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公开(公告)号：US20180169563A1
公开(公告)日：2018-06-21
申请号：US15824656
申请日：2017-11-28
Applicant: Chevron Phillips Chemical Company LP
Inventor： Lei JI , Joseph A. CURREN , Ji Xian LOH
IPC: B01D53/047 , C08F10/02 , C07C2/04 , C07C9/12
Abstract: A process for component separation in a polymer production system, comprising: separating a polymerization product stream into a gas stream and a polymer stream; contacting the polymer stream with a purge gas to yield a purged polymer stream and a spent purge gas stream; introducing the spent purge gas stream to a compressor to produce a compressed gas stream; introducing the compressed gas stream to a first separation unit to produce a first hydrocarbon stream and a membrane unit feed stream; introducing the membrane unit feed stream to a membrane unit to produce a first recovered purge gas stream and a retentate stream; introducing the retentate stream to a second separation unit to produce a second hydrocarbon stream and a PSA unit feed stream; and introducing the PSA unit feed stream to a PSA unit to produce a second recovered purge gas stream and a tail gas stream.
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公开(公告)号：US20240059807A1
公开(公告)日：2024-02-22
申请号：US18386766
申请日：2023-11-03
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeffrey S. FODOR
CPC classification number: C08F10/02 , B01J8/0055 , B01J8/1827 , B01J8/1836 , B01J8/1863 , B01J19/245 , B01J2208/00761
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US20200207882A1
公开(公告)日：2020-07-02
申请号：US16234153
申请日：2018-12-27
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeff S. FODOR
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US20210261694A1
公开(公告)日：2021-08-26
申请号：US17314236
申请日：2021-05-07
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , James E. HEIN , Ralph W. ROMIG , Ai-Fu CHANG
Abstract: A method of operating a dump tank of a polymer production process by transferring all or a portion of a content of a polymerization reactor into the dump tank, wherein the reactor contents comprise solid polymer, and liquid and gaseous non-product components, and removing at least a portion of the liquid and gaseous non-product components from the dump tank by: reducing a pressure of the dump tank, subjecting the solid polymer to a first cleaning stage comprising heating the solid polymer by introducing a first heated treatment gas into the dump tank, and subjecting the solid polymer to a second cleaning stage comprising purging the solid polymer by introducing a second heated treatment gas into the dump tank.
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公开(公告)号：US20200262944A1
公开(公告)日：2020-08-20
申请号：US16866980
申请日：2020-05-05
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeffrey S. FODOR
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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Patent Agency Ranking
公开(公告)号：US20200009495A1
公开(公告)日：2020-01-09
申请号：US16571277
申请日：2019-09-16
Applicant: Chevron Phillips Chemical Company LP
Inventor： Lei JI , Joseph A. CURREN , Ji Xian LOH
IPC: B01D53/047 , C08F10/02 , C07C9/12 , C07C2/04
Abstract: A process for component separation in a polymer production system, comprising: separating a polymerization product stream into a gas stream and a polymer stream; contacting the polymer stream with a purge gas to yield a purged polymer stream and a spent purge gas stream; introducing the spent purge gas stream to a compressor to produce a compressed gas stream; introducing the compressed gas stream to a first separation unit to produce a first hydrocarbon stream and a membrane unit feed stream; introducing the membrane unit feed stream to a membrane unit to produce a first recovered purge gas stream and a retentate stream; introducing the retentate stream to a second separation unit to produce a second hydrocarbon stream and a PSA unit feed stream; and introducing the PSA unit feed stream to a PSA unit to produce a second recovered purge gas stream and a tail gas stream.
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公开(公告)号：US20200262945A1
公开(公告)日：2020-08-20
申请号：US16867015
申请日：2020-05-05
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeffrey S. FODOR
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US20200207885A1
公开(公告)日：2020-07-02
申请号：US16538467
申请日：2019-08-12
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeffrey S. FODOR
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US20200207883A1
公开(公告)日：2020-07-02
申请号：US16538412
申请日：2019-08-12
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Rebecca A. GONZALES , Scott E. KUFELD , Joel A. MUTCHLER , Eric J. NETEMEYER , Jamie N. SUTHERLAND , Paul J. DESLAURIERS , Jeffrey S. FODOR
Abstract: Apparatuses and processes that produce multimodal polyolefins, and in particular, polyethylene resins, are disclosed herein. This is accomplished by using two reactors in series, where one of the reactors is a multi-zone circulating reactor that can circulate polyolefin particles through two polymerization zones optionally having two different flow regimes so that the final multimodal polyolefin has improved product properties and improved product homogeneity.
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公开(公告)号：US20180072639A1
公开(公告)日：2018-03-15
申请号：US15264008
申请日：2016-09-13
Applicant: Chevron Phillips Chemical Company LP
Inventor： Joseph A. CURREN , Ralph W. ROMIG , Ji Xian LOH , Timothy O. ODI
IPC: C07C7/04 , C08F210/16 , C10B57/04 , C10B47/06
CPC classification number: C07C7/04 , B01D1/28 , B01D3/00 , B01D3/143 , C08F210/16 , C10B47/06 , C10B57/04 , C07C11/107 , C07C9/12
Abstract: Processes and systems for olefin and diluent recovery utilizing one or more side columns, including a side rectifier column and/or a side degassing column, in combination with a heavies column.
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