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公开(公告)号：US20120000243A1
公开(公告)日：2012-01-05
申请号：US13138574
申请日：2010-03-05
IPC分类号： F25J3/08
CPC分类号： F25J3/0223 , C01B3/16 , C01B3/506 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2203/86 , F25J3/0252 , F25J3/0266 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2200/74 , F25J2205/04 , F25J2210/06 , F25J2220/82 , F25J2230/20 , F25J2230/30 , F25J2235/80 , F25J2260/80 , F25J2270/06 , F25J2270/12 , F25J2270/60 , F25J2270/66 , F25J2270/902 , F25J2290/12 , Y02C10/12 , Y02P20/152 , Y02P30/30
摘要： A process is described for removing carbon dioxide from a synthesis gas feed stream in a cryogenic separation plant. In an example described the synthesis gas feed stream (3) comprises 40 to 65 mole % hydrogen and is fed to a single stage or a first stage of a series of separation stages (120, 103, 104) at a pressure in the range of 46 to 90 bar absolute. The single stage or a stage of the series is operated at a temperature in the range of −53 to −48° C. and a pressure in the range of 44 to 90 bar absolute. In some examples, the single stage or the combined stages of the series remove 70 to 80% of the total moles of carbon dioxide in the synthesis gas feed stream. Liquefied C02 product stream(s) discharged from the stage (s) (7,10,13) of the cryogenic separation plant may be sequestrated and/or used in a chemical process (71).
摘要翻译： 描述了一种从低温分离装置中的合成气进料流中除去二氧化碳的方法。 在所描述的实例中，合成气进料流（3）包含40至65摩尔％的氢气，并且在一系列分离级（120,103,104）的单级或第一级中以 46至90巴绝对。 该系列的单级或级级在-53至-48℃范围内的温度和44至90巴绝对压力范围内工作。 在一些实例中，该系列的单级或组合级除去合成气进料流中二氧化碳总摩尔数的70-80％。 从低温分离装置的阶段（7,10,13）排出的液化CO 2产物流可以在化学过程中被螯合和/或使用（71）。
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公开(公告)号：US20100126180A1
公开(公告)日：2010-05-27
申请号：US12452819
申请日：2008-07-08
申请人： Jonathan Alec Forsyth , Roger Neil Harper , Antonie Pieter Hinderink , Badrul Huda , Evert Van Der Pol
发明人： Jonathan Alec Forsyth , Roger Neil Harper , Antonie Pieter Hinderink , Badrul Huda , Evert Van Der Pol
摘要： This invention relates to the recovery of carbon dioxide (26) and hydrogen (3,24) concentrated form from shifted a synthesis gas stream comprising hydrogen and carbon dioxide thereby generating a carbon dioxide stream that is sequestered or used for enhanced oil recovery and a hydrogen stream that is used as fuel for a power plant thereby generation electricity. In the process of the present invention a shifted synthesis gas stream is fed to a hydrogen selective membrane separation unit (M101) at a pressure of at least 50 bar gauge and the hydrogen rich permeate stream (3) is fed directly to the combustor of a gas turbine without any requirement to re-compress the hydrogen. The residual gas stream (carbon dioxide enriched stream) from the membrane separation unit is cooled using at least one, preferably, at least two external refrigeration stages (E-101, E-102, E-103, E-104) such that the hydrogen containing offgas (24) is also obtained at above the operating pressure of the combustor of the gas turbine.
