Transesterification of sunflower oil produced by solvent extraction
N/D
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
Texto completo na Scopus
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