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公开(公告)号：US5675052A
公开(公告)日：1997-10-07
申请号：US528959
申请日：1995-09-15
摘要： A hydrocarbon stream is cracked to produce a hot gaseous stream which is compressed and cooled to condense almost all of the hydrocarbons contained in the stream. A noncondensed stream remaining after the condensation step, comprised predominantly of hydrogen and C.sub.1 to C.sub.3 hydrocarbons, is subjected to pressure swing adsorption or temperature swing adsorption at an adsorption temperature of about 0.degree. to about 250.degree. C. in a bed of adsorbent which selectively adsorbs ethene and propene, thereby adsorbing substantially all of the ethene and propene from the gas stream. The ethene and/or propene is recovered upon bed regeneration. Higher alkenes are separated from alkanes by various methods.
摘要翻译： 烃流被裂化以产生热气流，其被压缩和冷却以使包含在流中的几乎所有的烃都冷凝。 在主要由氢和C1至C3烃组成的缩合步骤之后残留的非冷凝流在吸附床中在约0至约250℃的吸附温度下进行变压吸附或变温吸附，其选择性 吸附乙烯和丙烯，从而从气流中吸收基本上所有的乙烯和丙烯。 在床再生时回收乙烯和/或丙烯。 高级烯烃通过各种方法与烷烃分离。
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公开(公告)号：US5322927A
公开(公告)日：1994-06-21
申请号：US939276
申请日：1992-09-02
摘要： Polyolefins are produced by a process which includes the steps of: polymerizing an olefin in a reaction zone; removing unreacted olefin from the polymer in a flash chamber and recycling the unreacted olefin to the reaction zone; stripping unreacted olefin from the polymer by passing a stripping gas through the polymer in a stripping zone; passing the unreacted olefin from the stripping zone at superatmospheric pressure through an adsorbent which selectively adsorbs olefins; depressurizing the adsorbent to produce a substantially pure olefin and recycling the substantially pure olefin to the reaction zone; purging the adsorbent bed with a nonadsorbable gas to remove residual unreacted olefin from the adsorbent; and passing the purge gas-unreacted olefin to the stripping zone to be used as stripping gas.
摘要翻译： 聚烯烃通过包括以下步骤的方法制备：在反应区中聚合烯烃; 在闪蒸室中从聚合物中除去未反应的烯烃并将未反应的烯烃再循环到反应区; 通过使汽提气体通过汽提区中的聚合物，从聚合物中汽提未反应的烯烃; 在超大气压下将来自汽提区的未反应的烯烃通过选择性吸附烯烃的吸附剂; 使吸附剂减压以产生基本上纯的烯烃并将基本上纯的烯烃再循环到反应区; 用吸附剂净化吸附剂床以从吸附剂中除去残留的未反应烯烃; 并将吹扫气体 - 未反应的烯烃通入汽提区，以用作汽提气体。
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公开(公告)号：US5417742A
公开(公告)日：1995-05-23
申请号：US160999
申请日：1993-12-03
IPC分类号： B01D53/04 , B01D53/047 , C07C17/38
CPC分类号： C07C17/38 , B01D53/0462 , B01D53/047 , C07C17/389 , B01D2253/108 , B01D2253/30 , B01D2253/308 , B01D2257/2066 , B01D2259/4006 , B01D2259/40064 , Y02C20/30 , Y02P20/154 , Y02P20/155 , Y10S95/902 , Y10S95/903
摘要： Perfluorocarbons are recovered from gas streams by subjecting the gas stream to an adsorption process in a bed of one or more energetically homogeneous adsorbents such as silicon-rich adsorbents of the FAU structure, silicon-rich adsorbents of the BEA structure, silicon-rich adsorbents of the MOR structure. The adsorption process is preferably pressure swing adsorption or temperature swing adsorption.
