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公开(公告)号：US5538535A
公开(公告)日：1996-07-23
申请号：US395046
申请日：1995-02-27
CPC分类号： B01D53/229 , B01D53/22 , B01D2257/20
摘要： A membrane process for separating chlorine from chlorine-containing gas streams is disclosed. The process employs a permselective membrane that is selective to chlorine and is stable in the long-term presence of chlorine. The process can be used to treat tail-gas from chlor-alkali plants, for example.
摘要翻译： 公开了一种用于从含氯气流中分离氯的膜方法。 该方法采用对氯有选择性的选择性选择性膜，并且在氯的长期存在下是稳定的。 该方法可用于处理来自氯碱植物的尾气。
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公开(公告)号：US5401300A
公开(公告)日：1995-03-28
申请号：US143283
申请日：1993-10-25
CPC分类号： B01D53/228 , B01D53/22 , B01D53/268 , B01D2257/304
摘要： Improved membranes and improved membrane processes for treating gas streams containing hydrogen sulfide and methane, plus water vapor, carbon dioxide or both. The processes rely on the availability of two membrane types, one of which has a high hydrogen sulfide/methane selectivity and a high water vapor/methane selectivity, when measured with multicomponent gas mixtures at high pressures. Based on the different permeation properties of the two membrane types, optimized separation processes can be designed. In favorable cases, the processes can simultaneously dehydrate the gas stream and remove the hydrogen sulfide to very low levels.
摘要翻译： 改进的膜和改进的膜方法，用于处理含有硫化氢和甲烷，加上水蒸气，二氧化碳或两者的气流。 这些方法依赖于两种膜类型的可用性，其中之一具有高的硫化氢/甲烷选择性和高水蒸气/甲烷选择性，当在高压下用多组分气体混合物测量时。 基于两种膜类型的不同渗透性能，可以设计优化的分离过程。 在有利的情况下，该方法可以同时使气流脱水并将硫化氢除去至非常低的水平。
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公开(公告)号：US6159272A
公开(公告)日：2000-12-12
申请号：US316507
申请日：1999-05-21
CPC分类号： B01D53/002 , B01D53/229 , C01B3/501 , C01B3/506 , C01B2203/041 , C01B2203/046 , C01B2203/048 , C01B2203/0485 , C01B2203/0495
摘要： A treatment process for a hydrogen-containing off-gas stream from a refinery, petrochemical plant or the like. The process includes three separation steps: condensation, membrane separation and hydrocarbon fraction separation. The membrane separation step is characterized in that it is carried out under conditions at which the membrane exhibits a selectivity in favor of methane over hydrogen of at least about 2.5.
摘要翻译： 来自炼油厂，石油化工厂等的含氢废气流的处理方法。 该方法包括三个分离步骤：冷凝，膜分离和烃馏分分离。 膜分离步骤的特征在于其在膜显示有利于甲烷的氢气选择性至少约2.5的条件下进行。
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4.发明授权Process, including PSA and membrane separation, for separating hydrogen from hydrocarbons 失效用于从氢气中分离氢气的方法，包括PSA和膜分离公开(公告)号：US06183628B2
公开(公告)日：2001-02-06
申请号：US09316498
申请日：1999-05-21
IPC分类号： C10G900
CPC分类号： C10G70/04 , B01D53/229 , B01D2256/24 , B01D2257/108 , C10G49/007
摘要： An improved process for separating hydrogen from hydrocarbons. The process includes a pressure swing adsorption step, a compression/cooling step and a membrane separation step. The membrane step relies on achieving a methane/hydrogen selectivity of at least about 2.5 under the conditions of the process.
摘要翻译： 一种从烃中分离氢气的改进方法。 该方法包括变压吸附步骤，压缩/冷却步骤和膜分离步骤。 膜步骤依赖于在该方法的条件下达到至少约2.5的甲烷/氢选择性。
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5.发明授权Process, including membrane separation, for separating hydrogen from hydrocarbons 失效包括膜分离的方法，用于从烃中分离氢公开(公告)号：US06264828B1
公开(公告)日：2001-07-24
申请号：US09317106
申请日：1999-05-21
IPC分类号： C10G900
CPC分类号： C10G49/007 , C10G49/22
摘要： Processes for providing improved methane removal and hydrogen reuse in reactors, particularly in refineries and petrochemical plants. The improved methane removal is achieved by selective purging, by passing gases in the reactor recycle loop across membranes selective in favor of methane over hydrogen, and capable of exhibiting a methane/hydrogen selectivity of at least about 2.5 under the process conditions.
摘要翻译： 在反应堆，特别是炼油厂和石油化工厂中提供改进的甲烷去除和氢再利用的方法。 改进的甲烷去除通过选择性吹扫来实现，其通过使反应器循环回路中的气体通过选择性地有利于甲烷而不是氢气的膜，并且能够在工艺条件下表现出至少约2.5的甲烷/氢气选择性。
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公开(公告)号：US5669958A
公开(公告)日：1997-09-23
申请号：US608743
申请日：1996-02-29
IPC分类号： B01D53/00 , B01D53/22 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/02 , F25J3/06 , B01D53/047
CPC分类号： B01D53/228 , B01D53/002 , B01D53/22 , B01D53/226 , B01D53/229 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J3/0257 , F25J3/061 , F25J3/0635 , F25J3/0645 , F25J2205/40 , F25J2205/80 , F25J2240/12 , F25J2270/04
摘要： A membrane separation process for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. We have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen.
