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公开(公告)号：US20240308938A1
公开(公告)日：2024-09-19
申请号：US18575940
申请日：2022-07-05
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Saurabh S. Maduskar , Keith H. Kuechler , Xiaoying Bao
CPC classification number: C07C5/325 , B01J8/0278 , B01J8/0285 , B01J23/02 , B01J23/626 , B01J35/394 , C07C7/005 , B01J2208/00362 , C07C2521/10 , C07C2523/62
Abstract: A method for forming an olefin, the method including: introducing a hydrocarbon feed stream into a reactor including a dehydrogenation catalyst; reacting the hydrocarbon feed stream with a dehydrogenation catalyst in the reactor to form a high temperature dehydrogenated product, the high temperature dehydrogenated product including at least a portion of the dehydrogenation catalyst; separating at least a portion of the dehydrogenation catalyst from the high temperature dehydrogenated product in a primary separation device and a secondary separation device downstream of and in fluid communication with the primary separation device; following the exit of high temperature dehydrogenation product from the secondary separation device, combining the high temperature dehydrogenation product with a quench stream to cool the high temperature dehydrogenation product and form an intermediate temperature dehydrogenation product, wherein the quench stream includes a hydrocarbon; and cooling the intermediate temperature dehydrogenation product to form a cooled dehydrogenation product.
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公开(公告)号：US10294178B2
公开(公告)日：2019-05-21
申请号：US15551839
申请日：2016-01-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Keith H. Kuechler , Jörg F. W. Weber , Ashley J. Poucher , Jason D. Davis
IPC: C07C7/08 , C07C7/04 , C07C7/12 , C07C37/80 , C07C37/82 , C07C39/04 , C07C45/79 , C07C45/82 , C07C45/83 , C07C49/403
Abstract: In a process for separating a mixture comprising cyclohexanone and phenol, a solid-phase basic material, such as basic ion-exchange resin, is used to remove acid and/or sulfur from the mixture prior to separation. The process results in reduced amount of contamination such as cyclic ethers in the cyclohexanone and/or phenol products.
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公开(公告)号：US20160368844A1
公开(公告)日：2016-12-22
申请号：US14901601
申请日：2014-03-07
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Jihad M. Dakka , Charles M. Smith , Kun Wang , Francisco M. Benitez , Roberto Garcia , John W. Chu , Keith H. Kuechler , Chuansheng Bai
CPC classification number: C07C29/20 , B01J21/04 , B01J21/08 , B01J23/14 , B01J23/42 , B01J23/44 , B01J23/626 , B01J35/026 , B01J35/1019 , B01J35/1042 , B01J35/1061 , C07C29/145 , C07C45/006 , C07C2601/14 , C07C35/08 , C07C49/403
Abstract: In a process for producing a mixture of cyclohexanone and cyclohexanol, a feed comprising cyclohexanone is contacted with hydrogen in the presence of a hydrogenation catalyst under hydrogenation conditions effective to convert part of the cyclohexanone in the feed into cyclohexanol and thereby produce a hydrogenation product containing cyclohexanone and cyclohexanol. A mixture of cyclohexanone and cyclohexanol is then obtained from the hydrogenation product.
Abstract translation: 在制备环己酮和环己醇的混合物的方法中，在加氢催化剂存在下，在氢化条件下，将环己酮的进料与氢气接触，有效地将进料中的一部分环己酮转化为环己醇，从而产生含有环己酮的氢化产物 和环己醇。 然后从氢化产物中获得环己酮和环己醇的混合物。
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公开(公告)号：US09181165B2
公开(公告)日：2015-11-10
申请号：US14394455
申请日：2013-04-09
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Keith H. Kuechler , Francisco M. Benitez , Krystle J. Emanuele , Christopher L. Becker , John L. Heidman, Jr.
CPC classification number: C07C49/403 , B01D3/40 , C07C37/08 , C07C37/58 , C07C37/80 , C07C45/53 , C07C45/83 , C07C2601/14 , C07C39/04
Abstract: In a process for separating a mixture comprising cyclohexanone and phenol, at least a portion of the mixture is distilled in the presence of a solvent including at least two alcoholic hydroxyl groups attached to non-adjacent saturated carbon atoms, water, and in the presence or absence of a hemiketal defined by the formula (I) or the formula (II): wherein R1, the same or different at each occurrence, is independently an alkylene group having from 2 to 10 carbon atoms, R2 is an alkylene group having from 4 to 10 carbon atoms and/or R3 is hydrogen or the following group: and in the presence or absence of an enol-ether derived from the hemiketal defined by the formula (I) or the formula (II), wherein the total concentration of the hemiketal and enol-ether, expressed in term of weight percentage of the total weight of the feed to the distilling step, is at most 0.01%.
