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公开(公告)号：US20240336544A1
公开(公告)日：2024-10-10
申请号：US18682200
申请日：2022-07-28
CPC分类号： C07C5/48 , B01J23/002 , B01J2523/55 , B01J2523/56 , B01J2523/64 , B01J2523/68 , C07C2523/20 , C07C2523/22 , C07C2523/28 , C07C2523/32
摘要： A feed stream including ethane is flowed to a purification unit that includes a first oxidative dehydrogenation catalyst. The feed stream is contacted with the first oxidative dehydrogenation catalyst at a first temperature to reduce a concentration of impurities in the feed stream to produce a purified feed stream. The purified feed stream is flowed to an oxidative dehydrogenation unit that includes a second oxidative dehydrogenation catalyst. The purified feed stream is contacted with the second oxidative dehydrogenation catalyst in the presence of oxygen at a second temperature greater than the first temperature to dehydrogenate ethane to produce a product stream that includes ethylene.
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公开(公告)号：US20240217900A1
公开(公告)日：2024-07-04
申请号：US18601930
申请日：2024-03-11
申请人： Virent, Inc.
CPC分类号： C07C4/18 , B01D3/143 , C07C1/22 , C07C5/11 , C07C7/005 , C07C7/04 , C07C2523/14 , C07C2523/28 , C07C2523/30 , C07C2523/44 , C07C2529/46
摘要： Processes, catalysts, and reactor systems for reforming heavy aromatic compounds (C11+) into C6-8 aromatic compounds are disclosed. Also disclosed are processes, catalysts, and reactor systems for producing aromatic compounds and liquid fuels from oxygenated hydrocarbons, such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like.
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公开(公告)号：US11660588B2
公开(公告)日：2023-05-30
申请号：US17083629
申请日：2020-10-29
发明人： Sang Il Lee , Ji Hoon Lee , Young Eun Cheon , Yeon Ho Kim
IPC分类号： C07C2/66 , B01J29/80 , B01J21/04 , B01J23/62 , B01J27/045 , B01J27/051 , B01J29/22 , B01J29/26 , B01J29/44 , B01J29/48 , B01J29/78 , B01J37/00 , B01J37/04 , B01J37/16 , B01J37/20 , B01J37/30 , C07C4/18 , C07C6/12 , C07C5/22 , C07C4/06 , C07C15/08 , C10G35/095 , B01J29/06
CPC分类号： B01J29/80 , B01J21/04 , B01J23/626 , B01J27/045 , B01J27/0515 , B01J29/22 , B01J29/26 , B01J29/44 , B01J29/48 , B01J29/7815 , B01J37/0018 , B01J37/04 , B01J37/16 , B01J37/20 , B01J37/30 , C07C2/66 , C07C4/06 , C07C4/18 , C07C5/222 , C07C6/123 , C07C6/126 , C07C15/08 , C10G35/095 , B01J2029/062 , B01J2229/186 , C07C2521/04 , C07C2523/28 , C07C2523/36 , C07C2523/42 , C07C2523/62 , C07C2529/18 , C07C2529/22 , C07C2529/26 , C07C2529/44 , C07C2529/74 , C07C2529/78 , C07C2529/80 , C10G2400/30 , Y02P20/52
摘要： Disclosed are a catalyst and a preparation method therefor, the catalyst being able to maintain a high production yield of C8 aromatic hydrocarbons in the process of converting a feedstock containing alkyl aromatics to C8 aromatic hydrocarbons such as mixed xylene through disproportionation/transalkylation/dealkylation while reducing a content of ethylbenzene in the products.
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公开(公告)号：US20190241488A1
公开(公告)日：2019-08-08
申请号：US16390523
申请日：2019-04-22
IPC分类号： C07C11/06 , B01J21/00 , C07C6/04 , C07C4/06 , B01J8/02 , B01J21/12 , B01J29/04 , B01J23/30 , B01J29/40
CPC分类号： C07C11/06 , B01J8/02 , B01J21/00 , B01J21/12 , B01J23/30 , B01J29/045 , B01J29/40 , B01J35/0006 , B01J35/002 , B01J35/1042 , B01J35/1061 , B01J37/0201 , C07C4/06 , C07C6/04 , C07C2521/12 , C07C2523/28 , C07C2523/30 , C07C2523/36 , C07C2529/40 , C07C2529/78 , Y02P20/52 , C07C11/04
摘要： Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
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公开(公告)号：US20190055176A1
公开(公告)日：2019-02-21
申请号：US15770522
申请日：2016-10-25
申请人： SHELL OIL COMPANY
CPC分类号： C07C5/48 , C07C7/04 , C07C7/11 , C07C51/215 , C07C51/25 , C07C51/48 , C07C2523/18 , C07C2523/20 , C07C2523/22 , C07C2523/28 , C07C2527/00 , C07C2527/057 , C07C9/06 , C07C11/04 , C07C53/08
摘要： The invention concerns a process for oxidative dehydrogenation of ethane. In the process an ethane comprising stream is fed to a distillation column to remove propane. The purified ethane stream is subjected to oxidative dehydrogenation using a catalyst comprising Mo/V/Sb, or Mo/V/Nb and Te or Sb in the orthorhombic M1 crystalline phase. The reactor effluent comprises ethylene. The effluent is washed with water to remove acetic acid. The acetic acid is recovered from the aqueous stream by means of solvent extraction.
