<b>Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil</b> - doi: 10.4025/actascitechnol.v34i2.12797

Authors

  • Rômulo Davi Albuquerque Andrade Instituto Federal de Educação Tecnológica de Rio Verde
  • Ellen Pozzebom Instituto Federal de Educação Tecnológica de Rio Verde
  • Elaine Alves Faria Instituto Federal de Educação Tecnológica de Rio Verde
  • Francisco Dantas Filho Universidade de Brasí­lia
  • Paulo Anselmo Ziani Suarez Universidade de Brasí­lia
  • Alexandre Gustavo Soares do Prado Universidade de Brasí­lia

DOI:

https://doi.org/10.4025/actascitechnol.v34i2.12797

Keywords:

transesterification, vegetable oils, thermogravimetric evaluation

Abstract

Biodiesel has been obtained from methanolysis of buriti oil. This biodiesel was added in fossil diesel in order to obtain diesel/biodiesel blends. Thermal analysis of blends were carried on 30-600oC range at rate of 10oC min.-1. Kinetic parameters such as activation energy (Ea), pre-exponential factor (A), Gibbs energy (Δ≠G), enthalpy (Δ≠H) and entropy (Δ≠S) of activation were determined by using Coats - Redfern equation. The Ea, Δ≠H and Δ≠G values presented a linear increase with biodiesel amount added in blends. The heat of combustion of diesel/biodiesel blends was determined, and it was observed that the heat of combustion decreased with the addition of biodiesel in diesel/biodiesel blends.

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Published

2011-11-09

How to Cite

Albuquerque Andrade, R. D., Pozzebom, E., Faria, E. A., Dantas Filho, F., Suarez, P. A. Z., & Prado, A. G. S. do. (2011). <b>Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil</b> - doi: 10.4025/actascitechnol.v34i2.12797. Acta Scientiarum. Technology, 34(2), 243–248. https://doi.org/10.4025/actascitechnol.v34i2.12797

Issue

Vol. 34 No. 2 (2012)

Section

Chemistry

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