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公开(公告)号：US10131596B2
公开(公告)日：2018-11-20
申请号：US15642550
申请日：2017-07-06
发明人： Lei Ji , Ai-Fu Chang , Michael S. Driver , Hye Kyung Timken
IPC分类号： C07C7/11 , C07C7/152 , B01D53/14 , B01D53/22 , B01D53/52 , B01D53/62 , B01D53/72 , B01D53/78 , C01B17/16 , C07C7/144 , C07C7/00 , C07C7/156 , C01B32/50 , C01B31/20
摘要： Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
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公开(公告)号：US09227890B1
公开(公告)日：2016-01-05
申请号：US14803712
申请日：2015-07-20
发明人： Lei Ji , Ai-Fu Chang
CPC分类号： B01D53/047 , B01D2253/108 , B01D2256/24 , B01D2257/702 , B01D2259/40086 , B01D2259/402 , B01J8/20 , B01J19/2435 , B01J19/245 , B01J2208/00265 , B01J2219/00105 , C07C7/005 , C07C7/04 , C07C7/12 , C07C7/13 , C08F10/02 , Y02P20/582 , C07C11/04 , C08F2/01 , C08F210/16 , C08F210/14 , C08F2/14
摘要： A process for component separation in a polymer production system comprising: (a) separating a polymerization product into a gas stream and a polymer stream; (b) processing the gas stream in distillation columns to yield a light hydrocarbon stream (LHS) comprising ethylene and ethane; (c) contacting LHS with a purged hydrocarbon adsorber to yield a loaded hydrocarbon adsorber and a non-adsorbed gas stream, wherein ethane is adsorbed by the purged hydrocarbon adsorber at a first pressure to yield adsorbed ethane, and wherein the non-adsorbed gas stream comprises recovered ethylene; (d) contacting the loaded hydrocarbon adsorber with a sweeping gas stream at a second pressure to yield an unloaded hydrocarbon adsorber and a recovered adsorbed gas stream comprising the sweeping gas stream and desorbed ethane; and (e) contacting the unloaded hydrocarbon adsorber with the sweeping gas stream at the first pressure to yield the purged hydrocarbon adsorber and a spent sweeping gas.
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公开(公告)号：US10227274B2
公开(公告)日：2019-03-12
申请号：US14597415
申请日：2015-01-15
发明人： Lei Ji , Ai-Fu Chang , Michael Sean Driver , Hye-Kyung Cho Timken
摘要： Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
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公开(公告)号：US09339755B2
公开(公告)日：2016-05-17
申请号：US14795784
申请日：2015-07-09
发明人： Lei Ji , Ai-Fu Chang
IPC分类号： C08F2/00 , C08F210/00 , B01D53/04 , C07C7/13 , C08F110/02 , B01J19/00 , C07C7/12 , B01J8/08
CPC分类号： B01D53/0462 , B01D53/0407 , B01D2253/102 , B01D2253/108 , B01D2253/116 , B01D2253/204 , B01D2256/24 , B01D2257/7022 , B01D2259/40043 , B01J8/085 , B01J8/087 , B01J19/00 , B01J2208/00212 , B01J2208/00274 , B01J2219/0004 , B01J2219/00837 , B01J2219/00842 , C07C7/12 , C07C7/13 , C08F110/02 , Y02P20/582 , C08F10/02 , C08F2/01 , C08F210/16 , C08F210/14 , C08F2/14 , C07C11/04
摘要： A process for component separation in a polymer production system, comprising (a) separating a polymerization product stream into a gas stream and a polymer stream, (b) contacting the polymer stream with a purge gas to yield a purged polymer and a spent purge gas comprising purge gas, ethylene, and ethane, (c) contacting the spent purge gas with a temperature swing adsorber contactor (TSAC) to yield a loaded TSAC, wherein at least a portion of the ethylene is adsorbed by the TSAC at a first temperature to yield TSAC-adsorbed ethylene, wherein a portion of the ethane is adsorbed by the TSAC at the first temperature to yield TSAC-adsorbed ethane, (d) heating the loaded TSAC to a second temperature to yield a regenerated TSAC, and (e) contacting the regenerated TSAC with a sweeping gas stream to yield a recovered adsorbed gas stream comprising sweeping gas, recovered ethylene and recovered ethane.
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公开(公告)号：US20200306684A1
公开(公告)日：2020-10-01
申请号：US16902856
申请日：2020-06-16
IPC分类号： B01D53/047 , C01B21/04 , C08F10/02 , B01J20/10 , B01J20/34
摘要： A closed-loop nitrogen transport system including a first transfer line configured for nitrogen pressure conveyance of a polymer fluff from at least one upstream vessel to at least one downstream vessel, a second transfer line configured to return a nitrogen gas stream comprising primarily nitrogen from the at least one downstream vessel to the at least one upstream vessel, a conveyor blower operable to provide flow throughout the closed loop, and a treatment unit operable to remove hydrocarbons from at least a portion of the nitrogen gas stream comprising primarily nitrogen, to provide a purified nitrogen stream.
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公开(公告)号：US10449480B2
公开(公告)日：2019-10-22
申请号：US15824656
申请日：2017-11-28
发明人： Lei Ji , Joseph A. Curren , Ji Xian Loh
IPC分类号： B01D53/047 , B01D53/22 , C07C2/04 , C07C9/12 , C08F10/02 , B01D53/00 , C07C7/00 , C07C7/12 , C07C7/144
摘要： 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：US11623176B2
公开(公告)日：2023-04-11
申请号：US16902856
申请日：2020-06-16
IPC分类号： B01D53/047 , C01B21/04 , C08F10/02 , B01J20/10 , B01J20/34
摘要： A closed-loop nitrogen transport system including a first transfer line configured for nitrogen pressure conveyance of a polymer fluff from at least one upstream vessel to at least one downstream vessel, a second transfer line configured to return a nitrogen gas stream comprising primarily nitrogen from the at least one downstream vessel to the at least one upstream vessel, a conveyor blower operable to provide flow throughout the closed loop, and a treatment unit operable to remove hydrocarbons from at least a portion of the nitrogen gas stream comprising primarily nitrogen, to provide a purified nitrogen stream.
