Title: Study on catalytic combustion of benzene over cerium based catalyst supported on cordierite
Abstract: A series of MnCeOx catalysts supported on cordierite honeycomb were prepared by an impregnation method with adding citric acid and using Mn(NO3)2 and Ce(NO3)2·6H2O.The effect of the molar ratio of Mn/Ce,calcinations temperature and time,the amount of citric acid on the catalytic properties for the complete oxidation of benzene were investigated.The orthogonal experiment was designed to get the best of technological parameter.These catalysts were characterized by XRD,H2-TPR and SEM techniques.The results show that the MnCeOx/Cord catalyst with Mn/Ce molar ratio of 19/21,calcining with 7h and Mn+ /(citric acid) molar ratio of 6 exhibits high catalytic performance.When the concentration of benzene was 15×10-3 and the gaseous hourly space velocity was 20000 h-1,the conversion of toluene was 99.1% at the reaction temperature of 300℃.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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