1Instituto de Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila 2121 Bloco 1D, Uberlândia, MG, Brazil, 38.400–902
2Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Rua Vinte-1600, Ituiutaba, MG, Brazil, 38.304–402
3Faculdade de Engenharia Química, Universidade Federal de Uberlândia, Av. João Naves de Ávila 2121 Bloco 1K, Uberlândia, MG, Brazil, 38.400–902
4Faculdade de Engenharia Química, Universidade Federal do Triângulo Mineiro, Av. Frei Paulino, 30, Uberaba, MG, Brazil, 38.0125–180
*Corresponding author: Reinaldo Ruggiero: Phone: +55(34) 3239–4434, +55(34) 32394385: E-mail: reinaldo@ufu.br
Online published on 17 July, 2017.
This paper presents the results obtained by the transesterification of oil extracted from the baru (Dipteryx alata Vog.) seed using a central composite design and response surface methodology. The studied variables were: temperature of the reaction system, catalyst concentration and molar ratio alcohol/oil. The reactions were monitored in a reactor equipped with a mechanical stirring working at 700 rpm, in a time period of 50 min, by thin-layer chromatography. The results revealed that the three chosen variables exert significant influence on the reaction and their effects were quantified. The best result for the yield of biodiesel was obtained when the values of the variables temperature, catalyst concentration and molar ratio alcohol:oil were 45°C, 1.7% and 8:1, respectively. The yields of biodiesel were considered fully satisfactory for its production, considering that the reaction was performed with the use of crude oil extracted from baru seed.
Biodiesel, baru (Dipteryx alataVog.), transesterification, response surface, central composition planning