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公开(公告)号：US11058987B2
公开(公告)日：2021-07-13
申请号：US16571277
申请日：2019-09-16
发明人： Lei Ji , Joseph A. Curren , Ji Xian Loh
IPC分类号： B01D53/22 , B01D53/047 , C07C7/00 , C07C7/144 , B01D53/00 , C07C7/12 , C07C2/04 , C07C9/12 , C08F10/02
摘要： 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：US09427694B2
公开(公告)日：2016-08-30
申请号：US14957412
申请日：2015-12-02
发明人： Lei Ji , Ai-Fu Chang
IPC分类号： B01D53/047 , C07C7/12 , C07C7/13 , C08F10/02 , C07C7/00 , C07C7/04 , B01J8/20 , B01J19/24 , C08F2/14 , B01J19/18
CPC分类号： B01D53/047 , B01D2253/108 , B01D2256/24 , B01D2257/702 , B01D2259/40086 , B01D2259/402 , B01J8/20 , B01J19/2435 , B01J19/245 , B01J2208/00265 , B01J2219/00105 , C07C7/005 , C07C7/04 , C07C7/12 , C07C7/13 , C08F10/02 , Y02P20/582 , C07C11/04 , C08F2/01 , C08F210/16 , C08F210/14 , C08F2/14
摘要： A process for component separation in a polymer production system comprising: (a) separating a polymerization product into a gas stream and a polymer stream; (b) processing the gas stream in distillation columns to yield a light hydrocarbon stream (LHS) comprising ethylene and ethane; (c) contacting LHS with a purged hydrocarbon adsorber to yield a loaded hydrocarbon adsorber and a non-adsorbed gas stream, wherein ethane is adsorbed by the purged hydrocarbon adsorber at a first pressure to yield adsorbed ethane, and wherein the non-adsorbed gas stream comprises recovered ethylene; (d) contacting the loaded hydrocarbon adsorber with a sweeping gas stream at a second pressure to yield an unloaded hydrocarbon adsorber and a recovered adsorbed gas stream comprising the sweeping gas stream and desorbed ethane; and (e) contacting the unloaded hydrocarbon adsorber with the sweeping gas stream at the first pressure to yield the purged hydrocarbon adsorber and a spent sweeping gas.
摘要翻译： 一种聚合物生产系统中组分分离的方法，包括：（a）将聚合产物分离成气流和聚合物流; （b）在蒸馏塔中处理气流以产生包含乙烯和乙烷的轻质烃流（LHS）; （c）使LHS与吹扫的烃吸附器接触以产生负载的烃吸附器和非吸附气流，其中乙烷在第一压力下被吹扫的烃吸附器吸附以产生吸附的乙烷，并且其中未吸附的气流 包括回收的乙烯; （d）在第二压力下使负载的烃吸附器与清扫气流接触，以产生无载烃吸附器和包含扫气流和解吸乙烷的回收吸附气流; 和（e）在第一压力下将未加载的烃吸附器与清扫气流接触，以产生清洗的烃吸附器和废清洁气体。
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公开(公告)号：US09238193B2
公开(公告)日：2016-01-19
申请号：US13948861
申请日：2013-07-23
发明人： Lei Ji , Ai-Fu Chang , Michael S. Driver , Hye-Kyung Timken
IPC分类号： B01D53/78 , B01D53/62 , B01D53/52 , B01D53/72 , C07C7/00 , B01D53/14 , C01B31/20 , C01B17/16 , C07C7/11 , C07C7/144 , C07C7/152 , C07C7/156 , B01D53/22
CPC分类号： C07C7/11 , B01D53/14 , B01D53/1462 , B01D53/1468 , B01D53/1475 , B01D53/1487 , B01D53/1493 , B01D53/229 , B01D53/52 , B01D53/526 , B01D53/62 , B01D53/72 , B01D53/78 , B01D2252/20426 , B01D2252/20473 , B01D2252/30 , B01D2256/22 , B01D2256/24 , B01D2257/304 , B01D2257/504 , B01D2257/7022 , C01B17/167 , C01B31/20 , C01B32/50 , C07C7/005 , C07C7/144 , C07C7/152 , C07C7/156 , Y02P20/152 , Y02P20/542 , C07C9/12 , C07C11/04
摘要： Disclosed are systems and methods which provide a process stream comprising a gaseous component, capture the gaseous component from the process stream by an ionic liquid solvent of a separator, and recover a captured gaseous component from the ionic liquid solvent in a regenerator. A second gaseous component from the process stream may be captured by the ionic liquid solvent of the separator, and the second gaseous component may be recovered from the ionic liquid solvent in the regenerator. Alternatively, the second gaseous component from the process stream may be uncaptured by the ionic liquid solvent, and the uncaptured second gaseous component may be recovered from a membrane unit.
摘要翻译： 公开了提供包含气体组分的工艺流体的系统和方法，通过分离器的离子液体溶剂从工艺流捕获气态组分，并在再生器中从离子液体溶剂回收捕获的气态组分。 来自工艺物流的第二气态组分可以由分离器的离子液体溶剂捕获，并且第二气体组分可以从再生器中的离子液体溶剂中回收。 或者，来自工艺流的第二气态组分可以由离子液体溶剂未捕获，并且未捕获的第二气态组分可以从膜单元回收。
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