Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti
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 fact...
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doaj-75ea7f690eee4278bdc400ecbe6780d82020-11-25T00:37:47ZengUniversidade Estadual de MaringáActa Scientiarum: Technology1807-86642012-04-01342243248Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buritiAlexandre Gustavo Soares do PradoFrancisco Dantas FilhoPaulo Anselmo Ziani SuarezElaine Alves FariaEllen PozzebomRomulo Davi Albuquerque AndradeBiodiesel 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 (≠G), enthalpy (≠H) and entropy (≠S) of activation were determined by using Coats–Redfern equation. The Ea, ≠H and ≠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.<br><br>O biodiesel foi obtido a partir de metanólise de óleo de buriti. O biodiesel foi adicionado ao diesel fóssil a fim de obter misturas de biodiesel/diesel. Análises térmica das misturas foram realizadas entre 30-600°C com uma taxa de aquecimento de 10ºC min.-1. Parâmetros cinéticos como a energia de ativação (Ea), fator pré-exponencial (A), energia livre de Gibbs (≠G), entalpia (≠H) e entropia de ativação (≠S) foram determinadas usando equação de Coats-Redfern. Os valores de Ea, ≠H and ≠G apresentaram aumento linear com a quantidade de biodiesel adicionado na mistura. O calor de combustão de misturas de biodiesel/diesel foi determinada, e foi observado que o calor de combustão diminuiu com a adição de biodiesel no diesel e nas misturas de biodiesel.http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/download/12797/pdftransesterificationvegetable oilsthermogravimetric evaluationtransesterificaçãoóleos vegetaisavaliação termogravimétrica |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Alexandre Gustavo Soares do Prado Francisco Dantas Filho Paulo Anselmo Ziani Suarez Elaine Alves Faria Ellen Pozzebom Romulo Davi Albuquerque Andrade |
spellingShingle |
Alexandre Gustavo Soares do Prado Francisco Dantas Filho Paulo Anselmo Ziani Suarez Elaine Alves Faria Ellen Pozzebom Romulo Davi Albuquerque Andrade Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti Acta Scientiarum: Technology transesterification vegetable oils thermogravimetric evaluation transesterificação óleos vegetais avaliação termogravimétrica |
author_facet |
Alexandre Gustavo Soares do Prado Francisco Dantas Filho Paulo Anselmo Ziani Suarez Elaine Alves Faria Ellen Pozzebom Romulo Davi Albuquerque Andrade |
author_sort |
Alexandre Gustavo Soares do Prado |
title |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
title_short |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
title_full |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
title_fullStr |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
title_full_unstemmed |
Thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=Comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
title_sort |
thermal behavior of diesel/biodiesel blends of biodiesel obtained from buriti oil=comportamento térmico de blendas de diesel/biodiesel de biodiesel obtido a partir do óleo de buriti |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum: Technology |
issn |
1807-8664 |
publishDate |
2012-04-01 |
description |
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 (≠G), enthalpy (≠H) and entropy (≠S) of activation were determined by using Coats–Redfern equation. The Ea, ≠H and ≠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.<br><br>O biodiesel foi obtido a partir de metanólise de óleo de buriti. O biodiesel foi adicionado ao diesel fóssil a fim de obter misturas de biodiesel/diesel. Análises térmica das misturas foram realizadas entre 30-600°C com uma taxa de aquecimento de 10ºC min.-1. Parâmetros cinéticos como a energia de ativação (Ea), fator pré-exponencial (A), energia livre de Gibbs (≠G), entalpia (≠H) e entropia de ativação (≠S) foram determinadas usando equação de Coats-Redfern. Os valores de Ea, ≠H and ≠G apresentaram aumento linear com a quantidade de biodiesel adicionado na mistura. O calor de combustão de misturas de biodiesel/diesel foi determinada, e foi observado que o calor de combustão diminuiu com a adição de biodiesel no diesel e nas misturas de biodiesel. |
topic |
transesterification vegetable oils thermogravimetric evaluation transesterificação óleos vegetais avaliação termogravimétrica |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/download/12797/pdf |
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