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REVISTA DE CHIMIE
Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie, Volume 65, Issue 1, pp. (2014)




Marian Andrei Researches Regarding Biodiesel Synthesis

Abstract:

This study dealt with the reaction kinetics of rapeseed oil transesterification with methyl alcohol, temperature, reactants molar ratio and catalyst amount influences upon triglycerides conversion. It was found out that increasing temperature and decreasing alcohol: oil ratio lowered triglycerides final conversion. Reaction rate is increasing with increasing temperature and catalyst amount. On the other hand increasing catalyst amount in reactants mixture also leads to a greater quantity of soap formation, detrimental to biodiesel yield. Kinetic experiments performed at 6:1 methanol : oil molar ratio, 50 and 60 0C reaction temperatures, 0.3% and 0.6% (by weight of reactants) catalyst loading, showed that during the first part, reaction evolved far from chemical equilibrium and on that time frame (0÷30 min) it is proved a second - order kinetics .Also in the same time, reaction rate constant doubles its value at a 10 0C temperature increase and is 21/2 times higher when catalyst load doubles. Key words : biodiesel, fatty acids methyl esters, transesterification, rapeseed oil

Issue: 2014 Volume 65, Number 1
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