Vapor phase oxidation of ethanol over thorium molybdate catalyst

Srihari, V and Viswanath, DS (1976) Vapor phase oxidation of ethanol over thorium molybdate catalyst. In: Journal of Catalysis, 43 (1-3). pp. 43-52.

PDF mahesh.pdf - Published Version Restricted to Registered users only Download (641kB) | Request a copy

Abstract

Ethanol oxidation in the vapor phase was studied in an isothermal flow reactor using thorium molybdate catalyst in the temperature range 220–280 °C. Under these conditions the catalyst was highly selective to acetaldehyde formation. The rate data were well represented by a steady state two-stage redox model given by the equation: View the MathML source The parameters of the above model were estimated by linear and nonlinear least squares methods. In the case of nonlinear estimation the sum of the squares of residuals decreased. The activation energies and preexponential factors for the reduction and oxidation steps of the model, estimated by nonlinear least squares technique are: 9.47 kcal/mole, 9.31 g mole/ (sec) (g cat) (atm) and 9.85 kcal/mole, 0.17 g mole/(sec) (g cat) (atm)0.5, respectively. Oxidations of ethanol and methanol over thorium molybdate catalyst were compared under similar conditions.

Item Type:	Journal Article
Publication:	Journal of Catalysis
Publisher:	Elservier sciecne
Additional Information:	Copyright of this article belongs to Elsevier Publisher.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	21 Dec 2009 10:41
Last Modified:	17 Apr 2012 08:59
URI:	http://eprints.iisc.ac.in/id/eprint/24360

Actions (login required)

View Item