Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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The Etherification of 2-Naphthol over Mesoporous Solid Acid Catalysts

메조 세공의 고체산 촉매를 이용한 2-나프톨의 에테르화 반응

  • Kim, Young Jin (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Bhatt, Sharad Durgashanker (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Yoon, Songhun (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Kim, Hee Young (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology) ;
  • Lee, Yongtaek (Department of Chemical Engineering, Chungnam National University) ;
  • Lee, Chul Wee (Advanced Chemical Technology Division, Korea Research Institute of Chemical Technology)
  • 김영진 (한국화학연구원 신화학연구단) ;
  • ;
  • 윤성훈 (한국화학연구원 신화학연구단) ;
  • 김희영 (한국화학연구원 신화학연구단) ;
  • 이용택 (충남대학교 화학공학과) ;
  • 이철위 (한국화학연구원 신화학연구단)
  • Received : 2007.10.12
  • Accepted : 2007.10.28
  • Published : 2008.04.30
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Abstract

The etherification of 2-naphthol with ethanol has been carried out over various solid acid catalysts. CNS, CNSWS, SCMS, MCF, and SBA-15 with and without sulfonic acid were used in this study as solid acid catalysts. The conversion of 2-naphthol and the selectivity of 2-naphthyl ethyl ether were obtained at reaction temperature = $180^{\circ}C$, $LHSV=1h^{-1}$, ethanol/2-naphthol molar ratio = 20 using a fixed-bed down flow reactor. The conversion of 2-naphthol and the selectivity of 2-naphthyl ethyl ether over silica group catalysts were higher than them over carbon group catalysts. The conversion of 2-naphthol was 70-90% and the selectivity of 2-naphthyl ethyl ether was more than 90% over silica group solid acid catalysts. It was performed XRD, SEM, TEM, and $NH_3-TPD$ to characterize solid acid catalysts.

여러 가지 고체산 촉매를 이용하여 2-naphthol과 에탄올의 에테르화 반응을 연구하였다. 본 연구에서 촉매는 CNS, CNSWS, SCMS, MCF, SBA-15와 이 촉매에 sulfonic acid를 붙인 $CNS-SO_3H$, $CNSWS-SO_3H$, $SCMS-SO_3H$, $MCF-SO_3H$, $SBA-15-SO_3H$를 사용하였다. 반응온도 $180^{\circ}C$, $LHSV=1h^{-1}$, 에탄올/2-naphthol의 몰 비 20인 조건으로 고정층 반응기에서 반응하여 각 촉매에서 2-naphthol의 전환율과 2-naphthyl ethyl ether의 선택도를 측정하였다. 2-naphthol의 전환율과 2-naphthyl ethyl ether의 선택도는 carbon 계열의 고체산 촉매에서 보다 silica 계열의 고체산 촉매에서 더 높게 나타났다. silica 계열의 고체산 촉매에서 2-naphthol의 전환율은 70~90%, 2-naphthyl ethyl ether의 선택도는 90% 이상으로 나타났다. 촉매의 특성을 관찰하기 위해 XRD, SEM, TEM, $NH_3-TPD$를 수행하였다.

Keywords

Acknowledgement

Supported by : 한국과학재단

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