Invention Application
- Patent Title: POLYIMIDE GAS SEPARATION MEMBRANES
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Application No.: PCT/US2012/040057Application Date: 2012-05-31
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Publication No.: WO2012173776A3Publication Date: 2012-12-20
- Inventor: LIU, Chunqing , BOWEN, Travis C. , HARBERT, Emily G. , MINKOV, Raisa , FAHEEM, Syed A. , OSMAN, Zara
- Applicant: UOP LLC , LIU, Chunqing , BOWEN, Travis C. , HARBERT, Emily G. , MINKOV, Raisa , FAHEEM, Syed A. , OSMAN, Zara
- Applicant Address: 25 East Algonquin Road P. O. Box 5017 Des Plaines, Illinois 60017-5017 US
- Assignee: UOP LLC,LIU, Chunqing,BOWEN, Travis C.,HARBERT, Emily G.,MINKOV, Raisa,FAHEEM, Syed A.,OSMAN, Zara
- Current Assignee: UOP LLC,LIU, Chunqing,BOWEN, Travis C.,HARBERT, Emily G.,MINKOV, Raisa,FAHEEM, Syed A.,OSMAN, Zara
- Current Assignee Address: 25 East Algonquin Road P. O. Box 5017 Des Plaines, Illinois 60017-5017 US
- Agency: GOLDBERG, Mark
- Priority: US61/498,107 20110617
- Main IPC: B01D71/64
- IPC: B01D71/64 ; B01D61/02 ; C02F1/44
Abstract:
The present invention discloses a new type of polyimide membrane with high permeances and high selectivities for gas separations and particularly for CO 2 /CH 4 and H 2 /CH 4 separations. The polyimide membranes have CO 2 permeability of 50 Barrers or higher and single-gas selectivity for CO 2 /CH 4 of 15 or higher at 50°C under 791 kPa for CO 2 /CH 4 separation. The polyimide membranes have UV cross-linkable functional groups and can be used for the preparation of UV cross-linked polyimide membranes having CO 2 permeability of 20 Barrers or higher and single-gas selectivity for CO 2 /CH 4 of 35 or higher at 50°C under 791 kPa for CO 2 /CH 4 separation.
Information query
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