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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：US20240368476A1
公开(公告)日：2024-11-07
申请号：US18774302
申请日：2024-07-16
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sundararajan Uppili , Bryan A. Patel , Randolph J. Smiley , Lawrence R. Gros , Anthony Go , Saurabh S. Maduskar , Melissa D. Foster , Philippe Laurent
Abstract: Systems and methods are provided for integration of a reactor for polyolefin pyrolysis with the effluent processing train for a steam cracker. The polyolefins can correspond to, for example, polyolefins in plastic waste. Integrating a process for polyolefin pyrolysis with a steam cracker processing train can allow a mixture of polymers to be converted to monomer units while reducing or minimizing costs and/or equipment footprint. This can allow for direct conversion of polyolefins to the light olefin monomers in high yield while significantly lowering capital and energy usage due to integration with a steam cracking process train. The integration can be enabled in part by selecting feeds with appropriate mixtures of various polymer types and/or by limiting the volume of the plastic waste pyrolysis product relative to the volume from the steam cracker(s) in the steam cracking process train. By selecting plastic waste and/or other polyolefin sources with an appropriate mixture of polyolefins as the feedstock, the resulting polyolefin pyrolysis product can be separated in a steam cracking process train to produce separate fractions for various polymer grade small olefin products.
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公开(公告)号：US12065616B2
公开(公告)日：2024-08-20
申请号：US17595344
申请日：2020-06-12
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sundararajan Uppili , Bryan A. Patel , Randolph J. Smiley , Lawrence R. Gros , Anthony Go , Saurabh S. Maduskar , Melissa D. Foster , Philippe Laurent
Abstract: Systems and methods are provided for integration of a reactor for polyolefin pyrolysis with the effluent processing train for a steam cracker. The polyolefins can correspond to, for example, polyolefins in plastic waste. Integrating a process for polyolefin pyrolysis with a steam cracker processing train can allow a mixture of polymers to be converted to monomer units while reducing or minimizing costs and/or equipment footprint. This can allow for direct conversion of polyolefins to the light olefin monomers in high yield while significantly lowering capital and energy usage due to integration with a steam cracking process train. The integration can be enabled in part by selecting feeds with appropriate mixtures of various polymer types and/or by limiting the volume of the plastic waste pyrolysis product relative to the volume from the steam cracker(s) in the steam cracking process train. By selecting plastic waste and/or other polyolefin sources with an appropriate mixture of polyolefins as the feedstock, the resulting polyolefin pyrolysis product can be separated in a steam cracking process train to produce separate fractions for various polymer grade small olefin products.
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公开(公告)号：US11053176B2
公开(公告)日：2021-07-06
申请号：US16979751
申请日：2019-03-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Tan-Jen Chen , Wenyih F. Lai , Anthony Go
Abstract: Disclosed is a process for producing mixed xylenes and C9+ hydrocarbons in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating agent comprising methanol and/or dimethyl ether under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product stream comprising the mixed xylenes and C9+ hydrocarbons. The mixed xylenes are subsequently converted to para-xylene, and the C9+ hydrocarbons and its components may be supplied as motor fuels blending components. The alkylation catalyst comprises a molecular sieve having a Constraint Index in the range from greater than zero up to about 3. The molar ratio of aromatic hydrocarbon to alkylating agent is in the range of greater than 1:1 to less than 4:1.
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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.
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Patent Agency Ranking
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.
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公开(公告)号：US20210040016A1
公开(公告)日：2021-02-11
申请号：US16979751
申请日：2019-03-15
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Tan-Jen Chen , Wenyih F. Lai , Anthony Go
Abstract: Disclosed is a process for producing mixed xylenes and C9+ hydrocarbons in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating agent comprising methanol and/or dimethyl ether under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product stream comprising the mixed xylenes and C9+ hydrocarbons. The mixed xylenes are subsequently converted to para-xylene, and the C9+ hydrocarbons and its components may be supplied as motor fuels blending components. The alkylation catalyst comprises a molecular sieve having a Constraint Index in the range from greater than zero up to about 3. The molar ratio of aromatic hydrocarbon to alkylating agent is in the range of greater than 1:1 to less than 4:1.
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公开(公告)号：US20170088485A1
公开(公告)日：2017-03-30
申请号：US15240622
申请日：2016-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Mayank Shekyar , Paul F. Keusenkothen , Machteld M.W. Mertens , Anthony Go
CPC classification number: C07C2/76 , B01J29/405 , B01J29/44 , B01J29/46 , B01J29/90 , B01J37/08 , B01J38/04 , B01J2229/16 , B01J2229/18 , B01J2229/32 , C07C2529/40 , C10G35/065 , Y02P20/52 , Y02P20/584 , C07C15/04 , C07C15/06 , C07C15/08 , C07C15/24
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：US20220195309A1
公开(公告)日：2022-06-23
申请号：US17595344
申请日：2020-06-12
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Sundararajan Uppili , Bryan A. Patel , Randolph J. Smiley , Lawrence R. Gros , Anthony Go , Saurabh S. Maduskar , Melissa D. Foster , Philippe Laurent
Abstract: Systems and methods are provided for integration of a reactor for polyolefin pyrolysis with the effluent processing train for a steam cracker. The polyolefins can correspond to, for example, polyolefins in plastic waste. Integrating a process for polyolefin pyrolysis with a steam cracker processing train can allow a mixture of polymers to be converted to monomer units while reducing or minimizing costs and/or equipment footprint. This can allow for direct conversion of polyolefins to the light olefin monomers in high yield while significantly lowering capital and energy usage due to integration with a steam cracking process train. The integration can be enabled in part by selecting feeds with appropriate mixtures of various polymer types and/or by limiting the volume of the plastic waste pyrolysis product relative to the volume from the steam cracker(s) in the steam cracking process train. By selecting plastic waste and/or other polyolefin sources with an appropriate mixture of polyolefins as the feedstock, the resulting polyolefin pyrolysis product can be separated in a steam cracking process train to produce separate fractions for various polymer grade small olefin products.
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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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