-
61.发明授权Separation of organic mixtures using gas separation or pervaporation and dephlegmation 有权使用气体分离或渗透蒸发和分馏分离有机混合物公开(公告)号：US06899743B2
公开(公告)日：2005-05-31
申请号：US10459639
申请日：2003-06-11
IPC分类号： B01D53/22
CPC分类号： B01D61/362 , B01D3/145 , B01D53/229 , B01D71/32
摘要： A process for treating mixtures of organic components, including azeotropic mixtures. The process includes a gas- or liquid-phase membrane separation step in conjunction with a dephlegmation step to treat at least a portion of the permeate vapor from the pervaporation step. The process yields a membrane residue stream, a stream enriched in the more volatile component as the overhead stream from the dephlegmator and a condensate stream enriched in the less volatile component as a bottoms stream from the dephlegmator. Any of these may be the principal product of the process.
摘要翻译： 一种处理有机组分混合物的方法，包括共沸混合物。 该方法包括气相或液相膜分离步骤以及分馏步骤，以从渗透蒸发步骤处理至少一部分渗透物蒸气。 该方法产生膜残留物流，富含较高挥发性组分的物流作为来自分馏塔的塔顶馏出物和富集较不易挥发组分的冷凝物流，作为来自分馏塔的底部物流。 任何这些可能是该过程的主要产物。
-
公开(公告)号：US06592749B1
公开(公告)日：2003-07-15
申请号：US09718999
申请日：2000-11-22
IPC分类号： C07C7144
CPC分类号： C10G49/007 , B01D53/047 , B01D53/229 , B01D2256/24 , C10G70/04
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 uses a rubbery polymeric membrane selective for all C1-C6 hydrocarbons over hydrogen. The process can produce three products: a high-purity hydrogen stream, an LPG stream and a light hydrocarbon fuel gas stream.
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。 膜步骤使用对氢气对所有C1-C6烃有选择性的橡胶状聚合物膜。 该方法可以生产三种产品：高纯度氢气流，LPG流和轻烃燃料气流。
-
63.发明授权公开(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.
-
公开(公告)号：US06525236B1
公开(公告)日：2003-02-25
申请号：US10144363
申请日：2002-05-13
IPC分类号： C07C7144
摘要： A process for manufacturing cumene by reacting propylene with benzene, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30%, 40% or more propane, which is vented from the process, and a permeate stream containing 95% or less propylene, which is recirculated to the reactor.
摘要翻译： 一种通过使丙烯与苯反应制造枯烯的方法，包括处理来自反应区的排出物流，回收丙烯以返回反应器。 该方法包括使用气体分离膜在反应器排气流中从丙烷分离丙烯。 膜分离步骤导致通常含有多达30％，40％或更多的丙烷的残余物流，其从该方法排出，以及含有95％或更少丙烯的渗透物流，其被再循环到反应器中。
-
公开(公告)号：US06414202B1
公开(公告)日：2002-07-02
申请号：US09651483
申请日：2000-08-30
IPC分类号： C07C2904
摘要： A process for manufacturing isopropyl alcohol by reacting propylene with a reagent, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30% propane or more, which is vented from the process, and a permeate stream typically containing 95% or less propylene, which is recirculated to the reactor.
摘要翻译： 丙烯与试剂反应生产异丙醇的方法，包括处理来自反应区的排出物流，回收丙烯以返回反应器。 该方法包括使用气体分离膜在反应器排气流中从丙烷分离丙烯。 膜分离步骤导致通常含有多达30％丙烷或更多的残余物流，其从该方法排出，并且通常含有95％或更少丙烯的渗透物流再循环到反应器中。
-
66.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。
-
公开(公告)号：US06179996B2
公开(公告)日：2001-01-30
申请号：US09316508
申请日：1999-05-21
IPC分类号： C10G4922
CPC分类号： C10G49/007 , C10G49/22
摘要： Processes and apparatus for providing improved contaminant removal and hydrogen recovery in hydrogenation reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the hydrogenation reactor recycle loop or purge stream across membranes selective in favor of the contaminant over hydrogen.
摘要翻译： 在氢化反应器，特别是在炼油厂和石油化工厂中提供改进的污染物去除和氢回收的方法和设备。 改进的污染物去除通过选择性吹扫来实现，通过在氢化反应器循环回路中通过气体或通过选择性的有利于污染物的膜的清洗流。
-
公开(公告)号：US06171472B2
公开(公告)日：2001-01-09
申请号：US09083660
申请日：1998-05-22
IPC分类号： C10G4500
CPC分类号： C10G49/007 , C10G49/22
摘要： Processes and apparatus for providing improved contaminant removal and hydrogen reuse in reactors, particularly in refineries and petrochemical plants. The improved contaminant removal is achieved by selective purging, by passing gases in the reactor recycle loop across membranes selective in favor of the contaminant over hydrogen.
摘要翻译： 在反应堆，特别是在炼油厂和石油化工厂，提供改进的污染物去除和氢再利用的方法和设备。 通过选择性吹扫，通过使反应器循环回路中的气体通过有选择地优于氢的污染物的膜选择性地实现改进的污染物去除。
-
69.发明授权
公开(公告)号：US6018060A
公开(公告)日：2000-01-25
申请号：US166342
申请日：1998-10-05
IPC分类号： B01D53/22 , B01J19/00 , B01J19/24 , C07D301/08 , C07D303/00 , C07C45/28 , C07C45/34
CPC分类号： B01D53/22 , B01J19/2465 , B01J19/2475 , C07D301/08 , B01J2219/00051 , B01J2219/00085 , B01J2219/00103 , Y02C10/10
摘要： A process and apparatus for manufacture of organic products, particularly chemical intermediates, by oxidation of organic feedstocks. A membrane unit containing a membrane selectively permeable to the organic over argon is used to recover the feedstock from the argon purge stream.
摘要翻译： 通过有机原料的氧化制造有机产品，特别是化学中间体的方法和装置。 使用含有对氩气有选择地可渗透的膜的膜单元从氩吹扫流中回收原料。
-
公开(公告)号：US5769926A
公开(公告)日：1998-06-23
申请号：US789371
申请日：1997-01-24
CPC分类号： B01D53/002 , B01D53/229 , B01D2257/702
摘要： An improved, membrane-based method of treating gas evolved during gas/oil separation, to separate the very light hydrocarbon gases, methane in particular, from the heavier hydrocarbons. The membrane acts as a demethanizer and establishes a vapor/liquid equilibrium during phase separation that is different than would otherwise obtain. This can increase oil production and reduce the weight of C.sub.4+ hydrocarbons lost in the associated gas.
摘要翻译： 一种改进的基于膜的方法，用于处理在气/油分离过程中产生的气体，以将特别轻的烃气体，特别是甲烷与较重的烃分离。 该膜用作脱甲烷塔，并且在相分离期间建立不同于否则获得的蒸气/液体平衡。 这可以增加石油产量，并减少相关天然气中损失的C4 +烃的重量。
-
-
-
-
-
-
-
-
-
搜索结果
149 条记录 (耗时 0.053 秒)
