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Bulletin of Chemical Reaction Engineering and Catalysis, Volume 7, Issue 3, 2013, pp. 172-178

Comparative study of various preparation methods of CuO-CeO2 catalysts for oxidation of n-hexane and iso-octane

Abstract :

The complete oxidation of n-Hexane and iso-Octane was studied individually in a fixed bed tubular flow reactor over CuO-CeO2 catalysts synthesized via four different methods namely urea-nitrate combustion method, urea gelation/co-precipitation method, citric acid sol-gel method and co-impregnation method. Laser diffraction was employed in catalysts characterization. The results obtained from the complete conversion of n-Hexane and iso-Octane revealed that the CuO-CeO2 catalysts prepared by urea-nitrate combustion method (UNC) showed the best performance than the catalysts prepared by other methods used in the present investigation. CuO-CeO2 catalysts prepared by UNC method achieve total n-Hexane and iso-Octane conversion to CO2 at lower temperatures of 280 °C and 340 °C respectively due to the larger surface area of the catalysts which increases the specific rate of reaction.

Keywords : Catalytic Oxidation,Copper-Ceria,Iso-Octane,N-Hexane,Urea-Nitrate Combustion
Subject Area : Catalysis Process Chemistry and Technology

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