Korean Chemical Engineering Research

  • 제56권1호
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  • Pages.125-132
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  • 2018
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  • 0304-128X(pISSN)
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  • 2233-9558(eISSN)
한국화학공학회 (The Korean Institute of Chemical Engineers)
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메탄으로부터 촉매와 유전체 장벽 방전 반응기를 활용한 C2 화합물의 합성

Synthesis of C2 Chemicals from Methane in a Dielectric Barrier Discharge (DBD) Plasma Bed

  • 오지환 (서강대학교 화공생명공학과) ;
  • 전종현 (서강대학교 화공생명공학과) ;
  • 정재권 (서강대학교 화공생명공학과) ;
  • 하경수 (서강대학교 화공생명공학과)
  • Oh, Ji-Hwan (Chemical Biomolecular Engineering, Sogang University) ;
  • Jeon, Jong Hyun (Chemical Biomolecular Engineering, Sogang University) ;
  • Jeoung, Jaekwon (Chemical Biomolecular Engineering, Sogang University) ;
  • Ha, Kyoung-Su (Chemical Biomolecular Engineering, Sogang University)
  • 투고 : 2017.06.11
  • 심사 : 2017.08.04
  • 발행 : 2018.02.01
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초록

유전체 장벽 방전 반응기에서 규칙적인 메조기공 갖는 촉매를 사용하여 플라즈마 에너지를 이용한 메탄의 직접전환반응 연구를 수행하였다. 촉매는 MgO/OMA (ordered mesoporous alumina), $MgO/{\gamma}-Al_2O_3$와 $MgO/{\alpha}-Al_2O_3$를 사용하여 반응하였다. Pulse 고전압을 이용한 플라즈마 반응기에서 촉매 MgO/OMA를 사용하였을 때 $C_2$ 화합물의 선택도는 67%로 최고의 성능을 나타내었다. 금속산화물 종류, 규칙적인 메조기공 구조, 알루미나의 상변화 그리고 전원공급방식에 따른 효과를 고려하여 반응기 성능 및 생성물 분포를 비교하였다. BET (Brunauer, Emmett, Teller), X 선 회절, 주사전자현미경, 열 무게 분석으로 촉매의 반응 전후의 특성을 분석하였다.

The direct synthesis of $C_2$ chemical directly from methane was studied by employing catalysts with ordered mesopores in a dielectric barrier discharge plasma reactor. The reaction was carried out using MgO/OMA (ordered mesoporous alumina), $MgO/{\gamma}-Al_2O_3$ and $MgO/{\alpha}-Al_2O_3$ as catalysts. When MgO/OMA was applied, it showed excellent performance in the plasma reactor using pulse-type power supply and the selectivity of $C_2$ chemicals was measured as 67%. The effects of metal oxide type, textural property of support, alumina phase and power supply type on catalytic performance were investigated especially in terms of $C_2$ chemical formation. BET (Brunauer, Emmett, Teller), X-ray diffraction, transmission electron microscope and thermogravimetric analysis were used to investigate the characterization of the catalyst before and after the reaction.

키워드

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