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Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/15657
Tipo: Artigo de Periódico
Título: Ultrasound-assisted synthesis of ethyl esters from soybean oil via homogeneous catalysis
Título(s) alternativo(s): Fuel Processing Technology
Autor(es): Brito, Jeane Quelle Alves
Silva, Creuza S.
Almeida, Jorge Santos de
Korn, Maria das Graças Andrade
Korn, Mauro
Teixeira, Leonardo Sena Gomes
Autor(es): Brito, Jeane Quelle Alves
Silva, Creuza S.
Almeida, Jorge Santos de
Korn, Maria das Graças Andrade
Korn, Mauro
Teixeira, Leonardo Sena Gomes
Abstract: A transesterification reaction of esters from soybean oil with ethanol assisted by low-frequency ultrasound (20 kHz) was performed in the presence of a potassium hydroxide catalyst. The effects of the following variables on the reaction performance were studied simultaneously through a full two-level factorial design 23: the concentration of the catalyst, the oil:ethanol molar ratio and the sonication time. The three investigated factors significantly affected the yield. Further experimentation was performed using a three-step reaction. An ethyl ester yield of approximately 98% was attained in the third step. The physicochemical properties of the products were compared with the technical limits of biodiesel, and the results suggest that the ultrasound-assisted ethanol transesterification reaction could be a viable and efficient method for the production of quality biodiesel from soybean oil.
Palavras-chave: Ethyl esters
Soybean oil
Biodiesel
Transesterification
Ethanolysis
Ultrasound-assisted reaction
Tipo de Acesso: Acesso Aberto
URI: http://repositorio.ufba.br/ri/handle/ri/15657
Data do documento: 2012
Aparece nas coleções:Artigo Publicado em Periódico (Química)

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