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公开(公告)号：US07214841B2
公开(公告)日：2007-05-08
申请号：US10620186
申请日：2003-07-15
IPC分类号： C07C6/04
CPC分类号： C07C11/06 , C07C6/04 , C07C2521/08 , C07C2521/10 , C07C2523/30 , Y02P20/127
摘要： In order to maximize the production of propylene when the external supply of ethylene is limited, the C4 cut from a hydrocarbon cracking process is first subjected to autometathesis prior to any isobutylene removal and without any ethylene addition. This favors the reactions which produce propylene and pentenes. The ethylene and propylene produced are then removed leaving a stream of the C4's and heavier components. The C5 and heavier components are then removed leaving a mixture of 1-butene, 2-butene, isobutylene, and iso- and normal butanes. The isobutylene is next removed preferably by a catalytic distillation hydroisomerization de-isobutyleneizer. The isobutylene-free C4 stream is then mixed with the product ethylene removed from the autometathesis product together with any fresh external ethylene needed and subjected to conventional metathesis producing additional propylene.
摘要翻译： 为了在限制乙烯的外部供应时最大限度地生产丙烯，从烃裂解过程切割的C 4 O 3首先在任何异丁烯去除之前和没有任何乙烯加成之前进行自动化。 这有利于产生丙烯和戊烯的反应。 然后除去生成的乙烯和丙烯，留下C 4+和较重组分的流。 然后除去C 5+和更重的组分，留下1-丁烯，2-丁烯，异丁烯和异丁烷和正丁烷的混合物。 接下来，异丁烯通过催化蒸馏加氢异构化脱异丁烯化处理。 然后将不含异丁烯的C 4 H 4流与从自动分离产物中除去的产物乙烯与所需的任何新鲜的外部乙烯混合，并进行常规复分解产生另外的丙烯。
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2.发明申请CATALYST FOR METATHESIS OF ETHYLENE AND 2-BUTENE AND/OR DOUBLE BOND ISOMERIZATION 有权乙烯和2-丁烯和/或双键异构体的分解催化剂公开(公告)号：US20110021858A1
公开(公告)日：2011-01-27
申请号：US12506615
申请日：2009-07-21
IPC分类号： C07C5/25
CPC分类号： C07C5/2512 , B01J21/08 , B01J21/10 , C07C6/04 , C07C2521/04 , C07C2521/08 , C07C2521/10 , C07C2521/16 , C07C2523/02 , C07C2523/04 , C07C2523/30 , Y02P20/52 , C07C11/08 , C07C11/06
摘要： A process for the double-bond isomerization of olefins is disclosed. The process may include contacting a fluid stream comprising olefins with a fixed bed comprising an activated basic metal oxide isomerization catalyst to convert at least a portion of the olefin to its isomer. The isomerization catalysts disclosed herein may have a reduced cycle to cycle deactivation as compared to conventional catalysts, thus maintaining higher activity over the complete catalyst life cycle.
摘要翻译： 公开了烯烃双键异构化的方法。 该方法可以包括将包含烯烃的流体流与包含活化的碱性金属氧化物异构化催化剂的固定床接触以将至少一部分烯烃转化为其异构体。 与常规催化剂相比，本文公开的异构化催化剂可以具有减少的循环至循环失活，因此在整个催化剂生命周期内保持较高的活性。
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公开(公告)号：US06777582B2
公开(公告)日：2004-08-17
申请号：US10093322
申请日：2002-03-07
IPC分类号： C07C604
CPC分类号： C07C11/107 , C07C5/2512 , C07C6/04 , C07C2521/04 , C07C2521/06 , C07C2521/08 , C07C2521/10 , C07C2523/02 , C07C2523/16 , C07C2523/24 , C07C2523/30 , C07C2523/32 , C07C2529/06
摘要： A C3 to C6 hydrogen cut from a cracking unit is processed for the conversion of olefins to propylene and hexene via autometathesis. The autometathesis of a mixed normal butenes feed in the presence of a metathesis catalyst operates without any ethylene in the feed mix to the metathesis reactor. Some fraction of the 2-butene feed may be isomerized to 1-butene and the 1-butene formed plus the 1-butene in the feed react rapidly with the 2-butene to form propylene and 2-pentene. The feed to the reactor also includes the recycle of the 2-pentene formed in the reactor with unreacted butenes to simultaneously form additional propylene and hexene. In one embodiment, some or all of the 3-hexene formed in the reaction is isomerized to 1-hexene. In another embodiment, some portion of the 3-hexene produced in the main metathesis reaction is reacted with ethylene to produce 1-butene without the need for superfractionation. In another embodiment, the 3-hexene product is hydrogenated and recycled back to the cracking heaters.
