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公开(公告)号：US5557030A
公开(公告)日：1996-09-17
申请号：US409114
申请日：1995-03-23
申请人： John Markovs , Carmen M. Yon
发明人： John Markovs , Carmen M. Yon
摘要： A process is provided for the removal of heavy hydrocarbons from a feed gas mixture. An adsorption process employing a high silica zeolite adsorbent having a silica to alumina ratio greater than about 20 and having a pore size greater than about 4.5 Angstroms is used to remove from the feed gas mixture heavy hydrocarbon contaminants and permit the further treatment of the feed gas for the bulk removal of carbon dioxide. The adsorption zone comprises at least 2 adsorption beds wherein one of the first adsorption beds is operating in an adsorption mode and the other is being regenerated. The effluent from the adsorption zone, depleted in heavy hydrocarbons is passed to a membrane treating zone to provide a non-permeate stream depleted in carbon dioxide. At least a portion of the non-permeate stream is heated and the heated non-permeate stream is used to regenerate the adsorption zone. The use of the present invention removes heavy hydrocarbon contaminants which are responsible for the degeneration of the performance of the membrane treating zone.
摘要翻译： 提供了用于从进料气体混合物中除去重质烃的方法。 使用二氧化硅与氧化铝比大于约20并且孔径大于约4.5埃的高二氧化硅沸石吸附剂的吸附方法用于从进料气体混合物重烃污染物中除去并允许进一步处理进料气体 用于大量去除二氧化碳。 吸附区包括至少2个吸附床，其中第一吸附床中的一个以吸附模式运行，另一个正在再生。 将来自贫烃的吸附区的流出物通入膜处理区，以提供贫二氧化碳的非渗透物流。 至少一部分非渗透物流被加热并且加热的非渗透物流用于再生吸附区。 本发明的使用除去了造成膜处理区的性能退化的重质烃污染物。
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公开(公告)号：US5401887A
公开(公告)日：1995-03-28
申请号：US201590
申请日：1994-02-25
申请人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
发明人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
摘要： The present invention is a cyclic process for the preparation of ethyl tert.-alkyl ethers by the reaction of an alcohol, ethanol, with an iso-olefin such as isobutylene or isoamylene wherein an effluent from the reaction zone is separated in a distillation column to provide an overhead effluent stream and a bottoms effluent stream comprising ethyl tert.-alkyl ether and unreacted ethanol. The unreacted ethanol is recovered in an adsorption zone comprising a selective adsorbent selected from the group consisting of zeolite 13X, sodium zeolite Y, alumina, silicalite and mixtures thereof. The invention is useful in recovering unreacted ethanol from the bottoms effluent stream and returning the unreacted ethanol to the reaction zone. The invention reduces the cost of this separation which is complicated by the formation of an azeotrope between the unreacted alcohol and the ether.
摘要翻译： 本发明是通过醇，乙醇与异烯烃如异丁烯或异戊烯的异构体反应制备乙基叔烷基醚的循环方法，其中将来自反应区的流出物在蒸馏塔中分离成 提供塔顶流出物流和包含乙基叔烷基醚和未反应的乙醇的塔底物流出物流。 在包含选自由沸石13X，沸石Y，氧化铝，硅沸石及其混合物组成的组的选择性吸附剂的吸附区中回收未反应的乙醇。 本发明可用于从底部流出物流中回收未反应的乙醇并将未反应的乙醇返回到反应区。 本发明降低了这种分离的成本，这是由于在未反应的醇和醚之间形成共沸物而复杂的。
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公开(公告)号：US5177298A
公开(公告)日：1993-01-05
申请号：US717296
申请日：1991-06-18
申请人： Carmen M. Yon , Joe Quock , Wim P. Reel , Henry Rastelli
发明人： Carmen M. Yon , Joe Quock , Wim P. Reel , Henry Rastelli
IPC分类号： C07C7/13
CPC分类号： C07C7/13
摘要： A process for the regeneration of oxygenate containing adsorbents uses regenerant streams such as LPG and isomerate products for the desorption of oxygenate compounds. The process discloses arrangements for the integration of regenerant treatment into the adsorption scheme and for the enhancement of the isomerate product. The integrated flowscheme can be used to remove sulfur and water from contaminated regenerants or to deliver the oxygenates into the gasoline pool.
摘要翻译： 含氧化合物的吸附剂的再生方法使用再生剂流如LPG和异构化产物来解吸含氧化合物。 该方法公开了将再生剂处理整合到吸附方案中并用于增强异构体产物的布置。 整合的流程可用于从受污染的再生剂中除去硫和水，或将含氧物质输送到汽油池中。
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公开(公告)号：US5475150A
公开(公告)日：1995-12-12
申请号：US337805
申请日：1994-11-14
申请人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
发明人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
摘要： The present invention relates to a process for the separation of ethanol from a mixture thereof with ethyl tert.-alkyl ether employing a selective adsorbent comprising a mixture of sodium zeolite Y in combination with alumina wherein the percentage of the sodium zeolite Y ranges between 10 and 40 wt-%. The invention reduces the cost of this separation which is complicated by an azeotrope formation between the alcohol and the ether.
