Production of biodiesel from winery waste: extraction, refining and transesterification of grape seed oil.
In regions with a large wine production the usage of their natural waste to make biodiesel can result an interesting alternative. In this work, different methods of extraction, refining and transesterification of grape seed oil were assayed. Two techniques of oil extraction were compared: solvent extraction and pressing. Two conventional transesterifications of the refined oil were carried out using methanol and bioethanol, being the methyl and ethyl ester contents higher than 97 wt.%. Finally, several in situ transesterifications were done. In situ transesterification did not reach either the oil yield extraction or the alkyl ester contents but the obtained biodiesel had better oxidation stability in comparison with the conventional process.
Fernández
Carmen María
CM
Departamento de Ingeniería Química, Instituto de Tecnologías Química y Medioambiental, Universidad de Castilla-La Mancha, Avd. Camilo José Cela s/n, 13071 Ciudad Real, Spain.
Ramos
María Jesús
MJ
Pérez
Angel
A
Rodríguez
Juan Francisco
JF
D056804:Biofuels / Q000032:analysis*; D004951:Esterification; D056604:Grape Seed Extract / Q000737:chemistry* / Q000302:isolation & purification*; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification*; D052616:Solid Phase Extraction / Q000379:methods
D056804:Biofuels; D056604:Grape Seed Extract; D010938:Plant Oils