Abstract translation: 在分离包含环己酮和苯酚的混合物的方法中，至少一部分混合物在溶剂存在下蒸馏，所述溶剂包括至少两个连接到不相邻饱和碳原子上的醇羟基，水和存在或不存在 不存在由式（I）或式（II）定义的半缩酮化合物：其中每次出现相同或不同的R 1独立地为具有2至10个碳原子的亚烷基，R 2为具有4 至10个碳原子和/或R 3为氢或以下基团：并且在存在或不存在衍生自由式（I）或式（II）定义的半缩酮的烯醇 - 醚的情况下，其中， 半缩酮和烯醇醚，以蒸馏步骤的进料总重量的重量百分比表示，至多为0.01％。
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公开(公告)号：US09169172B2
公开(公告)日：2015-10-27
申请号：US14394524
申请日：2013-04-10
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Tan-Jen Chen , Travis A. Reine , Keith H. Kuechler , Terry E. Helton , Jihad M. Dakka
IPC: C07C45/53 , C07C37/08 , C07C2/66 , C07C5/05 , C07C2/74 , C07C5/03 , C07C407/00 , C07C7/163 , B01J23/44 , B01J23/46 , B01J23/75 , B01J23/755 , B01J35/00 , B01J35/08 , B01J37/00 , C07C409/14 , B01J21/04
CPC classification number: C07C5/05 , B01J21/04 , B01J23/44 , B01J23/462 , B01J23/75 , B01J23/755 , B01J35/008 , B01J35/08 , B01J37/0009 , C07C2/74 , C07C5/03 , C07C7/163 , C07C37/08 , C07C45/53 , C07C407/00 , C07C409/14 , C07C2521/04 , C07C2523/44 , C07C2601/14 , Y02P20/52 , C07C13/28 , C07C49/403 , C07C39/04
Abstract: The present invention relates to hydrogenation processes including: contacting a first composition with hydrogen under hydrogenation conditions, in the presence of an eggshell hydrogenation catalyst, wherein the first composition has: (i) greater than about 50 wt % of cyclohexylbenzene, the wt % based upon the total weight of the first composition; and (ii) greater than about 0.3 wt % of cyclohexenylbenzene, the wt % based upon the total weight of the first composition; and thereby obtaining a second composition having less cyclohexenylbenzene than the first composition. Other hydrogenation processes are also described.
Abstract translation: 本发明涉及氢化方法，包括：在加氢条件下，在蛋壳氢化催化剂存在下使第一组合物与氢接触，其中第一组合物具有：（i）大于约50重量％的环己基苯，基于重量％ 基于第一组合物的总重量; 和（ii）大于约0.3重量％的环己烯基苯，所述wt％基于第一组合物的总重量; 从而获得比第一组合物少的环己烯基苯的第二组合物。 还描述了其它氢化方法。
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Patent Agency Ranking
公开(公告)号：US20150080545A1
公开(公告)日：2015-03-19
申请号：US14480363
申请日：2014-09-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Lorenzo C. DeCaul , Keith H. Kuechler , Neeraj Sangar , Michael Salciccioli , Alan A. Galuska , Gary D. Mohr
IPC: C08G63/185 , C08G63/199 , C07C51/16 , C07C63/333 , C07C67/08 , C07C15/14
CPC classification number: C08G63/185 , C07C2/74 , C07C5/367 , C07C51/265 , C07C2101/14 , C07C2601/14 , C08G63/199 , C08J5/18 , C08J2327/06 , C08K2201/014 , D21H27/20 , H01B3/443 , Y10T428/2964 , C08K5/10 , C08L27/06 , C07C63/333 , C07C63/26 , C07C13/28 , C07C15/14
Abstract: In a process for producing 3,4′ and/or 4,4′ dimethyl-substituted biphenyl compounds, a feed comprising toluene is contacted with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation reaction product comprising (methylcyclohexyl)toluenes. At least part of the hydroalkylation reaction product is dehydrogenated in the presence of a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising a mixture of dimethyl-substituted biphenyl isomers. The dehydrogenation reaction product is then separated into at least a first stream containing at least 50% of 3,4′ and 4,4′ dimethylbiphenyl isomers by weight of the first stream and at least one second stream comprising one or more 2,x′ (where x′ is 2′, 3′, or 4′) and 3,3′ dimethylbiphenyl isomers.
