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1. 发明授权

US08016124B2 Thin film gas separation membranes 有权
标题翻译：薄膜气体分离膜
公开(公告)号：US08016124B2
公开(公告)日：2011-09-13
申请号：US12428309
申请日：2009-04-22
申请人： Stephen Yates , Rehan Zaki , Amber Arzadon , Chunqing Liu , Jeffrey Chiou
发明人： Stephen Yates , Rehan Zaki , Amber Arzadon , Chunqing Liu , Jeffrey Chiou
IPC分类号： B01D71/64 , B01D71/68 , B01D71/00 , B01D59/12
CPC分类号： B01D71/68 , B01D53/228 , B01D63/065 , B01D71/64 , B01D2256/12 , B01D2256/16 , B01D2256/24 , B01D2257/102 , B01D2257/108 , B01D2257/504 , B01D2257/7022 , Y02C10/10
摘要： A gas separation membrane comprises a blend of polyethersulfone (PES) and aromatic polyimide polymers that may comprise a plurality of first repeating units of formula (I), wherein X1, X 2 and X3 are herein defined.
摘要翻译：气体分离膜包括聚醚砜（PES）和芳族聚酰亚胺聚合物的共混物，其可以包含多个式（I）的第一重复单元，其中X1，X2和X3在本文中定义。

2. 发明授权

US08337598B2 Photo-crosslinked gas selective membranes as part of thin film composite hollow fiber membranes 有权
标题翻译：光交联气体选择膜作为薄膜复合中空纤维膜的一部分
公开(公告)号：US08337598B2
公开(公告)日：2012-12-25
申请号：US12205552
申请日：2008-09-05
申请人： Stephen F. Yates , Matthew C. McGuirl , Tihomir G. Tonev , Chunqing Liu , Jeffrey Chiou , Amber Arzadon
发明人： Stephen F. Yates , Matthew C. McGuirl , Tihomir G. Tonev , Chunqing Liu , Jeffrey Chiou , Amber Arzadon
IPC分类号： B01D53/22
CPC分类号： B01D71/64 , B01D67/009 , B01D69/02 , B01D69/087 , B01D2323/345 , B01D2325/32 , Y10T428/249962 , Y10T428/249964
摘要： A thin film composite membrane comprises a core layer and a sheath UV-crosslinked polymer layer. The thin film composite membrane is produced by the co-extrusion of two polymer solutions. The core layer and the sheath layer can be separately optimized. The sheath layer may be UV-crosslinked to provide stability and selectivity at the desired operating temperature of the composite membrane.
摘要翻译：薄膜复合膜包括芯层和护套UV交联聚合物层。薄膜复合膜通过两种聚合物溶液的共挤出生产。核心层和鞘层可以单独优化。鞘层可以是UV交联的，以在复合膜的期望操作温度下提供稳定性和选择性。

3. 发明申请

US20100058926A1 PHOTO-CROSSLINKED GAS SELECTIVE MEMBRANES AS PART OF THIN FILM COMPOSITE HOLLOW FIBER MEMBRANES 有权
标题翻译：透光气体选择膜作为薄膜复合中空纤维膜的一部分
公开(公告)号：US20100058926A1
公开(公告)日：2010-03-11
申请号：US12205552
申请日：2008-09-05
申请人： Stephen F. Yates , Matthew C. McGuirl , Tihomir G. Tonev , Chunqing Liu , Jeffrey Chiou , Amber Arzadon
发明人： Stephen F. Yates , Matthew C. McGuirl , Tihomir G. Tonev , Chunqing Liu , Jeffrey Chiou , Amber Arzadon
IPC分类号： B01D69/12 , B01D69/08 , B01D67/00
CPC分类号： B01D71/64 , B01D67/009 , B01D69/02 , B01D69/087 , B01D2323/345 , B01D2325/32 , Y10T428/249962 , Y10T428/249964
摘要： A thin film composite membrane comprises a core layer and a sheath UV-crosslinked polymer layer. The thin film composite membrane is produced by the co-extrusion of two polymer solutions. The core layer and the sheath layer can be separately optimized. The sheath layer may be UV-crosslinked to provide stability and selectivity at the desired operating temperature of the composite membrane.
摘要翻译：薄膜复合膜包括芯层和护套UV交联聚合物层。薄膜复合膜通过两种聚合物溶液的共挤出生产。核心层和鞘层可以单独优化。鞘层可以是UV交联的，以在复合膜的期望操作温度下提供稳定性和选择性。