摘要翻译： 本发明涉及从包含氢气和二氧化碳的合成气流中转移二氧化碳（26）和浓缩形式的氢（3,24），从而产生被隔离或用于提高油采收率的二氧化碳流和氢 用作发电厂的燃料的流，从而发电。 在本发明的方法中，将移动的合成气流以至少50巴的压力供给到氢选择性膜分离单元（M101），并将富氢渗透物流（3）直接供给到燃烧器 燃气轮机，而不需要重新压缩氢气。 使用至少一个，优选至少两个外部制冷级（E-101，E-102，E-103，E-104）冷却来自膜分离单元的残余气流（富二氧化碳流），使得 在燃气轮机的燃烧器的工作压力以上也可获得含氢废气（24）。
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公开(公告)号：US20110203313A1
公开(公告)日：2011-08-25
申请号：US12737608
申请日：2009-07-24
IPC分类号： F25J3/00
CPC分类号： F25J3/0625 , C01B3/12 , C01B3/506 , C01B3/52 , C01B2203/0415 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C10J3/00 , C10J2300/1621 , C10J2300/1671 , C10K3/04 , F25J3/0655 , F25J3/067 , F25J2230/20 , F25J2230/30 , F25J2240/80 , F25J2270/06 , F25J2270/12 , F25J2270/60 , F25J2290/12 , Y02C10/12 , Y02P20/152 , Y02P30/30
摘要： A process for separating a synthesis gas stream into a hydrogen (H2) rich vapour stream and a liquid carbon dioxide (CO2) stream in a CO2 condensation plant comprising the steps of: (A) feeding a synthesis gas stream having a pressure in the range of 10 to 120 barg to a compression system of the CO2 condensation plant thereby increasing its pressure to 150 to 400 barg and cooling the resulting high pressure (HP) synthesis gas against an external coolant to remove at least part of the heat of compression; (B) cooling the HP synthesis gas stream to a temperature in the range of −15 to −55° C. by passing the HP synthesis gas stream through a heat exchanger system in heat exchange relationship with a plurality of refrigerant streams that are produced subsequently in the process; (C) passing the cooled HP synthesis gas stream formed in step (B) either directly or indirectly to a gas-liquid separator vessel that is operated at substantially the same pressure as the heat exchanger system and withdrawing a high pressure (HP) hydrogen rich vapour stream from the top of the separator vessel and a high pressure (HP) liquid CO2 stream from the bottom of the separator vessel; and (D) feeding the HP hydrogen rich vapour stream from step (C) to the turboexpansion system wherein the hydrogen rich vapour stream is subjected to isentropic expansion in each of the turboexpanders of the series such that hydrogen rich vapour streams are withdrawn from the turboexpanders of the series at reduced temperature and at successively reduced pressures and wherein isentropic expansion of the hydrogen rich vapour in each of the turboexpanders of the series generates motive power thereby driving a machine that is a component of the CO2 condensation plant and/or driving an alternator of an electric generator.
摘要翻译： 一种在CO 2冷凝设备中将合成气流分离成富氢（H 2）蒸气流和液态二氧化碳（CO 2）流的方法，包括以下步骤：（A）将压力在该范围内的合成气流 对于CO 2冷凝设备的压缩系统为10至120巴，从而将其压力增加至150至400巴，并将所得高压（HP）合成气冷却至外部冷却剂以去除至少部分压缩热; （B）通过使HP合成气流与随后产生的多个制冷剂流以热交换关系与热交换器系统相通，将HP合成气流冷却至-15至-55℃的温度 正在进行中; （C）将在步骤（B）中形成的冷却的HP合成气流直接或间接地通到气体 - 液体分离器容器，所述气液分离容器在与热交换器系统基本相同的压力下运行并且抽出高压（HP）富氢 来自分离器容器的顶部的蒸汽流和来自分离器容器的底部的高压（HP）液体CO 2流; 和（D）将来自步骤（C）的HP富氢蒸气流供给到涡轮膨胀系统，其中富氢蒸气流在该系列的每个涡轮膨胀机中进行等熵膨胀，使得富氢蒸气流从涡轮膨胀机 该系列在降温和连续降低的压力下，并且其中该系列的每个涡轮膨胀机中的富氢蒸汽的等熵膨胀产生动力，从而驱动作为二氧化碳冷凝设备的组件的机器和/或驱动交流发电机 的发电机。
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公开(公告)号：US20130118205A1
公开(公告)日：2013-05-16
申请号：US13809760
申请日：2011-07-15
IPC分类号： F25J3/08
CPC分类号： F25J3/08 , F04D27/02 , F04D29/582 , F04D29/5846 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2205/30 , F25J2210/04 , F25J2220/82 , F25J2230/20 , F25J2230/30 , F25J2240/70 , F25J2245/02 , F25J2270/06 , F25J2270/90 , F25J2280/02 , F25J2280/10 , F25J2280/20 , Y02C10/12
摘要： A method is described for use in the separation of carbon dioxide from a gas mixture comprising carbon dioxide. The method includes the steps of: (i) compressing and cooling the gas mixture using a compressor to form a two-phase mixture including liquid carbon dioxide (ii) separating a liquid carbon dioxide stream from the two-phase mixture; and (iii) recirculating at least a part of the liquid carbon dioxide stream and introducing the recirculated liquid stream into a process stream by recirculating separated liquid CO2 into an upstream process stream, cooling of the process stream can be obtained. By using the liquid stream, additional cooling is possible as cooling is affected by the evaporation of the liquid CO2. Thus the recirculated liquid can be used to reduce the temperature of the process stream.
