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멤브레인 = Membrane Journal v.21 no.3, 2011년, pp.256 - 262   피인용횟수: 1

저농도 $SF_6$ 기체혼합물로부터 $SF_6$의 회수
Recovery of $SF_6$ from Gas Mixtures with Low Concentration of $SF_6$

이현정    (한국과학기술연구원, 물환경센터   ); 이현경    (상명대학교 공업화학과   ); 최호상    (경일대학교 화학공학과   ); 이상협    (한국과학기술연구원, 물환경센터  );
  • 초록

    저농도의 $SF_6$ 를 포함하고 있는 기체 혼합물(10% $SF_6$ /70% $N_2$ /19% $O_2$ /1% $CF_4$ )로부터 $SF_6$ 를 분리 및 회수하기 위한 PSF막과 PC막의 성능에 대하여 연구하였다. 회수된 기체 내의 $SF_6$ 의 농도와 회수율 그리고 혼합기체( $N_2/SF_6$ , $O_2/SF_6$ , $CF_4/SF_6$ )의 선택도는 배출 유량과 온도의 함수로 측정하였다. PSF막과 PC막 모두 회수된 기체 내의 $SF_6$ 농도는 배출 유량이 증가하면서 감소하였으며 온도가 증가함에 따라 증가하였다. 동일한 실험조건에서는 PSF막에서 회수된 기체 내의 $SF_6$ 의 농도가 PC막에서보다 높게 나타났다. 최대회수율은 298.15 K과 배출유량 150cc/min에서 PSF막의 경우 95.9%이고 PC막의 경우 67.8%를 나타냈다. $CF_4/SF_6$ 를 제외한 $N_2/SF_6$ 와 $O_2/SF_6$ 의 실제 선택도는 PSF막이 PC막보다 더 높게 나타났다.


    This study describes the performance of PSF and PC membranes for separation and recovery of $SF_6$ from gas mixtures (10% $SF_6$ /70% $N_2$ /19% $O_2$ /1% $CF_4$ ) containing low concentration of $SF_6$ . The $SF_6$ concentration in retentate, recovery efficiency and selectivity of mixed gases were measured as a function of retentate flow rate and temperature. The concentration of $SF_6$ in the gas recovered from PSF and PC membrane respectively decreased with increase of retentate flow rate and increased with increase of temperature. The values of $SF_6$ concentration in retentate of PSF membrane were higher than those of PC membrane at constant experimental conditions. The maximum value of recovery efficiency of PSF and PC membranes are 95.9% and 67.8%, respectively, under 298.15 K and 150 cc/min of retentate flow rate. With the exception of $CF_4/SF_6$ , the real selectivities of $N_2/SF_6$ and $O_2/SF_6$ at PSF membrane were higher than those of PC membrane.


  • 주제어

    $SF_6$ .   gas mixture .   membrane .   separation .   recovery.  

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  • 이 논문을 인용한 문헌 (1)

    1. Ryu, Jae-Yong ; Kim, Jong-Bum ; Choi, Chang-Yong ; Lee, Sang-Joon ; Kwak, Hee-Sung ; Yun, Young-Min 2012. "A Study on Destruction Potential of Sulfur Hexafluoride (SF6) Using High Ionization Energy" 한국대기환경학회지 = Journal of Korean Society for Atmospheric Environment, 28(4): 446~453     

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