4. 发明授权

US08575414B2 Membrane system for natural gas upgrading 有权
标题翻译：天然气升级膜系统
公开(公告)号：US08575414B2
公开(公告)日：2013-11-05
申请号：US13287582
申请日：2011-11-02
申请人： Chunqing Liu , Syed A. Faheem , Raisa Minkov
发明人： Chunqing Liu , Syed A. Faheem , Raisa Minkov
IPC分类号： C07C7/144
CPC分类号： C10L3/104 , B01D53/22 , B01D2256/245 , B01D2257/504 , C10L3/101 , Y02C10/04 , Y02C10/10
摘要： The present invention involves the use of a novel membrane system for natural gas upgrading. This membrane system includes a first-stage membrane such as a membrane prepared from the polymer of intrinsic microporosity (PIM) to selectively remove hydrocarbons from C3 to C35 to control the dew point of natural gas, and a second-stage membrane such as a polybenzoxazole (PBO) or crosslinked PBO membrane to selectively remove CO2 from natural gas. The new membrane system described in the current invention eliminates the use of high cost and high footprint membrane pretreatment. Therefore, the membrane system can significantly reduce the footprint and cost for natural gas upgrading compared to the current commercially available membrane systems that include a non-membrane-related pretreatment system.
摘要翻译：本发明涉及使用新型膜系统进行天然气升级。该膜系统包括由本征微孔聚合物（PIM）制备的膜的第一级膜，以选择性地从C3至C35去除烃，以控制天然气的露点;以及第二级膜，例如聚苯并恶唑（PBO）或交联的PBO膜以选择性地从天然气中除去CO 2。本发明描述的新膜系统消除了高成本和高占地面积的膜预处理的使用。因此，与目前市场上可买到的膜系统（包括非膜相关的预处理系统）相比，膜系统可显着减少天然气升级的占地面积和成本。

5. 发明授权

US08231785B2 Staged membrane system for gas, vapor, and liquid separations 有权
公开(公告)号：US08231785B2
公开(公告)日：2012-07-31
申请号：US12464394
申请日：2009-05-12
申请人： Lubo Zhou , Chunqing Liu , Carlos A. Cabrera , Peter K. Coughlin
发明人： Lubo Zhou , Chunqing Liu , Carlos A. Cabrera , Peter K. Coughlin
IPC分类号： B01D61/36 , B01D71/62 , B01D53/22 , B01D63/00
CPC分类号： B01D53/228 , B01D67/0006 , B01D71/62 , B01D2256/16 , B01D2256/24 , B01D2257/504 , B01D2258/06 , B01D2323/30 , B01D2323/345 , Y02C10/10
摘要： The present invention involves the use of a multi-stage membrane system for gas, vapor, and liquid separations. In this multi-stage membrane system, high selectivity and high permeance or at least high selectivity polybenzoxazole membranes or cross-linked polybenzoxazole membranes are applied for a pre-membrane or both the pre-membrane and the secondary membrane. A primary membrane can be from conventional glassy polymers. This multi-stage membrane system can reduce inter-stage compression cost, increase product recovery and product purity for gas, vapor, and liquid separations. It can also save the cost compared to the system using all the high cost polybenzoxazole membranes or cross-linked polybenzoxazole membranes.

6. 发明授权

US08203028B2 Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) membranes 有权
标题翻译：使用多孔疏水性聚（醚醚酮）膜进行烯烃/石蜡分离的方法
公开(公告)号：US08203028B2
公开(公告)日：2012-06-19
申请号：US12788595
申请日：2010-05-27
申请人： Santi Kulprathipanja , Chunqing Liu
发明人： Santi Kulprathipanja , Chunqing Liu
IPC分类号： C07C7/144
CPC分类号： C07C7/144 , C07C9/00 , C07C11/00
摘要： Processes for olefin/paraffin separation utilizing porous, hydrophobic poly(ether ether ketone) (PEEK) membranes are provided. In accordance with an exemplary embodiment, a process for olefin/paraffin separation comprises providing a porous membrane formed of PEEK polymer functionalized with hydrophobic groups, the porous membrane having a first surface and a second surface. The first surface of the porous membrane is contacted with a feed comprising an olefin and a paraffin and a permeate is caused to flow from the second surface of the porous membrane. The permeate has a concentration of the paraffin that is higher than a concentration of the paraffin of the feed.
摘要翻译：提供利用多孔疏水性聚（醚醚酮）（PEEK）膜的烯烃/石蜡分离方法。根据示例性实施方案，烯烃/石蜡分离方法包括提供由疏水基官能化的PEEK聚合物形成的多孔膜，所述多孔膜具有第一表面和第二表面。多孔膜的第一表面与包含烯烃和石蜡的进料接触，使渗透物从多孔膜的第二表面流出。渗透物的石蜡浓度高于饲料中石蜡的浓度。

