Separation and Recovery of SF6 gas from N2/O2/CF4/SF6 gas mixtures by using a polymer hollow fiber membranes

Title
Separation and Recovery of SF6 gas from N2/O2/CF4/SF6 gas mixtures by using a polymer hollow fiber membranes
Authors
이현정이민우이현경이상협
Keywords
srparation; recovery; hollow fiber membrane
Issue Date
2010-11
Publisher
The Membrane Society of Korea
Citation
, 181-181
Abstract
SF6(Sulfur hexafluoride) is known for high GWP(Global Warming Potential) gas that is evaluated by the IPCC(Intergovernmental Panel of Climate Change). Recently, the recovery-separation of SF6 research area, including permeation properties studies using various membrane's materials and the practical operation of recovery-separation using membrane of waste SF6 gas is in the initial state. So, in this research, we observed the possibility of application membrane separation process to SF6 concentration and recycle. We observed the effect of various parameters on the recovery efficiency of SF6 from N2/O2/CF4/SF6 gas mixtures. And we observed the experiments results that a polymer hollow fiber membrane could efficiently separate SF6 gas from N2/O2/CF4/SF6 gas mixtures is higher than 95%. And the recovery efficiency of SF6 increased with a decrease of feed pressure and an increase of stage-cut. From the experimental results, the maximum recovery efficiency of SF6 was observed in Polysulfone(PSF) membranes. The recovery efficiency is higher than 97%. And the maximum recovery concentration of SF6 in recovered gas was observed in Polycarbonate(PC) membrane. The maximum recovery concentration of SF6 is higher than 95%. The application of membrane separation process to treatment of SF6 gas is very attractive and envirionmental process.
URI
http://pubs.kist.re.kr/handle/201004/38577
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KIST Publication > Conference Paper
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