摘要翻译： 本发明涉及一种用乙基叔烷基醚与乙基叔烷基醚分离乙醇的方法，该方法使用包含钠沸石Y与氧化铝组合的混合物的选择性吸附剂，其中钠沸石Y的百分比在10和 40重量％。 本发明降低了由于醇和醚之间的共沸物形成而复杂的分离成本。
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公开(公告)号：US5237111A
公开(公告)日：1993-08-17
申请号：US930637
申请日：1992-09-25
申请人： Carmen M. Yon , John P. Brady , Joe Quock
发明人： Carmen M. Yon , John P. Brady , Joe Quock
IPC分类号： C07C41/36
摘要： A process for the etherification and separation of C.sub.3 -C.sub.5 hydrocarbons is improved by the advantageous integration of an oxygenate recovery unit having a 3-bed arrangement into the etherification separation section. A feedstream including C.sub.3 hydrocarbons and isobutene are reacted with methanol in an etherification to produce an etherification effluent that is separated in a first separator into a bottoms stream of MTBE product and an overhead stream of unreacted isobutane, methanol, other oxygenate compounds and C.sub.3 -hydrocarbons. After recovery of methanol, in an adsorptive separation process, the methanol deficient overhead stream enters a second separation zone in the form of depropanizer for the separation of isobutane and higher boiling hydrocarbons from the C.sub.3 hydrocarbons. Any oxygenate compounds that are carried from the bottom of the column with the C.sub.4 + hydrocarbon stream are removed in an oxygenate recovery unit designed to produce an ultra pure product essentially free of oxygenates. A portion of the purified hydrocarbons from the oxygenate recovery unit are recycled as regenerant through the oxygenate recovery unit to desorb oxygenate compounds. This integration of the oxygenate recovery unit provides a closed loop for its regeneration that utilizes existing separation facilities for the removal of oxygenate compounds from the hydrocarbons of the regenerant stream.
摘要翻译： 通过将具有3床布置的含氧化合物回收单元有利地整合到醚化分离部分中，C3-C5烃的醚化和分离的方法得到改善。 包含C3烃和异丁烯的进料流在甲醚中与甲醇反应生成醚化流出物，其在第一分离器中分离成MTBE产物的底部物流，未反应的异丁烷，甲醇，其它含氧化合物和C3-烃的塔顶物流 。 在甲醇回收之后，在吸附分离过程中，甲醇缺乏的顶部物流以脱丙烷塔的形式进入第二分离区，用于从C3烃分离异丁烷和较高沸点的烃。 在具有C4 +烃流的柱底部承载的任何含氧化合物在设计成产生基本上不含氧化合物的超纯产物的含氧化合物回收单元中除去。 来自含氧化合物回收单元的一部分纯化烃通过含氧化合物回收装置再循环作为再生剂以解吸含氧化合物。 含氧化合物回收单元的这种整合为其再生提供了一个闭环，其利用现有的分离设备从再生剂流的烃中除去含氧化合物。
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公开(公告)号：US5569787A
公开(公告)日：1996-10-29
申请号：US346951
申请日：1994-11-30
申请人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
发明人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
摘要： The present invention is a cyclic process for the preparation of ethyl tert.-alkyl ethers by the reaction of an alcohol, ethanol, with an iso-olefin such as isobutylene or isoamylene wherein an effluent from the reaction zone is separated in a distillation column to provide an overhead effluent stream and a bottoms effluent stream comprising ethyl tert.-alkyl ether and unreacted ethanol. The unreacted ethanol is recovered in an adsorption zone comprising a selective adsorbent selected from the group consisting of zeolite 13X, sodium zeolite Y, alumina, silicalite and mixtures thereof. The invention is useful in recovering unreacted ethanol from the bottoms effluent stream and returning the unreacted ethanol to the reaction zone. The invention reduces the cost of this separation which is complicated by the formation of an azeotrope between the unreacted alcohol and the ether.
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公开(公告)号：US06287365B1
公开(公告)日：2001-09-11
申请号：US09519832
申请日：2000-03-06
IPC分类号： B01D5304
CPC分类号： B01D53/0462 , B01D53/047 , B01D53/261 , B01D2253/1085 , B01D2253/308 , B01D2257/7027 , B01D2257/80 , B01D2259/40052 , B01D2259/40054 , B01D2259/4006 , B01D2259/4009 , B01D2259/402 , Y10S95/902
摘要： A process is provided for the removal of trace amounts of aromatic hydrocarbons from an acid waste gas feed stream comprising sulfur compounds and the aromatic hydrocarbons. An adsorption process employing an adsorbent such as a high silica zeolite adsorbent having a framework silica-to-alumina ratio greater than about 15 and having a pore size greater than about 6.2 angstroms is used to remove from the feed gas mixture aromatic hydrocarbon contaminants and permit the recovery of a high purity sulfur product from the treated effluent stream. The use of the present invention removes aromatic hydrocarbon contaminants which are responsible for the degeneration of the performance of the downstream sulfur recovery zone.