7. 发明申请

US20120085233A1 BLEND POLYMER MEMBRANES COMPRISING THERMALLY REARRANGED POLYMERS DERIVED FROM AROMATIC POLYIMIDES CONTAINING ORTHO-POSITIONED FUNCTIONAL GROUPS 审中-公开
标题翻译：包含由含有正位置功能团的芳香族聚酰胺衍生的热重复聚合物的混合聚合物膜
公开(公告)号：US20120085233A1
公开(公告)日：2012-04-12
申请号：US13329365
申请日：2011-12-19
申请人： Chunqing Liu , Man-Wing Tang
发明人： Chunqing Liu , Man-Wing Tang
IPC分类号： B01D53/22 , B01D71/64
CPC分类号： C08L79/08 , B01D71/64 , B01D71/82 , B01D2323/08 , B01D2323/30 , B01D2323/345 , C08G73/1039 , C08G73/1046 , C08G73/1064 , C08G73/22 , C08J5/2256 , C08J5/2275 , C08J2379/08 , C08J2481/06 , C08L79/04 , C08L81/06 , C08L2205/02 , C08L81/00 , C08L2666/20
摘要： The present invention discloses blend polymer membranes comprising thermally rearranged polymers derived from aromatic polyimides containing ortho-positioned functional groups and methods for making and using these blend polymer membranes. The blend polymer membranes described in the current invention are prepared by heat treatment of blend polymer membranes comprising aromatic polyimides containing ortho-positioned functional groups such as —OH or —SH groups. In some instances, an additional crosslinking step is performed to improve the selectivity of the membrane. These blend polymer membranes have improved flexibility, reduced cost, improved processability, and enhanced selectivity and/or permeability compared to the comparable polymer membranes that comprise a single polymer.
摘要翻译：本发明公开了包含衍生自含有邻位官能团的芳族聚酰亚胺的热重排聚合物的混合聚合物膜以及制备和使用这些共混聚合物膜的方法。本发明描述的共混聚合物膜通过热处理包含含有邻位置官能团如-OH或-SH基团的芳族聚酰亚胺的共混聚合物膜来制备。在一些情况下，进行额外的交联步骤以改善膜的选择性。与包含单一聚合物的可比较的聚合物膜相比，这些共混聚合物膜具有改进的柔性，降低的成本，改进的加工性，以及增强的选择性和/或渗透性。

8. 发明授权

US08083834B2 High permeability membrane operated at elevated temperature for upgrading natural gas 有权
标题翻译：高渗透膜在高温下运行，用于升级天然气
公开(公告)号：US08083834B2
公开(公告)日：2011-12-27
申请号：US12116255
申请日：2008-05-07
申请人： Lubo Zhou , Chunqing Liu
发明人： Lubo Zhou , Chunqing Liu
IPC分类号： B01D53/22
CPC分类号： B01D53/228 , B01D71/62 , C10L3/10 , C10L3/102
摘要： The present invention discloses a new process of treating natural gas using high gas permeability polybenzoxazole polymer membranes operated at high temperatures that can provide sufficient dew point margin for the product gas. The high gas permeability polybenzoxazole polymer membranes can be used for a single stage membrane system or for the first stage membrane in a two stage membrane system for natural gas upgrading. Simulation study has demonstrated that a costly membrane pretreatment system such as a MemGuard™ system will not be required in the present new process. The new process can achieve significant capital cost saving and reduce the existing membrane footprint greater than 50%.
摘要翻译：本发明公开了一种使用高气体渗透性聚苯并恶唑聚合物膜处理天然气的新方法，其在高温下操作，可为产品气体提供足够的露点。高透气性聚苯并恶唑聚合物膜可用于单级膜系统或用于二级膜系统中用于天然气升级的第一级膜。模拟研究表明，在目前的新工艺中，不需要昂贵的膜预处理系统，如MemGuard™系统。新工艺可以实现显着的资本成本节约，并将现有的膜占地面积减少到50％以上。

