화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.569
발표분야 에너지/환경
제목 A Study on the V/TiO2 Catalysts of SO2 Deactivation by Using Mechanochemical Method
초록 The present study conducted reactivity experiments and several physiochemical property analyses using a fixed bed reactor fit for the actual process in order to improve durability against SO2 based on the properties of V/TiO2 catalyst by the high-energy metal dissolution method using ball milling. Although original catalysts were deactivated with time caused by ammonium sulfate salt formed, but V[2]/G-5 BM catalysts which has the extremely superior activity sustains the initial NOx removal efficiency without forming salts.Through XPS analysis, it was found that non-stoichiometric oxide of impregnated vanadium catalyst increases, and the increase of non-stoichiometric vanadium species can inhibit the production of ammonium sulfate salt by facilitating oxidation in SCR reaction.

Acknowledgements
This research was supported by a grant (code #10024184) from ‘Korea Institute of Industrial Technology Evaluation and Technology’ under ‘Ministry of Commerce, Industry and Energy, Korea
저자 이준엽1, 서필원2, 심규승3, 조성필1, 홍성호1, 홍성창4
소속 1한국전력기술(주), 2고려대, 3경기도보건환경(연), 4경기대
키워드 : mechanochemical method; non-stoichiometric; valence state; SCR; deactivation;
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