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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 A portion of the spent water stream is withdrawn to reduce the nitrile level in the nitrile-lean water stream.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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公开(公告)号：US5672772A
公开(公告)日：1997-09-30
申请号：US630288
申请日：1996-04-10
申请人： Stanley J. Frey , Paul R. Cottrell , David A. Hamm
发明人： Stanley J. Frey , Paul R. Cottrell , David A. Hamm
CPC分类号： C07C41/06
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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3.发明授权
公开(公告)号：US5990361A
公开(公告)日：1999-11-23
申请号：US99162
申请日：1998-06-18
CPC分类号： C07C41/42 , C07C41/06 , Y02P20/127
摘要： A low pressure 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 a significant amount of one or more inert azeotropic agents such as normal butane, isopentane, and isobutane is introduced along with the isobutylene and ethanol reactants into an etherification zone containing a catalytic distillation column. The catalytic distillation column is operated under low pressure conditions which result in the reaction of the ethanol with the isobutylene to form ethyl tertiary butyl ether. The inert azeotropic agent must be present at the inlet to the catalytic distillation column in an amount sufficient to azeotrope excess ethanol and cause the excess ethanol to distill into an overhead stream under the conditions of operation. The preferred azeotropic agent is isopentane. Excess ethanol forms an azeotrope with the azeotropic agent 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低压催化蒸馏方法。 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。 将含有大量一种或多种惰性共沸剂如正丁烷，异戊烷和异丁烷的物流与异丁烯和乙醇反应物一起引入含有催化蒸馏塔的醚化区。 催化蒸馏塔在低压条件下运行，导致乙醇与异丁烯的反应形成乙基叔丁基醚。 惰性共沸剂必须以足以共沸过量乙醇的量存在于催化蒸馏塔的入口处，并使得过量的乙醇在操作条件下蒸馏成塔顶物流。 优选的共沸剂是异戊烷。 过量的乙醇与共沸剂形成共沸物，并与其他烃一起蒸馏成塔顶馏出物。 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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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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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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6.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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7.发明授权Method for operating a continuous conversion process employing solid catalyst particles 失效操作使用固体催化剂颗粒的连续转化方法的方法
公开(公告)号：US5370786A
公开(公告)日：1994-12-06
申请号：US35840
申请日：1993-03-23
摘要： A method of operating a continuous process employing solid catalyst particles by means of charging a feedstock to a reactor and contacting the feedstock with a dense-phase moving bed of catalyst particles at conversion conditions in a reactor. A hydrogen-rich gas containing unsaturated hydrocarbon compounds is recovered from the reactor effluent and at least a portion is contacted with a hydrogenation catalyst to hydrogenate the olefins. The resulting hydrogenated hydrogen-rich gaseous stream is heated and used to supply heat to a vessel containing solid catalyst particles which are preheated and subsequently introduced into the reactor.
摘要翻译： 在反应器中的转化条件下，通过将原料装入反应器并使原料与催化剂颗粒的致密相移动床接触来操作使用固体催化剂颗粒的连续方法的方法。 从反应器流出物回收含有不饱和烃化合物的富氢气体，至少一部分与氢化催化剂接触以使烯烃氢化。 将所得的氢化富氢气流加热并用于向含有固体催化剂颗粒的容器提供热量，所述固体催化剂颗粒被预热并随后引入反应器。
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公开(公告)号：US5087792A
公开(公告)日：1992-02-11
申请号：US638952
申请日：1991-01-09
CPC分类号： B01J23/96 , B01J38/42 , 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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公开(公告)号：US06271428B1
公开(公告)日：2001-08-07
申请号：US09358795
申请日：1999-07-22
申请人： Paul R. Cottrell
发明人： Paul R. Cottrell
IPC分类号： C07C508
CPC分类号： B01J23/94 , B01J23/72 , C07C7/167 , C07C2523/72 , Y02P20/584 , C07C11/12
摘要： A process for the selective hydrogenation of trace quantities of acetylene compounds contained in a stream of diolefins to achieve extended on-stream performance by simultaneously contacting the selective catalyst with a diolefin feed, hydrogen and a polymer solvent.
摘要翻译： 用于选择氢化二烯烃流中含有的痕量乙炔化合物的方法，以通过使选择性催化剂与二烯烃进料，氢气和聚合物溶剂同时接触来实现延长的流动性能。
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10.发明授权公开(公告)号：US06194626B1
公开(公告)日：2001-02-27
申请号：US09455424
申请日：1999-12-06
申请人： Bipin V. Vora , Paul R. Cottrell
发明人： Bipin V. Vora , Paul R. Cottrell
IPC分类号： C07C7163
摘要： A cyclic process for the purification of a diolefin hydrocarbon stream produced in a naphtha steam cracker to produce a high quality diolefin hydrocarbon stream having extremely low levels of acetylene over an extended period because of the ability to readily cyclically regenerate catalyst contained in an off-line selective hydrogenation reaction zone. The spent or partially spent catalyst is contacted with a stream containing naphtha and hydrogen to restore at least a portion of the fresh catalyst activity by the extraction of polymer compounds therefrom.
摘要翻译： 用于净化石脑油蒸汽裂化器中生产的二烯烃烃流的循环方法，以在延长的时间内产生具有极低水平乙炔的高质量二烯烃烃流，这是因为能够容易地循环再生包含在离线中的催化剂 选择性加氢反应区。 将消耗或部分废弃的催化剂与含有石脑油和氢气的流体接触，以通过从其中提取聚合物化合物来恢复至少一部分新鲜催化剂活性。
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