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公开(公告)号：US07385097B1
公开(公告)日：2008-06-10
申请号：US11170510
申请日：2005-06-29
申请人： Paul R. Cottrell
发明人： Paul R. Cottrell
IPC分类号： C07C7/167
CPC分类号： C07C7/167 , C07C7/14841
摘要： A process for the purification of a diolefin hydrocarbon stream containing acetylene and sulfur compounds.
摘要翻译： 一种净化含有乙炔和硫化合物的二烯烃流的方法。
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公开(公告)号：US06657096B2
公开(公告)日：2003-12-02
申请号：US10113689
申请日：2002-03-29
申请人： Kerry O. Boehner , Karl Z. Steigleder , Veronica Marie Godfrey , Paul R. Cottrell , Earl S. Lemberger
发明人： Kerry O. Boehner , Karl Z. Steigleder , Veronica Marie Godfrey , Paul R. Cottrell , Earl S. Lemberger
IPC分类号： C07C252
CPC分类号： B01J29/061 , B01J27/16 , B01J29/40 , B01J29/405 , B01J29/65 , B01J29/70 , B01J29/7034 , B01J29/90 , B01J37/0009 , B01J38/12 , B01J38/60 , B01J38/66 , B01J2229/26 , B01J2229/36 , B01J2229/40 , B01J2229/42
摘要： This invention relates to a process for reactivating a dehydrocyclodimerization catalyst. Dehydrocyclodimerization catalysts which contain an aluminum phosphate binder can be deactivated when they are exposed to hydrogen at temperatures above 500° C. The instant process restores substantially all of the catalyst's lost activity. The process involves treating the catalyst with a fluid comprising water and drying the catalyst. The process is employed particularly advantageously in combination with coke removal for reactivating catalysts that contain coke deposits and that have also been hydrogen deactivated. This invention also relates to a method of producing a dehydrocyclodimerization catalyst that is resistant to hydrogen deactivation.
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公开(公告)号：US6107526A
公开(公告)日：2000-08-22
申请号：US99163
申请日：1998-06-18
CPC分类号： C07C41/42 , C07C41/06 , Y02P20/127
摘要： A catalytic distillation process for producing high purity ethyl tertiary butyl ether that contains less than 0.6 weight percent ethanol, and preferably less than 0.07 weight percent ethanol, has been developed. The high purity ethyl tertiary butyl ether is withdrawn directly from a catalytic distillation column; no downstream processing is necessary to remove excess ethanol from the ether product. A stream containing largely normal butane is generated by a C.sub.4 distillation column along with a stream containing isobutane. The stream containing isobutane is dehydrogenated to form a stream containing isobutylene. Ethanol, the stream containing isobutylene, and the stream containing largely normal butane are introduced to an etherification zone containing a catalytic distillation column. The catalytic distillation column is operated under conditions which result in the reaction of the ethanol with the isobutylene to form ethyl tertiary butyl ether. Excess ethanol forms an azeotrope with the normal butane and is distilled with other hydrocarbons into an overhead stream. The ethyl tertiary butyl ether and no more than 0.6 weight percent ethanol are distilled into a bottoms stream and withdrawn directly from the catalytic distillation column.
摘要翻译： 已经开发了用于生产含有小于0.6重量％乙醇，优选小于0.07重量％乙醇的高纯度乙基叔丁基醚的催化蒸馏方法。 高纯度乙基叔丁基醚直接从催化蒸馏塔中取出; 不需要下游处理来从醚产物中除去过量的乙醇。 含有大量正丁烷的料流是由C4蒸馏塔和含有异丁烷的料流产生的。 含有异丁烷的物流被脱氢以形成含有异丁烯的物流。 将含有异丁烯的物流和含有大量正丁烷的物流引入含有催化蒸馏塔的醚化区。 催化蒸馏塔在乙醇与异丁烯反应形成乙基叔丁基醚的条件下运行。 过量的乙醇与正丁烷形成共沸物，并与其他烃一起蒸馏成塔顶物流。 将乙基叔丁基醚和不超过0.6重量％的乙醇蒸馏到塔底物流中，直接从催化蒸馏塔中取出。
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4.发明授权Process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation reaction zone 失效用于管理在烃脱氢反应区中产生的多核芳族化合物的方法
公开(公告)号：US5792899A
公开(公告)日：1998-08-11
申请号：US723205
申请日：1996-09-27
申请人： Paul R. Cottrell
发明人： Paul R. Cottrell
摘要： A process for the management of polynuclear aromatic compounds produced in a hydrocarbon dehydrogenation zone wherein the effluent from the hydrocarbon dehydrogenation zone is contacted with an adsorbent to reduce the concentration of polynuclear aromatic compounds. The resulting dehydrogenated hydrocarbon having a reduced concentration of polynuclear aromatic compounds is reacted with methanol to produce an ether. A portion of the ether is contacted with a spent bed of adsorbent to recover at least a portion of the polynuclear aromatic compounds adsorbed thereon to thereby regenerate the adsorbent.
