, unreacted propylene, and isopropyl alcohol, and then, in an etherification zone, at least a portion of the effluent stream is further reacted by catalytic distillation in the presence of a catalyst to effect reaction of propylene and isopropyl alcohol to form diisopropyl ether while concurrently separating an organic portion containing the diisopropyl ether and an aqueous portion, and collecting the organic portion containing the diisopropyl ether.
摘要翻译： 已经开发了一种有效生产二异丙醚的方法，其中使用催化蒸馏来提高产物的产率超过热力学平衡限制。 在水合区中，原料中的丙烯在催化剂存在下与水反应以进行水合以产生至少含有水，未反应的丙烯和异丙醇的流出物流，然后在醚化区中至少 在催化剂存在下，通过催化蒸馏进一步使部分流出物流进行反应，以使丙烯和异丙醇反应形成二异丙醚，同时分离含有二异丙醚和水溶液部分的有机部分，收集含有 二异丙醚。
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3.发明授权Two-stage process for producing diisopropyl ether using catalytic distillation 失效使用催化蒸馏生产二异丙醚的两阶段方法
公开(公告)号：US5504258A
公开(公告)日：1996-04-02
申请号：US311993
申请日：1994-09-26
CPC分类号： C07C41/06 , C07C29/04 , C07C41/42 , Y02P20/127
摘要： A process for the efficient production of diisopropyl ether where catalytic distillation is used to increase the yield of product beyond thermodynamic equilibrium limitations has been developed. In a hydration zone the propylene in a feedstock is reacted with water in the presence of a catalyst to effect hydration to produce an effluent stream containing at least water, unreacted propylene, and isopropyl alcohol, and then, in an etherification zone, at least a portion of the effluent stream is further reacted by catalytic distillation in the presence of a catalyst to effect reaction of propylene and isopropyl alcohol to form diisopropyl ether while concurrently separating a propylene rich portion, a diisopropyl ether rich portion and an aqueous portion, and recovering the diisopropyl ether from the diisopropyl ether rich portion.
摘要翻译： 已经开发了一种有效生产二异丙醚的方法，其中使用催化蒸馏来提高产物的产率超过热力学平衡限制。 在水合区中，原料中的丙烯在催化剂存在下与水反应以进行水合以产生至少含有水，未反应的丙烯和异丙醇的流出物流，然后在醚化区中至少 在催化剂存在下，通过催化蒸馏进一步反应出一部分流出物流，进行丙烯与异丙醇的反应，生成二异丙醚，同时分离富丙烯部分，富含二异丙醚的部分和水分，并回收 二异丙基醚。
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公开(公告)号：US5763730A
公开(公告)日：1998-06-09
申请号：US666717
申请日：1996-06-18
申请人： Hemant W. Dandekar , Gregory A. Funk , Ralph D. Gillespie , Herman A. Zinnen , Charles P. McGonegal , Masami Kojima , Simon H. Hobbs
发明人： Hemant W. Dandekar , Gregory A. Funk , Ralph D. Gillespie , Herman A. Zinnen , Charles P. McGonegal , Masami Kojima , Simon H. Hobbs
CPC分类号： C07C5/2789 , C07C5/2791 , C07C7/13 , C07C9/12 , C07C9/16 , C07C9/18 , C07C2521/04 , C07C2521/06 , C07C2523/42 , C07C2523/54 , C07C2527/126 , C07C2529/22 , 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 subsequent zone of the simulated moving bed, the unreacted alkanes are desorbed using a desorbent and may be catalytically isomerized to form additional isomerized products which are also separated and collected. 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 EU-1, ZSM-12, SAPO-5, Y-82, faujasite, erionite, 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.