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公开(公告)号：US20180282246A1
公开(公告)日：2018-10-04
申请号：US15525330
申请日：2015-11-09
IPC分类号： C07C5/48 , C07C11/167 , C07C6/04 , C07C7/08 , C07C7/11 , C07C2/06 , C07C2/56 , C07C11/06 , C07C9/16
CPC分类号： C07C5/48 , C07C2/06 , C07C2/10 , C07C2/56 , C07C2/62 , C07C6/04 , C07C7/08 , C07C7/11 , C07C9/16 , C07C11/06 , C07C11/167 , C07C2521/04 , C07C2523/18 , C07C2523/28 , C07C2523/30 , C07C2523/36 , C07C2523/755 , C07C2527/043 , C07C2527/1206 , C07C2527/126 , C10G7/06 , C10G29/205 , C10G53/04 , C10G2300/1092 , C10G2300/305 , C10G2400/02 , C07C11/08 , C07C9/10 , C07C9/21 , C07C11/02
摘要： The invention relates to a process for preparing 1,3-butadiene from n-butenes, comprising the steps of: A) providing an input gas stream a comprising butanes, 1-butene, 2-butene and isobutene, with or without 1,3-butadiene, from a fluid catalytic cracking plant; B) removing isobutene from the input gas stream a, giving a stream b comprising butanes, 1-butene and 2-butene, with or without 1,3-butadiene; C) feeding the stream b comprising butanes, 1-butene and 2-butene and optionally an, oxygenous gas and optionally water vapor into at least one dehydrogenating zone and dehydrogenating 1-butene and 2-butene to 1,3-butadiene, giving a product gas stream c comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with high-boiling secondary components, with or without carbon oxides and with or without inert gases; D) cooling and compressing the product gas stream c, giving at least one aqueous condensate stream d1 and a gas stream d2 comprising 1,3-butadiene, butanes, 2-butene and water vapor, with or without oxygen, with low-boiling hydrocarbons, with or without carbon oxides and with or without inert gases; Ea) removing uncondensable and low-boiling gas constituents comprising low-boiling hydrocarbons, with or without oxygen, with or without carbon oxides and with or without inert gases, as gas stream e2 from the gas stream d2 by absorbing the C4 hydrocarbons comprising 1,3-butadiene, butanes and 2-butene in an absorbent, giving an absorbent stream laden with C4 hydrocarbons and the gas stream e2, and Eb) subsequently desorbing the C4 hydrocarbons from the laden absorbent stream, giving a C4 hydrocarbon stream e1; F) separating the C4 hydrocarbon stream e1 by extractive distillation with a 1,3-butadiene-selective solvent into a stream f1 comprising 1,3-butadiene and the selective solvent and a stream f2 comprising butanes and 2-butene, wherein at least 90% of the 1-butene present in stream b is converted in step C) and a product stream f2 comprising butanes and 2-butene is obtained in step F.
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公开(公告)号：US20180258011A1
公开(公告)日：2018-09-13
申请号：US15946077
申请日：2016-10-14
CPC分类号： C07C2/74 , C07C2/66 , C07C5/333 , C07C5/367 , C07C6/06 , C07C6/126 , C07C2521/02 , C07C2521/04 , C07C2521/06 , C07C2521/08 , C07C2523/02 , C07C2523/04 , C07C2523/06 , C07C2523/10 , C07C2523/14 , C07C2523/18 , C07C2523/26 , C07C2523/28 , C07C2523/30 , C07C2523/34 , C07C2523/36 , C07C2523/40 , C07C2523/42 , C07C2523/44 , C07C2523/46 , C07C2523/62 , C07C2523/72 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C07C2529/08 , C07C2529/18 , C07C2529/70 , C07C2601/14 , C07C13/28 , C07C15/50 , C07C15/14
摘要： A process for producing phenylstyrene comprises contacting benzene with hydrogen in the presence of a hydroalkylation catalyst under conditions effective to produce a hydroalkylation product comprising cyclohexylbenzene. At least part of the cyclohexylbenzene is then contacted with ethylbenzene in the presence of a transalkylation catalyst under conditions effective to produce a transalkylation product comprising cyclohexylethylbenzene and/or with ethylene in the presence of an alkylation catalyst under conditions effective to produce an alkylation product comprising cyclohexylethylbenzene. At least part of the cyclohexylethylbenzene is then contacted with a dehydrogenation catalyst under conditions effective to produce a dehydrogenation product comprising phenylstyrene.
