화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.21, No.1, 126-131, January, 2004
DOI10.1007/BF02705390  Export Citation
The Study on the Selective Oxidation of H2S over the Mixture Zeolite NaX-WO3 Catalysts
Jun-Hyun Pi, Dong-Hwal Lee, Jong-Dae Lee, Jin Hyuk Jun, No-Kuk Park, Si-Ok Ryu, and Tae-Jin Lee†
  • National Research Laboratory, School of Chemical Engineering & Technology, Yeungnam University, Gyeongsan 712-749, Korea
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At temperatures lower than 250 ℃ the deactivation of zeolite NaX catalyst occurred in the presence of water vapor. The gradual accumulation of water vapor on the surface of catalyst could cause deactivation of catalyst. The zeolite NaX-WO3 catalysts were prepared to study a method preventing deactivation of catalysts from the adsorption of water vapor. The zeolite NaX-WO3 (9 : 1) with a low content of WO3 showed the highest conversion of H2S. It is believed that the addition of WO3 caused either a decrease of the strong adsorption of water vapor on the zeolite NaX or an increase of the reducibility of WO3 by some interactions between zeolite NaX and WO3.
Keywords:Elemental Sulfur;Hydrogen Sulfide;Selective Oxidation;WO3;Zeolite NaX
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