Please use this identifier to cite or link to this item: http://www.repositorio.ufc.br/handle/riufc/54836
Title in Portuguese: Produção de ácidos graxos assistida por ultra-som para a produção de biodiesel
Author: Lima, Larissa Pinto de
Costa, Enio
Santos, Francisco Francielle Pinheiro dos
Rodrigues, Sueli
Fernandes, Fabiano André Narciso
Keywords: Biodiesel - produção
Ácidos graxos -produção
Biocombustíveis
Hidrólise ácida
Saponificação
Esterificação
Issue Date: 2009
Citation: LIMA, Larissa Pinto; COSTA, Enio; SANTOS, Francisco Francielle Pinheiro dos; RODRIGUES, Sueli; FERNANDES, Fabiano André Narciso. Produção de ácidos graxos assistida por ultra-som para a produção de biodiesel. In: CONGRESSO BRASILEIRO DE PESQUISA E DESENVOLVIMENTO EM PETRÓLEO E GÁS, 5º., 18 a 22 out. 2009, Fortaleza, Ceará, Brasil. Anais[…] Fortaleza, Ceará, 2009.
Abstract: Free-fatty acids were produced from residual soybean oil by saponification reaction followed by hydrolysis assisted by ultrasound. Response surface methodology was applied to evaluate the effects of the operating conditions: molar ratio of ethanol to oil, KOH concentration and temperature on the production of free fatty acid. A maximum conversion of 97.3% was obtained applying 0.3% of KOH and 3:1 molar ratio of ethanol and oil. The effect of temperature was not statistically significant. A comparative study was carried out between the traditional reflux technique and the ultrasound technique. The results showed a significant difference between the techniques, where the ultrasound conversion was 39.2% higher than the reaction carried out with the reflux technique. The free-fatty acids production applying ultrasound has produced high acidity products with the advantage of the use of low value raw materials.
URI: http://www.repositorio.ufc.br/handle/riufc/54836
metadata.dc.type: Artigo de Evento
Appears in Collections:DEQ - Trabalhos apresentados em eventos

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