-
1.发明授权Copolyimide membranes with high permeability and selectivity for olefin/paraffin separations 有权对于烯烃/石蜡分离具有高渗透性和选择性的共聚酰亚胺膜公开(公告)号：US09327248B1
公开(公告)日：2016-05-03
申请号：US14560207
申请日：2014-12-04
Applicant: UOP LLC
Inventor： Carl W. Liskey , Chunqing Liu , Howie Q. Tran , Nicole K. Karns
CPC classification number: B01D71/64 , B01D53/228 , B01D71/76 , B01D2053/224
Abstract: A copolyimide polymer membrane is provided for separation of hydrocarbons including separation of olefins from paraffins and isoparaffins from other paraffins. The copolyimide polymer membranes include a poly(3,3′-diaminobenzophenone-3,3′,5,5′-tetramethyl-4,4′-methylene dianiline-pyromellitic dianhydride) (abbreviated as poly(DAB-TMMDA-PMDA)). The copolyimide membranes prepared from poly(DAB-TMMDA-PMDA) with varying molar ratios of DAB to TMMDA (abbreviated as PI-DAB-T) showed excellent separation properties for propylene/propane separation.
Abstract translation: 提供了用于分离烃的共聚酰亚胺聚合物膜，包括从链烷烃中分离烯烃和来自其它石蜡的异构烷烃。 共聚酰亚胺聚合物膜包括聚（3,3'-二氨基二苯甲酮-3,3'，5,5'-四甲基-4,4'-亚甲基二苯胺 - 均苯四酸二酐）（缩写为聚（DAB-TMMDA-PMDA）） 。 由具有不同摩尔比的DAB与TMMDA（缩写为PI-DAB-T）的聚（DAB-TMMDA-PMDA）制备的共聚酰亚胺膜显示出优异的丙烯/丙烷分离分离性能。
-
2.发明授权Gas separation membranes from chemically and UV treated polymers of intrinsic microporosity 有权化学和UV处理聚合物的气体分离膜具有固有的微孔性公开(公告)号：US09238202B2
公开(公告)日：2016-01-19
申请号：US14104492
申请日：2013-12-12
Applicant: UOP LLC
Inventor： Carl W. Liskey , Michael B. Hamoy , Chunqing Liu
CPC classification number: B01D67/0006 , B01D53/228 , B01D71/52 , B01D71/82 , B01D2256/245 , B01D2257/504 , B01D2323/30 , B01D2323/345 , B01D2323/36 , B01D2325/02 , Y02C10/10
Abstract: The invention is a process of making a chemically and UV treated polymer of intrinsic microporosity membrane comprising preparing a polymer of intrinsic microporosity, chemically cross-linking said polymer of intrinsic microporosity with a cross-linking compound to produce a chemically cross-linked polymer of intrinsic microporosity and then treating said chemically cross-linked polymer with UV radiation for a period of time sufficient to provide a product membrane. This product membrane is useful in the separation of C3 and higher hydrocarbons, as well as CO2, from natural gas and other gas streams.
Abstract translation: 本发明是制备本征微孔膜的化学和UV处理的聚合物的方法，包括制备本征微孔的聚合物，与所述交联化合物化学交联所述本征微孔的聚合物以产生本征的化学交联聚合物 微孔，然后用UV辐射处理所述化学交联的聚合物足以提供产物膜的时间。 该产品膜可用于从天然气和其他气体流中分离C3和更高级烃以及二氧化碳。
-
公开(公告)号：US10683246B2
公开(公告)日：2020-06-16
申请号：US16058784
申请日：2018-08-08
Applicant: UOP LLC
Inventor： Chunqing Liu , Lubo Zhou , Stanley J. Frey , Gregory R. Werba , Carl W. Liskey , Simon E. Albo , Trung Pham
Abstract: A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.
-
公开(公告)号：US09308502B1
公开(公告)日：2016-04-12
申请号：US14497354
申请日：2014-09-26
Applicant: UOP LLC
Inventor： Carl W. Liskey , Chunqing Liu , Michael B. Hamoy
CPC classification number: B01D71/64 , B01D53/228 , B01D67/0009 , B01D67/009 , B01D71/56 , B01D2323/345 , C08G73/1067
Abstract: Polyimide membranes are provided that provide extremely high permeability. The polyimides do not contain carbonyl or sulfonyl functional groups. These membranes are useful in separating gases including the separation of gas pairs including carbon dioxide/methane, hydrogen/methane and propylene/propane as well as other gas mixtures. The membrane selectivity can be adjusted by exposure to ultraviolet light.
-
公开(公告)号：US20160089639A1
公开(公告)日：2016-03-31
申请号：US14497354
申请日：2014-09-26
Applicant: UOP LLC
Inventor： Carl W. Liskey , Chunqing Liu , Michael B. Hamoy
CPC classification number: B01D71/64 , B01D53/228 , B01D67/0009 , B01D67/009 , B01D71/56 , B01D2323/345 , C08G73/1067
Abstract: Polyimide membranes are provided that provide extremely high permeability. The polyimides do not contain carbonyl or sulfonyl functional groups. These membranes are useful in separating gases including the separation of gas pairs including carbon dioxide/methane, hydrogen/methane and propylene/propane as well as other gas mixtures. The membrane selectivity can be adjusted by exposure to ultraviolet light.
