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公开(公告)号：US20210122688A1
公开(公告)日：2021-04-29
申请号：US16605387
申请日：2018-04-19
Applicant: ExxonMobil Chemical Patents inc.
Inventor： Catherine M. Dorsi , Todd E. Detjen , Mayank Shekhar , Anthony Go
Abstract: Systems and methods are provided for integration of an aromatic formation process for converting non-aromatic hydrocarbon to an aromatic product and subsequent methylating of a portion of the aromatic product to produce a methylated product, with improvements in the aromatic formation process and/or the methylation process based on integrating portions of the secondary processing trains associated with the aromatic formation process and the methylation process. The aromatic formation process and methylation process can be used, for example, for integrated production of specialty aromatics or gasoline blending components.
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公开(公告)号：US10196325B2
公开(公告)日：2019-02-05
申请号：US14965099
申请日：2015-12-10
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Nikolaos Soultanidis , Mayank Shekhar , John S. Coleman
IPC: C07C1/20 , C07C27/00 , B01J29/40 , B01J23/656 , C07C29/151
Abstract: The present invention relates to a multistage process and catalyst system therefor to convert syngas to aromatics. In a first stage, syngas is converted to a C1-C4 alcohol mixture by contacting syngas with a first catalyst comprising rhodium or copper at moderate temperature. In a second stage, the C1-C4 alcohol mixture is converted into an aromatic product by contact with a second catalyst comprising a molecular sieve and at least one Group 8-14 element, the molecular sieve having a Constraint Index about 1 to 12 and a silica to alumina ratio of about 10 to 100 at effective conversion conditions. The final aromatic product is rich in benzene, toluene, and xylenes (e.g. greater than 50% aromatics on a hydrocarbon basis).
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公开(公告)号：US09957203B2
公开(公告)日：2018-05-01
申请号：US14876952
申请日：2015-10-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul F. Keusenkothen , Seth M. Washburn , Neeraj Sangar , Nikolaos Soultanidis , Mayank Shekhar
CPC classification number: C07C1/20 , B01J8/0221 , B01J8/0278 , B01J8/0285 , B01J8/06 , B01J8/1863 , B01J8/26 , B01J2208/00309
Abstract: A catalyst system and processes for combined aromatization and selective hydrogen combustion of oxygenated hydrocarbons are disclosed. The catalyst system contains at least one aromatization component and at least one selective hydrogen combustion component. The process is such that the yield of hydrogen is less than the yield of hydrogen when contacting the hydrocarbons with the aromatization component alone.
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公开(公告)号：US09815749B2
公开(公告)日：2017-11-14
申请号：US15240830
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul F. Keusenkothen , Mohsen N. Harandi , John S. Buchanan , Mayank Shekhar
CPC classification number: C07C2/76 , B01J29/405 , B01J29/44 , B01J29/46 , B01J29/48 , B01J29/655 , B01J29/67 , B01J29/68 , B01J29/69 , B01J29/708 , B01J29/7084 , B01J29/7088 , B01J29/7092 , B01J29/7096 , B01J29/7461 , B01J29/7469 , B01J29/7476 , B01J29/7484 , B01J29/7492 , B01J29/7661 , B01J29/7669 , B01J29/7676 , B01J29/7684 , B01J29/7692 , B01J29/7861 , B01J29/7869 , B01J29/7876 , B01J29/7884 , B01J29/7892 , B01J29/80 , B01J29/87 , B01J29/90 , B01J35/023 , B01J38/14 , B01J2229/18 , B01J2229/32 , C07C1/20 , C07C2/64 , C07C2/78 , C07C2/82 , C07C5/333 , C07C2529/40 , C07C2529/44 , C07C2529/46 , C07C2529/48 , C07C2529/65 , C07C2529/67 , C07C2529/68 , C07C2529/69 , C07C2529/70 , C07C2529/74 , C07C2529/76 , C07C2529/78 , Y02P20/584 , C07C15/02 , C07C11/02
Abstract: The invention relates to the production of aromatic hydrocarbon by the conversion of a feed comprising saturated hydrocarbon. At least a portion of the saturated hydrocarbon is converted to olefinic hydrocarbon. Aromatic hydrocarbon is produced from at least a portion of the olefinic hydrocarbon using at least one dehydrocyclization catalyst comprising dehydrogenation and molecular sieve components.
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公开(公告)号：US09809505B1
公开(公告)日：2017-11-07
申请号：US15646889
申请日：2017-07-11
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： John S. Buchanan , Stephen H. Brown , Lorenzo C. DeCaul , Brett T. Loveless , Rohit Vijay , Stephen J. McCarthy , Michel Daage , Mayank Shekhar
CPC classification number: C07C1/20 , C07C1/2076 , C07C2529/44 , C10G3/49 , C10G2400/30 , C07C15/00
Abstract: Methods are provided for improving the yield of aromatics during conversion of oxygenate feeds. An oxygenate feed can contain a mixture of oxygenate compounds, including one or more compounds with a hydrogen index of less than 2, so that an effective hydrogen index of the mixture of oxygenates is between about 1.4 and 1.9. Methods are also provided for converting a mixture of oxygenates with an effective hydrogen index greater than about 1 with a pyrolysis oil co-feed. The difficulties in co-processing a pyrolysis oil can be reduced or minimized by staging the introduction of pyrolysis oil into a reaction system. This can allow varying mixtures of pyrolysis oil and methanol, or another oxygenate feed, to be introduced into a reaction system at various feed entry points.
