发明名称 |
POLYIMIDE-BASED CARBON MOLECULAR SIEVE MEMBRANE FOR ETHYLENE/ETHANE SEPARATIONS |
摘要 |
Carbon molecular sieve membranes having desirable selectivity for ethylene/ethane separations are prepared from a 3,3',4,4'-benzophenonetetracarboxylic acid dianhydride 5(6)-amino-1-(4'-aminophenyl)-l,3,3-trimethylindane 4,4- bismaleimidodiphenyl-methane (BTDA-DAPI) precursor solution that is then formed into films or hollow fibers which are pyrolyzed under vacuum or an inert atmosphere to form carbon molecular sieve membranes. Pyrolysis condition variables, including ramp rate, thermal soak time and temperature, are used to optimize the membrane's separation performance. |
申请公布号 |
WO2012148563(A1) |
申请公布日期 |
2012.11.01 |
申请号 |
WO2012US26895 |
申请日期 |
2012.02.28 |
申请人 |
GEORGIA TECH RESEARCH CORPORATION;KOROS, WILLIAM, J.;RUNGTA, MEHA;XU, LIREN |
发明人 |
KOROS, WILLIAM, J.;RUNGTA, MEHA;XU, LIREN |
分类号 |
B01D67/00;B01D53/22;B01D69/02;B01D71/02 |
主分类号 |
B01D67/00 |
代理机构 |
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代理人 |
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