Navegando por Autor "Santos, J. R. J."
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Artigo Themo-oxidative stability ald cold flow properties of babassu biodiesel by PDSC ans TMDSC techniques(Springer, 2009-04-27) Bicudo, Tatiana de Campos; Santos, N. A.; Santos, J. R. J.; Sinfrônio, F. S. M.; Santos, I. M. G.; Antoniosi Filho, N. R.; Fernandes Jr, V. J.; Souza, A. G.The babassu (Orbignya PhalerataMart.) biodiesel has lauric esters as main constituents, resulting in high oxidative stability and low cloud and freezing points. In order to reduce these side effects, the saturated ethyl esters content was reduced by means of winterization process. The TMDSC and PDSC techniques were used to verify the thermal and oxidative stabilities of the ethyl babassu biodiesel. During the heating stage, the winterized solid phase of ethyl esters presented an endothermic transition associated to the solidification process. This behavior was not observed for the liquid winterized FAEE, confirming the efficiency of the winterization process