摘要翻译： 处理从裂化装置切割的C 3至C 6氢气经由自动化将烯烃转化为丙烯和己烯。 在复分解催化剂存在下，混合的正丁烯进料的自动化在进料混合物中没有任何乙烯运行到复分解反应器。 2-丁烯进料的一部分可以异构化成1-丁烯，并且进料中形成的1-丁烯加上1-丁烯与2-丁烯快速反应形成丙烯和2-戊烯。 反应器的进料还包括在反应器中形成的2-戊烯与未反应的丁烯循环，以同时形成另外的丙烯和己烯。 在一个实施方案中，在反应中形成的部分或全部3-己烯异构化为1-己烯。 在另一个实施方案中，在主复分解反应中产生的一部分3-己烯与乙烯反应生成1-丁烯，而不需要超分级。 在另一个实施方案中，将3-己烯产物氢化并再循环回裂化加热器。
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公开(公告)号：US5780683A
公开(公告)日：1998-07-14
申请号：US712478
申请日：1996-09-11
CPC分类号： C07C29/50 , C07C45/33 , C07C2101/14
摘要： Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The product is then catalytically hydrogenated while the product is still at reaction temperature to produce additional cyclohexanol and cyclohexanone from the precursors. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products. The hydrogenation is carried out in a reactor using a catalyst of palladium supported on carbon.
摘要翻译： 催化氧化环己烷以产生环己醇和环己酮以及这些产物的前体。 然后将产物催化氢化，同时产物仍处于反应温度以从前体产生另外的环己醇和环己酮。 在高氧浓度（大于30％，优选大于90％氧气浓度）和相对低的温度（小于160℃）的液体氧化反应器中进行氧化。 使用液体氧化反应器允许使用这些高氧浓度，而不会在塔顶气相中形成危险的高水平的氧。 结果是所需产物的产率和选择性提高。 氢化在反应器中使用负载在碳上的钯催化剂进行。
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公开(公告)号：US06683019B2
公开(公告)日：2004-01-27
申请号：US09880670
申请日：2001-06-13
IPC分类号： B01J2108
CPC分类号： C07C6/04 , B01J21/08 , B01J23/28 , B01J23/30 , B01J23/36 , B01J37/0201 , C07C2521/08 , C07C2523/28 , C07C2523/30 , C07C2523/36
摘要： An olefin metathesis catalyst consists essentially of a transition metal or oxide thereof supported on a high purity silica support possessing low amounts of acidic or basic sites such that in the reaction of pure butene-1 over said catalyst under metathesis reaction conditions the reaction possesses a weight selectivity to hexene-3 of at least 55 wt %.
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公开(公告)号：US6008415A
公开(公告)日：1999-12-28
申请号：US119074
申请日：1998-07-10
CPC分类号： C07C29/50 , C07C45/33 , C07C2101/14
摘要： Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products.
摘要翻译： 催化氧化环己烷以产生环己醇和环己酮以及这些产物的前体。 在高氧浓度（大于30％，优选大于90％氧气浓度）和相对低的温度（小于160℃）的液体氧化反应器中进行氧化。 使用液体氧化反应器允许使用这些高氧浓度，而不会在塔顶气相中形成危险的高水平的氧。 结果是所需产物的产率和选择性提高。
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公开(公告)号：US08586813B2
公开(公告)日：2013-11-19
申请号：US12506615
申请日：2009-07-21
IPC分类号： C07C5/25
CPC分类号： C07C5/2512 , B01J21/08 , B01J21/10 , C07C6/04 , C07C2521/04 , C07C2521/08 , C07C2521/10 , C07C2521/16 , C07C2523/02 , C07C2523/04 , C07C2523/30 , Y02P20/52 , C07C11/08 , C07C11/06
摘要： A process for the double-bond isomerization of olefins is disclosed. The process may include contacting a fluid stream comprising olefins with a fixed bed comprising an activated basic metal oxide isomerization catalyst to convert at least a portion of the olefin to its isomer. The isomerization catalysts disclosed herein may have a reduced cycle to cycle deactivation as compared to conventional catalysts, thus maintaining higher activity over the complete catalyst life cycle.
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公开(公告)号：US20110130604A1
公开(公告)日：2011-06-02
申请号：US13054404
申请日：2009-04-02
CPC分类号： C07C11/107 , B01D3/146 , C07C5/2506 , C07C6/04 , C07C11/08
摘要： Processes and systems for producing linear alpha olefins are described herein. One embodiment is a process comprising: a) separating a mixed butene stream comprising 1-butene and 2-butene into an overhead 1-butene stream and a bottoms 2-butene stream in a butene distillation column, a portion of the bottoms 2-butene stream being separated to form a butene reboiler stream that is heated and vaporized in a reboiler and returned to the butene distillation column, (b) subjecting at least a portion of the overhead 1-butene stream from (a) to catalytic metathesis to produce an effluent including 3-hexene, (c) isomerizing 3-hexene from (b) to produce a mixed hexene stream comprising 1-hexene, 2-hexene and 3-hexene, (d) separating the mixed hexene stream in a hexene fractionation tower to form a 1-hexene vapor overhead stream that is condensed in a cooler and a bottoms stream comprising 2-hexene and 3-hexene, and (e) using heat obtained by condensing the 1-hexene vapor overhead stream of (d) to heat the butene reboiler stream of (a). Another embodiment is a superfractionation process. Corresponding systems are also disclosed.
