公开(公告)号：US07846496B2

公开(公告)日：2010-12-07

申请号：US11679121

申请日：2007-02-26

申请人： Chunqing Liu ,  Stephen T. Wilson ,  Beth McCulloch

发明人： Chunqing Liu ,  Stephen T. Wilson ,  Beth McCulloch

IPC分类号： B05D5/00

CPC分类号： B01D67/0079 ,  B01D69/148 ,  B01D71/028 ,  Y02C10/10

摘要： Mixed matrix membranes that are capable of separation and purification of gas mixtures are disclosed. These membranes comprise polymers that include dispersed therein nanomolecular sieve particles. In a preferred embodiment, the nanomolecular sieve particles contain attached functional groups to prevent their agglomeration.

摘要翻译： 公开了能够分离和纯化气体混合物的混合基质膜。 这些膜包括分散在纳米分子筛颗粒中的聚合物。 在优选的实施方案中，纳米分子筛颗粒含有附着的官能团以防止其结合。

公开(公告)号：US20100288701A1

公开(公告)日：2010-11-18

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： B01D61/58 ,  B01D53/22 ,  B01D63/04 ,  B01D71/56 ,  B01D71/64

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.

摘要翻译： 本发明涉及使用多级膜系统进行气体，蒸汽和液体分离。 在该多级膜系统中，对膜前或膜前和膜进行二次膜的预选择，高选择性和高渗透性或至少高选择性的聚苯并恶唑膜或交联聚苯并恶唑膜。 初级膜可以来自常规玻璃状聚合物。 这种多级膜系统可以降低气体，蒸汽和液体分离的阶段间压缩成本，提高产品回收率和产品纯度。 与使用所有高成本聚苯并恶唑膜或交联聚苯并恶唑膜的系统相比，还可以节省成本。

公开(公告)号：US20100243567A1

公开(公告)日：2010-09-30

申请号：US12412653

申请日：2009-03-27

申请人： Chunqing Liu ,  Raisa Serbayeva ,  Man-Wing Tang ,  Lubo Zhou ,  Peter K. Coughlin

发明人： Chunqing Liu ,  Raisa Serbayeva ,  Man-Wing Tang ,  Lubo Zhou ,  Peter K. Coughlin

IPC分类号： B01D53/22 ,  B01D71/64 ,  B01D61/00 ,  C08L77/06 ,  C08F2/48

CPC分类号： B01D71/64 ,  B01D67/0088 ,  B01D2323/08 ,  B01D2323/30

摘要： The present invention discloses a new type of high performance polymer membranes derived from aromatic polyimide membranes and methods for making and using these membranes. The polymer membranes described in the present invention were derived from aromatic polyimide membranes by crosslinking followed by thermal treating. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The high performance polymer membranes showed significantly improved permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The high performance polymer membranes also showed significantly improved selectivity for gas separations compared to the thermal-treated but non-UV-crosslinked aromatic polyimide membranes. The high performance polymer membranes of the present invention are suitable for liquid, gas, and vapor separations, as well as for catalysis and fuel cell applications.

摘要翻译： 本发明公开了一种衍生自芳族聚酰亚胺膜的新型高性能聚合物膜以及制造和使用这些膜的方法。 本发明中描述的聚合物膜通过交联然后进行热处理从芳族聚酰亚胺膜衍生而来。 芳族聚酰亚胺膜由芳族聚酰亚胺聚合物制成，其中包含杂环酰亚胺氮原子的邻接羟基官能团和聚合物主链中的可交联官能团。 与没有任何处理的芳族聚酰亚胺膜相比，高性能聚合物膜显示出显着改善气体分离的渗透性。 与热处理但非UV交联的芳族聚酰亚胺膜相比，高性能聚合物膜还显示出对气体分离的选择性显着提高。 本发明的高性能聚合物膜适用于液体，气体和蒸汽分离，以及催化和燃料电池应用。

公开(公告)号：US20100137124A1

公开(公告)日：2010-06-03

申请号：US12412629

申请日：2009-03-27

申请人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

发明人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

IPC分类号： B01J20/28 ,  C08G69/48 ,  C08J3/28

CPC分类号： C08G75/32 ,  B01D67/0093 ,  B01D71/62 ,  B01D2323/30 ,  B01D2323/345 ,  B01J20/26 ,  B01J20/262 ,  B01J20/267 ,  C08G73/1042 ,  C08G73/22

