Biodiesel Produced by Ethanolysis: Melting Profile, Densities, and Viscosities
2013
Basso, Rodrigo C. | Meirelles, Antônio J. A. | Batista, Eduardo A. C.
Little information on the density, viscosity, and melting profile are available regarding biodiesel produced by ethanolysis, although it presents the appeal of being a completely biorenewable fuel. In the present work, the densities, viscosities, and melting profiles of four biodiesels produced by ethanolysis are presented. The ethyl ester compositions of the biodiesels were associated with the behavior of these physical properties. Two methodologies for calculating density and viscosity were tested. Biodiesel from macauba pulp oil presented the highest melting point, whereas biodiesel from crambe and fodder radish oils presented the highest viscosities and densities, respectively. The average relative deviations between the calculated and experimental values ranged from 5.1 to 14.3% and from 7.1 to 12.6% using the Basso and Ceriani models for viscosity calculation, respectively, and less than 1.2% when using the predictive Halvorsen methodology and GCVOL for density calculation.
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