| 초록 |
Carbon molecular sieve membrane have been studied for a variety of industrial separation including natural gas purification, post-combustion carbon capture, air separation, and organic vapor separations. It has exhibited excellent gas separation performance toward CO2/N2 and CO2/CH4 separations, and shown to be resilient to plastization under high feed pressure feed (＞ 60 bar), which is a major drawback of polymeric membrane. CMS membrane has profits in both separation performance and physical strength whereas manufacturing cost and scale-up through modulation remains as major challenges. One way to solve these problems is to use low-cost support with hollow fiber geometry. Alumina hollow fibers can be made from cheap alumina powders (＜ 20$/kg), and is robust and easily processable into membrane modules. Motivated by this, we fabricated thin CMS membranes on alumina hollow fibers for olefin/paraffin separation, and discovered coupling effects in diffusion of C3H6/C3H8 mixture. |
