Pervaporation Separation of Water-Ethanol Mixture Using Crosslinked PVA/PSSA_MA/TEOS Hybrid Membranes

PVA/PSSA_MA/TEOS 막을 이용한 물/에탄올 계의 투과증발 분리

  • Rhim, Ji-Won (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Lee, Byung-Seong (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Kim, Dae-Hoon (College of Life Science & Nano Technology, Department of Chemical Engineering & Nano-Bio Technology, Hannam University) ;
  • Yoon, Seok-Won (Korea Electric Power Research Institute) ;
  • Im, Hyeon-Soo (Korea Electric Power Research Institute) ;
  • Moon, Go-Young (Industrial Materials, Research Park, LG Chem. Ltd., Science Town) ;
  • Nam, Sang-Yong (School of Materials Science and Engineering, Engineering Research Institute, i-Cube Center, Gyeongsang National University)
  • 임지원 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 이병성 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 김대훈 (한남대학교 대덕밸리캠퍼스 생명.나노과학대학 나노생명화학공학과) ;
  • 윤석원 (한국전력공사 전력연구원) ;
  • 임현수 (한국전력공사 전력연구원) ;
  • 문고영 (LG화학기술연구원 산업재연구소) ;
  • 남상용 (경상대학교 나노신소재공학부, 공학연구원, 아이큐브사업단)
  • Published : 2008.03.30

Abstract

Pervaporation separation for water-ethanol mixtures has been carried out using crosslinked poly(vinyl alcohol) (PVA) membranes with poly(styrene sulfonic acid-co-maleic acid) (PSSA_MA) and at which tetraethylorthosilicate (TEOS) was introduced. The concentration of PSSA_MA was fixed 7 wt% over PVA and the TEOS contents, 3, 5, and 7 wt%, were varied against PVA. The composition of the feed mixtures were 10, 20, 30 and 50 wt% of water in it. PVA/PSSA_MA/5 wt% TEOS membrane showed the separation factor, 1730 and the permeability, $16.3g/m^2{\cdot}hr$ for water : ethanol = 10 : 90 at $50^{\circ}C$.

본 연구는 poly(vinyl alcohol) (PVA)와 가교제 poly(styrene sulfonic acid-co-maleic acid) (PSSA_MA)을 이용하여 제조된 막에 tetraethylorthosilicate (TEOS)를 도입하여 물-에탄올 계에 대한 투과증발 실험을 다양한 가교온도별($120{\sim}140^{\circ}C$), 조업온도별($25{\sim}70^{\circ}C$)로 수행하였다. TEOS의 함량은 PVA 대비 3, 5, 7 wt%를 사용하였으며, 원액의 조성은 무게비로 물 10, 20, 30 및 50%에 대하여 조사하였다. 물 에탄올 = 10 : 90 조성, 조업온도 $50^{\circ}C$에서 선택도 1730과 투과도 $16.3g/m^2{\cdot}hr$를 PVA/7 wt% PSSA_MA/5 wt% TEOS 막이 보여 주었다.

Keywords

References

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