Kinetic parameter estimation and modelling of sucrose esters synthesis without solvent

In this paper, a kinetic model for the synthesis of the sucrose esters without solvent is developed. This synthesis is a heterogeneous reaction between the sucrose (solid) and the methyl palmitate (liquid) in the presence of a solid catalyst. We have established the kinetic model by steps, by first...

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Bibliographic Details
Published in:Chemical engineering science 2003, Vol.58 (2), p.367-376
Main Authors: Le Coënt, A.-L, Tayakout-Fayolle, M, Couenne, F, Briançon, S, Lieto, J, Fitremann-Gagnaire, J, Queneau, Y, Bouchu, A
Format: Article
Language:English
Subjects:
Catalysis
Catalytic reactions
Chemical and Process Engineering
Chemistry
Engineering Sciences
Exact sciences and technology
General and physical chemistry
Heterogeneous reaction
Kinetics
Modelling
Parameter identification
Sucrose esters
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:In this paper, a kinetic model for the synthesis of the sucrose esters without solvent is developed. This synthesis is a heterogeneous reaction between the sucrose (solid) and the methyl palmitate (liquid) in the presence of a solid catalyst. We have established the kinetic model by steps, by first considering a homogeneous model and then by taking into account the heterogeneity of the medium. Thus, we have assumed additional steps in the model corresponding to the activation of the solid sucrose by the catalyst and autocatalytic steps. This activation parameter is associated to the viscosity of the medium. As a consequence of these observations, the study of the sensibility and the accuracy of the parameters allowed us to simplify the model.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(02)00474-8