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dc.contributor.authorValverde Salamanca, Abel
dc.contributor.authorOsmieri, Luigi
dc.contributor.authorRecasens Baxarías, Francisco Javier
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2018-12-03T12:00:05Z
dc.date.available2019-08-19T00:25:34Z
dc.date.issued2019-01-01
dc.identifier.citationValverde, A., Osmieri, L., Recasens, F. Binary interaction parameters from reacting mixture data. Supercritical biodiesel process with CO2 as cosolvent. "The Journal of supercritical fluids", 1 Gener 2019, vol. 143, p. 107-119.
dc.identifier.issn0896-8446
dc.identifier.urihttp://hdl.handle.net/2117/125324
dc.description.abstractA method is presented for the calculation of binary interaction parameters from reacting mixture data. The process studied is the supercritical methanol transesterification of triolein with CO2 as cosolvent. The reaction proceeds through 3 reversible reactions in series, on a solid catalyst (Nafion® SAC-13), for which the kinetics is known. To describe the reactor performance, the kinetic constants and the binary interaction parameters for the Peng-Robinson equation of state, are necessary, and were included in the reactor model. Previously published view-cell observations and thermodynamic calculations indicate that no condensation occurs in the reactor. Kinetic and thermodynamic parameters were determined by a global optimisation procedure. From the rate constants obtained, the process exhibits some reversibility, despite the excess of methanol used. Our methodology allows to obtain the binary interaction coefficients for the intermediate reaction species (dioleins and monooleins) that were unavailable so far. The method is sensitive to the errors in the measured concentrations
dc.format.extent13 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshEquations of state
dc.subject.lcshBiodiesel
dc.subject.lcshMethanol
dc.subject.lcshSupercritical fluids
dc.subject.otherReactor model
dc.subject.otherSimulation
dc.subject.otherPeng-Robinson
dc.subject.otherBiodiesel
dc.subject.otherMethanol
dc.subject.otherSupercritical
dc.titleBinary interaction parameters from reacting mixture data. Supercritical biodiesel process with CO2 as cosolvent
dc.typeArticle
dc.subject.lemacEquacions d'estat
dc.subject.lemacBiodièsels
dc.subject.lemacMetanol
dc.subject.lemacFluids supercrítics
dc.identifier.doi10.1016/j.supflu.2018.05.023
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0896844618302560
dc.rights.accessOpen Access
local.identifier.drac23516747
dc.description.versionPostprint (author's final draft)
local.citation.authorValverde, A.; Osmieri, L.; Recasens, F.
local.citation.publicationNameThe Journal of supercritical fluids
local.citation.volume143
local.citation.startingPage107
local.citation.endingPage119


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