期刊
HEMIJSKA INDUSTRIJA
卷 68, 期 2, 页码 149-159出版社
ASSOC CHEMICAL ENGINEERS SERBIA
DOI: 10.2298/HEMIND130118037A
关键词
optimisation technique; genetic algorithm; short-cut method; kinetic parameters; high pressure process
资金
- Ministry of Education and Science of the Republic of Serbia [III-45019]
This paper represents a methodology for kinetic parameter estimation based on standard optimization methods. The parameter estimation procedure is applied to the example of modelling of non-catalytic transesterification reaction, based on laboratory experiments performed under elevated pressure. The kinetic model employed in this study consists of three consecutive and parallel reversible reactions of the second order, with six kinetic constants. The influence of the mass transfer effects was considered as well. The best results were obtained by Genetic Algorithm method. The application of this method resulted in kinetic parameters with improved accuracy in predicting concentrations of important reaction intermediates, i.e., diglycerides and monoglycerides. Activation energies of kinetic parameters obtained by the Genetic Algorithm method are in line with theoretical values determined by molecular orbital calculations.
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