公开(公告)号：US11261142B2

公开(公告)日：2022-03-01

申请号：US17360824

申请日：2021-06-28

申请人： Lyondell Chemical Technology, L.P.

发明人： David W. Leyshon ,  Rick B. Watson

IPC分类号： C07C5/27 ,  B01J23/44 ,  B01J21/04 ,  B01J19/24 ,  C07C6/04 ,  C07C7/09 ,  C07C7/04 ,  B01D3/14 ,  C07C7/00 ,  C07C6/02 ,  C07C5/13 ,  C07C5/25 ,  C07C5/23 ,  C07C5/22 ,  C07C5/02 ,  C07C5/03 ,  C07C5/05

摘要： Improved systems and methods for producing propylene from olefins including isobutylene is disclosed. The improvements combine streams containing co-produced 1-butene, 2-butene, butadiene, and heavy olefins (C5+) exiting both a metathesis reactor and a skeletal isomerization reactor in a gasoline fractionation tower to remove the heavy olefins. The C4-containing distillate from the gasoline fractionation tower is then fed to a hydroisomerization unit to form mono-olefins and 2-butene. The resulting 2-butene rich stream can then be utilized in metathesis reactions to increase the production of propylene while increasing the lifetime of the metathesis catalyst.

公开(公告)号：US10336781B2

公开(公告)日：2019-07-02

申请号：US14919299

申请日：2015-10-21

申请人： Trustees of Boston College, The

发明人： Amir H. Hoveyda ,  Jason Kingsbury ,  Steven Garber ,  Brian L. Gray ,  John T. Fourkas

IPC分类号： B01J31/00 ,  C07F15/00 ,  B01J31/16 ,  B01J31/18 ,  B01J31/22 ,  B01J31/24 ,  B01J31/40 ,  C07C6/02 ,  C07C29/00 ,  C07C67/293 ,  C07D233/56 ,  C08F290/00 ,  C08G83/00 ,  C08L51/04 ,  C08L51/08 ,  B01J23/46 ,  B01J31/28

摘要： Highly active, recoverable and recyclable transition metal-based metathesis catalysts and their organometallic complexes including dendrimeric complexes are disclosed, including a Ru complex bearing a 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene and styrenyl ether ligand. The heterocyclic ligand significantly enhances the catalytic activity, and the styrenyl ether allows for the easy recovery of the Ru complex. Derivatized catalysts capable of being immobilized on substrate surfaces are also disclosed. The present catalysts can be used to catalyze ring-closing metathesis (RCM), ring-opening (ROM) and cross metatheses (CM) reactions, and promote the efficient formation of various trisubstituted olefins at ambient temperature in high yield.

公开(公告)号：US10143997B2

公开(公告)日：2018-12-04

申请号：US15524026

申请日：2015-08-04

申请人： SCG Chemicals Co., Ltd.

发明人： Kongkiat Suriye ,  Amnart Jantharasuk ,  Weena Phongsawat

IPC分类号： C07C6/02 ,  C07C11/06 ,  B01J23/36 ,  C07C6/04

摘要： The present invention relates to a stabilized rhenium-based heterogeneous catalyst, obtainable by a process comprising contacting a rhenium-based heterogeneous catalyst with a stabilizing agent at a temperature in a range from 0-100° C., the stabilizing agent comprising an aliphatic hydrocarbon compound and use thereof.

公开(公告)号：US09809513B2

公开(公告)日：2017-11-07

申请号：US14548475

申请日：2014-11-20

申请人： Lummus Technology Inc.

