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1.发明授权Integrated thermal swing-pressure swing adsorption process for hydrogen and hydrocarbon recovery 失效用于氢气和烃回收的综合热摆动 - 变压吸附过程
公开(公告)号：US5012037A
公开(公告)日：1991-04-30
申请号：US463315
申请日：1990-01-10
CPC分类号： C07C7/12 , C10G25/03 , Y02P20/129 , Y02P20/132
摘要： Processes are disclosed for the separation of light hydrocarbons from a feedstream containing hydrogen, light hydrocarbons and heavy hydrocarbons. The processes employ thermal swing adsorption zone to adsorb heavy hydrocarbons and a pressure swing adsorption zone to remove the remaining light hydrocarbons. At least a portion of the product from the pressure swing adsorption zone is used to purge the thermal swing adsorption zone. Specific applications of the process of the present invention are disclosed with relation to hydrodealkylation processes and dehydrocyclodimerization processes.
摘要翻译： 公开了从含有氢，轻烃和重烃的进料流中分离轻质烃的方法。 该方法采用热变形吸附区吸附重质烃和变压吸附区，以除去剩余的轻质烃。 来自变压吸附区的产物的至少一部分用于吹扫热变形吸附区。 关于加氢脱烷基化方法和脱氢环化二聚化方法公开了本发明方法的具体应用。
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公开(公告)号：US4863492A
公开(公告)日：1989-09-05
申请号：US276793
申请日：1988-11-28
IPC分类号： B01D53/047 , B01D53/22
CPC分类号： B01D53/229 , B01D53/047 , B01D2256/16 , B01D2257/502 , B01D2259/40007 , B01D2259/402
摘要： A gas separation process and system for integrating a gas permeable membrane system with a multiple bed pressure swing adsorption system to produce a mixed gas product having a preset adjustably controlled gas ratio and a high purity second gas component. The permeate stream from the gas permeable membrane system is fed to the PSA unit and the tail gas from the PSA unit is compressed and blended with the non-permeate stream to form the mixed gas product. The pressure of the permeate stream is controlled to adjustably control the gas ratio of the mixed gas product.
摘要翻译： 一种用于将透气膜系统与多床变压吸附系统集成以产生具有预设的可调节气体比的混合气体产物和高纯度第二气体组分的气体分离方法和系统。 来自气体渗透膜系统的渗透物流被供给到PSA单元，并且来自PSA单元的尾气被压缩并与非渗透物流混合以形成混合气体产物。 控制渗透物流的压力以可调整地控制混合气体产物的气体比。
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3.发明授权
公开(公告)号：US5332492A
公开(公告)日：1994-07-26
申请号：US74629
申请日：1993-06-10
CPC分类号： C10G35/04
摘要： A process for recovering hydrogen-rich gases and increasing the recovery of liquid hydrocarbon products from a hydrocarbon conversion zone effluent is improved by a particular arrangement of a refrigeration zone, a pressure swing adsorption (PSA) zone, and up to two separation zones. The admixing of at least a portion of the tail gas from the PSA zone with a hydrogen-rich gas stream recovered from a first vapor-liquid separation zone results in significantly improved hydrocarbon recoveries and the production of a high purity hydrogen product. The process is especially beneficial in the integration of the catalytic reforming process with vapor hydrogen consuming processes such as catalytic hydrocracking in a petroleum refinery.
摘要翻译： 通过制冷区域，变压吸附（PSA）区域和最多两个分离区域的特定布置来改进从烃转化区流出物回收富氢气体和增加液体烃产物的回收的方法。 将至少一部分来自PSA区域的尾气与从第一气液分离区回收的富氢气流混合导致显着提高的烃回收率和高纯度氢产物的生产。 该方法在催化重整过程与蒸气氢消耗过程如石油炼厂中的催化加氢裂化的整合中是特别有益的。
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4.发明申请Utilizing Waste Tail Gas From A Separation Unit Biogas Upgrade Systems As Beneficial Fuel 有权利用废气尾气分离单元沼气升级系统作为有利燃料公开(公告)号：US20110189746A1
公开(公告)日：2011-08-04
申请号：US12699395
申请日：2010-02-03
申请人： Michael J. Mitariten
发明人： Michael J. Mitariten
IPC分类号： C12P5/02
CPC分类号： C12P5/02 , Y02E50/343
摘要： The invention relates to a method for utilizing low-quality tail gas derived from a pressure swing adsorption system or membrane system, which is used to upgrade biogas, as a beneficial fuel for the facility and/or digester boiler.
