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Optimization and kinetic study of biodiesel production through esterification of oleic acid applying ionic liquids as catalysts

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dc.contributor.authorRoman, Fernanda
dc.contributor.authorRibeiro, António E.
dc.contributor.authorQueiroz, Ana
dc.contributor.authorLenzi, Giane G.
dc.contributor.authorChaves, Eduardo S.
dc.contributor.authorBrito, Paulo
dc.date.accessioned2018-02-19T10:00:00Z
dc.date.accessioned2019-02-04T17:07:30Z
dc.date.available2018-01-19T10:00:00Z
dc.date.available2019-02-04T17:07:30Z
dc.date.issued2019
dc.description.abstractIn this study, 1-methylimidazolium hydrogen sulfate, [HMIM]HSO4, ionic liquid, was successfully applied as a catalyst in the biodiesel production through the esterification reaction of oleicacid withmethanol.A response surface methodology (RSM) known as Box-Behnken Design (BBD) was applied to optimize the main experimental reaction conditions,using a set of 27 experiments.This optimization was based on the maximization of both the conversion of oleic acid and the Fatty Acid Methyl Esters (FAME) content of the obtained biodiesel samples.It was concluded that the two most relevant parameters for both the conversionand the FAME content were the molar ratio between oleic acid and methanol and the catalyst dosage.Accordingly to the model,the optimum condition for the maximum conversion was determined as being 8h, 110 ± 2°C, 15:1M ratio methanol/oleic acid and a catalyst dosage of 15wt%,resulting in a 95% conversion and for the maximum FAME content were 8h,110 ± 2°C,14:1M ratio and a catalyst dosage of 14wt%,leading to a FAME content of 90%. The kinetics of the esterification reaction was also evaluated,and the experimental results were well described using a third-order reaction model. The kinetic parameters were experimentally determined,and the value of the activation energy was 6.8kJ/mol and the pre-exponential factor was 0.0765L2.mol−2.min−1 confirming that the ionic liquid,[HMIM]HSO4,is a good alternative for replacing traditional catalysts for biodiesel production through esterification reaction.en_EN
dc.description.sponsorshipThe authors hereby acknowledge Dr. Isabel Patrícia Fernandes and Prof. Dr. Filomena Barreiro, for the support provided regarding the FTIR analysis, and Eng. Cristiana Brás Meireles. Also, the authors express their gratitude to Instituto Politécnico de Bragança and Universidade Tecnológica Federal do Paraná.
dc.description.versioninfo:eu-repo/semantics/publishedVersionen_EN
dc.identifier.citationRoman, Fernanda F.; Ribeiro, António E.; Queiroz, Ana; Lenzi, Giane G.; Chaves, Eduardo S.; Brito, Paulo (2019). Optimization and kinetic study of biodiesel production through esterification of oleic acid applying ionic liquids as catalysts. Fuel. ISSN 0016-2361. 239, p. 1231-1239en_EN
dc.identifier.doi10.1016/j.fuel.2018.11.087en_EN
dc.identifier.issn0016-2361
dc.identifier.urihttp://hdl.handle.net/10198/18716
dc.language.isoeng
dc.peerreviewedyesen_EN
dc.subjectBiodiesel productionen_EN
dc.subjectEsterificationen_EN
dc.subjectIonic liquidsen_EN
dc.subjectKinetics studyen_EN
dc.subjectResponse surface methodologyen_EN
dc.titleOptimization and kinetic study of biodiesel production through esterification of oleic acid applying ionic liquids as catalystsen_EN
dc.typejournal article
dspace.entity.typePublication
person.familyNameRoman
person.familyNameRibeiro
person.familyNameQueiroz
person.familyNameBrito
person.givenNameFernanda F.
person.givenNameAntónio E.
person.givenNameAna
person.givenNamePaulo
person.identifier.ciencia-idEE1B-DAA7-D0BD
person.identifier.ciencia-id3211-D5B0-870D
person.identifier.ciencia-id2611-D40C-3472
person.identifier.ciencia-idA31A-D845-A6E2
person.identifier.orcid0000-0001-5360-5298
person.identifier.orcid0000-0003-4569-7887
person.identifier.orcid0000-0003-4761-0618
person.identifier.orcid0000-0003-1805-0252
person.identifier.ridO-8367-2015
person.identifier.scopus-author-id23390701300
person.identifier.scopus-author-id31168231800
rcaap.rightsopenAccessen_EN
rcaap.typearticleen_EN
relation.isAuthorOfPublicationc145030b-c811-4be4-b6af-1926e364cb33
relation.isAuthorOfPublication52666376-f100-4407-87ef-dc5df3613761
relation.isAuthorOfPublication508436a2-5db1-481e-9c48-eab160333d61
relation.isAuthorOfPublication0370deac-dc4e-4b3d-8e1f-fc2d117794d2
relation.isAuthorOfPublication.latestForDiscoveryc145030b-c811-4be4-b6af-1926e364cb33

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