• H.S. Goswami

Vapour phase catalytic oxidation of toluene over perovskites Viz., LaCoO3/Al2O3 and LaCrO3/Al2O3 has been studied. The characterization of the catalyst was carried out using technique Viz. I.R., Surface area, Packing density. Surface acidity, Surface basicity. The surface area measurements in the temperature range 350ºC to 600ºC. The maximum surface area & maximum activity was observed at 450ºC. The heterogeneous catalytic vapour phase oxidation of toluene give benzaldehyde, benzoic acid, maleic acid and CO2 as products over LaCoO3/Al2O3 and LaCrO3/Al2O3 as catalyst. The LaCoO3 supported on Al2O3 has been found to be the most active and selective catalyst giving 84.0% selectivity for benzaldehyde at 450⁰C with surface area 78.9 m2/g. The overall Kinetic analysis indicate that the oxidation of Toluene to benzaldehyde is first order. The order of catalytic reactivity is LaCoO3/Al2O3 > LaCrO3/Al2O3.The selectivity and activity of catalyst is correlated to surface area values.

Oxidation, Toluene, Catalysis, Supported, Surface area, Benzaldehyde

"Oxidation of Toluene over LaCoO3/Al2O3 and LaCrO3/Al2O3 Perovskite catalysts. A comparative study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.1, Issue 7, page no.286-288, December-2014, Available :http://www.jetir.org/papers/JETIR1701882.pdf

"Oxidation of Toluene over LaCoO3/Al2O3 and LaCrO3/Al2O3 Perovskite catalysts. A comparative study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.1, Issue 7, page no. pp286-288, December-2014, Available at : http://www.jetir.org/papers/JETIR1701882.pdf