Produção de biodiesel etílico de óleos e gorduras de fritura residuais via esterificação ácida seguida de transesterificação alcalina
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2017-12
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Resumo
The use of ethanol is fundamental to increase the environmental sustainability of biodiesel, as well as
the reuse of residual frying oils (ORF). The present manuscript aimed to optimize the production of
ethylic biodiesel from ORF, using a chemically optimized conjugated process of acid esterification
followed by an alkaline transesterification, through experimental planning 2³. For the esterification the
yield was obtained by the reduction of the acid number and for the transesterification by the percentage
of the total ester content, confirmed by the analysis of mono-, di- and triacylglycerides. The optimum
ORF ethyl biodiesel production was obtained using the esterification process with 2.5% H2SO4
and ethanol: ORF molar ratio of 11:1 for 4 h, transesterification with 1.5% of the concentration of KOH
and molar ratio Ethanol: grease content of 13:1 for 4 h, resulting in a biodidesel with similar quality to
commercial ones.
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Produção de biodiesel, Quimiometria, Planejamento fatorial, Biodiesel production, Quimiometry, Factorial design
Citação
CAMARGO, Rubia de Pina Luchetti et al. Produção de biodiesel etílico de óleos e gorduras de fritura residuais via esterificação ácida seguida de transesterificação alcalina. Fronteiras: Journal of Social, Technological and Environmental Science, Anápolis, v. 6, n. 3, p. 19-44, set./dez. 2017. DOI: 10.21664/2238-8869.2017v6i3.p19-44. Disponível em: https://periodicos.unievangelica.edu.br/index.php/fronteiras/article/view/2728. Acesso em: 26 abr. 2024.