发明人： Sukwon Choi ,  Bala Ramachandran

IPC分类号： C07C5/22 ,  C07C5/23 ,  C07C6/02 ,  C07C6/04 ,  C07C5/25 ,  B01J8/04

CPC分类号： C07C6/04 ,  B01J8/0453 ,  B01J2208/025 ,  B01J2219/00006 ,  C07C5/2512 ,  C07C11/06 ,  C07C11/08 ,  C07C11/10 ,  C07C2521/08 ,  C07C2521/10 ,  C07C2523/30

摘要： Processes for the production of olefins are disclosed, which may include: contacting a hydrocarbon mixture comprising linear butenes with an isomerization catalyst to form an isomerization product comprising 2-butenes and 1-butenes; contacting the isomerization product with a first metathesis catalyst to form a first metathesis product comprising 2-pentene and propylene, as well as any unreacted C4 olefins, and byproducts ethylene and 3-hexene; and fractionating the first metathesis product to form a C3− fraction and a C5 fraction comprising 2-pentene. The 2-pentene may then be advantageously used to produce high purity 1-butene, 3-hexene, 1-hexene, propylene, or other desired products.

公开(公告)号：US09222056B2

公开(公告)日：2015-12-29

申请号：US13335601

申请日：2011-12-22

申请人： Bruce E. Firth ,  Sharon E. Kirk

发明人： Bruce E. Firth ,  Sharon E. Kirk

IPC分类号： C10G3/00 ,  C07C6/02 ,  C07C67/02 ,  C07C1/20 ,  C07C1/213 ,  C11C3/00 ,  C10G45/00 ,  C10G50/00 ,  C10G65/04 ,  C10L1/08 ,  C11B3/00

CPC分类号： C11C3/00 ,  C10G3/42 ,  C10G3/44 ,  C10G45/00 ,  C10G50/00 ,  C10G65/043 ,  C10G2300/1014 ,  C10G2300/1018 ,  C10G2300/1088 ,  C10G2300/30 ,  C10G2300/301 ,  C10G2300/307 ,  C10G2300/308 ,  C10G2300/44 ,  C10G2300/705 ,  C10G2300/802 ,  C10G2400/02 ,  C10G2400/06 ,  C10G2400/08 ,  C10G2400/20 ,  C10G2400/22 ,  C10L1/08 ,  C10L2200/0415 ,  C10L2200/043 ,  C10L2200/0446 ,  C10L2200/0469 ,  C10L2200/0476 ,  C11B3/00 ,  C11C3/003 ,  Y02P30/20

摘要： A method of refining a natural oil includes: (a) providing a feedstock that includes a natural oil; (b) reacting the feedstock in the presence of a metathesis catalyst to form a metathesized product that includes olefins and esters; (c) passivating residual metathesis catalyst with an agent selected from the group consisting of (i) a salt and/or an ester of a phosphorous oxo acid, (ii) a derivative of the phosphorous oxo acid in which at least one P—H bond has been replaced by a P—C bond, (iii) a salt and/or an ester of the derivative, and (iv) combinations thereof; (d) separating the olefins in the metathesized product from the esters in the metathesized product; and (e) transesterifying the esters in the presence of an alcohol to form a transesterified product and/or hydrogenating the olefins to form a fully or partially saturated hydrogenated product.

摘要翻译： 精制天然油的方法包括：（a）提供包含天然油的原料; （b）在复分解催化剂存在下使原料反应以形成包含烯烃和酯的复分解产物; （c）用选自以下的试剂钝化残留的复分解催化剂：（i）含磷酸的盐和/或酯，（ii）含磷酸的衍生物，其中至少一个P-H 债券已被P-C键取代，（iii）衍生物的盐和/或酯，和（iv）它们的组合; （d）将复分解产物中的烯烃与复分解产物中的酯分离; 和（e）在醇存在下酯交酯化以形成酯交换产物和/或使烯烃氢化以形成完全或部分饱和的氢化产物。

