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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Main Authors: Alexandre Gustavo Soares do Prado, Francisco Dantas Filho, Paulo Anselmo Ziani Suarez, Elaine Alves Faria, Ellen Pozzebom, Romulo Davi Albuquerque Andrade
Format: Article
Language:English
Published: Universidade Estadual de Maringá 2012-04-01
Series:Acta Scientiarum: Technology
Subjects:
Online Access:http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/download/12797/pdf
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spelling 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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