Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/32681 |
Resumo: | 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 |
id |
UFRN_d5c44d1e2995eac4d6687c8e053f9fef |
---|---|
oai_identifier_str |
oai:https://repositorio.ufrn.br:123456789/32681 |
network_acronym_str |
UFRN |
network_name_str |
Repositório Institucional da UFRN |
repository_id_str |
|
spelling |
Medeiros, Aldo Miro deSantos, Ênio Rafael de MedeirosAzevedo, Saulo Henrique Gomes deJesus, Anderson Alles deOliveira, Humberto Neves Maia deSousa, Elisa Maria Bittencourt Dutra de2021-06-14T19:39:46Z2021-06-14T19:39:46Z2018MEDEIROS, 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/10.1590/0104-6632.20180353s20170001.1678-43830104-6632https://repositorio.ufrn.br/handle/123456789/3268110.1590/0104-6632.20180353s20170001Brazilian Society of Chemical EngineeringAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessEstersGossypium hirsutum L.SonicatorExperimental PlanningKineticsChemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel productioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleIn 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 observedengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALChemicalInteresterificationCotton_Oliveira_2018.pdfChemicalInteresterificationCotton_Oliveira_2018.pdfapplication/pdf1912871https://repositorio.ufrn.br/bitstream/123456789/32681/1/ChemicalInteresterificationCotton_Oliveira_2018.pdfb414c3288034617f34c561ac4179fa32MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/32681/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/32681/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52123456789/326812021-06-14 16:39:48.238oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-06-14T19:39:48Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production |
title |
Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production |
spellingShingle |
Chemical interesterification of cotton oil with methyl acetate assisted by ultrasound for biodiesel production Medeiros, Aldo Miro de Esters Gossypium hirsutum L. Sonicator Experimental Planning Kinetics |
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 |
author |
Medeiros, Aldo Miro 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_role |
author |
author2 |
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 |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
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 |
dc.subject.por.fl_str_mv |
Esters Gossypium hirsutum L. Sonicator Experimental Planning Kinetics |
topic |
Esters Gossypium hirsutum L. Sonicator Experimental Planning Kinetics |
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 |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2021-06-14T19:39:46Z |
dc.date.available.fl_str_mv |
2021-06-14T19:39:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
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. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/32681 |
dc.identifier.issn.none.fl_str_mv |
1678-4383 0104-6632 |
dc.identifier.doi.none.fl_str_mv |
10.1590/0104-6632.20180353s20170001 |
identifier_str_mv |
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 10.1590/0104-6632.20180353s20170001 |
url |
https://repositorio.ufrn.br/handle/123456789/32681 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
instname_str |
Universidade Federal do Rio Grande do Norte (UFRN) |
instacron_str |
UFRN |
institution |
UFRN |
reponame_str |
Repositório Institucional da UFRN |
collection |
Repositório Institucional da UFRN |
bitstream.url.fl_str_mv |
https://repositorio.ufrn.br/bitstream/123456789/32681/1/ChemicalInteresterificationCotton_Oliveira_2018.pdf https://repositorio.ufrn.br/bitstream/123456789/32681/3/license.txt https://repositorio.ufrn.br/bitstream/123456789/32681/2/license_rdf |
bitstream.checksum.fl_str_mv |
b414c3288034617f34c561ac4179fa32 e9597aa2854d128fd968be5edc8a28d9 4d2950bda3d176f570a9f8b328dfbbef |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN) |
repository.mail.fl_str_mv |
|
_version_ |
1802117638432751616 |