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Densities and Viscosities of Fatty Acid Methyl and Ethyl Esters

2010-07-19Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
dc.contributor.authorPratas, Maria Jorge
dc.contributor.authorFreitas, Samuel
dc.contributor.authorOliveira, Mariana B.
dc.contributor.authorMonteiro, Sílvia C.
dc.contributor.authorLima, Alvaro S.
dc.contributor.authorCoutinho, João A. P.
dc.date.accessioned2025-11-07T14:47:59Z
dc.date.available2025-11-07T14:47:59Z
dc.date.issued2010-07-19
dc.descriptionFonte: https://path.web.ua.pt/file/je100042c.pdf
dc.description.abstractTo develop reliable models for the densities and viscosities of biodiesel fuel, reliable data for the pure fatty acid esters are required. Densities and viscosities were measured for seven ethyl esters and eight methyl esters, at atmospheric pressure and temperatures from (273.15 to 363.15) K. A critical assessment of the measured data against the data previously available in the literature was carried out. It is shown that the data here reported presents deviations of less than 0.15 % for densities and less than 5 % for viscosities. Correlations for the densities and viscosities with temperature are proposed. The densities and viscosities of the pure ethyl and methyl esters here reported were used to evaluate three predictive models. The GCVOL group contribution method is shown to be able to predict densities for these compounds within 1 %. The methods of Ceriani and Meirelles (CM) and of Marreiro and Gani (MG) were applied to the viscosity data. It is shown that only the first of these methods is able to provide a fair description of the viscosities of fatty acid esters.eng
dc.description.sponsorshipM.J.P. and M.B.O. acknowledge the financial support from Fundação para a Ciência e a Tecnologia through their Ph.D. grants (SFRH/BD/28258/2006, SFRH/BD/29062/2006). S.F. aknowledges a Ph.D. grant from Fundação Oriente and also financial support from the University of Aveiro.
dc.identifier.citationMaria Jorge Pratas, Samuel Freitas, Mariana B. Oliveira, Sílvia C. Monteiro, Alvaro S. Lima, and João A. P. Coutinho. Journal of Chemical & Engineering Data. 2010, 55(9), pp. 3983-3990. DOI: https://doi.org/10.1021/je100042c.
dc.identifier.doi10.1021/je100042c
dc.identifier.eissn1520-5134
dc.identifier.issn0021-9568
dc.identifier.urihttp://hdl.handle.net/10400.8/14561
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAmerican Chemical Society
dc.relation.hasversionhttps://pubs.acs.org/doi/10.1021/je100042c
dc.relation.ispartofJournal of Chemical & Engineering Data
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAcids
dc.subjectAtmospheric pressure
dc.subjectEsterification
dc.subjectFatty acids
dc.subjectSynthetic fuels
dc.subjectViscometers
dc.subjectViscosity
dc.titleDensities and Viscosities of Fatty Acid Methyl and Ethyl Esterseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3990
oaire.citation.issue9
oaire.citation.startPage3983
oaire.citation.titleJournal of Chemical and Engineering Data
oaire.citation.volume55
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMonteiro
person.givenNameSilvia
person.identifier.ciencia-id9516-C6EF-0C94
person.identifier.orcid0000-0002-3348-5556
person.identifier.scopus-author-id36509040900
relation.isAuthorOfPublication64cabc69-0629-4d92-a8ef-f3ab2fc4336e
relation.isAuthorOfPublication.latestForDiscovery64cabc69-0629-4d92-a8ef-f3ab2fc4336e

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To develop reliable models for the densities and viscosities of biodiesel fuel, reliable data for the pure fatty acid esters are required. Densities and viscosities were measured for seven ethyl esters and eight methyl esters, at atmospheric pressure and temperatures from (273.15 to 363.15) K. A critical assessment of the measured data against the data previously available in the literature was carried out. It is shown that the data here reported presents deviations of less than 0.15 % for densities and less than 5 % for viscosities. Correlations for the densities and viscosities with temperature are proposed. The densities and viscosities of the pure ethyl and methyl esters here reported were used to evaluate three predictive models. The GCVOL group contribution method is shown to be able to predict densities for these compounds within 1 %. The methods of Ceriani and Meirelles (CM) and of Marreiro and Gani (MG) were applied to the viscosity data. It is shown that only the first of these methods is able to provide a fair description of the viscosities of fatty acid esters.
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