摘要翻译： 提供了从包含硫化合物和芳族烃的酸性废气进料流中除去痕量芳族烃的方法。 使用吸附剂的吸附剂，例如具有大于约15的骨架二氧化硅与氧化铝的比例的高二氧化硅沸石吸附剂，其孔径大于约6.2埃，用于从进料气体混合物中除去芳族烃污染物并允许 从经处理的流出物流中回收高纯度硫产物。 本发明的用途除去了负责下游硫回收区的性能退化的芳烃污染物。
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公开(公告)号：US6120581A
公开(公告)日：2000-09-19
申请号：US231359
申请日：1999-01-13
IPC分类号： B01D53/047 , B01D53/47
CPC分类号： B01D53/0462 , B01D53/047 , B01D2253/1085 , B01D2253/308 , B01D2257/7027 , B01D2257/80 , B01D2259/40052 , B01D2259/40054 , B01D2259/4006 , B01D2259/4009 , B01D2259/402 , B01D53/261
摘要： A process is provided for the removal of trace amount of aromatic hydrocarbons from a waste feed gas stream comprising sulfur compounds and the aromatic hydrocarbons. An adsorption process employing an adsorbent such as a high silica zeolite adsorbent having a framework silica to alumina ratio greater than about 15 and having a pore size greater than about 6.2 Angstroms is used to remove from the feed gas mixture aromatic hydrocarbon contaminants and permit the recovery of a high purity sulfur product from the treated effluent stream. The adsorption zone comprises at least 2 adsorption beds wherein one of the first adsorption beds is operating in an adsorption mode and the other is being regenerated at a desorption pressure higher than the adsorption pressure. The regeneration is performed in a closed system or partially closed system, and prior to returning a regenerated adsorption zone to adsorption conditions the waste feed gas stream is used to cool and purge the regenerated zone. Purge effluent from the regeneration zone is passed to a bed undergoing adsorption in a lead/trim configuration to prevent a slug of aromatic hydrocarbons from entering the adsorption effluent. The use of the present invention removes aromatic hydrocarbon contaminants which are responsible for the degeneration of the performance of the downstream sulfur recovery zone.
摘要翻译： 提供了一种从包含硫化合物和芳族烃的废料进料气流中除去微量芳族烃的方法。 使用吸附剂的吸附剂，例如高二氧化硅沸石吸附剂，其骨架二氧化硅与氧化铝的比例大于约15，孔径大于约6.2埃，用于从进料气体混合物中除去芳族烃污染物并允许回收 的来自经处理的流出物流的高纯度硫产物。 吸附区包括至少2个吸附床，其中第一吸附床中的一个以吸附模式运行，另一个在高于吸附压力的解吸压力下再生。 再生在封闭的系统或部分封闭的系统中进行，并且在将再生的吸附区返回到吸附条件之前，使用废物进料气流来冷却和净化再生区。 来自再生区的净化流出物被传递到经历吸收的铅/修整构型的床中，以防止芳族烃块进入吸附流出物。 本发明的用途除去了负责下游硫回收区的性能退化的芳烃污染物。
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公开(公告)号：US5245107A
公开(公告)日：1993-09-14
申请号：US929047
申请日：1992-08-13
申请人： Carmen M. Yon , Joe Quock , Henry Rastelli , Wim P. Reel
发明人： Carmen M. Yon , Joe Quock , Henry Rastelli , Wim P. Reel
IPC分类号： C07C7/13
CPC分类号： C07C7/13
摘要： A process for the regeneration of oxygenate containing adsorbents uses regenerant streams such as LPG and isomerate products for the desorption of oxygenate compounds. The process discloses arrangements for the integration of regenerant treatment into the adsorption scheme and for the enhancement of the isomerate product. The integrated flowscheme can be used to remove sulfur and water from contaminated regenerants or to deliver the oxygenates into the gasoline pool.
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公开(公告)号：US4487614A
公开(公告)日：1984-12-11
申请号：US552337
申请日：1983-11-16
申请人： Carmen M. Yon
发明人： Carmen M. Yon
IPC分类号： B01D15/02 , B01D53/04 , B01D53/047 , C07C29/76 , C07C31/08
CPC分类号： B01D53/261 , B01D53/047 , C07C29/76 , B01D2253/108 , B01D2253/308 , B01D2257/70 , B01D2257/702 , B01D2257/80 , B01D2259/40052 , B01D2259/40056 , B01D2259/4006 , B01D2259/40081 , B01D2259/65
摘要： In a fixed-bed vapor phase adsorption cycle for bulk separations wherein the heat front generated by the exothermic heat of adsorption is maintained in the bed either in or behind the mass transfer zone, and is subsequently utilized in the purge desorption/regeneration of the bed, improved efficiency and enhanced versatility with respect to the degree of product purity is obtained by treating the regeneration purge gas with a portion of the purified product.
摘要翻译： 在用于批量分离的固定床气相吸附循环中，其中通过吸附放热产生的热前沿在质量传递区内或之后保持在床中，并随后用于床的吹扫解吸/再生 通过用纯化产物的一部分处理再生吹扫气体可以获得相对于产品纯度的提高的效率和增强的多功能性。
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