摘要翻译： 本发明涉及一种利用来自变压吸附系统或膜系统的低质量尾气的方法，该系统用于升级沼气，作为设施和/或蒸煮器锅炉的有益燃料。
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5.发明授权Pressure swing adsorption with intermediate product recovery using two adsorption zones 失效使用两个吸附区进行中间产物回收的变压吸附
公开(公告)号：US5042995A
公开(公告)日：1991-08-27
申请号：US458039
申请日：1989-12-28
申请人： Michael J. Mitariten
发明人： Michael J. Mitariten
IPC分类号： B01D53/047
CPC分类号： B01D53/047 , B01D2253/102 , B01D2253/106 , B01D2253/108 , B01D2256/16 , B01D2257/104 , B01D2257/502 , B01D2257/504 , B01D2257/7022 , B01D2257/7025 , B01D2257/80 , B01D2259/40001 , B01D2259/40015 , B01D2259/4003 , B01D2259/40037 , B01D2259/40052 , B01D2259/40062 , B01D2259/40071 , B01D2259/40081 , B01D2259/402 , B01D2259/404 , B01D2259/4067 , B01D53/0476 , B01D53/261 , Y02C10/08 , Y02C20/20
摘要： A pressure swing adsorption process is provided for the separation of a feedstream containing less readily, intermediately readily, and more readily adsorbable components using first and second adsorption zones. The second adsorption zone utilizes a cycle that includes a cocurrent displacement step and the intermediately adsorbable components are recovered therefrom by countercurrent depressurization. The first adsorption zone is purged with a stream from the second adsorption zone to recover the more readily adsorbable component. In one aspect of the invention, there is provided a methanol reforming process wherein hydrogen and carbon monoxide product streams are recovered from a methanol reactor effluent stream also containing components selected from methanol, methane, dimethyl ether, carbon dioxide, oxygen and water.
摘要翻译： 提供了一种变压吸附方法，用于使用第一吸附区和第二吸附区分离含有不太容易，中间容易和更容易吸附的组分的进料流。 第二吸附区采用包括并流置换步骤的循环，并且通过逆流减压从其中回收中间可吸附组分。 用来自第二吸附区的物流吹扫第一吸附区，以回收更容易吸附的组分。 在本发明的一个方面，提供了一种甲醇重整方法，其中从甲醇，甲烷，二甲醚，二氧化碳，氧气和水中选择的组分的甲醇反应器流出物流回收氢气和一氧化碳产物流。
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公开(公告)号：US5245099A
公开(公告)日：1993-09-14
申请号：US918480
申请日：1992-07-22
申请人： Michael J. Mitariten
发明人： Michael J. Mitariten
CPC分类号： C10G70/046 , C10G55/04 , Y02P30/464
摘要： A process is provided for the concentration and recovery of ethylene and heavier components from a hydrocarbon feedstream. A pressure swing adsorption (PSA) process is used to remove from hydrocarbon feedstream light cut comprising hydrogen, carbon monoxide, and methane and subsequently concentrate a heavy cut comprising the ethylene and heavy components in the PSA tail gas. In one aspect of the invention, an FCC off gas is separated into a light cut and a heavy cut and the heavy cut is routed to an ethylene plant. In another aspect of the invention, a C.sub.2 -rich stream is withdrawn from an ethylene plant and used to enhance the recovery of the ethylene and heavier stream in the PSA process and an ethylene-rich stream is returned to the ethylene plant.
