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Transesterification is the predominant process for converting vegetable oils into biodiesel. Nb2O5.nH2O is known to have strong surface acidity and it reportedly2 increases Lewis acid sites at temperatures higher than 500 oC, whereas Bronsted acid sites are more abundant at temperatures between 100 and 300 oC. This study, which is a continuation of other investigations of this research group3, aims to implement a methodology for preparing methylic biodiesel through transesterification process of cotton, coconut and flaxseed oils, monitoring heat treatment of Nb2O5.nH2O catalyst ratios and different proportions of catalyst mass/oil mass.

Studies on the synthesis of biodiesel catalyzed by Nb2O5.nH2O in transesterification reactions of cotton, coconut and flaxseed oils