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

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dc.contributor.authorMedeiros, Aldo Miro de
dc.contributor.authorSantos, Ênio Rafael de Medeiros
dc.contributor.authorAzevedo, Saulo Henrique Gomes de
dc.contributor.authorJesus, Anderson Alles de
dc.contributor.authorOliveira, Humberto Neves Maia de
dc.contributor.authorSousa, Elisa Maria Bittencourt Dutra de
dc.date.accessioned2021-06-14T19:39:46Z
dc.date.available2021-06-14T19:39:46Z
dc.date.issued2018
dc.description.resumoIn 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 observedpt_BR
dc.identifier.citationMEDEIROS, 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.pt_BR
dc.identifier.doi10.1590/0104-6632.20180353s20170001
dc.identifier.issn1678-4383
dc.identifier.issn0104-6632
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/32681
dc.languageenpt_BR
dc.publisherBrazilian Society of Chemical Engineeringpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectEsterspt_BR
dc.subjectGossypium hirsutum L.pt_BR
dc.subjectSonicatorpt_BR
dc.subjectExperimental Planningpt_BR
dc.subjectKineticspt_BR
dc.titleChemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel productionpt_BR
dc.typearticlept_BR

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