Comparisons of Reverse Osmosis and Pervaporation Membrane Processes. II. Experimental Interpretations.

역삼투와 투과 증발막 공정의 비교. II. 실험적 해석

  • Rhim, Ji-Won (Department of Chemical Engineering, Hannam University, Taejeon, Korea) ;
  • Bae, Seong-Youl (Department of Chemical Engineering, Hanyang University, Seoul, Korea) ;
  • Kimura, Shoji (Department of Chemical Engineering, University of Tokyo, Tokyo, Japan) ;
  • H (Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada)
  • Published : 1993.04.01

Abstract

Reverse osmosis(RO) and pervaporation(PV) membrane separation proceaes were compared with each other experimentally for the system of water-ethanol mixtures by using nylon 4 blended membranes. The separation effciencies of PV were better than those of RO as expected in previous paper covering the theoretical comparisons of both processes, however tbe permeabilities data showed erraerie results due to the membrane imperfections.

역삼투 및 투과 증발막 분리공정이 nylon 4 blended 막을 사용하여 물-에탄올 계에 대하여 실험적으로 비교되어졌다. 위 두 공저의 이론적 비교를 다루었던 전 논문과 마찬가지로 투과 증발 공정의 분리 효율이 역삼투 공저의 경우 보다 더 좋음을 알 수 있었다. 그러나 투과도 데이타는 막의 결함들로 인하여 엉뚱한 결과를 보였다.

Keywords

References

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