Polyimide-based carbon molecular sieve membrane for ethylene / ethane separation

摘要

The carbon molecular sieve film which possesses desirable selectivity for ethylene/ethane separation, 3,3 ' and 4,4 ' the - benzophenone tetracarboxylic dianhydride 5(6) amino 1 (4 ' the - aminophenyl) the 1,3,3 torimechiruindan 4,4 bismaleimide diphenyl - methane (BTDADAPI) forms the precursive body solution in the film, or the hollow yarn that heat resolution under the vacuum or under inactive atmosphere, is prepared by forming in the carbon molecular sieve film. In order to optimize the separable performance of that film, lamp speed, soaking time and alteration possible entry of the thermal decomposition condition for including temperature are used.