摘要： In the present invention high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes and methods for making and using these membranes have been developed. The cross-linked polybenzoxazole and polybenzothiazole polymer membranes are prepared by: 1) first synthesizing polyimide polymers comprising pendent functional groups (e.g., —OH or —SH) ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone; 2) fabricating polyimide membranes from these polymers; 3) converting the polyimide membranes to polybenzoxazole or polybenzothiazole membranes by heating under inert atmosphere such as nitrogen or vacuum; and 4) finally converting the membranes to high performance cross-linked polybenzoxazole or polybenzothiazole membranes by a crosslinking treatment, preferably UV radiation. The membranes can be fabricated into any convenient geometry. The high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes of the present invention are suitable for a variety of liquid, gas, and vapor separations.

公开(公告)号：US20100133192A1

公开(公告)日：2010-06-03

申请号：US12412649

申请日：2009-03-27

申请人： Chunqing Liu ,  Peter K. Coughlin ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

发明人： Chunqing Liu ,  Peter K. Coughlin ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

IPC分类号： B01D53/22 ,  B01D39/16 ,  B01D61/02 ,  C08G73/10

CPC分类号： B01D71/62 ,  B01D53/228 ,  B01D67/0093 ,  B01D2323/08 ,  B01D2323/30 ,  B01D2323/345 ,  C08G73/1039 ,  C08G73/1042 ,  C08G73/1046 ,  C08G73/1064 ,  C08G73/16 ,  C08L79/08 ,  Y02C20/20

摘要： The present invention discloses a new type of high performance polymer membranes prepared from aromatic polyimide membranes by thermal treating and crosslinking and methods for making and using these membranes. The polymer membranes were prepared from aromatic polyimide membranes by thermal treating under inert atmosphere followed by crosslinking preferably by using a UV radiation source. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The membranes showed significantly improved selectivity and permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The membranes can be fabricated into any convenient geometry and are not only suitable for a variety of liquid, gas, and vapor separations, but also can be used for other applications such as for catalysis and fuel cell applications.

摘要翻译： 本发明公开了通过热处理和交联由芳族聚酰亚胺膜制备的新型高性能聚合物膜以及制造和使用这些膜的方法。 聚合物膜由芳族聚酰亚胺膜通过在惰性气氛下热处理制备，然后优选通过使用UV辐射源进行交联。 芳族聚酰亚胺膜由芳族聚酰亚胺聚合物制成，其中包含杂环酰亚胺氮原子的邻接羟基官能团和聚合物主链中的可交联官能团。 与没有任何处理的芳族聚酰亚胺膜相比，膜显示出气体分离的选择性和渗透性显着提高。 膜可以制造成任何方便的几何形状，并且不仅适用于各种液体，气体和蒸汽分离，而且还可以用于其它应用，例如用于催化和燃料电池应用。

公开(公告)号：US20100133187A1

公开(公告)日：2010-06-03

申请号：US12412647

申请日：2009-03-27

申请人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

发明人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

IPC分类号： B01D61/36 ,  B01D53/22 ,  B01D71/06

CPC分类号： B01D69/148 ,  B01D53/228 ,  B01D67/0079 ,  B01D71/028 ,  B01D71/62 ,  B01D2256/16 ,  B01D2256/18 ,  B01D2256/24 ,  B01D2257/108 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2258/06 ,  H01M8/1048 ,  H01M2300/0082 ,  Y02C10/10 ,  Y02C20/20

摘要： The present invention discloses new types of polybenzoxazole-based mixed matrix membranes and methods for making and using these membranes. The polybenzoxazole-based mixed matrix membranes are prepared by fabricating a polyimide-based mixed matrix membrane by dispersing molecular sieve particles in a continuous aromatic polyimide matrix with pendent hydroxyl groups ortho to the heterocyclic imide nitrogen; and then converting the polyimide-based mixed matrix membrane to a polybenzoxazole-based mixed matrix membrane by heating between 200° and 600° C. under inert atmosphere or vacuum. The polybenzoxazole-based mixed matrix membranes of the present invention can be fabricated into any convenient geometry such as flat sheet (or spiral wound), tube, hollow fiber, or thin film composite. These polybenzoxazole-based mixed matrix membranes exhibit high thermal stability, significantly higher selectivity than the neat polybenzoxazole polymer membranes, and much higher permeability than traditional mixed matrix membranes.

