Publication detail

Kinetics and mechanism of the butanolysis of rapeseed oil

Authors: Musil Martin | Skopal František | Hájek Martin | Vávra Aleš

Year: 2018

Type of publication: ostatní - článek ve sborníku

Name of source: 13th conference on sustainable development of energy, water and environment systems : book of abstracts

Publisher name: University of Zagreb

Place: Zagreb

Page from-to: 331-331

Titles:

Language	Name	Abstract	Keywords
eng	Kinetics and mechanism of the butanolysis of rapeseed oil	This work focuses on alkaline catalyzed transesterification of rapeseed oil with butanol. The reaction catalyzed by KOH is described by a model consisting of two sequences of consecutive competitive reactions. The first sequence expresses the butanolysis of rapeseed oil to butyl esters (biodiesel) whereas the second sequence describes the always present side reaction-saponification of glycerides and butyl esters by KOH. The proposed chemical model is described (after rational simplifications) by a system of differential kinetic equations which are solved numerically by two independent computing methods. The thus obtained theoretical kinetic and equilibrium results are compared numerically and/or graphically with the experimental parameters. The latter were obtained by the determination of the relevant components in the actual reaction mixture by analytical methods. According to the experimental results, the proposed reaction scheme is fulfilled with high probability. The optimal average rate constants and equilibrium constants of individual reaction steps of the discussed scheme are introduced. The limitations of the proposed reaction model are discussed.	transesterification; butanolysis; kinetics; mechanism; rapeseed oil

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