摘要翻译： 描述了一种用于从包含二氧化碳的气体混合物中分离二氧化碳的方法。 该方法包括以下步骤：（i）使用压缩机压缩和冷却气体混合物，以形成包括液态二氧化碳的二相混合物（ii）从二相混合物中分离液态二氧化碳流; 和（iii）再循环至少一部分液体二氧化碳流，并通过将分离的液体CO 2再循环到上游工艺流中将再循环的液体流引入工艺流中，可以获得工艺流的冷却。 通过使用液体流，可以进行额外的冷却，因为冷却受到液体CO 2的蒸发的影响。 因此，再循环液体可用于降低工艺流的温度。
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公开(公告)号：US20120118012A1
公开(公告)日：2012-05-17
申请号：US13386705
申请日：2010-07-23
CPC分类号： B01D53/75 , B01D53/002 , B01D53/1475 , B01D2257/304 , B01D2257/504 , C01B3/506 , C01B3/52 , C01B17/0408 , C01B17/167 , C01B2203/0415 , C01B2203/0475 , C01B2203/0485 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2205/40 , F25J2205/50 , F25J2210/04 , F25J2220/82 , F25J2220/84 , F25J2230/20 , F25J2230/30 , F25J2245/02 , F25J2270/06 , Y02C10/12 , Y02P20/123 , Y02P20/124 , Y02P20/152 , Y02P20/57
摘要： A process for separating a mixture of gases into a relatively condensable first component and a relatively non-condensable second component is provided. The first component comprises one or more gases selected from the group consisting of carbon dioxide, carbonyl sulphide and hydrogen sulphide and the second component one or more gases selected from the group consisting of hydrogen, methane, ethane, carbon monoxide, nitrogen, oxygen and synthesis gas. The process itself comprises the following steps: (a) compressing and cooling a mixture of said first and second components in at least one compressor and at least one heat exchanger to a temperature and elevated pressure at which the first components condense and a two-phase gas-liquid mixture is formed; (b) separating the two phase mixture so formed into separate liquid first and gaseous second component fractions in a fractionation unit; (c) extracting residual first component from the separated gaseous second component fraction by scrubbing the second component at elevated pressure with a solvent (e.g. methanol) in a scrubber. In examples, the method further includes one or more steps of warming and expanding the gaseous second component fraction using at least one heat exchanger to exchange heat with a process stream and at least one turbo-expander capable of recovering mechanical work. The process described is highly energy efficient and is especially useful in hydrogen power plants, Integrated Gasification Combined Cycles (IGCC) and for sweetening sour natural gas.