摘要翻译： 本发明公开了新型的基于苯并恶唑的混合基质膜，以及制造和使用这些膜的方法。 基于聚苯并恶唑的混合基质膜通过将分子筛颗粒分散在具有与杂环酰亚胺氮原子相邻的侧羟基的连续芳族聚酰亚胺基体中制备聚酰亚胺基混合基质膜来制备; 然后通过在惰性气氛或真空下在200℃和600℃之间加热将聚酰亚胺基混合基质膜转变成聚苯并恶唑类混合基质膜。 本发明的基于聚苯并恶唑的混合基质膜可以制成任何方便的几何形状，例如平板（或螺旋缠绕），管，中空纤维或薄膜复合材料。 这些基于聚苯并恶唑的混合基质膜具有高的热稳定性，比纯聚苯并恶唑聚合物膜显着更高的选择性，并且比传统的混合基质膜具有更高的渗透性。

公开(公告)号：US20100133171A1

公开(公告)日：2010-06-03

申请号：US12412643

申请日：2009-03-27

申请人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

发明人： Chunqing Liu ,  Man-Wing Tang ,  Raisa Serbayeva ,  Lubo Zhou

IPC分类号： B01D39/16

CPC分类号： B01D71/82 ,  B01D67/0079 ,  B01D69/148

摘要： The present invention discloses new types of polybenzoxazole-based mixed matrix membranes and methods for making and using these membranes. The polybenzoxazole-based mixed matrix membranes are prepared by fabricating a polyimide-based mixed matrix membrane by dispersing molecular sieve particles in a continuous aromatic polyimide matrix with pendent hydroxyl groups ortho to the heterocyclic imide nitrogen; and then converting the polyimide-based mixed matrix membrane to a polybenzoxazole-based mixed matrix membrane by heating between 300° and 600° C. under inert atmosphere or vacuum. The polybenzoxazole-based mixed matrix membranes of the present invention can be fabricated into any convenient geometry such as flat sheet (or spiral wound), tube, hollow fiber, or thin film composite. These polybenzoxazole-based mixed matrix membranes exhibit high thermal stability, significantly higher selectivity than the neat polybenzoxazole polymer membranes, and much higher permeability than traditional mixed matrix membranes.

摘要翻译： 本发明公开了新型的基于苯并恶唑的混合基质膜，以及制造和使用这些膜的方法。 基于聚苯并恶唑的混合基质膜通过将分子筛颗粒分散在具有与杂环酰亚胺氮原子相邻的侧羟基的连续芳族聚酰亚胺基体中制备聚酰亚胺基混合基质膜来制备; 然后通过在惰性气氛或真空下在300℃和600℃之间加热将聚酰亚胺基混合基质膜转变成聚苯并恶唑类混合基质膜。 本发明的基于聚苯并恶唑的混合基质膜可以制成任何方便的几何形状，例如平板（或螺旋缠绕），管，中空纤维或薄膜复合材料。 这些基于聚苯并恶唑的混合基质膜具有高的热稳定性，比纯聚苯并恶唑聚合物膜显着更高的选择性，并且比传统的混合基质膜具有更高的渗透性。

公开(公告)号：US20090277837A1

公开(公告)日：2009-11-12

申请号：US12115726

申请日：2008-05-06

申请人： Chunqing Liu ,  Man-Wing Tang

发明人： Chunqing Liu ,  Man-Wing Tang

IPC分类号： B01D71/32 ,  B05D3/00 ,  B01D53/22 ,  B01D61/00 ,  B01D67/00

CPC分类号： B01D61/025 ,  B01D61/362 ,  B01D67/0011 ,  B01D67/0079 ,  B01D67/0088 ,  B01D69/10 ,  B01D69/12 ,  B01D69/141 ,  B01D71/028 ,  B01D71/10 ,  B01D71/32 ,  B01D2325/022 ,  B01D2325/24 ,  C10K1/20 ,  Y02A20/131

摘要： The present invention discloses fluoropolymer coated membranes and methods for making and using these membranes. The fluoropolymer coated membranes described in the current invention are prepared by coating a porous asymmetric membrane layer with a thin layer of fluoropolymer coating. The porous asymmetric membrane layer comprises an asymmetric cellulosic membrane, an asymmetric polymer membrane, or an asymmetric molecular sieve/polymer mixed matrix membrane with a low selectivity and high permeance. The fluoropolymer coating improves the selectivity of the porous asymmetric membrane layer and maintains the membrane performance with time. The fluoropolymer coated membranes are suitable for a variety of liquid, gas, and vapor separations such as desalination of water by reverse osmosis, non-aqueous liquid separation such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO2/CH4, CO2/N2, H2/CH4, O2/N2, olefin/paraffin, iso/normal paraffins separations, and other light gas mixture separations.