-
Patent Agency Ranking
6.发明授权公开(公告)号：US10471381B2
公开(公告)日：2019-11-12
申请号：US15598168
申请日：2017-05-17
Applicant: UOP LLC
Inventor： Chunqing Liu , Carl W. Liskey , Howie Q. Tran , Nicole K. Karns
Abstract: This invention provides a new facilitated transport membrane comprising a relatively hydrophilic, very small pore, nanoporous support membrane, a hydrophilic polymer inside the very small nanopores on the skin layer surface of the support membrane, a thin, nonporous, hydrophilic polymer layer coated on the surface of the support membrane, and metal salts incorporated in the hydrophilic polymer layer coated on the surface of the support membrane and the hydrophilic polymer inside the very small nanopores, a method of making this membrane, and the use of this membrane for olefin/paraffin separations, particularly for C3=/C3 and C2=/C2 separations.
-
公开(公告)号：US20190100479A1
公开(公告)日：2019-04-04
申请号：US16058784
申请日：2018-08-08
Applicant: UOP LLC
Inventor： Chunqing Liu , Lubo Zhou , Stanley J. Frey , Gregory R. Werba , Carl W. Liskey , Simon E. Albo , Trung Pham
Abstract: A process is provided for separation of light olefins and paraffins and particular for the separation of propylene and propane comprising sending at least one olefin/paraffin stream to a distillation column and a membrane unit to produce an olefin stream comprising at least 92 mol % olefin. In an embodiment of the invention where the membrane unit is placed downstream from the column which can produce propylene streams at polymer grade of over 99.5 mol % propylene.
-
8.发明申请公开(公告)号：US20170354918A1
公开(公告)日：2017-12-14
申请号：US15598168
申请日：2017-05-17
Applicant: UOP LLC
Inventor： Chunqing Liu , Carl W. Liskey , Howie Q. Tran , Nicole K. Karns
CPC classification number: B01D53/228 , B01D67/0088 , B01D69/10 , B01D69/12 , B01D69/148 , B01D71/08 , B01D71/68 , B01D2256/24 , B01D2325/36 , C07C7/144
Abstract: This invention provides a new facilitated transport membrane comprising a relatively hydrophilic, very small pore, nanoporous support membrane, a hydrophilic polymer inside the very small nanopores on the skin layer surface of the support membrane, a thin, nonporous, hydrophilic polymer layer coated on the surface of the support membrane, and metal salts incorporated in the hydrophilic polymer layer coated on the surface of the support membrane and the hydrophilic polymer inside the very small nanopores, a method of making this membrane, and the use of this membrane for olefin/paraffin separations, particularly for C3=/C3 and C2=/C2 separations.
-
公开(公告)号：US11083992B2
公开(公告)日：2021-08-10
申请号：US16380540
申请日：2019-04-10
Applicant: UOP LLC
Inventor： Chunqing Liu , Nicole K. Karns , Howie Q. Tran , Carl W. Liskey
Abstract: A process is provided of making facilitated transport membrane comprising a relatively hydrophilic, very small pore, nanoporous support membrane, a hydrophilic polymer inside the very small nanopores on the skin layer surface of the support membrane, a thin, nonporous, hydrophilic polymer layer coated on the surface of the support membrane, and metal salts incorporated in the hydrophilic polymer layer coated on the surface of the support membrane and the hydrophilic polymer inside the very small nanopores. In addition, the process provides a new method of making facilitated transport membrane spiral wound elements or hollow fiber modules for olefin/paraffin separations, particularly for C3=/C3 and C2=/C2 separations.
-
10.发明授权公开(公告)号：US10328386B2
公开(公告)日：2019-06-25
申请号：US15599258
申请日：2017-05-18
Applicant: UOP LLC
Inventor： Chunqing Liu , Carl W. Liskey , Nicole K. Karns
IPC: B01D69/02 , B01D53/22 , B01D71/64 , B01D71/68 , B01D71/02 , B01D69/12 , B01D67/00 , C07C7/144 , B01D69/14 , B01D71/10 , B01D71/76
Abstract: A co-cast thin film composite flat sheet membrane is provided that comprises an asymmetric porous non-selective support layer with a thickness of 10-50 micrometers and an asymmetric integrally skinned polyimide-containing selective layer with a thickness of 5-40 micrometers on top of said support layer, wherein said asymmetric integrally skinned polyimide-containing selective layer comprises a porous non-selective polyimide-containing support layer with a thickness of ˜5-40 micrometers and a relatively porous, thin, dense, polyimide-containing top skin layer with a thickness of 0.02-0.2 micrometers.
-
-
-
-
-
-
-
-
-
Search Results
16
records
(took 0.013 seconds)