摘要翻译： 提供了一种将气体混合物分离成相对可冷凝的第一组分和相对不可冷凝的第二组分的方法。 第一组分包括一种或多种选自二氧化碳，硫化羰和硫化氢的气体，第二组分选自氢，甲烷，乙烷，一氧化碳，氮气，氧气和合成物中的一种或多种气体 加油站。 该方法本身包括以下步骤：（a）将至少一个压缩机和至少一个热交换器中的所述第一和第二组分的混合物压缩和冷却至第一组分冷凝的温度和升高的压力，以及两相 形成气液混合物; （b）将所形成的两相混合物分离成分离单元中的分离的液体第一和气态第二组分馏分; （c）通过用洗涤器中的溶剂（例如甲醇）在升高的压力下洗涤第二组分，从分离的气态第二组分馏分中提取残留的第一组分。 在实施例中，该方法还包括使用至少一个热交换器来加热和膨胀气态第二组分馏分以与工艺流交换热量和能够回收机械功的至少一个涡轮膨胀机的一个或多个步骤。 所描述的方法是高能量的，并且在氢发电厂，综合气化组合循环（IGCC）和用于甜酸天然气中特别有用。
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公开(公告)号：US09163188B2
公开(公告)日：2015-10-20
申请号：US13386692
申请日：2010-07-23
IPC分类号： C10K1/00 , B01D53/00 , C01B3/16 , C01B3/34 , C01B3/50 , C01B3/52 , C01B17/16 , C10K1/16 , F25J3/06 , B01D53/14
CPC分类号： C10K1/005 , B01D53/002 , B01D53/1462 , B01D53/1468 , B01D2257/304 , B01D2257/504 , C01B3/16 , C01B3/34 , C01B3/506 , C01B3/52 , C01B17/167 , C01B2203/0283 , C01B2203/0415 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2203/0883 , C01B2203/0894 , C01B2203/84 , C10K1/004 , C10K1/165 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J3/0675 , F25J2205/40 , F25J2205/50 , F25J2210/04 , F25J2220/82 , F25J2220/84 , F25J2230/30 , F25J2245/02 , F25J2270/06 , F25J2270/20 , Y02C10/06 , Y02C10/12 , Y02P20/152
摘要： A process is described for separating a gas stream containing hydrogen sulfide (H2S) impurities into a hydrogen (H2) rich vapor stream, a carbon dioxide (CO2) stream and an H2S rich vapor stream in an apparatus that comprises a compression and/or cooling system comprising at least one compressor and/or heat exchanger and a gas-liquid separator vessel, and an H2S recovery unit. In examples, the process comprises the steps of: (a) feeding the gas stream to the compression and/or cooling system such that carbon dioxide in the gas stream condenses to form a two-phase stream; (b) passing the two-phase stream either directly or indirectly to a gas-liquid separator vessel and withdrawing a hydrogen rich vapor stream and a liquid CO2 stream containing dissolved H2S impurities from the separator vessel; (c) passing the liquid CO2 stream containing dissolved H2S impurities to an H2S recovery unit comprising an evaporator/condenser in which the CO2 and H2S are vaporized and an H2S absorber in which the gaseous H2S and CO2 are separated, wherein the two phase stream passed to the separator is at a pressure of from 80 bar to 400 bar. In some applications, the pressure of the H2S recovery unit is at least 30 bar. In a preferred example, residual CO2 in the hydrogen rich vapor stream is removed in an optional step by solvent extraction in a CO2 absorber most preferably in a configuration where the H2S and CO2 absorbers share the same (preferably methanol) solvent.