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。 在模拟移动床的随后区域中，未反应的烷烃使用解吸剂解吸，并且可以被催化异构化以形成也被分离和收集的另外的异构化产物。 在模拟移动床中使用的催化剂可以是钨酸氧化锆上的铂，模拟移动床中使用的吸附剂可以是EU-1，ZSM-12，SAPO-5，Y-82，八面沸石，毛沸石，沸石β与 钠，锂，钾，钡，钙，锶或其组合，与钙和锶交换的沸石X，与钠，锂，钾，钡，钙，锶或它们的组合交换的丝光沸石。
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5.发明授权Process for continuous reaction and separation using fixed catalyst bed serially connected to simulated moving catalyst and adsorbent bed 失效使用与模拟移动催化剂和吸附剂床连续连接的固定催化剂床的连续反应和分离方法
公开(公告)号：US5618972A
公开(公告)日：1997-04-08
申请号：US394995
申请日：1995-02-27
IPC分类号： C07C67/08
CPC分类号： C07C67/08 , Y02P20/582
摘要： A two-stage process for effecting a chemical reaction has been developed. The reactants are contacted with a first stage fixed catalyst bed containing a solid catalyst or mixture of catalysts effective to catalyze the reaction and form a mixture of reactants and products. This reaction mixture and a desorbent are then contacted with a second stage simulated moving bed containing a solid or a mixture of solids effective to catalyze the reaction and to selectively adsorb at least one component from the reaction mixture. At least one product-containing stream is formed and collected. The process may be conducted in the liquid phase or in the vapor phase.
摘要翻译： 已经开发了用于进行化学反应的两阶段方法。 反应物与含有固体催化剂或有效催化反应并形成反应物和产物的混合物的催化剂混合物的第一阶段固定催化剂床接触。 然后将该反应混合物和解吸剂与含有有效催化反应的固体或固体混合物的第二阶段模拟移动床接触，并从反应混合物中选择性吸附至少一种组分。 形成并收集至少一种含有产物的流。 该方法可以在液相或气相中进行。
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公开(公告)号：US6036845A
公开(公告)日：2000-03-14
申请号：US72444
申请日：1998-05-04
IPC分类号： B01J23/14 , B01J23/40 , B01J23/96 , C10G35/10 , C10G35/14 , C10G35/04 , B01J23/90 , C10G35/06
摘要： A catalytic reforming process comprises a prereactor which provides an intermediate stream to a riser reactor with multiple catalyst injection points to obtain high aromatics yields from a naphtha feedstock. Product from the riser reactor typically is discharged into a fluidized-bed reforming reactor, in which the reforming reaction is completed and catalyst is separated from hydrogen and hydrocarbons. Hydrocarbons from the reactor are separated to recover an aromatized product. Catalyst is regenerated to remove coke and reduced for reuse in the reforming process.
摘要翻译： 催化重整方法包括一个预反应器，该预反应器提供具有多个催化剂注入点的提升管反应器的中间物流，以获得来自石脑油原料的高芳族化合物产率。 来自提升管反应器的产物通常被排放到流化床重整反应器中，其中重整反应完成并且催化剂与氢气和烃分离。 将来自反应器的烃分离以回收芳构化产物。 再生催化剂以除去焦炭并在重整过程中减少再利用。
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公开(公告)号：US5523503A
公开(公告)日：1996-06-04
申请号：US274512
申请日：1994-07-13
CPC分类号： B01J8/0457 , B01J8/04 , C07C2/58 , B01J2208/00106 , Y02P20/584
摘要： Hydrocarbons such as isobutane and benzenes are alkylated using a solid catalyst in a process which simulates the cocurrent movement of the catalyst bed versus the reactants. This has been found to greatly reduce the rate of catalyst deactivation compared to simulated countercurrent flow. The process may be performed using five or more beds of catalyst, with two undergoing regeneration at any one time. One bed is subjected to a short term liquid-phase regeneration while the other is subjected to long term vapor-phase regeneration. The catalyst preferably contains a metal hydrogenation function effective to selectively hydrogenate C.sub.6 -plus materials trapped on the used catalyst.