摘要翻译： 通过使气流在一种或多种能量均匀的吸附剂的床中进行吸附过程，例如FAU结构的富硅吸附剂，BEA结构的富含硅吸附剂，富含硅的吸附剂的富含硅的吸附剂，从气流中回收全氟化碳 MOR结构。 吸附过程优选为变压吸附或变温吸附。
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公开(公告)号：US20060204415A1
公开(公告)日：2006-09-14
申请号：US11431796
申请日：2006-05-10
申请人： Weibin Jiang , Seungdoo Park , Mark Tomczak , Divyanshu Acharya , Satish Tamhankar , Ramakrishnan Ramachandran
发明人： Weibin Jiang , Seungdoo Park , Mark Tomczak , Divyanshu Acharya , Satish Tamhankar , Ramakrishnan Ramachandran
CPC分类号： C01B3/386 , C01B2203/0261 , C01B2203/043 , C01B2203/046 , C01B2203/047 , C01B2203/0877 , C01B2203/1023 , C01B2203/1041 , C01B2203/1047 , C01B2203/1052 , C01B2203/1064 , C01B2203/1082 , C01B2203/1241 , C01B2203/1276 , C01B2203/146 , C01B2203/148 , C01B2203/1604 , C01B2203/1609 , Y02P20/52
摘要： An improved process for the catalytic partial oxidation of hydrocarbons to produce hydrogen and carbon monoxide and less than ˜2% carbon dioxide is disclosed. The process further permits the reaction to be initiated at room temperature, and utilizes a metal catalyst deposited on a ceria-coated zirconia monolith support, which exhibits high conversions of hydrocarbons to synthesis gas (hydrogen and carbon monoxide).
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5.发明授权Sparger configuration for fluidized bed hydrocarbon partial oxidation reactors 失效用于流化床烃部分氧化反应器的分布器配置公开(公告)号：US06743400B2
公开(公告)日：2004-06-01
申请号：US09813508
申请日：2001-03-21
IPC分类号： B32B1902
CPC分类号： B01J8/1827 , B01J8/1818 , B01J2208/00548 , B01J2208/00628 , B01J2219/00024 , B01J2219/00259 , B01J2219/0286
摘要： The present invention is directed to a sparger system provided for appropriately feeding reactant streams to fluidized bed reactors of hydrocarbon partial oxidation processes that are retrofitted to selectively recover and recycle unreacted hydrocarbons. As a result of the sparger system, the reactor productivity and selectivity is enhanced while employing only two spargers. Also, the capital cost required for retrofitting existing sparging equipment is minimized, while at the same time, the desired fluidization and catalyst oxidation characteristics are achieved without the formation of flammable mixtures within the sparging system.
摘要翻译： 本发明涉及一种用于将反应物流适当地供给到烃部分氧化方法的流化床反应器的喷射器系统，其被改装以选择性地回收和再循环未反应的烃。 作为喷射器系统的结果，反应器的生产率和选择性得到提高，同时仅使用两个喷雾器。 此外，将现有喷射设备改造所需的资金成本降到最低，同时，在喷射系统内不形成易燃混合物的同时实现所需的流化和催化剂氧化特性。
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公开(公告)号：US5908804A
公开(公告)日：1999-06-01
申请号：US926330
申请日：1997-09-05
CPC分类号： C10G11/182 , B01D53/56 , Y02P30/446
摘要： Coke is burned in the regenerator vessel of an FCC complex with a combustion medium consisting of a diluent gas, such as air, enriched with oxygen, The regenerator is operated in partial combustion mode and excess oxygen is introduced into the combustion zone of the regenerator. Emission of nitrogen oxides to the atmosphere is reduced.
摘要翻译： 焦炭在FCC复合物的再生器容器中被燃烧介质组成，该燃烧介质由稀释气体（例如富氧的空气）组成。再生器以部分燃烧模式操作，并且过量的氧气被引入再生器的燃烧区。 氮氧化物向大气中的排放减少了。
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公开(公告)号：US5514204A
公开(公告)日：1996-05-07
申请号：US271592
申请日：1994-07-07
CPC分类号： C01B21/24 , B01D53/04 , B01D2253/104 , B01D2253/106 , B01D2253/108 , B01D2257/302 , B01D2257/404 , B01D2259/40084 , B01D2259/401 , B01D2259/402 , B01D2259/4143
摘要： A gas mixture comprised of nitric oxide and, optionally an inert gas, and containing small amounts of nitrogen dioxide, and perhaps moisture and sulfur dioxide, is purified by passing the gas stream through a bed of metal cation-free silica, alumina, or zeolite. The concentration of nitrogen dioxide, sulfur dioxide and moisture in the gas stream are significantly reduced as the gas mixture passes through the bed of adsorbent.
