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Phase equilibria in sugar solutions using the A-UNIFAC model

dc.contributor.authorFerreira, Olga
dc.contributor.authorBrignole, Esteban A.
dc.contributor.authorMacedo, Maria E.
dc.date.accessioned2010-01-26T22:59:11Z
dc.date.available2010-01-26T22:59:11Z
dc.date.issued2003
dc.descriptionhttp://apps.isiknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=2&SID=V21Di6PajaHLPoM3@AJ&page=1&doc=1&colname=WOS
dc.description.abstractIn this work, a modified UNIFAC model that explicitly takes into account association effects is used to describe the thermodynamic properties of phase equilibria of mixtures containing common sugars, alcohols, and water. Three main groups were defined to represent the sugars family: the sugar ring (pyranose and furanose), the osidic bond (-O-), and the hydroxyl ring group (OHring). For the association term, a general two-site OH associating group is used to represent association effects in these solutions, allowing a straightforward extension to multicomponent mixtures. Correlation of both solvent properties (osmotic coefficients, water activities, vapor pressures, and boiling and freezing points of binary aqueous sugar solutions) and sugar solubility in water and alcohols gives very accurate results. Good predictions are obtained for vapor-liquid equilibrium and solid-liquid equilibrium of ternary and quaternary mixtures of sugars in mixed solvents.pt
dc.description.sponsorshipO.F. acknowledges financial support from the PRAXIS program, FCT, Lisbon, Portugal.pt
dc.identifier.citationFerreira, Olga; Brignole, Esteban A.; Macedo, Maria E. (2003). Phase equilibria in sugar solutions using the A-UNIFAC model. Industrial & Engineering Chemistry Research. ISSN 1520-5045. 42:24, p.6212–6222pt
dc.identifier.doi10.1021/ie030246n
dc.identifier.issn1520-5045
dc.identifier.urihttp://hdl.handle.net/10198/1486
dc.language.isoengpt
dc.publisherACSpt
dc.titlePhase equilibria in sugar solutions using the A-UNIFAC modelpt
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleIndustrial & Engineering Chemistry Researchpt
person.familyNameFerreira
person.givenNameOlga
person.identifier.ciencia-id9F1D-C75A-4A54
person.identifier.orcid0000-0001-8414-3479
person.identifier.ridM-4567-2013
person.identifier.scopus-author-id57203083219
rcaap.rightsopenAccesspt
rcaap.typearticlept
relation.isAuthorOfPublication59e0c608-0c21-4191-af5e-529d21970399
relation.isAuthorOfPublication.latestForDiscovery59e0c608-0c21-4191-af5e-529d21970399

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