摘要翻译： 在模拟催化剂床与反应物的并流运动的过程中，使用固体催化剂将烃类如异丁烷和苯烷基化。 已经发现，与模拟逆流相比，催化剂失活的速率大大降低。 该方法可以使用五个或更多个催化剂床进行，其中两个在任何一个时间进行再生。 一台床进行短期液相再生，另一台进行长期气相再生。 催化剂优选含有有效地选择性氢化被捕获在所用催化剂上的C6加材料的金属加氢功能。
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8.发明授权Process for methanol production using simulated moving bed reactive chromatography 失效使用模拟移动床反应层析的甲醇生产工艺
公开(公告)号：US5449696A
公开(公告)日：1995-09-12
申请号：US283890
申请日：1994-08-01
IPC分类号： C07C29/151 , C07C27/06 , C07C29/15
CPC分类号： C07C29/1512 , Y02P20/582
摘要： A process for the continuous production of methanol through contacting at least one feed stream containing at least carbon monoxide and hydrogen, and optionally carbon dioxide, with a simulated moving bed acting as a catalyst for methanol synthesis and an adsorbent for the methanol formed has been developed. The carbon monoxide and hydrogen are catalytically reacted to form methanol which is separated from the carbon monoxide and hydrogen by concurrent adsorption. The methanol is desorbed using a carbon dioxide or hydrogen desorbent and collected. A specific embodiment is one where the feed stream is introduced to the simulated moving bed at a temperature from about 210.degree. to about 270.degree. C. and the desorbent is introduced to the simulated moving bed at a temperature of about 150.degree. to about 250.degree. C.
摘要翻译： 已经开发了通过使至少一种含有至少一氧化碳和氢气的进料流和任选的二氧化碳与用作甲醇合成催化剂的模拟移动床和形成甲醇的吸附剂接触来连续生产甲醇的方法 。 一氧化碳和氢气被催化反应以形成甲醇，其通过同时吸附与一氧化碳和氢气分离。 使用二氧化碳或氢解吸剂解吸甲醇并收集。 一个具体的实施方案是将原料流在约210℃至约270℃的温度下引入到模拟移动床中，并且解吸剂在约150℃至约250℃的温度下引入模拟移动床。 C。
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公开(公告)号：US6069289A
公开(公告)日：2000-05-30
申请号：US144229
申请日：1998-08-31
CPC分类号： C07C7/13
摘要： A process to separate multimethyl-branched alkanes from a mixture of multimethyl-branched alkanes, monomethyl-branched alkanes, and normal alkanes has been developed. The mixture is introduced to a simulated moving bed of solid adsorbent particles having the selectivity normal alkanes>monomethyl-branched alkanes>multimethyl-branched alkanes. The adsorbent may be silicalite, ferrierite, zeolite Beta, MAPO-31, SAPO-31, SAPO-11, zeolite X ion exchanged with alkaline cations, alkaline earth cations, or a mixture thereof, and zeolite Y ion exchanged with alkaline cations, alkaline earth cations, or a mixture thereof. A raffinate stream enriched in multimethyl-branched alkanes is removed from the simulated moving bed. The monomethyl-branched alkanes are desorbed from the solid adsorbent particles using a first desorbent capable of desorbing the monomethyl-branched alkanes but incapable of desorbing the normal alkanes and first extract stream enriched in the desorbed monomethyl-branched alkanes is removed from the simulated moving bed. The normal alkanes are desorbed from the solid adsorbent particles using a second desorbent, and a second extract stream enriched in the desorbed normal alkanes is removed from the simulated moving bed. The process may be incorporated into an isomerization flowscheme.
摘要翻译： 已经开发了从多甲基支链烷烃，单甲基支链烷烃和正构烷烃的混合物中分离多支链烷烃的方法。 将混合物引入具有选择性正烷烃>单甲基支链烷烃>多甲基支链烷烃的固体吸附剂颗粒的模拟移动床。 吸附剂可以是硅沸石，镁碱沸石，β沸石，MAPO-31，SAPO-31，SAPO-11，与碱性阳离子交换的沸石X，碱土金属阳离子或其混合物，和与碱性阳离子交换的沸石Y，碱 地球阳离子或其混合物。 从模拟的移动床中除去富含多甲基支链烷烃的萃余液流。 使用能够解吸单甲基支链烷烃但不能解吸正常烷烃的第一解吸剂，从固体吸附剂颗粒解吸单甲基支链烷烃，并且从模拟移动床中除去富含解吸的单甲基支链烷烃的第一提取物流 。 使用第二解吸剂将正常烷烃从固体吸附剂颗粒解吸，并且从模拟移动床中除去富含解吸的正烷烃的第二提取物流。 该方法可以并入异构化流程。
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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
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.
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