Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Ionic Liquid based Carbon Dioxide Separation Membrane

이온성 액체를 이용한 이산화탄소 분리막

  • Park, Jung Hyeok (Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University) ;
  • Patel, Rajkumar (Energy and Environmental Science and Engineering (EESE), Integrated Science and Engineering Division (ISED), Underwood International College, Yonsei University)
  • 박정혁 (연세대학교 언더우드국제대학 에너지환경과학공학과(EESE) 융합과학공학과(ISED)) ;
  • 라즈쿠마 파텔 (연세대학교 언더우드국제대학 에너지환경과학공학과(EESE) 융합과학공학과(ISED))
  • Received : 2020.06.03
  • Accepted : 2020.06.17
  • Published : 2020.06.30
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Abstract

Ionic Liquid (IL) in the category of low-temperature molten salts with organic cation and organic/inorganic anion has shown great potentiality in CO2 gas separation. CO2 gas separation from flue gas by IL based membrane has been widely researched in recent years to overcome climate change and global warming. Membranes based on free standing polyionic liquid (PIL), blend of ionic liquid and composite ionic liquid membranes are discussed in this review. Introducing different IL monomers and tuning microstructure of PIL membrane and composite of PIL-IL to enhance mechanical properties of membranes with good CO2 gas permeability and selectivity. Variations in cation and anions of monomer has great impact on the membrane gas separation performance.

유기 양이온과 유기/무기 음이온을 포함하고 있는 이온성 액체는 저온 용융 염의 종류이며 이산화탄소 분리 기능에 대한 잠재력을 갖고 있다. 지구 온난화와 기후 변화의 문제점을 극복하기 위해 이온성 액체를 기반으로 한 막을 개발하여 연도가스에서 이산화탄소를 걸러내는 연구가 활발히 진행되고 있다. 본 리뷰에서는 홀로 설 수 있는 중합 이온성 액체(PIL), 이온성 액체와 이온성 액체 복합 막의 혼합의 기술이 논의될 것이다. 새로운 이온성 액체의 모노머 도입, 그리고 중합 이온성 액체 막과 복합 막의 미세구조변형은 막의 기계적 특성을 향상시켜 가스투과율과 선택도를 크게 향상 시키는데 시용되어 왔다. 이온성 액체 모너머의 양이온과 음이온의 다양한 변형은 막의 가스 분리성에 큰 영향이 있다.

Keywords

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