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Patent Agency Ranking
公开(公告)号：US20170305812A1
公开(公告)日：2017-10-26
申请号：US15469725
申请日：2017-03-27
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul F. Keusenkothen , Samia IIias , John Scott Buchanan , Mayank Shekhar , Reyyan Koc-Karabocek , Teng Xu
CPC classification number: C07C2/76 , B01J27/22 , B01J29/061 , B01J29/405 , B01J29/48 , B01J29/85 , B01J37/0009 , B01J37/28 , B01J2229/18 , C01B39/06 , C07C2529/40 , C07C2529/85 , C10G35/065 , C10G35/085 , Y02P20/52 , C07C15/04 , C07C15/06 , C07C15/08 , C07C15/24
Abstract: The invention relates to catalytic aromatization, e.g., for the conversion of non-aromatic hydrocarbon to higher-value aromatic hydrocarbon, to catalysts useful for such aromatization, to methods for making such catalysts, and to systems and apparatus for carrying out aromatization in the presence of the catalyst.
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公开(公告)号：US09790139B2
公开(公告)日：2017-10-17
申请号：US14560953
申请日：2014-12-04
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Nikolaos Soultanidis , Mayank Shekhar , John S. Coleman , Jeevan S. Abichandani , Stephen J. McCarthy
IPC: C07C1/24 , C07C7/00 , C07C1/22 , C07C2/64 , C07C5/27 , C07C6/06 , C07C6/00 , C10G3/00 , C10G29/20
CPC classification number: C07C1/22 , C07C1/24 , C07C2/64 , C07C5/2729 , C07C6/00 , C07C6/06 , C07C2529/40 , C10G3/49 , C10G29/205 , C10G2400/30 , Y02P30/20 , Y02P30/42
Abstract: Processes for catalytically converting oxygenates to hydrocarbon products having an increased C6-C8 aromatics content therein. A first mixture comprising ≧10.0 wt. % of at least one oxygenate, based on the weight of the first mixture, contacts a catalyst in a fluidized bed reactor to produce a product stream including water, one or more hydrocarbons comprising ≧30.0 wt. % of aromatics, based on the weight of the hydrocarbons in the product stream, hydrogen, and one or more oxygenates. The catalyst comprises at least one molecular sieve, a binder, and at least one element selected from Groups 2-14 of the Periodic Table. At least one water-rich stream, at least one aromatic-rich hydrocarbon stream, and at least one aromatic-depleted hydrocarbon stream are separated from the product stream, and at least a portion of one of the aromatic-rich hydrocarbon stream or the aromatic-depleted hydrocarbon stream is recycled back to the reactor.
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公开(公告)号：US10202318B2
公开(公告)日：2019-02-12
申请号：US15240622
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mayank Shekhar , Paul F. Keusenkothen , Machteld M. W. Mertens , Anthony Go
Abstract: The invention relates to catalysts and their use in processes for conversion of hydrocarbon feedstock to a product comprising single-ring aromatic hydrocarbons having six or more carbon atoms, to the methods of making such catalysts, to processes for using such catalysts, and to apparatus and systems for carrying out such processes. One of more of the catalysts comprise a crystalline aluminosilicate having a Constraint Index in the range of 1 to 12, a first metal and/or a second metal, and at least one selectivating agent, such as, for example, an organo-silicate.
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公开(公告)号：US20190002367A1
公开(公告)日：2019-01-03
申请号：US15974158
申请日：2018-05-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Michael Salciccioli , Alan A. Galuska , Tan-Jen Chen , Catherine M. Dorsi , Mayank Shekhar
Abstract: A process for producing naphthalene or methylnaphthalenes from an alkane-containing stream. In an embodiment, the produce includes providing an alkane-containing feed stream to a reactor, and contacting the ethane-containing stream with an aromatization catalyst within the reactor. The aromatization catalyst comprises molecular sieve, and a dehydrogenation component. In addition, the process includes producing a reactor effluent stream from the reactor, and separating a product stream from the reactor effluent stream. The product stream comprises at least one or both of naphthalene and methylnaphthalene.
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公开(公告)号：US10059638B2
公开(公告)日：2018-08-28
申请号：US15555604
申请日：2015-12-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Nikolaos Soultanidis , Jeevan S. Abichandani , Mayank Shekhar
CPC classification number: C07C1/20 , B01J29/405 , B01J37/28 , B01J2229/36 , C07C2/42 , C07C5/333 , C07C5/393 , C07C5/415 , C07C2529/40 , C10G3/44 , C10G3/49 , C10G3/54 , C10G11/02 , C10G45/60 , C10G2400/20 , C10G2400/22 , C10G2400/30 , Y02P20/52 , Y02P30/42 , C07C11/02 , C07C15/08 , C07C15/02
Abstract: Processes are provided for conversion of oxygenated hydrocarbon, such as methanol and/or dimethyl ether, to aromatics, such as a para-xylene, and olefins, such as ethylene and propylene. The processes entail using a reactor having multiple reaction zones where each zone is prepared to promote desired reactions.
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