摘要翻译： 本文描述了用于生产线性α-烯烃的方法和系统。 一个实施方案是一种方法，其包括：a）将包含1-丁烯和2-丁烯的混合丁烯流分离成丁烯蒸馏塔中的塔顶馏出物1-丁烯物流和底部2-丁烯物流，一部分底部2-丁烯 流分离以形成丁烯再沸器料流，其在再沸器中被加热和蒸发并返回到丁烯蒸馏塔，（b）使来自（a）的塔顶馏出物1-丁烯物流的至少一部分经历催化复分解产生 流出物包括3-己烯，（c）从（b）异构化3-己烯，以产生包含1-己烯，2-己烯和3-己烯的混合己烯流，（d）将己烯分馏塔中的混合的己烯流分离成 形成在冷却器中冷凝的1-己烯蒸气塔顶馏出物和包含2-己烯和3-己烯的底部物流，和（e）使用通过（d）的1-己烯蒸气塔顶馏分冷凝获得的热量来加热 （a）的丁烯再沸器流。 另一个实施方案是超分级方法。 还公开了相应的系统。
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公开(公告)号：US06875901B2
公开(公告)日：2005-04-05
申请号：US09863973
申请日：2001-05-23
CPC分类号： C07C11/08 , C07C5/2512 , C07C2521/10 , C07C2523/02 , C07C2523/04 , Y02P20/127 , C07C11/02
摘要： An olefin isomerization process employs a basic metal oxide catalyst, such as magnesium oxide, which retains at least about 85 percent of its initial activity for at least about 168 hours of on-stream time. The catalyst is preferably a high purity magnesium oxide. The olefin isomerization process and catalyst described herein are advantageously used for the production of a terminal olefin such as 1-butene from an internal olefin such as 2-butene.
摘要翻译： 烯烃异构化方法使用碱性金属氧化物催化剂，例如氧化镁，其保留至少约85％的初始活性至少约168小时的电流时间。 催化剂优选为高纯度氧化镁。 本文所述的烯烃异构化方法和催化剂有利地用于从内烯烃如2-丁烯生产末端烯烃如1-丁烯。
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公开(公告)号：US08440874B2
公开(公告)日：2013-05-14
申请号：US12554805
申请日：2009-09-04
申请人： Bala Ramachandran , Sukwon Choi , Robert J. Gartside , Shane Kleindienst , Wolfgang Ruettinger , Saeed Alerasool
发明人： Bala Ramachandran , Sukwon Choi , Robert J. Gartside , Shane Kleindienst , Wolfgang Ruettinger , Saeed Alerasool
IPC分类号： C07C6/04
CPC分类号： B01J27/236 , B01J23/007 , B01J23/30 , B01J35/0006 , B01J37/0201 , B01J37/04 , C07C5/2512 , C07C6/04 , C07C2521/04 , C07C2521/10 , C07C2523/02 , C07C2523/04 , C07C2523/10 , C07C2523/20 , C07C2523/22 , C07C2523/28 , C07C2523/30 , C07C2523/36 , C07C2523/44 , C07C2523/46 , C07C2523/755 , C07C2527/24 , Y02P20/52 , C07C11/08 , C07C11/06
摘要： A process for the production of propylene, the process including: contacting ethylene and a hydrocarbon stream comprising 1-butene and 2-butene with a bifunctional isomerization-metathesis catalyst to concurrently isomerizes 1-butene to 2-butene and to form a metathesis product comprising propylene; wherein the bifunctional isomerization-metathesis catalyst comprises: a catalyst compound may include at least one element selected from tungsten, tantalum, niobium, molybdenum, nickel, palladium, osmium, iridium, rhodium, vanadium, ruthenium, and rhenium for providing metathesis activity on a support comprising at least one element from Group IA, IIA, IIB, and IIIA of the Periodic Table of the Elements; wherein an exposed surface area of the support provides both isomerization activity for the isomerization of 1-butene to 2-butene; and reactive sites for the adsorption of catalyst compound poisons. In other embodiments, the catalyst compound may include at least one element selected from aluminum, gallium, iridium, iron, molybdenum, nickel, niobium, osmium, palladium, phosphorus, rhenium, rhodium, ruthenium, tantalum, titanium, tungsten, and vanadium.
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