HIGH PERMEANCE POLYIMIDE MEMBRANES FOR AIR SEPARATION
摘要
The present invention discloses a new type of polyimide membranes including hollow fiber and flat sheet membranes with high permeances for air separations and a method of making these membranes. The new polyimide hollow fiber membranes have O2 permeance higher than 300 GPU and O2/N2 selectivity higher than 3 at 60°C under 308 kPa for O2/N2 separation. The new polyimide hollow fiber membranes also have CO2 permeance higher than 1000 GPU and single-gas selectivity for CO2/CH4 higher than 20 at 50°C under 791 kPa for CO2/CH4 separation.
申请公布号
WO2011149654(A2)
申请公布日期
2011.12.01
申请号
WO2011US35863
申请日期
2011.05.10
申请人
UOP LLC;LIU, CHUNQING;MINKOV, RAISA;FAHEEM, SYED A.;BOWEN, TRAVIS C.;CHIOU, JEFFREY J.
发明人
LIU, CHUNQING;MINKOV, RAISA;FAHEEM, SYED A.;BOWEN, TRAVIS C.;CHIOU, JEFFREY J.