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Multi-stage Process Study of PEI-PDMS Hollow Fiber Composite Membrane Modules for $H_2/CO_2$ Mixed Gas Separation  

Lee, Chung Seop (Department of Chemical Engineering & Nano-Bio Technology, College of Life Science & Nano Technology, Hannam University)
Cho, Eun Hye (Department of Chemical Engineering & Nano-Bio Technology, College of Life Science & Nano Technology, Hannam University)
Ha, Seong Yong (Airrane Co. Ltd.)
Chung, Jong Tae (Gas Resources Technology Center, Korea Gas Corporation R&D Division, Korea Gas Corporation Co. Ltd.)
Rhim, Ji Won (Department of Chemical Engineering & Nano-Bio Technology, College of Life Science & Nano Technology, Hannam University)
Publication Information
Membrane Journal / v.23, no.1, 2013 , pp. 1-11 More about this Journal
Abstract
Poly(ether imide) (PEI)-poly(dimethylsioxane) (PDMS) composite membranes and their modules were prepared, which are capable of selective $CO_2$ separation from the mixture gas. The gas flow rate, concentration, recovery ratio of $H_2$ and removal ratio of $CO_2$ outflowing by stage-cut were characterized at $25^{\circ}C$ and the constant pressure. In addition, to increase the recovery ratio of $H_2$, one stage, two stage series connection, and three stages series + parallel connection tests were carried out. When the stage-cut was 0.32 for the three stages connection operation, the concentration $H_2$ of the produced gas and the recovery ratio of $H_2$ was 97% and 85%, respectively. And also the removal ratio of $CO_2$ was 90% was obtained and the recycled gas concentration was similar with that of the feed gases.
Keywords
PDMS; PEI; hollow fiber composite membrane; $H_2/CO_2$ separation; stage-cut;
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Times Cited By KSCI : 3  (Citation Analysis)
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