Kinetics of the sunflower oil ethanolysis using CaO as catalyst | Zendy

Ana V. Veličković | Zendy; Jelena M. Avramović | Zendy; Olivera S. Stamenković | Zendy; Vlada B. Veljković | Zendy

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Kinetics of the sunflower oil ethanolysis using CaO as catalyst

Author(s) -

Ana V. Veličković,

Jelena M. Avramović,

Olivera S. Stamenković,

Vlada B. Veljković

Publication year - 2016

Publication title -

chemical industry and chemical engineering quarterly

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.189

H-Index - 26

eISSN - 2217-7434

pISSN - 1451-9372

DOI - 10.2298/ciceq160106003v

Subject(s) - arrhenius equation , catalysis , activation energy , reaction rate constant , sunflower oil , chemistry , kinetics , order of reaction , kinetic energy , ethanol , calcium oxide , thermodynamics , reaction rate , sunflower , organic chemistry , mathematics , biochemistry , physics , quantum mechanics , combinatorics

The ethanolysis of sunflower oil catalyzed by calcium oxide was studied in wider ranges of the reaction conditions: temperature 65-75°C, ethanol-to-oil molar ratio 6:1-18:1 and catalyst loading 10-20% in order to determine the reaction kinetics. The proposed kinetic model of the sunflower oil ethanolysis included the changing and first-order reaction mechanism with respect to triacylglycerols and fatty acid ethyl esters. The kinetic parameters were determined and correlated with the process variables. The Arrhenius equation could be applied to the reaction rate constant with the activation energy of 94.0 kJ/mol. The proposed kinetic model showed a good agreement with the experimental data with the mean relative percentage deviation of ±13% (based on 256 data points). [Projekat Ministarstva nauke Republike Srbije, br. III 45001

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