화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.9, No.5, 590-594, September, 2003
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Catalytic Oxidation of VOC Mixtures in Supercritical Fluid Media
Seung-Bum Lee, and In-Kwon Hong†
  • Department of Chemical Engineering, Dankook University, Seoul 140-714, Korea
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The objective of the current study was to depict the conversion characteristics of a platinum catalyst for the deep oxidation of VOCs and their mixtures in supercritical fluid media. The catalytic oxidation of VOCs, including benzene, toluene and m-xylene, was studied on a 0.5% Pt/ γ -Al2O3 catalyst. The deep conversion of benzene in a mixture was significantly inhibited by the presence of other VOCs, yet the inhibiting effect decreased in the order of styrene > ethylbenzene > toluene. However, this inhibiting effect in supercritical carbon dioxide (SC-CO2) media was lower compared to that in a gas state. The amount of intermediates decreased as the deep conversion of VOCs increased. Therefore, the catalytic oxidation process in SC-CO2 media can be recommended as a control technology for VOC mixtures.
Keywords:supercritical fluid media;catalytic oxidation;VOCs mixture;inhibiting effect;supercritical carbon dioxide (SC-CO2)
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