摘要翻译： 用于管理在烃脱氢区中产生的多核芳族化合物的方法，其中来自烃脱氢区的流出物与吸附剂接触以降低多核芳族化合物的浓度。 所得到的具有降低的多核芳族化合物浓度的脱氢烃与甲醇反应生成醚。 一部分醚与吸附剂的废床接触以回收至少一部分吸附在其上的多核芳族化合物，从而再生吸附剂。
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公开(公告)号：US5321192A
公开(公告)日：1994-06-14
申请号：US989319
申请日：1992-12-11
CPC分类号： C07C5/321 , C07C5/3337
摘要： The activity, selectivity and yield of a dehydrogenation process used to produce olefins from normal paraffin hydrocarbons having 2 to 5 carbon atoms per molecule is improved by the introduction of an essentially constant level of water into the inlet of two or more beds of dehydrogenation catalyst.
摘要翻译： 通过在两个或更多个脱氢催化剂床的入口中引入基本恒定水平的水来改善用于由每分子具有2至5个碳原子的正构链烷烃生产烯烃的脱氢方法的活性，选择性和产率。
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公开(公告)号：US5227566A
公开(公告)日：1993-07-13
申请号：US779746
申请日：1991-10-21
CPC分类号： B01J38/42 , B01J23/96 , C07C5/325 , Y02P20/584
摘要： A process for the dehydrogenation of a hydrocarbon selected from the group consisting of propane and butane in the presence of a catalyst comprising platinum and a carrier material. Reconditioning of catalyst particles containing platinum by transferring the catalyst particles through a combustion zone, a drying zone and a re-dispersion zone improves the process. Drying of the catalyst particles immediately after the combustion of coke improves the operation of a platinum re-dispersion zone. The lower moisture content in the re-dispersion zone allows the equilibrium reaction between hydrogen chloride and oxygen on the one hand, and water and chlorine on the other hand to be shifted to the production of chlorine. This shift of the equilibrium reaction can be further improved by maintaining an oxygen-enriched environment within the platinum re-dispersion zone. The use of a much lower chloride concentration in the re-dispersion zone reduces the emissions of hydrogen chloride from the regeneration zone.
摘要翻译： 在包含铂和载体材料的催化剂存在下，选自丙烷和丁烷的烃的脱氢方法。 通过将催化剂颗粒转移通过燃烧区域，干燥区域和再分散区域来改造含有铂的催化剂颗粒改善了该方法。 在焦炭燃烧之后立即干燥催化剂颗粒改善了铂再分散区的操作。 再分散区域中的较低水分含量一方面允许氯化氢和氧气之间的平衡反应，另一方面水和氯也转变为氯的产生。 通过保持铂再分散区内的富氧环境，可以进一步提高平衡反应的这种转变。 在再分散区域中使用低得多的氯化物浓度减少了来自再生区域的氯化氢的排放。
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7.发明授权
公开(公告)号：US5012021A
公开(公告)日：1991-04-30
申请号：US584214
申请日：1990-09-18
申请人： Bipin V. Vora , Paul R. Cottrell
发明人： Bipin V. Vora , Paul R. Cottrell
IPC分类号： C07C15/107
CPC分类号： C07C15/107 , Y02P20/582
摘要： An improved process for the production of alkylaromatic hydrocarbons is disclosed. Paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing stream, which is later charged to an alkylation zone for reaction with an aromatic hydrocarbon in the presence of a solid alkylation catalyst. The olefin-containing stream is first passed through a selective hydrogenation zone in which diolefins are converted to monoolefins by contact with a selective catalyst. This increases the yield and the quality of the product alkylate by greatly reducing the production of biphenyl compounds and oligomers in the alkylation zone. Process efficiency is improved by passing unconverted paraffinic and monoolefinic hydrocarbons from the alkylation zone through another hydrogenation zone for the saturation of monoolefinic hydrocarbons and recycling the saturated stream to the dehydrogenation zone. The use of a solid alkylation catalyst can also allow the selective hydrogenation zone to be located downstream of the stripper for the dehydrogenation zone so that the effluent from the selective hydrogenation zone discharges directly into the alkylation zone.
