Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production

A semi-batch bubble reactor has been developed to produce fatty acid ethyl ester (biodiesel) by acid-catalyzed esterification of oleic acid with superheated ethanol vapor. In this paper, the effects of reaction temperature (110, 130 and 150°C), ethanol volumetric flow rate (1.35, 2.50 and 3.65 mL/mi...

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Principais autores: Souza, Domingos Fabiano de Santana, Silva, Maxwell Gomes, Oliveira, G. S., Carvalho, J. C. R., Nobre, L. R. P., Deus, M. S., Jesus, A. A., Oliveira, Jackson Araújo de
Formato: article
Idioma:English
Publicado em: Brazilian Society of Chemical Engineering
Assuntos:
Biodiesel
Esterification
Bubble reactor
Oleic acid
Ethanol
Endereço do item:https://repositorio.ufrn.br/handle/123456789/33914
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spelling ri-123456789-339142021-09-16T14:34:34Z Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production Souza, Domingos Fabiano de Santana Silva, Maxwell Gomes Oliveira, G. S. Carvalho, J. C. R. Nobre, L. R. P. Deus, M. S. Jesus, A. A. Oliveira, Jackson Araújo de Biodiesel Esterification Bubble reactor Oleic acid Ethanol A semi-batch bubble reactor has been developed to produce fatty acid ethyl ester (biodiesel) by acid-catalyzed esterification of oleic acid with superheated ethanol vapor. In this paper, the effects of reaction temperature (110, 130 and 150°C), ethanol volumetric flow rate (1.35, 2.50 and 3.65 mL/min) and vapor bubble size on the reactor performance were evaluated. The results demonstrated that temperature and volumetric flow rate have significant effects on the chemical reaction, gas phase solubility and mass transfer limitations. In addition, the free fatty acid conversion velocity was increased by approximately 56% when a microporous stainless-steel tube was employed to generate and distribute the vapor bubbles inside the reactor, which allowed the process to reach 95% conversion in approximately 40 minutes for the operating temperature of 150°C and volumetric flow rate of 2.5 mL/min 2021-09-16T14:34:33Z 2021-09-16T14:34:33Z 2019-03 article SILVA, M. G.; OLIVEIRA, G. S.; CARVALHO, J. C. R.; NOBRE, L. R. P.; DEUS, M. S.; JESUS, A. A.; OLIVEIRA, J. A.; SOUZA, D. F. S.. ESTERIFICATION OF OLEIC ACID IN A SEMI-BATCH BUBBLE REACTOR FOR BIODIESEL PRODUCTION. Brazilian Journal Of Chemical Engineering, [S.L.], v. 36, n. 1, p. 299-308, mar. 2019. Disponível em <www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322019000100299> . Acesso em 25 mar. 2021. http://dx.doi.org/10.1590/0104-6632.20190361s20180185. 1678-4383 https://repositorio.ufrn.br/handle/123456789/33914 10.1590/0104-6632.20190361s20180185 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 Biodiesel
Esterification
Bubble reactor
Oleic acid
Ethanol
spellingShingle Biodiesel
Esterification
Bubble reactor
Oleic acid
Ethanol
Souza, Domingos Fabiano de Santana
Silva, Maxwell Gomes
Oliveira, G. S.
Carvalho, J. C. R.
Nobre, L. R. P.
Deus, M. S.
Jesus, A. A.
Oliveira, Jackson Araújo de
Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
description A semi-batch bubble reactor has been developed to produce fatty acid ethyl ester (biodiesel) by acid-catalyzed esterification of oleic acid with superheated ethanol vapor. In this paper, the effects of reaction temperature (110, 130 and 150°C), ethanol volumetric flow rate (1.35, 2.50 and 3.65 mL/min) and vapor bubble size on the reactor performance were evaluated. The results demonstrated that temperature and volumetric flow rate have significant effects on the chemical reaction, gas phase solubility and mass transfer limitations. In addition, the free fatty acid conversion velocity was increased by approximately 56% when a microporous stainless-steel tube was employed to generate and distribute the vapor bubbles inside the reactor, which allowed the process to reach 95% conversion in approximately 40 minutes for the operating temperature of 150°C and volumetric flow rate of 2.5 mL/min
format article
author Souza, Domingos Fabiano de Santana
Silva, Maxwell Gomes
Oliveira, G. S.
Carvalho, J. C. R.
Nobre, L. R. P.
Deus, M. S.
Jesus, A. A.
Oliveira, Jackson Araújo de
author_facet Souza, Domingos Fabiano de Santana
Silva, Maxwell Gomes
Oliveira, G. S.
Carvalho, J. C. R.
Nobre, L. R. P.
Deus, M. S.
Jesus, A. A.
Oliveira, Jackson Araújo de
author_sort Souza, Domingos Fabiano de Santana
title Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
title_short Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
title_full Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
title_fullStr Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
title_full_unstemmed Esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
title_sort esterification of oleic acid in a semi-batch bubble reactor for biodiesel production
publisher Brazilian Society of Chemical Engineering
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/33914
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