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Título : Kinetics of the nopol synthesis by the Prins reaction over tin impregnated MCM-41 catalyst
Autor : Villa Holguín, Aída Luz
Correa Montes, Luis Fernando
Alarcón Durango, Edwin Alexis
metadata.dc.subject.*: Cinética
Síntesis de nopol
condensación
Método de velocidad de reacción inicial
Fecha de publicación : 2013
Editorial : Elsevier
Citación : Villa Holguín, A. L., Correa Montes, L. F., and Alarcón Durango, E. A. (2013). Kinetics of the nopol synthesis by the Prins reaction over tin impregnated MCM-41 catalyst. Chemical Engineering Journal, 215-216, 500-507. https://doi.org/10.1016/j.cej.2012.11.030
Resumen : ABSTRACT: The kinetics of the nopol synthesis by Prins condensation of b-pinene and paraformaldehyde over Sn-MCM-41 synthesized by impregnation was evaluated using the initial reaction rate method. The reaction rate equation obtained from a kinetic model based on the Langmuir–Hinshelwood formalism with the surface reaction of adsorbed reactants on catalytic sites of the same nature as the limiting step, gave a good prediction of the experimental data. The effect of temperature on the kinetics of nopol synthesis over Sn-MCM-41 obtained by impregnation was studied between 75 and 100 °C. The robustness analysis of the kinetic model showed that the surface reaction constant, k0 sr , should be about 0.185 mol g-1 h-1 at 90 °C, while the ratio between the adsorption equilibrium constant of b-pinene, KA, and formaldehyde species, KB, is approximately 1.2:1 (KA:KB). The obtained apparent activation energy and pre-exponential factor are 78 kJ/mol and 2.3 * 1010 mol g-1 h-1, respectively, but compensation effect analysis using both experimental and simulated data gave strong evidence of the dependency in temperature of the apparent Arrhenius parameters.
ISSN : 1385-8947
metadata.dc.identifier.doi: 10.1016/j.cej.2012.11.030
Aparece en las colecciones: CIA (Centro de Investigaciones Ambientales y de Ingeniería)

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