Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Pervaporation Separation of Water/Alcohol Mixtures Using PVA/SSA/PSSA_MA Ion Exchange Membranes

PVA/SSA/PSSA_MA 이온교환막을 이용한 물-알코올 계의 투과증발 분리

  • Jeon, Yi Seul (Department of Chemical Engineering, Hannam University) ;
  • Rhim, Ji Won (Department of Chemical Engineering, Hannam University)
  • 전이슬 (한남대학교 대덕밸리캠퍼스 화학공학과) ;
  • 임지원 (한남대학교 대덕밸리캠퍼스 화학공학과)
  • Received : 2015.07.13
  • Accepted : 2015.08.24
  • Published : 2015.08.31
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Abstract

Poly(vinyl alcohol) (PVA) membranes cross-linked with sulfosuccinic acid (SSA) in which poly(4-styrene sulfonic acid-co-maleic acid) (PSSA_MA) was blended to endow more ion exchange capacity were prepared to measure the permselectivities of water-alcohol mixtures by pervaporation separation technique. The feed mixtures of binary aqueous methanol, ethanol and iso-propyl alcohol solution by 90 wt% alcohol portion were used. Typically, for PVA10/SSA9/PSSA_MA90 membrane, the flux of 202.6, 47.8, $20.2g/m^2hr$ for aqueous methanol, ethanol and iso-propyl alcohol solutions was shown while the best separation factors of 34.2, 291 and 991 were given by PVA10/SSA11/PSSA_MA80 membrane. More details are discussed in main text of this article.

물/알코올 계의 투과증발 실험을 수행하기 위해 친수성 고분자인 Poly(vinyl alcohol) (PVA)에 가교제인 Sulfosuccinic acid (SSA)와 이온교환능력을 부여하기 위하여 첨가한 Poly(4-styrene sulfonic acid-co-maleic acid) (PSSA_MA)로 막을 제조하였다. 공급원액으로는 메탄올, 에탄올, 이소프로필알코올과 물을 각각 90 : 10 비율로 혼합하여 사용하였다. PVA10/SSA9/PSSA_MA90의 막 조건에서의 메탄올, 에탄올, 이소프로필알코올의 투과도는 각각 202.6, 47.8, $20.2g/m^2hr$이었으며 메탄올 혼합액에서의 선택도가 가장 우수하게 나타났다. 또한 PVA10/SSA11/PSSA_MA80의 막 조건에서의 선택도는 각각 34.2, 291, 991로서 이소프로필알코올 혼합액에서 가장 좋은 결과를 나타내었다.

Keywords

References

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