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公开(公告)号：US5779763A
公开(公告)日：1998-07-14
申请号：US813520
申请日：1997-03-07
CPC分类号： B01D53/002 , B01D53/229 , B01D2257/2066 , Y02C20/20 , Y02C20/30
摘要： A process for separating perfluoro compound gas or vapor from another gas, typically nitrogen, in a gas mixture. The process involves a combination of membrane separation and condensation, and is particularly useful in the semiconductor industry, for treating exhaust gases from cleaning of chemical vapor deposition chambers. Operation of the condensation step at temperatures no lower than about -30.degree. C. reduces the need for refrigeration equipment and controls the amount of gas dissolved in the recovered perfluoro compound.
摘要翻译： 从气体混合物中的另一种气体（通常为氮）分离全氟化合物气体或蒸气的方法。 该方法涉及膜分离和冷凝的组合，并且在半导体工业中特别有用，用于处理来自清洁化学气相沉积室的废气。 在不低于约-30℃的温度下进行冷凝步骤的操作减少了对制冷设备的需要并控制了溶解在回收的全氟化合物中的气体的量。
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公开(公告)号：US06565626B1
公开(公告)日：2003-05-20
申请号：US10035404
申请日：2001-12-28
申请人： Richard W. Baker , Johannes G. Wijmans , Zhenjie He , Ingo Pinnau
发明人： Richard W. Baker , Johannes G. Wijmans , Zhenjie He , Ingo Pinnau
IPC分类号： B01D5322
CPC分类号： C10L3/104 , B01D53/226 , C10L3/103 , C10L3/105 , C10L3/106
摘要： A process for treating natural gas or other methane-rich gas to remove excess nitrogen and carbon dioxide simultaneously. The invention relies on membrane separation using nitrogen/methane and carbon dioxide/methane selective membranes. The gas can typically be brought to pipeline specification for both components, without requiring the use of amine scrubbing or other acid gas removal technique. Where water vapor or hydrogen sulfide is present in the raw gas, these contaminants may also be removed to meet pipeline specification in a single operation.
摘要翻译： 一种处理天然气或其他富含甲烷的气体以同时去除过量的氮和二氧化碳的方法。 本发明依赖于使用氮/甲烷和二氧化碳/甲烷选择性膜的膜分离。 通常可以将气体用于两种组分的管道规格，而不需要使用胺洗涤或其它酸性气体去除技术。 在原始气体中存在水蒸气或硫化氢的情况下，也可以在单次操作中除去这些污染物以满足管道规格。
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公开(公告)号：US06572679B2
公开(公告)日：2003-06-03
申请号：US10105861
申请日：2002-03-25
申请人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Andre R. Da Costa , Ramin Daniels , Karl D. Amo , Johannes G. Wijmans
发明人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Andre R. Da Costa , Ramin Daniels , Karl D. Amo , Johannes G. Wijmans
IPC分类号： B01D5322
CPC分类号： B01D53/228 , B01D69/02 , B01D71/32 , B01D71/44 , B01D71/52 , B01D71/64 , C01B3/501 , C01B2203/147
摘要： A process for treating a gas mixture containing at least an organic compound gas or vapor and a second gas, such as natural gas, refinery off-gas or air. The process uses two sequential membrane separation steps, one using membrane selective for the organic compound over the second gas, the other selective for the second gas over the organic vapor. The second-gas-selective membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons. The membrane steps can be combined in either order.
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公开(公告)号：US06544316B2
公开(公告)日：2003-04-08
申请号：US10033211
申请日：2001-12-28
申请人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
发明人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
IPC分类号： B01D5322
摘要： A process for separating hydrogen from a multicomponent gas mixture containing hydrogen and a hydrocarbon, using gas-separation membranes selective for hydrogen over the hydrocarbon. The membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons.
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5.发明授权Natural gas separation using nitrogen-selective membranes of modest selectivity 有权使用氮选择性膜的天然气分离具有适度的选择性公开(公告)号：US06572678B1
公开(公告)日：2003-06-03
申请号：US10033680
申请日：2001-12-28
IPC分类号： B01D5322
CPC分类号： C10L3/102 , B01D53/226 , C07C7/144 , C10L3/10 , C07C9/04
摘要： A process for treating natural gas or other methane-rich gas to remove excess nitrogen and optionally excess carbon dioxide, water vapor or hydrogen sulfide. The invention relies on gas separation by membranes, using nitrogen/methane selective membranes. The membranes are characterized by having the capability to exhibit a nitrogen/methane selectivity between about 2 and 5 at a temperature higher than about −25° C. The gas may be brought to pipeline specification for nitrogen, and acid gases if present, without requiring the use of amine scrubbing or other acid gas removal technique.
摘要翻译： 用于处理天然气或其它富含甲烷的气体以除去过量的氮气和任选地过量的二氧化碳，水蒸气或硫化氢的方法。 本发明依赖于使用氮/甲烷选择性膜的膜的气体分离。 膜的特征在于在高于约-25℃的温度下具有在约2和5之间显示氮/甲烷选择性的能力。可以将气体设置为管道规格的氮气和酸性气体（如果存在），而不需要 使用胺洗涤或其他酸性气体去除技术。
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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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7.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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8.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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公开(公告)号：US06579341B2
公开(公告)日：2003-06-17
申请号：US10100459
申请日：2002-03-18
申请人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
发明人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
IPC分类号： B01D5322
CPC分类号： B01D53/228 , B01D69/02 , B01D71/32 , B01D71/44 , B01D71/52 , B01D71/64 , Y02E50/346
摘要： A process for separating nitrogen from a multicomponent gas mixture containing nitrogen and a hydrocarbon, such as natural gas or associated gas, using gas-separation membranes selective for nitrogen over the hydrocarbon. The membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons.
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公开(公告)号：US06572680B2
公开(公告)日：2003-06-03
申请号：US10072526
申请日：2002-02-05
申请人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
发明人： Richard W. Baker , Ingo Pinnau , Zhenjie He , Karl D. Amo , Andre R. Da Costa , Ramin Daniels
IPC分类号： B01D5322
摘要： A process for separating carbon dioxide from a multicomponent gas mixture containing carbon dioxide and a hydrocarbon, such as natural gas or associated gas, using gas-separation membranes selective for carbon dioxide over the hydrocarbon. The membranes use a selective layer made from a polymer having repeating units of a fluorinated polymer, and demonstrate good resistance to plasticization by the organic components in the gas mixture under treatment, and good recovery after exposure to liquid aromatic hydrocarbons.
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