Use of heterogeneous catalysts in methylic biodiesel production induced by microwave irradiation
AUTOR(ES)
Dall'Oglio, Evandro L., Sousa Jr, Paulo T. de, Oliveira, Pedro Tiago de Jesus, Vasconcelos, Leonardo Gomes de, Parizotto, Carlos Adriano, Kuhnen, Carlos Alberto
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2014-06
RESUMO
The effect of different heterogeneous catalysts on the microwave-assisted transesterification of sunflower oil for the production of methylic biodiesel in a monomode microwave reactor is described. The experiments were carried out at 70 ºC with a 16:1 methanolsunflower oil molar ratio and different heterogeneous basic and acidic catalysts. The results showed that the microwave-heated reactions occur up to four times faster than those carried out with conventional heating. The reactions were performed with 24 catalysts; pure calcium oxide (CaO) and potassium carbonate, either pure or supported by alumina (K2CO3/Al2O3), were the most efficient catalysts.
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