| 초록 |
Thermally rearranged (TR) polymers are known for a decade as a versatile separating material with their characteristic bimodal cavity distribution and flexible cavity size tunability yielding both high permeability and high selectivity. Central to this approach for preparing these intermediate sized cavities is controlled free volume element formation via spatial rearrangement of the rigid polymer chain segments in the glassy phase. TR polymers have shown excellent processability enabling to fabricate various final products. In this presentation, we would like to present recent progress on high flux TR hollow fiber development, in particular for CO2 capture from simulated flue gas stream using high flux TR hollow fibers developed recently from our lab. CO2 flux of as-spun TR hollow fiber membrane was as high as 2500 GPU with CO2/N2 selectivity of ~20 and the resultant membrane module performance will be presented here, targeting the carbon capture purpose. |