摘要翻译： 提供了一种从烃进料流中浓缩和回收乙烯和较重组分的方法。 使用变压吸附（PSA）方法从包含氢气，一氧化碳和甲烷的轻烃进料流中除去，随后将包含乙烯和重组分的重馏分浓缩在PSA尾气中。 在本发明的一个方面，FCC废气被分离成轻馏分和重馏分，重馏分被引导到乙烯装置。 在本发明的另一方面，从乙烯装置中取出富含C2的料流并用于增强PSA方法中乙烯和较重物流的回收，并且将富含乙烯的料流返回至乙烯装置。
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公开(公告)号：US06610124B1
公开(公告)日：2003-08-26
申请号：US10094716
申请日：2002-03-12
IPC分类号： B01D53047
CPC分类号： B01D53/02 , B01D53/0446 , B01D53/047 , B01D2253/102 , B01D2253/104 , B01D2253/106 , B01D2253/308 , B01D2256/24 , B01D2257/102 , B01D2257/504 , B01D2259/40001 , B01D2259/40052 , C07C7/12 , C10L3/10 , C10L3/102 , Y02C10/08 , Y02P20/152
摘要： A pressure swing adsorption process for the separation of impurities such as nitrogen and carbon dioxide and recovery of hydrocarbons from a natural gas stream utilizes two separate adsorption systems, the first containing an adsorbent selective for nitrogen, carbon dioxide or both and the second containing a hydrocarbon-selective adsorbent. In the process, the natural gas stream is passed through a first adsorbent to form a product stream enriched with methane and to adsorb nitrogen and/or carbon dioxide and which further co-adsorbs at least a portion of the hydrocarbons contained in the feed stream. The hydrocarbons are recovered by passing a low pressure waste stream from the first pressure swing adsorption stage which contains co-adsorbed nitrogen and/or carbon dioxide and hydrocarbons and directing the waste stream to the second pressure swing adsorption stage to adsorb the hydrocarbons and produce a product stream enriched in nitrogen and/or carbon dioxide. The hydrocarbons are recovered from the hydrocarbon-selective adsorbent by an intermediate pressure methane-containing stream from the first pressure swing adsorption stage which purges the adsorbent in the second stage and forms a combined stream comprising methane and C3+ hydrocarbons. The C3+ hydrocarbons can be separated from the methane such as by compression with flash separation or refrigeration.
摘要翻译： 用于分离杂质如氮气和二氧化碳并从天然气流中回收碳氢化合物的变压吸附方法使用两个单独的吸附系统，第一个吸附系统包含对氮气，二氧化碳或二者均有选择性的吸附剂，第二个包含烃 选择性吸附剂。 在该过程中，天然气流通过第一吸附剂以形成富含甲烷的产物流并吸附氮和/或二氧化碳，并进一步共吸附进料流中所含烃的至少一部分。 通过从含有共吸附的氮和/或二氧化碳和烃的第一变压吸附阶段通过低压废物流并将废物流引导到第二变压吸附阶段以吸附烃并产生 富含氮和/或二氧化碳的产物流。 通过来自第一变压吸附阶段的中压含甲烷流从烃选择性吸附剂回收烃，其在第二阶段中清洗吸附剂并形成包含甲烷和C3 +烃的组合流。 可以将C3 +烃与甲烷分离，例如通过用闪蒸分离或制冷进行压缩。
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公开(公告)号：US5457256A
公开(公告)日：1995-10-10
申请号：US254850
申请日：1994-06-06
CPC分类号： F25J3/06 , C07C11/02 , C07C5/333 , Y10S62/932
摘要： A process is disclosed for the catalytic dehydrogenation of C.sub.3 -C.sub.4 hydrocarbons wherein an integrated scheme comprising a cold box unit and a pressure swing adsorption unit is employed to reject methane produced in the dehydrogenation reaction from the hydrogen-rich recycle stream. The process results in a significant improvement in the efficiency of the separation of the reaction by-products and a corresponding increase in the overall feed capacity of the process.
摘要翻译： 公开了一种用于C3-C4烃的催化脱氢的方法，其中使用包含冷箱单元和变压吸附单元的集成方案来从富氢再循环流中排除在脱氢反应中产生的甲烷。 该方法导致反应副产物分离的效率显着提高，并且该方法的总进料能力相应增加。
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9.发明授权
公开(公告)号：US5345025A
公开(公告)日：1994-09-06
申请号：US992321
申请日：1992-12-21
CPC分类号： C07C5/325
摘要： A process for the separation and recovery of the product stream resulting from the dehydrogenation of dehydrogentable hydrocarbons which process utilizes an integrated system for the recovery of liquid olefin product by use of a compression system, a pressure swing adsorption unit and a chiller system to concentrate the olefin poroduct.
摘要翻译： 用于分离和回收由可脱氢烃脱氢产生的产物流的方法，该方法利用用于通过压缩系统，变压吸附单元和冷却器系统回收液体烯烃产物的集成系统来浓缩 烯烃导管。
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10.发明授权
公开(公告)号：US5177293A
公开(公告)日：1993-01-05
申请号：US866722
申请日：1992-04-10
IPC分类号： C07C5/32
摘要： A process for the separation and recovery of the products stream resulting from the dehydrogenation of dehydrogenatable hydrocarbons which process utilizes an integrated system for the recovery of liquid olefin product by the use of a compression system, a pressure swing adsorption unit and a chiller system to concentrate the olefin product.
摘要翻译： 用于分离和回收由可脱氢烃脱氢产生的产物流的方法，该方法利用用于通过使用压缩系统，变压吸附单元和冷却器系统来浓缩液体烯烃产物的集成系统来集中 烯烃产物。
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