发明名称 |
PROCESS OF SEPARATING GASES USING POLYIMIDE MEMBRANES |
摘要 |
The present invention discloses a new type of polyimide membrane with high permeances and high selectivities for gas separations and particularly for CO2/CH4 and H2/CH4 separations. The polyimide membranes have CO2 permeability of 50 Barrers or higher and single-gas selectivity for CO2/CH4 of 15 or higher at 50° C. under 791 kPa for CO2/CH4 separation. The polyimide membranes have UV cross-linkable functional groups and can be used for the preparation of UV cross-linked polyimide membranes having CO2 permeability of 20 Barrers or higher and single-gas selectivity for CO2/CH4 of 35 or higher at 50° C. under 791 kPa for CO2/CH4 separation.
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申请公布号 |
US2012323059(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
US201113278467 |
申请日期 |
2011.10.21 |
申请人 |
LIU CHUNQING;BOWEN TRAVIS C.;HARBERT EMILY G.;MINKOV RAISA;FAHEEM SYED A.;OSMAN ZARA;UOP LLC |
发明人 |
LIU CHUNQING;BOWEN TRAVIS C.;HARBERT EMILY G.;MINKOV RAISA;FAHEEM SYED A.;OSMAN ZARA |
分类号 |
C07C7/144;B01D53/22;B01D71/64 |
主分类号 |
C07C7/144 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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