公开(公告)号：US09175231B2

公开(公告)日：2015-11-03

申请号：US13335538

申请日：2011-12-22

申请人： Bruce E. Firth ,  Sharon E. Kirk ,  Vasudeo S. Gavaskar

发明人： Bruce E. Firth ,  Sharon E. Kirk ,  Vasudeo S. Gavaskar

IPC分类号： C10G3/00 ,  C07C6/02 ,  C07C67/02 ,  C07C1/20 ,  C07C1/213 ,  C10G45/00 ,  C10G45/58 ,  C10L1/02 ,  C10L1/08

CPC分类号： C10G45/00 ,  C10G45/58 ,  C10G2300/1014 ,  C10G2300/304 ,  C10G2300/308 ,  C10G2400/04 ,  C10G2400/08 ,  C10G2400/20 ,  C10G2400/22 ,  C10L1/026 ,  C10L1/08 ,  C10L2200/0469 ,  C10L2200/0476 ,  C10L2270/026 ,  C10L2270/04 ,  Y02P30/20

摘要： A method of refining a natural oil includes: (a) providing a feedstock that includes a natural oil; (b) reacting the feedstock in the presence of a metathesis catalyst to form a metathesized product that includes olefins and esters; (c) passivating residual metathesis catalyst with an agent selected from the group consisting of phosphorous acid, phosphinic acid, and a combination thereof; (d) separating the olefins in the metathesized product from the esters in the metathesized product; and (e) transesterifying the esters in the presence of an alcohol to form a transesterified product and/or hydrogenating the olefins to form a fully or partially saturated hydrogenated product. Methods for suppressing isomerization of olefin metathesis products produced in a metathesis reaction, and methods of producing fuel compositions are described.

摘要翻译： 精制天然油的方法包括：（a）提供包含天然油的原料; （b）在复分解催化剂存在下使原料反应以形成包含烯烃和酯的复分解产物; （c）用选自亚磷酸，次膦酸及其组合的试剂钝化残余复分解催化剂; （d）将复分解产物中的烯烃与复分解产物中的酯分离; 和（e）在醇存在下酯交酯化以形成酯交换产物和/或使烯烃氢化以形成完全或部分饱和的氢化产物。 描述了在复分解反应中产生的烯烃复分解产物的异构化抑制方法和制备燃料组合物的方法。

公开(公告)号：US20110196185A1

公开(公告)日：2011-08-11

申请号：US12701508

申请日：2010-02-05

申请人： Mark A. KRAWCZYK ,  Kristoffer E. POPP ,  Christopher P. NICHOLAS ,  Jennifer F. ABRAHAMIAN

发明人： Mark A. KRAWCZYK ,  Kristoffer E. POPP ,  Christopher P. NICHOLAS ,  Jennifer F. ABRAHAMIAN

IPC分类号： C07C6/02 ,  B01J21/12 ,  B01J23/30

CPC分类号： B01J23/30 ,  B01J21/08 ,  B01J35/1019 ,  B01J35/1023 ,  B01J37/0207 ,  B01J37/06 ,  C07C6/04 ,  C07C2521/08 ,  C07C2523/30 ,  Y02P20/52 ,  Y02P20/582 ,  C07C11/06

摘要： Acid washing of silica supports, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.

摘要翻译： 用于支撑的钨催化剂的二氧化硅载体的酸洗可改善所得催化剂的活性（即，在给定温度下的转化水平）用于烯烃的复分解，而不损害其对所需转化产物的选择性。 示例性催化剂和方法包括用于从包含乙烯和丁烯的烃原料生产有价值的轻质烯烃如丙烯的催化剂和方法。

公开(公告)号：US20110196184A1

公开(公告)日：2011-08-11

申请号：US12701503

申请日：2010-02-05

申请人： Kristoffer E. POPP ,  Mark A. KRAWCZYK ,  Christopher P. NICHOLAS ,  Jennifer F. ABRAHAMIAN

发明人： Kristoffer E. POPP ,  Mark A. KRAWCZYK ,  Christopher P. NICHOLAS ,  Jennifer F. ABRAHAMIAN

IPC分类号： C07C6/02 ,  B01J21/12 ,  B01J23/30

CPC分类号： B01J23/30 ,  B01J21/08 ,  B01J29/0341 ,  B01J35/023 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1061 ,  B01J37/0201 ,  B01J37/18 ,  C07C6/04 ,  C07C2521/08 ,  C07C2523/30 ,  Y02P20/52 ,  Y02P20/582 ,  Y02P30/42 ,  C07C11/06

摘要： Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 Å to about 170 Å, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.

