Optimization of <Emphasis Type="Italic">Brassica carinata</Emphasis> oil methanolysis for biodiesel production |
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Authors: | Email author" target="_blank">Gemma?VicenteEmail author Mercedes?Martínez José?Aracil |
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Affiliation: | (1) Department of Chemical Engineering, Faculty of Chemistry, Complutense University, 28040 Madrid, Spain;(2) Department of Chemical and Environmental Technology, Escuela Superior de Ciencias Experimentales y Tecnología (ESCET), Rey Juan Carlos University, 28933 Móstoles, Madrid, Spain |
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Abstract: | Synthesis of FAME from Brassica carinata oil to produce biodiesel was accomplished using potassium hydroxide as the catalyst. A factorial design of experiments and
a central composite design were used. The variables chosen were: type of Brassica carinata oil, initial catalyst concentration, and temperature; and the responses were FAME purity and yield. The type of B. carinata oil included high-erucic B. carinata (HEBC) and lowerucic B. carinata (LEBC) varieties. The results show that the type of B. carinata oil does not affect the purity and yield of FAME. However, HEBC oil is more suitable for biodiesel production because its
iodine value is lower and within the European Union specifications. The initial catalyst concentration is the most important
factor, having a positive influence on FAME purity but a negative effect on FAME yield. The temperature has a significant
positive effect on FAME purity and a significant negative influence on FAME yield. Second-order models were obtained to predict
FAME purity and yield as a function of catalyst concentration and temperature for HEBC oil methanolysis. The best conditions
for this process are 25°C, and 1.2–1.5 wt% for the catalyst concentration. |
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Keywords: | Biodiesel Brassica carinata oil factorial design FAME methanolysis transesterification |
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