9. 发明授权

US08030399B2 Crosslinked organic-inorganic hybrid membranes and their use in gas separation 有权
标题翻译：交联的有机 - 无机杂化膜及其在气体分离中的应用
公开(公告)号：US08030399B2
公开(公告)日：2011-10-04
申请号：US12847067
申请日：2010-07-30
申请人： Chunqing Liu , Stephen T. Wilson , Santi Kulprathipanja
发明人： Chunqing Liu , Stephen T. Wilson , Santi Kulprathipanja
IPC分类号： C08B37/00
CPC分类号： C08L1/20 , B01D53/228 , B01D67/0079 , B01D71/00 , B01D71/16 , B01D71/52 , B01D71/70 , B01D2257/102 , B01D2257/504 , C08B7/00 , C08G65/33306 , C08G65/33351 , C08G65/336 , C08G2650/58 , C08L71/02 , Y02C10/10 , Y02P20/152
摘要： The present invention is for crosslinked membranes and in particular for crosslinked poly(ethylene oxide)-cellulose acetate-silsesquioxane (PEO-CA-Si) organic-inorganic hybrid membranes and their use in gas separation. These crosslinked PEO-CA-Si membranes were prepared by in-situ sol-gel co-condensation of crosslinkable PEO-organotrialkoxysilane and CA-organotrialkoxysilane polymers in the presence of acetic acid catalyst during the formation of membranes. The crosslinkable PEO- and CA-organotrialkoxysilane polymers were synthesized via the reaction between the hydroxyl groups on PEO (or on CA) and the isocyanate on organotrialkoxysilane to form urethane linkages under mild conditions. The crosslinked PEO-CA-Si membranes exhibited both increased selectivity of CO2/N2 and CO2 permeability as compared to a CA membrane, suggesting that these membranes are very promising for gas separations such as CO2/N2 separation.
摘要翻译：本发明涉及交联膜，特别是交联聚（环氧乙烷） - 醋酸纤维素 - 倍半硅氧烷（PEO-CA-Si）有机 - 无机混合膜及其在气体分离中的应用。这些交联的PEO-CA-Si膜通过在形成膜期间在乙酸催化剂存在下通过可交联的PEO-有机三烷氧基硅烷和CA-有机三烷氧基硅烷聚合物的原位溶胶 - 凝胶共缩合制备。通过PEO（或CA）上的羟基与有机三烷氧基硅烷上的异氰酸酯之间的反应合成可交联PEO-和CA-有机三烷氧基硅烷聚合物，以在温和条件下形成氨基甲酸酯键。与CA膜相比，交联的PEO-CA-Si膜显示出增加的CO 2 / N 2选择性和CO 2渗透性，这表明这些膜对于气体分离如CO 2 / N 2分离是非常有希望的。

10. 发明申请

US20110072973A1 POLYBENZOXAZOLE MEMBRANES 有权
标题翻译：聚苯并噻唑膜
公开(公告)号：US20110072973A1
公开(公告)日：2011-03-31
申请号：US12879208
申请日：2010-09-10
申请人： Chunqing Liu , Raisa Minkov , Man-Wing Tang , Lubo Zhou , Jeffery C. Bricker
发明人： Chunqing Liu , Raisa Minkov , Man-Wing Tang , Lubo Zhou , Jeffery C. Bricker
IPC分类号： B01D53/22
CPC分类号： B01D53/228 , B01D61/362 , B01D67/0011 , B01D71/62 , B01D71/82 , B01D2323/08
摘要： The present invention discloses a blends of an aromatic polyimide polymer and a polymer containing aromatic sulfonic acid groups that can be converted into polybenzoxazole (PBO) membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO2/CH4 and H2/CH4 separations compared to PBO membranes prepared from corresponding aromatic polyimide membranes without a poly(styrene sulfonic acid) polymer.
摘要翻译：本发明公开了芳族聚酰亚胺聚合物和含有芳族磺酸基团的聚合物的混合物，其可以转化成用于气体，蒸气和液体分离的聚苯并恶唑（PBO）膜。通过热处理含有0.05至20重量％聚（苯乙烯磺酸）聚合物的芳族聚酰亚胺膜制备的PBO膜。与没有聚（苯乙烯磺酸）聚合物的相应芳族聚酰亚胺膜制备的PBO膜相比，这些聚合物显示出对CO 2 / CH 4和H 2 / CH 4分离的选择性提高高达95％。

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