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ISSN : 1226-0088(Print)
ISSN : 2288-7253(Online)
Membrane Journal Vol.23 No.1 pp.1-11

H2/CO2 혼합기체의 분리를 위한 PEI-PDMS 중공사 복합막 모듈의 다단 공정 연구

이 충 섭*, 조 은 혜*, 하 성 용**, 정 종 태***, 임 지 원*,†
*한남대학교 대덕밸리캠퍼스 생명·나노과학대학 나노생명화학공학과,
**(주)에어레인, ***한국가스공사 연구개발원

Multi-stage Process Study of PEI-PDMS Hollow Fiber Composite Membrane Modules for H2/CO2 Mixed Gas Separation

Ji Won Rhim*,†, Chung Seop Lee*, Eun Hye Cho*, Seong Yong Ha**, Jong Tae Chung***
*Department of Chemical Engineering & Nano-Bio Technology, College of Life Science & Nano Technology, Hannam University, Daejeon 305-811, Korea
**Airrane Co. Ltd, 217-2, Shinsung-dong, Yusung-gu, Daejeon 306-791, Korea
***Gas Resources Technology Center, Korea Gas Corporation R&D Division, Korea Gas Corporation Co. Ltd, 364, Incheon 406-840, Korea
(Received November 20, 2012, Revised January 28, 2013, Accepted February 5, 2013)


Poly(ether imide) (PEI)-poly(dimethylsioxane) (PDMS) composite membranes and their modules were prepared,which are capable of selective CO2 separation from the mixture gas. The gas flow rate, concentration, recovery ratioof H2and removal ratio of CO2 outflowing by stage-cut were characterized at 25°C and the constant pressure. In addition,to increase the recovery ratio of H2, one stage, two stage series connection, and three stages series + parallel connectiontests were carried out. When the stage-cut was 0.32 for the three stages connection operation, the concentration H2 of theproduced gas and the recovery ratio of H2 was 97% and 85%, respectively. And also the removal ratio of CO2 was 90%was obtained and the recycled gas concentration was similar with that of the feed gases.