INCAPE 05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
artículos
Título:
Butia Yatay Coconut Oil: Process Development for Biodiesel Production and Kinetics of Esterification with Ethanol
Autor/es:
ZANUTTINI, M.S.; PISARELLO, M.L.; QUERINI, C.A.
Revista:
ENERGY CONSERVATION AND MANAGEMENT
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2014 vol. 85 p. 407 - 416
ISSN:
0196-8904
Resumen:
The aim of this work is to study biodiesel production using Butia Yatay coconut oil. This oil has acid valuesbetween 109 and 140 mg KOH/g, and phosphorus content in the order of 600 ppm. A three-step degummingpre-treatment of the raw material was adjusted in order to decrease the phosphorus content toapproximately 200 ppm. Afterwards, a two-step esterification followed by transesterification wasrequired in order to obtain a high-quality product.The esterification kinetics was studied including the simultaneous reactions that take place during theesterification of free fatty acids: autocatalysis, triacylglycerides hydrolysis, transesterification, and thereaction of sulphuric acid with the alcohol, being the most important ones. The kinetic parameters forthe esterification and autocatalysis reactions were also obtained, being different compared to sunfloweroil, due to the presence of short chain fatty acids. The kinetic constant for the esterification reactionrapidly decreases as a function of time, due to the consumption of the catalyst by the alkyl-sulphateformation reaction.
