Controlling mechanisms in the selective oxidation of toluene to benzaldehyde

Reddy, K. A. ; Doraiswamy, L. K. (1969) Controlling mechanisms in the selective oxidation of toluene to benzaldehyde Chemical Engineering Science, 24 (9). pp. 1415-1426. ISSN 0009-2509

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/000925...

Related URL: http://dx.doi.org/10.1016/0009-2509(69)85070-0

Abstract

Using a selective catalyst consisting of molybdenum oxide doped with tungstic oxide on alumina, the kinetics of the vapour-phase oxidation of toluene by air has been studied. The oxidation has been shown to proceed according to parallel model (toluene a benzaldehyde, and toluene → CO2). The overall oxidation reaction as well as the main reaction leading to benzaldehyde formation appear to exhibit a shift in the controlling regime from chemical to diffusional control around 475°C. This shift has been observed by non-linear estimation of the activation energy by a reparameterised form of the Arrhenius equation, but more experimental work at higher temperatures is required to confirm it.

Item Type:Article
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Deposited On:25 Nov 2010 13:50
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