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1.
公开(公告)号:US20190338199A1
公开(公告)日:2019-11-07
申请号:US16511425
申请日:2019-07-15
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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公开(公告)号:US20180178186A1
公开(公告)日:2018-06-28
申请号:US15901261
申请日:2018-02-21
Applicant: Lummus Technology Inc.
Inventor: Yongqiang Xu , Peter Loezos , Willibrord A. Groten , Romain Lemoine
IPC: B01J19/24 , C07C6/04 , C10G50/00 , C10G45/32 , C10G9/36 , C07C7/05 , C07C7/163 , C07C7/167 , C07C7/177 , C07C11/06 , C07C11/10
CPC classification number: B01J19/242 , B01J2219/00006 , C07C6/04 , C07C7/05 , C07C7/163 , C07C7/167 , C07C7/177 , C10G9/36 , C10G45/32 , C10G50/00 , Y02P20/127 , Y02P20/52 , C07C11/06 , C07C11/10
Abstract: Producing C5 olefins from steam cracker C5 feeds may include reacting a mixed hydrocarbon stream comprising cyclopentadiene, C5 olefins, and C6+ hydrocarbons in a dimerization reactor where cyclopentadiene is dimerized to dicyclopentadiene. The dimerization reactor effluent may be separated into a fraction comprising the C6+ hydrocarbons and dicyclopentadiene and a second fraction comprising C5 olefins and C5 dienes. The second fraction, a saturated hydrocarbon diluent stream, and hydrogen may be fed to a catalytic distillation reactor system for concurrently separating linear C5 olefins from saturated hydrocarbon diluent, cyclic C5 olefins, and C5 dienes contained in the second fraction and selectively hydrogenating C5 dienes. An overhead distillate including the linear C5 olefins and a bottoms product including cyclic C5 olefins are recovered from the catalytic distillation reactor system. Other aspects of the C5 olefin systems and processes, including catalyst configurations and control schemes, are also described.
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3.
公开(公告)号:US20180079973A1
公开(公告)日:2018-03-22
申请号:US15706348
申请日:2017-09-15
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
CPC classification number: C10G51/026 , B01D45/06 , B01D45/08 , B01J8/0055 , B01J8/0065 , B01J8/1845 , B01J8/1863 , B01J8/24 , B01J8/26 , B01J2208/00362 , B01J2208/0038 , B01J2208/00752 , B01J2208/00761 , B01J2208/00991 , C10G11/18 , C10G2400/20 , C10G2400/30
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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4.
公开(公告)号:US10889765B2
公开(公告)日:2021-01-12
申请号:US16559016
申请日:2019-09-03
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel.
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5.
公开(公告)号:US20190338198A1
公开(公告)日:2019-11-07
申请号:US16511355
申请日:2019-07-15
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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6.
公开(公告)号:US10450514B2
公开(公告)日:2019-10-22
申请号:US15705769
申请日:2017-09-15
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel.
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公开(公告)号:US20180178187A1
公开(公告)日:2018-06-28
申请号:US15901415
申请日:2018-02-21
Applicant: Lummus Technology Inc.
Inventor: Yongqiang Xu , Peter Loezos , Willibrord A. Groten , Romain Lemoine
IPC: B01J19/24 , C07C6/04 , C10G50/00 , C10G45/32 , C10G9/36 , C07C7/05 , C07C7/163 , C07C7/167 , C07C7/177 , C07C11/06 , C07C11/10
Abstract: Producing C5 olefins from steam cracker C5 reeds may include reacting a mixed hydrocarbon stream comprising cyclopentadiene, C5 olefins, and C6+ hydrocarbons in a dimerization reactor where cyclopentadiene is dimerized to dicyclopentadiene. The dimerization reactor effluent may be separated into a traction comprising the C6+ hydrocarbons and dicyclopentadiene and a second fraction comprising C5 olefins and C5 dienes. The second fraction, a saturated hydrocarbon diluent stream, and hydrogen may be fed to a catalytic distillation reactor system for concurrently separating linear C5 olefins from saturated hydrocarbon diluent, cyclic C5 olefins, and C5 dienes contained in the second fraction and selectively hydrogenating C5 dienes. An overhead distillate including the linear C5 olefins and a bottoms product including cyclic C5 olefins are recovered from the catalytic distillation reactor system. Other aspects of the C5 olefin systems and processes, including catalyst configurations and control schemes, are also described.
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公开(公告)号:US11072747B2
公开(公告)日:2021-07-27
申请号:US16888916
申请日:2020-06-01
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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公开(公告)号:US10696907B2
公开(公告)日:2020-06-30
申请号:US16511425
申请日:2019-07-15
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Apparatus and processes herein provide for converting hydrocarbon feeds to light olefins and other hydrocarbons. The processes and apparatus include, in some embodiments, feeding a hydrocarbon, a first catalyst and a second catalyst to a reactor, wherein the first catalyst has a smaller average particle size and is less dense than the second catalyst. A first portion of the second catalyst may be recovered as a bottoms product from the reactor, and a cracked hydrocarbon effluent, a second portion of the second catalyst, and the first catalyst may be recovered as an overhead product from the reactor. The second portion of the second catalyst may be separated from the overhead product, providing a first stream comprising the first catalyst and the hydrocarbon effluent and a second stream comprising the separated second catalyst, allowing return of the separated second catalyst in the second stream to the reactor.
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10.
公开(公告)号:US20190390117A1
公开(公告)日:2019-12-26
申请号:US16559016
申请日:2019-09-03
Applicant: Lummus Technology Inc.
Inventor: Liang Chen , Peter Loezos , Rama Rao Marri , Bryan Tomsula , Jon A. Hood , Hardik Singh , Michael Dorsey , Justin Breckenridge
Abstract: Systems for separating a contaminant trapping additive from a cracking catalyst may include a contaminant removal vessel having one or more fluid connections for receiving contaminated cracking catalyst, contaminated contaminant trapping additive, fresh contaminant trapping additive, and a fluidizing gas. In the contaminant removal vessel, the spent catalyst may be contacted with contaminant trapping additive, which may have an average particle size and/or density greater than the cracking catalyst. A separator may be provided for separating an overhead stream from the contaminant removal vessel into a first stream comprising cracking catalyst and lifting gas and a second stream comprising contaminant trapping additive. A recycle line may be used for transferring contaminant trapping additive recovered in the second separator to the contaminant removal vessel, allowing contaminant trapping additive to accumulate in the contaminant removal vessel. A bottoms product line may provide for recovering contaminant trapping additive from the contaminant removal vessel.
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