摘要翻译： 一种用于处理含有甲烷和氮气的气流的膜分离方法，例如天然气。 分离过程通过优先渗透甲烷和排除氮气而起作用。 我们发现，该方法能够满足氮气的天然气管道规格，具有可接受的小的甲烷损失，只要膜可以显示出约4,5或更高的甲烷/氮选择性。 这种选择性可以通过一些橡胶状和超级玻璃膜在低温下实现。 该方法也可用于从氮气中分离乙烯。
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公开(公告)号：US5879431A
公开(公告)日：1999-03-09
申请号：US907187
申请日：1997-08-06
CPC分类号： B01D53/228 , B01D53/002 , B01D53/22 , B01D53/226 , B01D53/229 , B01D69/02 , B01D71/24 , B01D71/44 , B01D71/70 , F25J3/0209 , F25J3/0233 , F25J3/0242 , F25J3/0257 , F25J3/061 , F25J3/0635 , F25J3/0645 , F25J2205/40 , F25J2205/80 , F25J2240/12 , F25J2270/04
摘要： A membrane separation process for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. We have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen.
摘要翻译： 一种用于处理含有甲烷和氮气的气流的膜分离方法，例如天然气。 分离过程通过优先渗透甲烷和排除氮气而起作用。 我们发现，该方法能够满足氮气的天然气管道规格，具有可接受的小的甲烷损失，只要膜可以显示出约4,5或更高的甲烷/氮选择性。 这种选择性可以通过一些橡胶状和超级玻璃膜在低温下实现。 该方法也可用于从氮气中分离乙烯。
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8.发明授权
公开(公告)号：US5755855A
公开(公告)日：1998-05-26
申请号：US780868
申请日：1997-01-24
CPC分类号： C01B7/075 , B01D53/229 , C01B7/0743 , B01D2257/2025
摘要： A process for separating two low-boiling components of a gas-phase mixture. The invention involves three separation steps: condensation, flash evaporation and membrane separation. The steps are integrated together in such a way as to provide a good separation between the components, and to avoid creation of secondary streams that need additional treatment. The invention is particularly useful for separation of low molecular weight organic compounds from other gases.
摘要翻译： 分离气相混合物的两种低沸点成分的方法。 本发明涉及三个分离步骤：冷凝，闪蒸和膜分离。 这些步骤以这样的方式集成在一起，以便在组件之间提供良好的分离，并且避免产生需要额外处理的二次流。 本发明特别适用于从其他气体中分离低分子量有机化合物。
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公开(公告)号：US20150059577A1
公开(公告)日：2015-03-05
申请号：US14538340
申请日：2014-11-11
CPC分类号： B01D63/12 , B01D46/0004 , B01D46/0019 , B01D46/003 , B01D46/24 , B01D50/00 , B01D53/22 , B01D53/229 , B01D63/10 , B01D65/025 , B01D2256/245 , B01D2257/108 , B01D2257/304 , B01D2257/504 , B01D2257/7022 , B01D2257/80 , B01D2311/04 , B01D2313/13 , B01D2313/20 , B01D2313/21 , B01D2313/90 , B01D2317/04 , B01D2319/04 , C10L3/101 , Y02C10/10 , B01D2311/2649
摘要： A membrane separation assembly that includes an integrated filter element and at least one membrane module housed within a first vessel and a second vessel containing at least one membrane module, which is stacked or aligned adjacent to the first vessel. The first vessel is configured to allow liquids to be trapped and removed from the assembly, and gases to flow to and through the membrane modules of the first vessel and the membrane modules of the second vessel, which are ultimately withdrawn from the assembly. The assembly is useful in the conditioning of fuel gas to separate methane from C2+ hydrocarbons.
摘要翻译： 一种膜分离组件，其包括集成的过滤元件和容纳在第一容器内的至少一个膜组件和包含至少一个膜组件的第二容器，所述膜组件与第一容器相邻地堆叠或排列。 第一容器构造成允许液体从组件中被捕获和移除，并且气体流入并通过第一容器的膜组件和第二容器的膜组件，其最终从组件中取出。 该组件可用于调节燃料气体以从C2 +烃分离甲烷。
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公开(公告)号：US08906143B2
公开(公告)日：2014-12-09
申请号：US13224891
申请日：2011-09-02
CPC分类号： B01D46/0004 , B01D46/0019 , B01D46/003 , B01D46/24 , B01D50/00 , B01D53/22 , B01D53/229 , B01D63/10 , B01D65/025 , B01D2256/245 , B01D2257/108 , B01D2257/304 , B01D2257/504 , B01D2257/7022 , B01D2257/80 , B01D2311/04 , B01D2313/20 , B01D2313/90 , C10L3/101 , Y02C10/10 , B01D2311/2649
摘要： Disclosed herein is a membrane separation apparatus that includes an integrated filter element and a membrane element housed within a single vessel. The vessel is configured to allow liquids to be trapped and removed from the vessel, and gases to flow to and through the membrane element. The apparatus is useful in the conditioning of fuel gas to separate methane from C2+ hydrocarbons.
摘要翻译： 本文公开了一种膜分离装置，其包括集成的过滤元件和容纳在单个容器内的膜元件。 容器构造成允许液体被捕获并从容器中移出，并且气体流入并穿过膜元件。 该装置可用于调节燃料气体以从C2 +烃分离甲烷。
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