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Kinetic and diffusion study of acid-catalyzed liquid-phase alkyl formates hydrolysis
Umeå University, Faculty of Science and Technology, Department of Chemistry. (Technical Chemistry, Chemical–Biological Centre)
2012 (English)In: Chemical Engineering Science, ISSN 0009-2509, E-ISSN 1873-4405, Vol. 69, no 1, 201-210 p.Article in journal (Refereed) Published
Abstract [en]

Alkyl formates are typically hydrolyzed with the aid of homogeneous catalysts, but heterogeneous catalysts provide a promising pathway for the process. The hydrolysis of alkyl formates by a solid acid catalyst, ion-exchange resin was accomplished in a batch reactor, a stirred autoclave operating isothermally at 60 degrees C and 90 degrees C with a constant initial water-to-ester molar ratio. A mathematical model, which incorporates the particle size distribution of the solid catalyst, was developed to study the kinetics and internal mass transfer effects in the porous particles and it was able to predict the concentrations in the bulk phase and inside the catalyst particles. A combined reaction-diffusion model is necessary to describe the behavior of the system. The model was able to predict well the experimental results. (C) 2011 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2012. Vol. 69, no 1, 201-210 p.
Keyword [en]
Alkyl formate hydrolysis, Kinetics, Particle size distribution, Mathematical model, Internal diffusion limitation, Amberlite IR-120
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:umu:diva-52012DOI: 10.1016/j.ces.2011.10.028ISI: 000298325800017OAI: oai:DiVA.org:umu-52012DiVA: diva2:506726
Available from: 2012-02-29 Created: 2012-02-08 Last updated: 2017-12-07Bibliographically approved

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Mikkola, Jyri-Pekka

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