Solid Acid Catalyzed Formation of ETBE(Ethyl tert-Butyl Ether) as an Octane Enhancer for Gasoline

고체산 촉매에 의한 가솔린 옥탄가 향상제인 ETBE (Ethyl tert-Butyl Ether) 합성

  • Park, Nam-Cook (Department of Material Chemical Eng., Chonnam National Univ.) ;
  • Kim, Jae-Seung (Department of Material Chemical Eng., Chonnam National Univ.) ;
  • Seo, Seong-Gyu (Department of Environmental Eng., Yosu National Fisheries Univ.) ;
  • Oh, Young-Yenl (Department of Material Chemical Eng., Chonnam National Univ.)
  • 박남국 (전남대학교 공과대학 물질화학공학과) ;
  • 김재승 (전남대학교 공과대학 물질화학공학과) ;
  • 서성규 (여수수산대학교 환경공학과) ;
  • 오영열 (전남대학교 공과대학 물질화학공학과)
  • Received : 1992.12.04
  • Accepted : 1993.01.16
  • Published : 1993.03.01

Abstract

Vapor-phase ETBE(ethyl tert-butyl ether) synthesis from TBA(tert-butyl alcohol) and ethanol was carried over solid acid catalysts such as heteropoly acids and proton type zeolites. Heteropoly acids were more active than proton type zeolites and $H_4SiW_{12}O_{40}$ catalyst showed about the same activity as Amberlyst-15 ion exchange resin catalyst used as an industrial catalyst in ETBE synthesis. The catalytic activity of transition metal exchanged heteropoly acids was greatly enhanced, because new acid site was generated with hydrogen reduction. This effect of hydrogen reduction was related to the reduction characteristics of catalysts and the order of reducibility was $Ag^+$>$Cu^{2+}$>$Fe^{2+}$.

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Acknowledgement

Supported by : 한국학술진흥재단