摘要翻译： 用于负载型钨催化剂的表面积为约250m 2 / g至约600m 2 / g，平均孔径为约45至约为170的二氧化硅载体改善了所得催化剂的活性（即其转化率 在给定温度下的水平）用于烯烃的复分解，而不损害其对所需转化产物的选择性。 示例性催化剂和方法包括用于从包含乙烯和丁烯的烃原料生产有价值的轻质烯烃如丙烯的催化剂和方法。

公开(公告)号：US07868216B2

公开(公告)日：2011-01-11

申请号：US11315096

申请日：2005-12-23

申请人： Jean-Alain Chodorge ,  Christian Dupraz

发明人： Jean-Alain Chodorge ,  Christian Dupraz

IPC分类号： C07C6/02 ,  C07C5/25 ,  C07C2/06

CPC分类号： C07C11/06

摘要： A process for producing high purity propylene comprises: a step for dimerizing ethylene to 1-butene; a step for hydroisomerizing 1-butene to 2-butenes; and a step for metathesis of 2-butenes by ethylene. Advantageously, the ethylene used to produce the 1-butene and ethylene for metathesis derive from a steam cracking unit. To increase propylene production, the process can use a steam cracking or FCC C4cut as an additional butene source.

摘要翻译： 一种生产高纯度丙烯的方法包括：将乙烯二聚至1-丁烯的步骤; 将1-丁烯加氢异构化成2-丁烯的步骤; 以及乙烯复配2-丁烯的步骤。 有利地，用于制备用于复分解的1-丁烯和乙烯的乙烯来自蒸汽裂解装置。 为了增加丙烯生产，该方法可以使用蒸汽裂化或FCC C4cut作为附加的丁烯源。

公开(公告)号：US07608745B2

公开(公告)日：2009-10-27

申请号：US11981392

申请日：2007-10-31

申请人： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

发明人： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

IPC分类号： C07C4/04 ,  C07C6/02 ,  C07C15/073

CPC分类号： C07C15/073 ,  C07C2/66 ,  C07C6/00 ,  C07C6/04 ,  C07C11/06 ,  C10G2400/20 ,  C10G2400/30 ,  Y02P20/127

摘要： A process for producing propylene is provided which includes directing an ethylene stream from an ethylene reaction zone to a propylene reaction zone; directing a butene stream to the propylene reaction zone; reacting the ethylene stream with the butene stream in the propylene reaction zone to produce a propylene reaction stream; and subjecting the propylene reaction stream to a recovery operation to recover propylene. A processes is also provided for producing an alkylaromatic by directing an ethylene stream from a propylene reaction zone to an alkylaromatic reaction zone; directing an aromatic stream to the alkylaromatic reaction zone; reacting the ethylene stream with the aromatic stream in the alkylaromatic reaction zone to produce an alkylaromatic reaction stream; and subjecting the alkylaromatic reaction stream to a recovery operation to recover alkylaromatics. A process for producing propylene and an alkylaromatic is also provided.

摘要翻译： 提供一种生产丙烯的方法，其包括将乙烯流从乙烯反应区引导到丙烯反应区; 将丁烯流引导到丙烯反应区; 使乙烯流与丙烯反应区中的丁烯流反应，生成丙烯反应流; 并对丙烯反应流进行回收操作以回收丙烯。 还提供了通过将乙烯流从丙烯反应区引导到烷基芳族反应区来生产烷基芳族化合物的方法; 将芳族物流引导至烷基芳族反应区; 使所述乙烯流与所述芳族物流在所述烷基芳族反应区中反应以产生烷基芳族反应流; 并使烷基芳族反应物流进行回收操作以回收烷基芳族化合物。 还提供了生产丙烯和烷基芳族化合物的方法。