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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.2 pp.119-128

PEI/PEBAX 복합 중공사 막을 이용한 수분 제거에 관한 연구

박 천 동*, 형 찬 희*, 김 기 홍*, 최 원 길*, 박 영 성**, 이 형 근*,†
*한국에너지기술연구원, **대전대학교 환경공학과

Study on the Removal of Water Vapor Using PEI/PEBAX Composite Hollow Fiber Membrane

Hyung-Keu Lee*,†, Chun-Dong Park*, Chan-Heui Hyung*, Kee-Hong Kim*, Won-Kil Choi*, Yeong-Seong Park**
*Korea Institute of Energy Research, Daejeon 305-343, Korea
**Department of Environmental Engineering, Daejeon University, Daejeon 300-716, Korea
(Received November 26, 2012, Revised January 10, 2013, Accepted February 5, 2013)


In this research, PEI/PEBAX composite hollow fiber membrane was used for the removal of water vapor from gases. PEI (Polyetherimide) substrate membrane was spinned by dry-wet phase inversion method and coated with PEBAX (Polyether block amides) 3533 and PEBAX1657. Fabricated fibers typically had an asymmetric structure of a dense top layer supported by a sponge-like substructure through scanning electron microscopy (SEM). H2O/N2 mixture gas was used to compare the performance of separation according to temperature, pressure and water activity. The results of PEBAX3533 and PEBAX1657 composite membranes respectively showed H2O/N2 selectivity of 61.7∼118.5 and 85.3∼175.4 according to operating conditions. PEBAX3533 composite hollow fiber membranes module showed the water vapor removal of 90%.