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公开(公告)号：US11820723B2
公开(公告)日：2023-11-21
申请号：US17765024
申请日：2020-09-16
发明人： Aaron W. Peters , William J. Knaeble , Allen W. Burton , Ivy D. Johnson , Christopher G. Oliveri , Reuben Britto
CPC分类号： C07C2/66 , B01J29/7007 , C07C2529/06
摘要： A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.
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公开(公告)号：US11673846B2
公开(公告)日：2023-06-13
申请号：US16271386
申请日：2019-02-08
发明人： Tan-Jen Chen , Seth M. Washburn
CPC分类号： C07C2/66 , B01J29/0308 , B01J29/70 , B01J29/7038 , C07C2/864 , C07C2529/70 , Y02P20/52 , C07C2/864 , C07C15/08
摘要： A process is described for producing paraxylene, in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a Constraint Index≤5, and the alkylation conditions comprise a temperature less than 500° C. Paraxylene may then be recovered from the alkylated aromatic product.
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公开(公告)号：US20230173476A1
公开(公告)日：2023-06-08
申请号：US18163647
申请日：2023-02-02
CPC分类号： B01J31/1815 , B01J31/189 , B01J31/2226 , B01J31/2291 , C07C2/66 , B01J31/00 , C07C5/03 , B01J2231/46 , B01J2531/0244 , B01J2531/822 , B01J2540/225 , B01J2540/22
摘要： Embodiments of the present disclosure provide for Rh(I) catalysts, methods of making alkenyl substituted arenes (e.g., allyl arene, vinyl arene, and the like), methods of making alkyl substituted arenes, and the like.
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4.发明授权公开(公告)号：US11621059B2
公开(公告)日：2023-04-04
申请号：US17325310
申请日：2021-05-20
申请人： CHEVRON U.S.A. INC.
发明人： Toni Zhang Miao , Huping Luo , Hye-Kyung Cho Timken , Eddy Lee , Bong-Kyu Chang
IPC分类号： G16C20/70 , G16C10/00 , G16C20/30 , C07C2/76 , G01N21/3577 , G01N33/28 , C07C2/66 , C07C2/64 , G01N21/35 , C07C2/68 , C07C2/70
摘要： A method is provided for predicting conjunct polymer concentration in spent ionic liquid during a continuous hydrocarbon conversion process.
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公开(公告)号：US20220371972A1
公开(公告)日：2022-11-24
申请号：US17765024
申请日：2020-09-16
发明人： Aaron W. Peters , William J. Knaeble , Allen W. Burton , Ivy D. Johnson , Christopher G. Oliveri , Reuben Britto
摘要： A process for producing a monoalkylated benzene comprises the step of contacting benzene with a mixture comprising dialkylated and trialkylated benzenes in the presence of a transalkylation catalyst composition under transalkylation conditions effective to convert at least part of the dialkylated and trialkylated benzene to monoalkylated benzene, wherein the transalkylation catalyst, composition comprises zeolite beta having an external surface in excess of 350 m2/g as determined by the t-plot method for nitrogen physisorption.
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公开(公告)号：US20220234034A1
公开(公告)日：2022-07-28
申请号：US17157563
申请日：2021-01-25
申请人： China Energy Investment Corporation Limited , National Institute of Clean-and-Low-Carbon Energy
发明人： Aihua ZHANG , Hui WANG , Junjun SHAN , Joshua MILES , Lisa NGUYEN , Louis GUILLEN , Amin SARDAR , Hua LIU
摘要： The present disclosure provides a modified catalyst, and preparation method and a method for producing aromatic hydrocarbons by aromatization of olefins using the modified catalyst. The modified catalyst comprises an acidic molecular sieve and an olefin aromatization active metal component, the total acid amount of the catalyst as measured by NH3-TPD method is not higher than 0.35mmo1/g, and ratio of the strong acid to weak acid is within a range of 0.8-1.2.
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公开(公告)号：US20220033323A1
公开(公告)日：2022-02-03
申请号：US17312307
申请日：2019-12-09
发明人： Viswanath Kotra , Pavankumar Aduri , Vibhuti Dhukande , Mangesh Raghunath Sakhalkar , Uday Meghashyam Ratnaparkhi , Rahul Kumbhar , Suresh Iyengar , Rahul Mahadeo Dhawade , Romal Chafle , Parasuveera Uppara , Gordhan Das Goyal
摘要： The present disclosure relates to a process for preparing linear alkyl benzne (LAB). The process comprises alkylation of benzene with an alkylating agent in the presence of an ionic liquid to obtain a first product mixture comprising a first organic phase and a first aqueous phase comprising first partially spent ionic liquid. The first organic phase is deacidified and fractionally distilled to obtain a fraction comprising LAB and a fraction comprising HAB. The fraction comprising HAB is transalkylated with benzene in the presence of the ionic liquid to obtain a second product mixture comprising a second organic phase comprising LAB and a second aqueous phase comprising second partially spent ionic liquid. The partially spent ionic liquids are regenerated, and reused in the steps of alkylation or transalkylation for at least 6 cycles.
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公开(公告)号：US11078133B2
公开(公告)日：2021-08-03
申请号：US16705791
申请日：2019-12-06
申请人： UOP LLC
发明人： Gregory B. Kuzmanich , Richard A. Johnson, II , Joseph A. Montalbano , Feng Xu , Robert E. Tsai
摘要： Processes and apparatuses for alkylating aromatic hydrocarbons with an alkylating reagent to produce an alkylated aromatic product are described. The processes and apparatuses use a riser reactor operated at a superficial velocity of 10 m/s to 25 m/s to produce the alkylated aromatic product. In some embodiments, a combination of steam and aromatic hydrocarbon is used to lift the catalyst.
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9.发明申请公开(公告)号：US20210179517A1
公开(公告)日：2021-06-17
申请号：US17123360
申请日：2020-12-16
摘要： Apparatus and process for converting aromatic compounds, comprising/using: a fractionating train (4-7) suitable for extracting at least one benzene-comprising fraction (22), one toluene-comprising fraction (23) and one fraction (24) comprising xylenes and ethylbenzene from the feedstock (2); a xylene separating unit (10) suitable for treating the fraction comprising xylenes and ethylbenzene and producing a para-xylene-comprising extract (39) and a raffinate (40) comprising ortho-xylene, meta-xylene and ethylbenzene; an isomerizing unit (11) for treating the raffinate and producing a para-xylene-enriched isomerizate (42), which is sent to the fractionating train; and an alkylating reaction section (13) for treating at least part of the benzene-comprising fraction with an ethylene source (30) and producing an alkylation effluent (31) comprising ethylbenzene, which is sent to the isomerizing unit.
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10.发明申请公开(公告)号：US20210108154A1
公开(公告)日：2021-04-15
申请号：US17080872
申请日：2020-10-27
IPC分类号： C11D1/22 , C07C5/32 , C10G45/00 , C10G45/02 , C10G65/04 , C10G1/00 , C10G1/10 , C10G3/00 , C07C2/66 , C11D1/37 , C11D17/04 , C07B41/02 , C07B41/04 , C07B45/04 , C07C303/02
摘要： The present invention relates generally to methods for producing detergent compounds from waste plastic feedstocks. More specifically, the invention relates to methods for producing detergent intermediates, including alkylbenzenes, paraffins, olefins, oxo alcohols, and surfactant derivatives thereof from waste plastic feedstock.
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