摘要翻译： 描述了一种方法，用于在包含压缩和/或冷却的装置中将含有硫化氢（H 2 S）杂质的气流分离成富氢的（H 2）蒸气流，二氧化碳（CO 2）流和富H 2 S蒸气流 系统，其包括至少一个压缩机和/或热交换器以及气液分离器容器和H 2 S回收单元。 在实例中，该方法包括以下步骤：（a）将气流送入压缩和/或冷却系统，使气流中的二氧化碳冷凝形成两相流; （b）将两相流直接或间接地通入气液分离器容器，并从分离器容器中取出富含氢的蒸气流和含有溶解的H 2 S杂质的液体CO 2流; （c）将含有溶解的H 2 S杂质的液体CO 2物流通入包含蒸发器/冷凝器的H2S回收单元，其中CO 2和H 2 S被蒸发，其中H2S和CO2分离出的H2S吸收器，其中两相流通过 分离器的压力为80巴至400巴。 在一些应用中，H2S回收单元的压力至少为30巴。 在优选的实施例中，通过在CO 2吸收剂中最优选以其中H 2 S和CO 2吸收剂共享相同（优选甲醇）溶剂的构型溶剂萃取，在任选的步骤中除去富氢蒸汽流中的残余CO 2。
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公开(公告)号：US20120297822A1
公开(公告)日：2012-11-29
申请号：US13575968
申请日：2011-01-21
申请人： Michael Edward Bailey , Stefano Consonni , Jonathan Alec Forsyth , Manuele Gatti , Emanuele Martelli , Yasushi Mori , Kazumasa Ogura , Federico Vigano
发明人： Michael Edward Bailey , Stefano Consonni , Jonathan Alec Forsyth , Manuele Gatti , Emanuele Martelli , Yasushi Mori , Kazumasa Ogura , Federico Vigano
IPC分类号： F25J1/00
CPC分类号： C01B3/506 , C01B3/52 , C01B2203/0415 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0805 , C01B2203/0883 , C01B2203/146 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2205/40 , F25J2205/50 , F25J2215/04 , F25J2230/30 , F25J2240/30 , F25J2270/06 , Y02C10/12 , Y02P20/152
摘要： A process for separating sour shifted synthesis gas feedstock into liquid carbon dioxide, a gaseous hydrogen-containing gas and separated sulphur-containing components includes the steps of a. scrubbing the sour shifted gas elevated pressure with an alcohol solvent in a first scrubber and separately recovering an alcohol stream containing the sulphur-containing components and a sweet shifted gas; b. thereafter cooling the sweet shifted gas to a temperature and elevated pressure at which the carbon dioxide contained therein condenses and a two-phase gas- liquid mixture is formed; c. separating the two-phase mixture of stage (b) into separate liquid carbon dioxide and gaseous hydrogen-containing fractions in a fractionation unit; d. extracting residual carbon dioxide from the separated gaseous hydrogen-containing fraction by scrubbing the gaseous hydrogen-containing fraction at elevated pressure with an alcohol solvent in a second scrubber and recovering an alcohol stream containing carbon dioxide; e. feeding the alcohol stream containing carbon dioxide produced in step (d) to the first scrubber and f. warming and expanding the scrubber gaseous hydrogen-containing fraction using at least one heat exchanger to exchange heat with the mixture of step (b) and at least one turbo-expander capable of recovering mechanical work. The process described may be used in for example Integrated Gasification Combined Cycles (IGCC) where the source of fuel is coal or low grade carbon sources such as lignite, tar sands and shale oil.
摘要翻译： 用于将酸移位的合成气原料分离成液态二氧化碳，含气态气体和分离的含硫组分的方法包括以下步骤：a。 在第一洗涤器中用醇溶剂洗涤酸转移气体升高的压力，并单独回收含有含硫成分和甜味转换气体的醇流; b。 然后将甜味转移气体冷却至其中所含的二氧化碳冷凝的温度和升高的压力，并形成两相气液混合物; C。 将分段（b）的两相混合物分离成分离液体二氧化碳和气态含氢馏分; d。 通过在第二洗涤器中用醇溶剂在升高的压力下洗涤含气态气体馏分并回收含二氧化碳的醇流，从分离的含气态氢气馏分中提取残余二氧化碳; e。 将步骤（d）中产生的含有二氧化碳的醇流送入第一洗涤器，f。 使用至少一个热交换器使洗涤器气态含氢馏分升温和膨胀，以与步骤（b）的混合物和能够回收机械功的至少一个涡轮膨胀机交换热量。 所描述的方法可用于例如集成气化组合循环（IGCC），其中燃料源为煤或低等级碳源，例如褐煤，焦油砂和页岩油。
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公开(公告)号：US20090123364A1
公开(公告)日：2009-05-14
申请号：US12227061
申请日：2007-04-26
IPC分类号： C01B3/26
CPC分类号： C01B3/34 , C01B3/501 , C01B2203/0227 , C01B2203/025 , C01B2203/0283 , C01B2203/041 , C01B2203/047 , C01B2203/0475 , C01B2203/0495 , C01B2203/84 , C01B2203/86 , Y02P30/30
摘要： A process is described for the production of hydrogen from a hydrogen-containing compound within a reactor comprising a first and a second zone separated by a selective hydrogen-permeable membrane, in which a hydrogen-producing reaction occurs in the first zone and hydrogen permeates from the first zone to the second zone through the selective hydrogen-permeable membrane, in which a sweep gas stream is combined with permeated hydrogen in the second zone, wherein the partial pressure in the second zone of the reactor is maintained at a level of greater than 30 psi (207 kPa).