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公开(公告)号：US20180208527A1
公开(公告)日：2018-07-26
申请号：US15866772
申请日：2018-01-10
CPC分类号： C07C11/06 , B01J8/02 , B01J21/12 , B01J23/30 , B01J29/045 , B01J29/40 , B01J35/0006 , B01J35/002 , B01J35/1042 , B01J35/1061 , B01J37/0201 , C07C4/06 , C07C6/04 , C07C2521/12 , C07C2523/28 , C07C2523/30 , C07C2523/36 , C07C2529/40 , C07C2529/78 , Y02P20/52 , C07C11/04
摘要： Processes and multiple-stage catalyst systems are disclosed for producing propylene from butene by at least partially metathesizing butene in a metathesizing reaction zone having a metathesis catalyst to form a metathesis reaction product and at least partially cracking the metathesis reaction product in a cracking reaction zone having a cracking catalyst to form a cracking reaction product that includes propylene. The metathesis catalyst may be a mesoporous silica-alumina catalyst support impregnated with metal oxide having a mesoporous silica-alumina catalyst support comprising from 5 weight percent to 50 weight percent alumina. The cracking catalyst may be a MFI structured silica-containing catalyst. The cracking reaction zone may be downstream of the metathesis reaction zone.
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公开(公告)号：US20180193827A1
公开(公告)日：2018-07-12
申请号：US15839947
申请日：2017-12-13
CPC分类号： B01J37/12 , B01J23/002 , B01J23/28 , B01J27/0576 , B01J35/002 , B01J35/006 , B01J35/1009 , B01J35/1014 , B01J37/0009 , B01J37/009 , B01J37/031 , B01J37/04 , B01J37/06 , B01J37/08 , B01J37/088 , B01J37/10 , B01J2523/00 , C07C5/3332 , C07C5/48 , C07C2523/20 , C07C2523/22 , C07C2523/28 , C07C2527/057 , Y02P20/52 , B01J2523/55 , B01J2523/56 , B01J2523/64 , B01J2523/68 , C07C11/04
摘要： Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining and treating the resulting catalyst with the equivalent amount of peroxide after calcining.
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公开(公告)号：US10005079B2
公开(公告)日：2018-06-26
申请号：US15314853
申请日：2015-05-27
申请人： L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude , Centre National de la Recherche Scientifique
发明人： Marie Basin , Caroline Bertail , Pascal Del-Gallo , Daniel Gary , Amara Fezoua , Nik Lygeros , Clémence Nikitine , Isabelle Pitault , Frédéric Bornette
IPC分类号： B01J21/04 , B01J23/04 , B01J23/10 , B01J23/28 , B01J23/42 , B01J23/44 , B01J23/72 , B01J23/745 , B01J23/755 , B01J23/881 , B01J23/882 , B01J23/883 , B01J23/885 , B01J35/00 , B01J35/02 , B01J35/10
CPC分类号： B01J35/026 , B01J8/0214 , B01J19/30 , B01J23/28 , B01J23/56 , B01J23/74 , B01J35/023 , B01J35/04 , B01J35/10 , B01J35/1028 , B01J2208/00539 , B01J2219/30265 , B01J2219/30416 , B01J2219/30475 , B01J2219/3083 , B01J2219/312 , C01B3/40 , C01B2203/0233 , C01B2203/0238 , C01B2203/0244 , C01B2203/0261 , C01B2203/0266 , C01B2203/1217 , C01B2203/1223 , C01B2203/1229 , C01B2203/1235 , C01B2203/1241 , C01B2203/1247 , C07C1/0425 , C07C2521/04 , C07C2521/06 , C07C2521/10 , C07C2523/02 , C07C2523/10 , C07C2523/28 , C07C2523/42 , C07C2523/44 , C07C2523/46 , C07C2523/72 , C07C2523/745 , C07C2523/75 , C07C2523/755 , C10G35/06 , C10G35/085 , Y02P20/142 , Y02P20/52 , C07C9/04
摘要： A catalyst for catalytic reactors of which the outer shape is a helix with n blades, where n is greater than or equal to 1, wherein the stack void fraction percentage is between 75% and 85% and the surface area/volume ratio is greater than 1000 square meters/square meters.
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