Repositório do Conhecimento Institucional do Centro Universitário FEI
 

Transesterification of sunflower oil produced by solvent extraction

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Tipo de produção

Artigo de evento

Data de publicação

2014-11-16

Periódico

Sustainable Engineering Forum 2014 - Core Programming Area at the 2014 AIChE Annual Meeting

Editor

Citações na Scopus

0

Autores

Maristhela Passoni de Araújo Marin
Luis Novazzi
DENARI, M. L.

Orientadores

Resumo

In this work, the leaching of oil from sunflower seeds using hexane was studied. The solution of oil / hexane was thereafter transesterified, with methanol and potassium hydroxide (KOH) as the catalyst, in a batch reactor, for 1 hour and with a constant temperature of 45 °C. It is important to point out that the extracted oil was not refined and was directly used on transesterification reactions. The hexane in the oil / hexane solution acted as a cosolvent and made the oil / methanol mixture forms a single-phase. Experimental results obtained in the transesterification reactions showed that the increase of methanol / oil mole ratio on reaction yield is negative, whereas the increase of catalyst concentration on reaction yield is positive. Reaction yields decreased 18.00% on average when the mole ratio methanol / oil was increased. When catalyst concentration was augmented, reaction yields increased 15.19%, on average. These results are statistically meaningful, since the standard deviation was equal to 0.48%. Moreover, an interaction between methanol / oil mole ratio and catalyst concentration on reaction yield was observed.

Citação

MARIN, M. P. A.; NOVAZZI, L.; DENARI, M. L. Transesterification of sunflower oil produced by solvent extraction. Sustainable Engineering Forum 2014 - Core Programming Area at the 2014 AIChE Annual Meeting, p. 558-562, nov. 2014.

Palavras-chave

Keywords

Biodiesel; Solvent extraction; Sunflower; Transesterification

Assuntos Scopus

Catalyst concentration; Constant temperature; Hexane solutions; Methanol mixtures; Reaction yields; Standard deviation; Sunflower; Transesterification reaction

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