摘要翻译： 由一氧化氮和任选的惰性气体组成的含有少量二氧化氮和可能的水分和二氧化硫的气体混合物通过使气流通过无金属阳离子的二氧化硅，氧化铝或沸石床 。 当气体混合物通过吸附剂床时，气流中二氧化氮，二氧化硫和水分的浓度显着降低。
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公开(公告)号：US5262547A
公开(公告)日：1993-11-16
申请号：US772948
申请日：1991-10-15
IPC分类号： B01J23/889 , B01J19/00 , B01J27/10 , B01J27/122 , C07B33/00 , C07B61/00 , C07C9/06 , C07C9/10 , C07C9/12 , C07C11/04 , C07C11/06 , C07C11/09 , C07C15/04 , C07C15/08 , C07C15/24 , C07C17/10 , C07C17/156 , C07C21/06 , C07C27/14 , C07C45/34 , C07C45/35 , C07C47/06 , C07C47/07 , C07C47/22 , C07C51/215 , C07C51/25 , C07C51/31 , C07C57/05 , C07C59/74 , C07C67/36 , C07C253/24 , C07C253/26 , C07C255/08 , C07D225/08 , C07D301/04 , C07D301/08 , C07D303/04 , C07D307/60 , C07D307/89 , C07D307/33
CPC分类号： C07D301/08 , B01J19/002 , C07C17/156 , C07C253/24 , C07C253/26 , C07C45/34 , C07C45/35 , C07C51/215 , C07C51/252 , C07C51/313 , Y02P20/52
摘要： Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as a byproduct, is oxidized to carbon dioxide and part of the gaseous effluent, comprised mainly of carbon dioxide and unreacted hydrocarbon, is recycled to the reactor. Removal of carbon monoxide from the recycle stream reduces the hazard of a fire or explosion in the reactor or associated equipment. The use of carbon dioxide as the principal diluent increases heat removal from the reactor, thereby increasing the production capacity of the reactor.
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公开(公告)号：US4868330A
公开(公告)日：1989-09-19
申请号：US216037
申请日：1988-07-07
IPC分类号： B01J19/00 , C07C51/215 , C07C51/265
CPC分类号： C07C253/24 , B01J19/002 , C07C253/26 , C07C51/215 , C07C51/265 , Y02P20/52 , Y02P20/582
摘要： An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator provides recycle of a substantial portion of the unreacted hydrocarbon as well as for a controlled amount of a gaseous flame suppressor in the system. The gaseous flame suppressor comprises a substantially unreactive hydrocarbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation reactor is particularly advantageous from an economic view in combination with a pressure swing adsorption unit as the selective separator. The process is characterized by high selectivity to the formation of the product.
摘要翻译： 提供了一种改进的方法，用于在合适的催化剂存在下，通过与包含氧气，空气或富氧相对于空气和氨气体的含氧气体与含碳气体反应生产腈。 在该方法中，选择性分离器提供大部分未反应烃的再循环以及用于系统中受控量的气态阻燃剂的再循环。 当存在于氨氧化反应器的进料中时，气态阻燃剂包含含有1至5个碳原子的基本上不活泼的烃，二氧化碳和氮。 从作为选择性分离器的变压吸附装置的经济观点出发，使用空气或富氧空气进入氨氧化反应器的进料是特别有利的。 该方法的特征在于对产物形成的高选择性。
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公开(公告)号：US07303606B2
公开(公告)日：2007-12-04
申请号：US11092345
申请日：2005-03-29
申请人： Yongxian Zeng , Divyanshu R. Acharya , Satish S. Tamhankar , Narayanan Ramprasad , Ramakrishnan Ramachandran , Frank R. Fitch , Donald L. MacLean , Jerry Y. S. Lin , Richard H. Clarke
发明人： Yongxian Zeng , Divyanshu R. Acharya , Satish S. Tamhankar , Narayanan Ramprasad , Ramakrishnan Ramachandran , Frank R. Fitch , Donald L. MacLean , Jerry Y. S. Lin , Richard H. Clarke
IPC分类号： B01D53/04
CPC分类号： B01D53/04 , B01D53/047 , B01D2253/10 , B01D2256/12 , B01D2257/102 , B01D2259/40001 , C01B13/0259 , C01B2210/0046 , F23C9/00 , F23C2202/30 , F23L7/007 , F23L2900/07001 , Y02E20/322 , Y02E20/344 , Y02P20/124 , Y10S502/525
摘要： Production of oxygen-enriched gas streams is disclosed herein. Air streams contact an oxygen-selective mixed conductor particularly a perovskite material whereby oxygen is retained or adsorbed on the perovskite and can be employed in a variety of processes such as in combusting a fuel gas, heat recovery and boiler related operations.
摘要翻译： 本文公开了富氧气流的生产。 空气流接触氧选择性混合导体，特别是钙钛矿材料，由此氧气保留或吸附在钙钛矿上，可用于燃烧燃气，热回收和锅炉相关操作等各种工艺。
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