摘要翻译： 本发明公开了含氟聚合物涂层膜以及制造和使用这些膜的方法。 在本发明中描述的含氟聚合物涂布的膜通过涂覆具有薄层氟聚合物涂层的多孔不对称膜层来制备。 多孔非对称膜层包含不对称纤维素膜，不对称聚合物膜或具有低选择性和高渗透性的不对称分子筛/聚合物混合基质膜。 含氟聚合物涂层改善了多孔不对称膜层的选择性并随时间保持膜的性能。 含氟聚合物涂层膜适用于各种液体，气体和蒸气分离，如通过反渗透脱水，非水液体分离，如汽油和柴油燃料的深度脱硫，乙醇/水分离，渗透蒸发脱水 /有机混合物，CO 2 / CH 4，CO 2 / N 2，H 2 / CH 4，O 2 / N 2，烯烃/石蜡，异/正链烷烃分离和其它轻质气体混合物分离。

公开(公告)号：US20090152763A1

公开(公告)日：2009-06-18

申请号：US11954454

申请日：2007-12-12

申请人： Chunqing Liu ,  Stephen T. Wilson ,  David A. Lesch

发明人： Chunqing Liu ,  Stephen T. Wilson ,  David A. Lesch

IPC分类号： B29D7/01

CPC分类号： B01D69/148 ,  B01D67/0079 ,  B01D69/06 ,  B01D71/028 ,  B01D2325/022

摘要： The present invention discloses an approach for making mixed matrix membranes (MMMS) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. This invention also pertains to control of the thickness of the thin dense selective mixed matrix membrane layer that is equal to or greater than the particle size of the largest molecular sieve particles for making large scale asymmetric MMMs. In particular, the invention is directed to making asymmetric flat sheet MMM by a phase inversion technique. The MMMs of the present invention exhibit at least 20% increase in selectivity compared to the polymer membranes prepared from their corresponding continuous polymer matrices. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations.

摘要翻译： 本发明公开了一种制备混合基质膜（MMMS）的方法和使用这些膜的方法。 这些MMM含有连续的聚合物基质和分散的微孔分子筛颗粒。 本发明还涉及等于或大于用于制造大规模不对称MMM的最大分子筛颗粒的粒度的薄致密选择性混合基质膜层的厚度的控制。 特别地，本发明涉及通过相位反转技术制造不对称平板MMM。 与由其相应的连续聚合物基质制备的聚合物膜相比，本发明的MMM显示出至少20％的选择性增加。 本发明的MMM适用于各种液体，气体和蒸气分离。

公开(公告)号：US20090152755A1

公开(公告)日：2009-06-18

申请号：US11954463

申请日：2007-12-12

申请人： Chunqing Liu ,  Stephen T. Wilson ,  David A. Lesch

发明人： Chunqing Liu ,  Stephen T. Wilson ,  David A. Lesch

IPC分类号： D04H3/16

CPC分类号： B01D69/148 ,  B01D67/0079 ,  B01D69/08 ,  B01D69/087 ,  B01D71/028

摘要： The present invention discloses a method for making mixed matrix membranes (MMMs) and methods for using these membranes. These MMMs contain a continuous polymer matrix and dispersed microporous molecular sieve particles. This invention also pertains to control the thickness of the thin dense selective mixed matrix layer equal to or greater than the particle size of the largest molecular sieve particles for making large scale asymmetric MMMs. In particular, the invention is directed to make asymmetric hollow fiber MMM by a phase inversion technique. The MMMs of the present invention exhibit at least 20% increase in selectivity compared to the polymer membranes prepared from their corresponding continuous polymer matrices. The MMMs of the present invention are suitable for a variety of liquid, gas, and vapor separations.

摘要翻译： 本发明公开了一种制备混合基质膜（MMM）的方法和使用这些膜的方法。 这些MMM含有连续的聚合物基质和分散的微孔分子筛颗粒。 本发明还涉及控制等于或大于用于制造大规模非对称MMM的最大分子筛颗粒的粒度的薄致密选择性混合基质层的厚度。 特别地，本发明涉及通过相位反转技术制造不对称中空纤维MMM。 与由其相应的连续聚合物基质制备的聚合物膜相比，本发明的MMM显示出至少20％的选择性增加。 本发明的MMM适用于各种液体，气体和蒸气分离。