| Título: |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil - doi: 10.4025/actascitechnol.v34i2.12797 |
| Autores: |
Albuquerque Andrade, Rômulo Davi; Instituto Federal de Educação Tecnológica de Rio Verde Pozzebom, Ellen; Instituto Federal de Educação Tecnológica de Rio Verde Faria, Elaine Alves; Instituto Federal de Educação Tecnológica de Rio Verde Dantas Filho, Francisco; Universidade de Brasília Suarez, Paulo Anselmo Ziani; Universidade de Brasília Prado, Alexandre Gustavo Soares do; Universidade de Brasília |
| Fecha: | 2012-03-07 |
| Publicador: | Acta Scientiarum. Techonology |
| Fuente: |
 |
| Tipo: |
Transesterification |
| Tema: |
1.06.03.08-5 transesterification; vegetable oils; thermogravimetric evaluation Termodinamica quimica |
| Descripción: |
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. |
| Idioma: | Inglés |