-
公开(公告)号：US11433386B2
公开(公告)日：2022-09-06
申请号：US16742566
申请日：2020-01-14
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mayank Shekhar , Paul Podsiadlo , Michel Molinier , Scott J. Weigel , Travis D. Sparks , Jocelyn A. Gilcrest , Joseph E. Gatt
IPC: B01J38/12 , B01J38/10 , B01J29/40 , B01J29/72 , B01J6/00 , C07C5/22 , C07C6/06 , B01J37/00 , B01J37/20 , B01J37/02 , C07C15/08
Abstract: Methods are provided for activation of catalysts comprising low amounts of a hydrogenation metal, such as low amounts of a Group 8-10 noble metal. The amount of hydrogenation metal on the catalyst can correspond to 0.5 wt % or less (with respect to the weight of the catalyst), or 0.1 wt % or less, or 0.05 wt % or less. Prior to loading a catalyst into a reactor, the corresponding catalyst precursor can be first activated in a hydrogen-containing atmosphere containing 1.0 vppm of CO or less. The thus first-activated catalyst can be transferred to a reactor with optional exposure to oxygen during the transfer, where it can be further activated using a hydrogen-containing atmosphere containing 3.0 vppm of CO or higher, to yield a twice-activated catalyst with high performance. The catalyst can be advantageously a transalkylation catalyst or an isomerization catalyst useful for converting aromatic hydrocarbons.
-
公开(公告)号：US11377402B2
公开(公告)日：2022-07-05
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
IPC: C07C7/08 , C07C2/86 , C07C2/76 , C07C5/27 , C07C29/48 , C07C15/04 , C07C15/073 , C07C15/08 , C07C31/04
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.
-
公开(公告)号：US11203557B2
公开(公告)日：2021-12-21
申请号：US15240707
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Samia Ilias , Mayank Shekhar , Paul F. Keusenkothen , John S. Buchanan
Abstract: The invention relates to catalysts and their use in processes for dehydrocyclization of light paraffinic hydrocarbon feedstock to higher-value hydrocarbon, such as aromatic hydrocarbon, to dehydrocyclization catalysts useful in such processes, and to the methods of making such catalysts. One of more of the dehydrocyclization catalysts comprising a crystalline aluminosilicate zeolite having a constraint index of less than or equal to about 12, at least one Group 3 to Group 13 metal of the IUPAC Periodic Table and phosphorous.
-
公开(公告)号：US10071938B2
公开(公告)日：2018-09-11
申请号：US15240829
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mayank Shekhar , Paul F. Keusenkothen
CPC classification number: C07C2/76 , B01J29/40 , 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 , C07C2529/40 , Y02P20/52 , Y02P20/584 , C07C15/04 , C07C15/06 , C07C15/08
Abstract: The invention relates to the production of aromatic hydrocarbon by the conversion of a feed comprising C2+ non-aromatic hydrocarbon, e.g., natural gas. The invention is particularly useful in converting natural gas to liquid-phase aromatic hydrocarbon, which can be more easily transported away from remote natural gas production facilities. The conversion is carried out in the presence of a dehydrocyclization catalyst comprising dehydrogenation and molecular sieve components. The dehydrocyclization catalyst has an average residence time of 90 seconds or less.
-
公开(公告)号：US20180044260A1
公开(公告)日：2018-02-15
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 , C10G11/02 , 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.
-
Patent Agency Ranking
公开(公告)号：US09845272B2
公开(公告)日：2017-12-19
申请号：US15240651
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： John S. Buchanan , Samia Ilias , Mayank Shekhar , Paul F. Keusenkothen
IPC: C07C2/76
CPC classification number: C07C2/76 , C07C2529/06 , C07C15/04 , C07C15/06 , C07C15/08
Abstract: The invention relates to the conversion of light hydrocarbon to higher-value hydrocarbon, such as aromatic hydrocarbon, to equipment and materials useful in such conversion, and to the use of such conversion for, e.g., natural gas upgrading. The conversion can be carried out in two stages, with each stage containing a dehydrocyclization catalyst comprising at least one dehydrogenation component and at least one molecular sieve.
-
公开(公告)号：US20200238271A1
公开(公告)日：2020-07-30
申请号：US16742566
申请日：2020-01-14
Applicant: ExxonMobil Chemical Patents Inc
Inventor： Mayank Shekhar , Paul Podsiadlo , Michel Molinier , Scott J. Weigel , Travis D. Sparks , Jocelyn A. Gilcrest , Joseph E. Gatt
IPC: B01J38/12 , B01J38/10 , B01J29/40 , B01J29/72 , B01J37/02 , B01J6/00 , C07C5/22 , C07C6/06 , B01J37/00 , B01J37/20
Abstract: Methods are provided for activation of catalysts comprising low amounts of a hydrogenation metal, such as low amounts of a Group 8-10 noble metal. The amount of hydrogenation metal on the catalyst can correspond to 0.5 wt % or less (with respect to the weight of the catalyst), or 0.1 wt % or less, or 0.05 wt % or less. Prior to loading a catalyst into a reactor, the corresponding catalyst precursor can be first activated in a hydrogen-containing atmosphere containing 1.0 vppm of CO or less. The thus first-activated catalyst can be transferred to a reactor with optional exposure to oxygen during the transfer, where it can be further activated using a hydrogen-containing atmosphere containing 3.0 vppm of CO or higher, to yield a twice-activated catalyst with high performance. The catalyst can be advantageously a transalkylation catalyst or an isomerization catalyst useful for converting aromatic hydrocarbons.
-
公开(公告)号：US20190127294A1
公开(公告)日：2019-05-02
申请号：US16228892
申请日：2018-12-21
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mayank Shekhar , Paul F. Keusenkothen , Machteld M. 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.
-
公开(公告)号：US20180208523A1
公开(公告)日：2018-07-26
申请号：US15928142
申请日：2018-03-22
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 , C10G3/46 , C10G3/47 , C10G3/49 , C10G2400/30
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.
-
公开(公告)号：US20170144947A1
公开(公告)日：2017-05-25
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.
-
-
-
-
-
-
-
-
-
Search Results
33
records
(took 0.018 seconds)
