Crambe abyssinica oil as an oxidative stability additive for soybean biodiesel

Willian Tenfen Wazilewski; Helton Aparecido Rosa; Gustavo Veloso; Reinaldo Aparecido Bariccatti

Resumo

The quality of the biodiesel is of most importance for the success in the marketing of this fuel. Among the qualitative parameters there is the kinematic viscosity that can be affected due to the degradation of biofuel, which could be estimated as its stability. Such degradation occurs on account of the weather changing and also because of some catalytic agents. Because of that the stability to oxidation was denominated as a factor which relates the resistance level of the product to the different oxidizing agents. The present work aimed to study the inductive period of soybean biodiesel and its blends with crambe biodiesel. AMetrhom® Rancimat was used for getting data for this study. From the results it was observed that using crambe oil as an additive it could be viable for taking out the biodiesel producer dependency for chemistry industries for synthetic anti-oxidants. A 20% blend of crambe oil at the soybean biodiesel could elevate about 33,3% of the original biodiesel induction period with a low variation coefficient (1.52%).