Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Separation of Propylene/Propane using SPEEK-Ag+ Facilitated Transport Membrane

SPEEK-Ag+ 촉진 수송막을 이용한 Propylene/Propane의 분리

  • Lee, Jung-In (Energy & Environment & Process Technology Division, Korea Institute of Science and Technology) ;
  • Jang, Seong-Cheol (Energy & Environment & Process Technology Division, Korea Institute of Science and Technology) ;
  • Choi, Do-Young (Energy & Environment & Process Technology Division, Korea Institute of Science and Technology) ;
  • Bang, Jun-Ha (Department of Chemical and Biological Engineering, Korea University) ;
  • Kim, Hoon-Sik (Department of Chemistry, Kyung Hee University) ;
  • Choi, Dae-Ki (Energy & Environment & Process Technology Division, Korea Institute of Science and Technology)
  • 이정인 (한국과학기술연구원 환경공정연구부) ;
  • 장성철 (한국과학기술연구원 환경공정연구부) ;
  • 최도영 (한국과학기술연구원 환경공정연구부) ;
  • 방준하 (고려대학교 화공생명공학과) ;
  • 김훈식 (경희대학교 화학과) ;
  • 최대기 (한국과학기술연구원 환경공정연구부)
  • Received : 2007.09.14
  • Accepted : 2007.10.18
  • Published : 2008.02.28
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Abstract

In this study, the facilitated transport membranes, poly (ether ether)ketone (SPEEK)-Ag salts layers on top of polycarbonate supports membrane, were prepared and tested for the separation of propylene/propane. SPEEK was synthesised using PEEK and $H_2SO_4$. Experiments were porformed at room temperature and feed pressures up to 30 psig. The SPEEK-Ag salt membranes showed good selectivity for propane over propylene. With increasing the concentration of SPEEK in MeOH, 5~20 wt%, the thickness of SPEEK membrane on the polycarbonate increased. The selectivity and permeance of SPEKK-Ag membrane for propylene/propane were changed by membrane thickness and concentration of Ag salts.

본 연구에서 매개체로 $Ag^+$ 이온을 사용하고 polycarbonate 지지체 위에 sulfonated poly(ether ether ketone)(SPEEK) 코팅하여 촉진 수송 분리막을 제조하여 propylene/propane의 분리에서 막의 두께와 은의 농도의 영향을 알아보았다. PEEK와 황산을 이용하여 SPEEK를 합성하고 MeOH에 녹여 농도별(5, 10, 15, 20 wt%)로 polycarbonate 지지체 위에 코팅하였고, 은 수용액에 함침 시킨 후 어두운 곳에서 건조하여 사용하였다. 실험 결과, 막의 두께 증가하면 선택도는 증가하였고 투과 성능은 감소하였다. 또한 은의 농도가 증가할수록 선택도는 증가 하였으나, 투과 성능을 크게 변화 시키지는 않았다.

Keywords

Acknowledgement

Supported by : 이산화탄소 저감 및 처리 기술개발 사업단

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