摘要翻译： 描述了一种用于在反应器内由含氢化合物生产氢的方法，该反应器包括由选择性氢可渗透膜隔开的第一和第二区域，其中在第一区域发生产氢反应，氢气从 通过选择性氢可渗透膜到第二区域的第一区域，其中吹扫气流与第二区域中的渗透氢合并，其中反应器第二区域中的分压保持在大于 30 psi（207 kPa）。
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公开(公告)号：US09212061B2
公开(公告)日：2015-12-15
申请号：US13575968
申请日：2011-01-21
申请人： Michael Edward Bailey , Stefano Consonni , Jonathan Alec Forsyth , Manuele Gatti , Emanuele Martelli , Yasushi Mori , Kazumasa Ogura , Federico Vigano
发明人： Michael Edward Bailey , Stefano Consonni , Jonathan Alec Forsyth , Manuele Gatti , Emanuele Martelli , Yasushi Mori , Kazumasa Ogura , Federico Vigano
CPC分类号： C01B3/506 , C01B3/52 , C01B2203/0415 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0805 , C01B2203/0883 , C01B2203/146 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J2205/40 , F25J2205/50 , F25J2215/04 , F25J2230/30 , F25J2240/30 , F25J2270/06 , Y02C10/12 , Y02P20/152
摘要： A process for separating sour shifted synthesis gas feedstock into liquid carbon dioxide, a gaseous hydrogen-containing gas and separated sulphur-containing components includes the steps of a. scrubbing the sour shifted gas elevated pressure with an alcohol solvent in a first scrubber and separately recovering an alcohol stream containing the sulphur-containing components and a sweet shifted gas; b. thereafter cooling the sweet shifted gas to a temperature and elevated pressure at which the carbon dioxide contained therein condenses and a two-phase gas-liquid mixture is formed; c. separating the two-phase mixture of stage (b) into separate liquid carbon dioxide and gaseous hydrogen-containing fractions in a fractionation unit; d. extracting residual carbon dioxide from the separated gaseous hydrogen-containing fraction by scrubbing the gaseous hydrogen-containing fraction at elevated pressure with an alcohol solvent in a second scrubber and recovering an alcohol stream containing carbon dioxide; e. feeding the alcohol stream containing carbon dioxide produced in step (d) to the first scrubber and f. warming and expanding the scrubber gaseous hydrogen-containing fraction using at least one heat exchanger to exchange heat with the mixture of step (b) and at least one turbo-expander capable of recovering mechanical work. The process described may be used in for example Integrated Gasification Combined Cycles (IGCC) where the source of fuel is coal or low grade carbon sources such as lignite, tar sands and shale oil.
