Comparative Study of Various Preparation Methods of CuO–CeO2 Catalysts for Oxidation of n–Hexane and iso–Octane

A. Mishra (Banaras Hindu University, Varanasi 221005, Uttar Pradesh)
B. D. Tripathi (Banaras Hindu University, Varanasi 221005, Uttar Pradesh)
A. K. Rai (Banaras Hindu University, Varanasi 221005, Uttar Pradesh)
R. Prasad (Banaras Hindu University, Varanasi 221005, Uttar Pradesh)

Bulletin of Chemical Reaction Engineering & Catalysis
2013: BCREC Volume 7 Issue 3 Year 2013 (March 2013)

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 0C and 340 0C respectively due to the larger surface area of the catalysts which increases the specific rate of reaction. © 2013 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)