摘要翻译： 公开了一种生产烷基芳族烃的改进方法。 将烷烃烃脱氢以产生含烯烃的物流，随后将其装入烷基化区以在固体烷基化催化剂存在下与芳烃反应。 首先将含烯烃的物流通过选择性氢化区，其中通过与选择性催化剂接触将二烯烃转化为单烯烃。 这通过大大降低烷基化区中联苯化合物和低聚物的产生而提高了烷基化产物的产率和质量。 通过使来自烷基化区的未转化的链烷烃和单烯烃通过另一氢化区用于饱和单烯烃并且将饱和流再循环到脱氢区来提高工艺效率。 使用固体烷基化催化剂还可以使选择氢化区位于脱氢区的汽提塔的下游，使得来自选择氢化区的流出物直接排放到烷基化区。
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公开(公告)号：US4732665A
公开(公告)日：1988-03-22
申请号：US35559
申请日：1987-04-06
IPC分类号： C10G35/04
CPC分类号： C10G35/04
摘要： An improved catalytic reforming process. The process is operated at high severity in order to obtain a reformate product having an enhanced octane rating. Higher octane reformate is required to compensate for the reduction or total elimination of lead-based additives used in motor gasoline for increasing octane rating, since reformate is a primary component of motor gasoline. High severity operation results in the formation of quantities of polycyclic aromatic compounds whose presence is highly undesirable. These compounds are removed from the vaporous products of the catalytic reforming process by adsorption on an appropriate material. It was totally unexpected to find that these very high molecular weight compounds are present in vapor streams comprised of hydrogen and light normally-gaseous hydrocarbons such as methane, ethane, and propane.
摘要翻译： 改进的催化重整过程。 该方法以高度苛刻度操作，以获得具有增强的辛烷值的重整产物。 需要更高辛烷值的重整油来补偿汽油中用于提高辛烷值的铅基添加剂的减少或完全消除，因为重整油是汽油的主要成分。 高度严格的操作导致形成多环芳族化合物的量，其存在是非常不希望的。 这些化合物通过在合适的材料上吸附从催化重整过程的蒸气产物中除去。 完全意外的是发现这些非常高分子量的化合物存在于由氢气和轻质正常气体烃如甲烷，乙烷和丙烷组成的蒸汽流中。
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公开(公告)号：US5569790A
公开(公告)日：1996-10-29
申请号：US237532
申请日：1994-05-03
申请人： Stanley J. Frey , Paul R. Cottrell , David A. Hamm
发明人： Stanley J. Frey , Paul R. Cottrell , David A. Hamm
摘要： A process is disclosed for improving catalyst performance and yields in the manufacture of motor gasoline components. More particularly the process is directed to the removal of trace amounts of acetonitrile or acetone or propionitrile from a hydrocarbon feedstock such as a C.sub.4 -C.sub.6 product fraction from a fluid catalytic cracking unit, which may be used subsequently in an etherification process for the production of ethers such as MTBE and TAME. The hydrocarbon feedstock is passed to a water wash zone for the removal of the trace amounts of acetonitrile or acetone or propionitrile and the spent water comprising the nitriles is contacted with a nitrile-lean stream to regenerate the wash water. A portion of the spent water stream is withdrawn to reduce the nitrile level in the nitrile-lean water stream. The combined water wash, regeneration, and water recycle steps provide protection for the etherification zone catalyst with a significantly reduced requirement for wash water and spent wash water disposal.
摘要翻译： 公开了一种用于改善汽油汽油组分制造中的催化剂性能和产率的方法。 更具体地，该方法涉及从烃原料例如来自流化催化裂化装置的C4-C6产物级分除去痕量的乙腈或丙酮或丙腈，其可以随后在醚化方法中用于生产 醚类如MTBE和TAME。 将烃原料通入水洗区，以除去痕量的乙腈或丙酮或丙腈，并将包含腈的废水与富含腈的物流接触以再生洗涤水。 一部分废水流被抽出以降低腈水流中的腈水平。 组合的水洗，再生和水循环步骤为醚化区催化剂提供了保护，显着降低了对洗涤水和废洗水处理的需求。
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10.发明授权
公开(公告)号：US5457077A
公开(公告)日：1995-10-10
申请号：US176159
申请日：1993-12-30
摘要： A regeneration process for reconditioning catalyst particles containing platinum by transferring the catalyst particles through a combustion zone and a reconditioning zone is disclosed. Drying of the catalyst particles and redispersion of the platinum occur simultaneously in a single reconditioning zone. Catalyst that enters the reconditioning zone is contacted countercurrently with a heated gas stream containing chlorine and oxygen. A low moisture content of the gas stream aids drying and allows the equilibrium reaction between hydrogen chloride and oxygen on the one hand, and water and chlorine on the other hand to be shifted to chlorine. This shift of the equilibrium reaction can be further improved by maintaining an oxygen-enriched environment within the reconditioning zone. By eliminating the need for separate drying and redispersion zones used previously, the regeneration apparatus is less expensive to build and the regeneration process is less expensive to operate.
摘要翻译： 公开了一种用于通过将催化剂颗粒转移通过燃烧区和再生区来重新调节含有铂的催化剂颗粒的再生方法。 催化剂颗粒的干燥和铂的再分散同时发生在单个再生区中。 进入再生区的催化剂与含有氯和氧的加热气流逆流接触。 气流的低水分含量一方面有助于干燥，并允许氯化氢和氧气之间的平衡反应，另一方面水和氯也被转移到氯气中。 通过保持再生区内的富氧环境，可以进一步提高平衡反应的这种转变。 通过消除对先前使用的单独的干燥和再分散区的需要，再生设备的建造成本较低，并且再生过程操作成本较低。
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