摘要翻译： 用于将酸移位的合成气原料分离成液态二氧化碳，含气态气体和分离的含硫组分的方法包括以下步骤：a。 在第一洗涤器中用醇溶剂洗涤酸转移气体升高的压力，并单独回收含有含硫成分和甜味转换气体的醇流; b。 然后将甜味转移气体冷却至其中所含的二氧化碳冷凝的温度和升高的压力，并形成两相气液混合物; C。 将分段（b）的两相混合物分离成分离液体二氧化碳和气态含氢馏分; d。 通过在第二洗涤器中用醇溶剂在升高的压力下洗涤含气态气体馏分并回收含二氧化碳的醇流，从分离的含气态氢气馏分中提取残余二氧化碳; e。 将步骤（d）中产生的含有二氧化碳的醇流送入第一洗涤器，f。 使用至少一个热交换器使洗涤器气态含氢馏分升温和膨胀，以与步骤（b）的混合物和能够回收机械功的至少一个涡轮膨胀机交换热量。 所描述的方法可用于例如集成气化组合循环（IGCC），其中燃料源为煤或低等级碳源，例如褐煤，焦油砂和页岩油。
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公开(公告)号：US20120118010A1
公开(公告)日：2012-05-17
申请号：US13386692
申请日：2010-07-23
IPC分类号： F25J3/08
CPC分类号： C10K1/005 , B01D53/002 , B01D53/1462 , B01D53/1468 , B01D2257/304 , B01D2257/504 , C01B3/16 , C01B3/34 , C01B3/506 , C01B3/52 , C01B17/167 , C01B2203/0283 , C01B2203/0415 , C01B2203/046 , C01B2203/0475 , C01B2203/0485 , C01B2203/0495 , C01B2203/0883 , C01B2203/0894 , C01B2203/84 , C10K1/004 , C10K1/165 , F25J3/0625 , F25J3/0655 , F25J3/067 , F25J3/0675 , F25J2205/40 , F25J2205/50 , F25J2210/04 , F25J2220/82 , F25J2220/84 , F25J2230/30 , F25J2245/02 , F25J2270/06 , F25J2270/20 , Y02C10/06 , Y02C10/12 , Y02P20/152
摘要： A process is described for separating a gas stream containing hydrogen sulfide (H2S) impurities into a hydrogen (H2) rich vapour stream, a carbon dioxide (CO2) stream and an H2S rich vapour stream in an apparatus that comprises a compression and/or cooling system comprising at least one compressor and/or heat exchanger and a gas-liquid separator vessel, and an H2S recovery unit. In examples, the process comprises the steps of: (a) feeding the gas stream to the compression and/or cooling system such that carbon dioxide in the gas stream condenses to form a two-phase stream; (b) passing the two-phase stream either directly or indirectly to a gas-liquid separator vessel and withdrawing a hydrogen rich vapour stream and a liquid CO2 stream containing dissolved H2S impurities from the separator vessel; (c) passing the liquid CO2 stream containing dissolved H2S impurities to an H2S recovery unit comprising an evaporator/condenser in which the CO2 and H2S are vaporised and an H2S absorber in which the gaseous H2S and CO2 are separated, wherein the two phase stream passed to the separator is at a pressure of from 80 bar to 400 bar. In some applications, the pressure of the H2S recovery unit is at least 30 bar. In a preferred example, residual CO2 in the hydrogen rich vapour stream is removed in an optional step by solvent extraction in a CO2 absorber most preferably in a configuration where the H2S and CO2 absorbers share the same (preferably methanol) solvent.
摘要翻译： 描述了一种方法，用于在包含压缩和/或冷却的装置中将含有硫化氢（H 2 S）杂质的气流分离成富氢的（H 2）蒸气流，二氧化碳（CO 2）流和富H 2 S蒸气流 系统，其包括至少一个压缩机和/或热交换器以及气液分离器容器和H 2 S回收单元。 在实例中，该方法包括以下步骤：（a）将气流送入压缩和/或冷却系统，使气流中的二氧化碳冷凝形成两相流; （b）将两相流直接或间接地通入气液分离器容器，并从分离器容器中取出富含氢的蒸气流和含有溶解的H 2 S杂质的液体CO 2流; （c）将含有溶解的H 2 S杂质的液体CO 2物流通入包含蒸发器/冷凝器的H 2 S回收单元，其中CO 2和H 2 S被蒸发，其中H2S和CO 2被分离的H2S吸收器，其中两相流通过 分离器的压力为80巴至400巴。 在一些应用中，H2S回收单元的压力至少为30巴。 在优选的实施例中，通过在CO 2吸收剂中最优选以其中H 2 S和CO 2吸收剂共享相同（优选甲醇）溶剂的构型溶剂萃取，在任选的步骤中除去富氢蒸汽流中的残余CO 2。
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