Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production

In this study, research was performed on the interesterification reaction of cotton oil with methyl acetate, using potassium methoxide as catalyst, in the presence of ultrasonic waves. In order to obtain a better understanding of the process variables behavior, a response surface methodology was use...

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主要な著者: Medeiros, Aldo Miro de, Santos, Ênio Rafael de Medeiros, Azevedo, Saulo Henrique Gomes de, Jesus, Anderson Alles de, Oliveira, Humberto Neves Maia de, Sousa, Elisa Maria Bittencourt Dutra de
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言語:English
出版事項: Brazilian Society of Chemical Engineering
主題:
Esters
Gossypium hirsutum L.
Sonicator
Experimental Planning
Kinetics
オンライン･アクセス:https://repositorio.ufrn.br/handle/123456789/32681
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spelling ri-123456789-326812021-06-14T19:39:48Z Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production Medeiros, Aldo Miro de Santos, Ênio Rafael de Medeiros Azevedo, Saulo Henrique Gomes de Jesus, Anderson Alles de Oliveira, Humberto Neves Maia de Sousa, Elisa Maria Bittencourt Dutra de Esters Gossypium hirsutum L. Sonicator Experimental Planning Kinetics In this study, research was performed on the interesterification reaction of cotton oil with methyl acetate, using potassium methoxide as catalyst, in the presence of ultrasonic waves. In order to obtain a better understanding of the process variables behavior, a response surface methodology was used along with statistical methods. The experiments were performed with molar ratio varying from 1:8 to 1:24, catalyst percentage of 0.1 to 1.3% (weight), ultrasonic nozzle amplitude varying from 30% to 90% (180 to 540 W) and vibration pulse varying from 50% to 90%. Process variables were optimized with the optimal molar ratio of 1:14.87, catalyst concentration of 1.17%, ultrasonic probe amplitude of 67.64% and vibration pulse of 67.30%. The average conversion of triglycerides was found to be 98.12% at the optimal conditions. The experimental data were adjusted to the second-order irreversible reaction approximation model, under optimized conditions, with temperatures of 30, 40 and 50 oC. Lastly, in comparison to the conventional methodology, a significant increase of 14% of triglycerides conversion utilizing ultrasonic waves was observed 2021-06-14T19:39:46Z 2021-06-14T19:39:46Z 2018 article MEDEIROS, A. M.; SANTOS, E. R. M.; AZEVEDO, S. H. G.; JESUS, A. A.; OLIVEIRA, H. N. M.; SOUSA, E. M. B. D. Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production. Brazilian Journal of Chemical Engineering, v. 35, p. 1005-1018, 2018. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322018000301005&tlng=en. Acesso em: 20 abr. 2021. https://doi.org/10.1590/0104-6632.20180353s20170001. 1678-4383 0104-6632 https://repositorio.ufrn.br/handle/123456789/32681 10.1590/0104-6632.20180353s20170001 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Brazilian Society of Chemical Engineering
institution Repositório Institucional
collection RI - UFRN
language English
topic Esters
Gossypium hirsutum L.
Sonicator
Experimental Planning
Kinetics
spellingShingle Esters
Gossypium hirsutum L.
Sonicator
Experimental Planning
Kinetics
Medeiros, Aldo Miro de
Santos, Ênio Rafael de Medeiros
Azevedo, Saulo Henrique Gomes de
Jesus, Anderson Alles de
Oliveira, Humberto Neves Maia de
Sousa, Elisa Maria Bittencourt Dutra de
Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
description In this study, research was performed on the interesterification reaction of cotton oil with methyl acetate, using potassium methoxide as catalyst, in the presence of ultrasonic waves. In order to obtain a better understanding of the process variables behavior, a response surface methodology was used along with statistical methods. The experiments were performed with molar ratio varying from 1:8 to 1:24, catalyst percentage of 0.1 to 1.3% (weight), ultrasonic nozzle amplitude varying from 30% to 90% (180 to 540 W) and vibration pulse varying from 50% to 90%. Process variables were optimized with the optimal molar ratio of 1:14.87, catalyst concentration of 1.17%, ultrasonic probe amplitude of 67.64% and vibration pulse of 67.30%. The average conversion of triglycerides was found to be 98.12% at the optimal conditions. The experimental data were adjusted to the second-order irreversible reaction approximation model, under optimized conditions, with temperatures of 30, 40 and 50 oC. Lastly, in comparison to the conventional methodology, a significant increase of 14% of triglycerides conversion utilizing ultrasonic waves was observed
format article
author Medeiros, Aldo Miro de
Santos, Ênio Rafael de Medeiros
Azevedo, Saulo Henrique Gomes de
Jesus, Anderson Alles de
Oliveira, Humberto Neves Maia de
Sousa, Elisa Maria Bittencourt Dutra de
author_facet Medeiros, Aldo Miro de
Santos, Ênio Rafael de Medeiros
Azevedo, Saulo Henrique Gomes de
Jesus, Anderson Alles de
Oliveira, Humberto Neves Maia de
Sousa, Elisa Maria Bittencourt Dutra de
author_sort Medeiros, Aldo Miro de
title Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
title_short Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
title_full Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
title_fullStr Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
title_full_unstemmed Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
title_sort chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
publisher Brazilian Society of Chemical Engineering
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/32681
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