Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/341426
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampGonçalves, Daniel-
dc.contributor.authorunicampFerreira, Marcela Cravo-
dc.contributor.authorunicampMeirelles, Antonio Jose de Almeida-
dc.contributor.authorunicampBatista, Eduardo Augusto Caldas-
dc.typeArtigopt_BR
dc.titleLiquid-liquid equilibrium data and thermodynamic modeling of systems involved in the biodiesel production in terms of acylglycerols, free fatty acids, ethyl esters, and ethanol at 303.2 and 318.2 K and local pressurept_BR
dc.contributor.authorShiozawa, S.-
dc.contributor.authorGonçalves, D.-
dc.contributor.authorFerreira, M.C.-
dc.contributor.authorMeirelles, A.J.A.-
dc.contributor.authorBatista, E.A.C.-
dc.subjectÓleos vegetaispt_BR
dc.subject.otherlanguageVegetable oilspt_BR
dc.description.abstractResearches on renewable fuels as biodiesel are being done due to the global concern about the shortage of non-renewable natural energy resources. For the biodiesel production, vegetable oils are transesterified with short-chain alcohols, generating intermediate compounds as monoacylglycerols (MAG) and diacylglycerols (DAG). In order to understand the first stage of the transesterification reaction during the biodiesel production, this study reported experimental liquid-liquid equilibrium (LLE) data and the thermodynamic modeling of systems composed of refined oil (soybean, cottonseed, and rice bran) + commercial mixture of partial acylglycerols (MAG and DAG) + free fatty acids (FFA) + fatty acid ethyl esters (FAEE) + ethanol at T = (303.2 and 318.2) K. The LLE experimental data were thus used to adjust the NRTL model parameters and to evaluate three parameters sets of the UNIFAC model. Calculated results by the NRTL model were well correlated to the experimental ones, with mass deviations up to 0.32%, whereas the deviations calculated for the UNIFAC model ranged from 1.04 to 9.46%. FFA and MAG exhibited preference to the solvent-rich phase, whereas FAEE and DAG preferred the oil-rich phase. New and more complex LLE data considering partial acylglycerols, FFA, besides the FAEE, as here reported, can assist to describe the real behavior of the transesterification step involved in the biodiesel production process and, consequently, its optimizationpt_BR
dc.relation.ispartofFluid phase equilibriapt_BR
dc.relation.ispartofabbreviationFluid phase equilib.pt_BR
dc.publisher.cityAmsterdampt_BR
dc.publisher.countryPaíses Baixospt_BR
dc.publisherElsevierpt_BR
dc.date.issued2020-
dc.date.monthofcirculationMar.pt_BR
dc.language.isoengpt_BR
dc.description.volume507pt_BR
dc.rightsFechadopt_BR
dc.sourceSCOPUSpt_BR
dc.identifier.issn0378-3812pt_BR
dc.identifier.eissn1879-0224pt_BR
dc.identifier.doi10.1016/j.fluid.2019.112431pt_BR
dc.identifier.urlhttps://www.sciencedirect.com/science/article/abs/pii/S0378381219304935pt_BR
dc.description.sponsorshipCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQpt_BR
dc.description.sponsorshipCOORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPESpt_BR
dc.description.sponsorshipFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPpt_BR
dc.description.sponsordocumentnumber406856/2013–3; 305870/2014–9; 406963/2016–9; 308924/2017–7pt_BR
dc.description.sponsordocumentnumber1089097pt_BR
dc.description.sponsordocumentnumber2014/21252–0, 2016/10636–8, 2017/21607–1, 2018/13207–6pt_BR
dc.date.available2020-05-14T17:25:42Z-
dc.date.accessioned2020-05-14T17:25:42Z-
dc.description.provenanceSubmitted by Sanches Olivia (olivias@unicamp.br) on 2020-05-14T17:25:42Z No. of bitstreams: 0. Added 1 bitstream(s) on 2020-08-27T19:15:31Z : No. of bitstreams: 1 2-s2.0-85076415803.pdf: 1051860 bytes, checksum: bd60908bb8f4ce9455f9c1350af6a7cb (MD5)en
dc.description.provenanceMade available in DSpace on 2020-05-14T17:25:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2020en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/341426-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Engenharia de Alimentospt_BR
dc.contributor.departmentDepartamento de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Tecnologiapt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.contributor.unidadeFaculdade de Engenharia de Alimentospt_BR
dc.subject.keywordVegetable oilspt_BR
dc.subject.keywordRenewable fuelpt_BR
dc.subject.keywordPhase equilibriapt_BR
dc.subject.keywordNRTLpt_BR
dc.subject.keywordUNIFACpt_BR
dc.identifier.source2-s2.0-85076415803pt_BR
dc.creator.orcid0000-0002-2581-7207pt_BR
dc.creator.orcid0000-0003-2105-529Xpt_BR
dc.creator.orcid0000-0002-6363-126Xpt_BR
dc.creator.orcid0000-0002-8102-9424pt_BR
dc.type.formArtigopt_BR
dc.identifier.articleid112431pt_BR
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