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Application of the GCA-EOS model to the supercritical processing of associating oil derivatives: fatty acids, alcohols and triglycerides

2003Conference object Open access
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dc.contributor.authorFerreira, Olga
dc.contributor.authorPereda, Selva
dc.contributor.authorBottini, Susana B.
dc.contributor.authorBrignole, Esteban A.
dc.date.accessioned2010-02-25T14:50:20Z
dc.date.available2010-02-25T14:50:20Z
dc.date.issued2003
dc.description.abstractSupercritical processes are of interest in the fatty oil industry for a variety of applications: extraction and refining, removal of pollutants, recovery of specialties, hydrogenation of oils and derivatives, etc. Typical process mixtures include heavy compounds and gases at near critical conditions. At high pressures these asymmetric systems present a complex multiphase behaviour, difficult to model. This complexity increases if some of the mixture components are able to self- and/or cross associate. In the present work, the group contribution with association equation of state (GCA-EoS) [3] is extended to represent high pressure phase equilibria in mixtures of supercritical gases (carbon dioxide, propane, ethane) with fatty oil derivatives, such as mono- and di-glycerides, fatty acids, alcohols, water and esters. Self- and cross association between associating groups present in these mixtures are considered. Satisfactory correlation and prediction of equilibrium data are obtained. The capacity of the model to follow the behaviour of solutions towards the limit of infinite dilution of the associating components is of particular importance.pt
dc.identifier.citationFerreira, Olga; Pereda, Selva; Bottini, Susana B.; Brignole, Esteban A. (2003). Application of the GCA-Eos model to the supercritical processing of associating oil derivatives: fatty acids, alcohols and triglycerides. In 6th International Symposium on Supercritical Fluids. Versailles, France. p.819-824pt
dc.identifier.urihttp://hdl.handle.net/10198/2167
dc.language.isoengpt
dc.titleApplication of the GCA-EOS model to the supercritical processing of associating oil derivatives: fatty acids, alcohols and triglyceridespt
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceVersailles, Françapt
oaire.citation.endPage824pt
oaire.citation.startPage819pt
oaire.citation.titleProceedings of the 6th International Symposium on Supercritical Fluidspt
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.typeconferenceObjectpt
relation.isAuthorOfPublication59e0c608-0c21-4191-af5e-529d21970399
relation.isAuthorOfPublication.latestForDiscovery59e0c608-0c21-4191-af5e-529d21970399

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