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公开(公告)号：US20150011812A1
公开(公告)日：2015-01-08
申请号：US14373690
申请日：2013-01-28
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christopher L. Becker , Hari Nair , James R. Lattner , Keith H. Kuechler
CPC classification number: C07C2/74 , C07C5/367 , C07C37/08 , C07C45/53 , C07C407/00 , C07C2529/08 , C07C2529/18 , C07C2529/70 , C07C2601/14 , Y02P20/582 , C07C409/14 , C07C39/04 , C07C49/403 , C07C13/28
Abstract: In a process for producing cyclohexylbenzene, hydrogen and benzene are introduced to a first hydroalkylation reaction zone which contains a hydroalkylation catalyst and which is operated under at least partly liquid phase conditions sufficient to effect hydroalkylation of benzene to produce a mixed liquid/vapor phase effluent comprising cyclohexylbenzene and unreacted benzene, wherein at least a portion of the unreacted benzene is in the vapor phase. At least a portion of the effluent is cooled to condense a liquid phase stream containing at least some of the cyclohexylbenzene in the effluent portion and leave a residual stream containing at least some of the unreacted benzene and cyclohexylbenzene. At least a portion of the liquid stream is recycled to the first hydroalkylation reaction zone or to contact the mixed phase effluent exiting the first hydroalkylation reaction zone. Other methods of cooling the reaction effluent are disclosed.
Abstract translation: 在生产环己基苯的方法中，将氢和苯引入含有加氢烷基化催化剂的第一加氢烷基化反应区，其在至少部分液相条件下操作，该条件足以使苯进行加氢烷基化以产生混合液/ 环己基苯和未反应的苯，其中至少一部分未反应的苯处于气相。 将至少一部分流出物冷却以冷凝流出物部分中含有至少一些环己基苯的液相物流，并留下含有至少一些未反应的苯和环己基苯的残留物流。 将液体物流的至少一部分再循环到第一加氢烷基化反应区或接触离开第一加氢烷基化反应区的混合相流出物。 公开了冷却反应流出物的其它方法。
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公开(公告)号：US20240294446A1
公开(公告)日：2024-09-05
申请号：US18578480
申请日：2022-07-20
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Christian A. Diaz Urrutia , Xiaoying Bao , Keith H. Kuechler , Saurabh S. Maduskar , Arun K. Sharma , Russell T. Clay
IPC: C07C5/32
CPC classification number: C07C5/325 , C07C2523/42 , C07C2523/50 , C07C2523/52 , C07C2523/62 , C07C2523/89
Abstract: A hydrocarbon can be contacted with dehydrogenation catalyst particles to produce an effluent that can include coked catalyst particles and dehydrogenated hydrocarbon(s). A first stream rich in coked catalyst particles and a second stream rich in dehydrogenated hydrocarbon(s) and containing entrained catalyst particles can be separated from the effluent. The second stream can be contacted with a first quench medium to produce a cooled stream. The cooled stream can be contacted with a second quench medium within a quench tower. A gaseous stream that includes the dehydrogenated hydrocarbon(s), a first quench medium stream, and a slurry stream that includes the second quench medium and the entrained catalyst particles can be separated from the tower. The first quench medium can be recycled. The entrained catalyst particles can be separated from the slurry to provide recovered second quench medium and recovered entrained catalyst particles. The recovered second quench medium can be recycled.
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公开(公告)号：US20170275226A1
公开(公告)日：2017-09-28
申请号：US15504217
申请日：2015-08-03
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Keith H. Kuechler , Jörg F.W. Weber , Ashley J. Poucher , Jason D. Davis , Christopher L. Becker , Jihad M. Dakka
CPC classification number: C07C45/006 , C07C7/005 , C07C7/04 , C07C7/12 , C07C37/74 , C07C37/82 , C07C45/79 , C07C45/82 , C07C2601/14 , Y02P20/52 , C07C49/403 , C07C39/04 , C07C13/28
Abstract: Disclosed are processes for making cyclohexanone from a mixture comprising phenol, cyclohexanone, cyclohexylbenzene, and an S-containing component, comprising a step of removing at least a portion of the S-containing component to reduce poisoning of a hydrogenation catalyst used for hydrogenating phenol to cyclohexanone.
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公开(公告)号：US09718744B2
公开(公告)日：2017-08-01
申请号：US15023123
申请日：2014-09-26
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Gabor Kiss , Thomas E. Green , Keith H. Kuechler
IPC: C07C45/53 , C07C37/08 , C07C2/74 , B01J37/18 , B01J29/74 , C07C407/00 , B01J38/10 , B01J29/76 , B01J29/90 , B01J29/064 , C07C29/00
CPC classification number: C07C2/74 , B01J29/064 , B01J29/7476 , B01J29/7676 , B01J29/90 , B01J37/18 , B01J38/10 , B01J2229/186 , B01J2229/34 , B01J2229/42 , C07C29/00 , C07C37/08 , C07C45/53 , C07C407/00 , C07C2529/70 , C07C2529/74 , C07C2601/14 , Y02P20/52 , Y02P20/584 , C07C49/403 , C07C39/04 , C07C13/28 , C07C409/14
Abstract: Disclosed is a hydroalkylation process in which the hydroalkylation catalyst is activated in the presence of a flowing fluid comprising hydrogen and a condensable agent. The presence of the condensable agent enables fast, effective activation of the hydroalkylation catalyst precursor in a cost-effective manner. It also yields superior catalyst performance.
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