Phase equilibria for the mixtures of the deep eutectic solvent L-menthol + thymol plus CO2 at high pressure

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dc.contributor.authorPérez Velilla, Eduardo
dc.contributor.authorRato, Sergio
dc.contributor.authorLoaisa, Gema
dc.contributor.authorCabañas Poveda, Albertina
dc.date.accessioned2024-01-10T17:57:55Z
dc.date.available2024-01-10T17:57:55Z
dc.date.issued2023
dc.description.abstractThe Vapour-Liquid Equilibrium (VLE) of different mixtures of CO2 + L-menthol, CO2 + thymol and CO2 + L-menthol + thymol has been determined at 35, 40, 50 and 60 °C and pressures up to 220 bar using a variable volume view cell. Menthol + Thymol form a deep eutectic solvent (DES) mixture at a 1:1 molar ratio. For selected conditions, the composition of the vapour phase was determined by 1H NMR. By interpolation of the experimental values, ternary diagrams were built. The mutual solubility between CO2 and DES decreased as the proportion menthol:thymol approached the eutectic composition (1:1). Mutual miscibility also decreased with temperature and increased with pressure. The composition of the mixture of menthol + thymol (1:1) does not remain stable at 60 °C but it does at lower temperatures. The intermolecular interactions between menthol and thymol are responsible for this behaviour. The Peng-Robinson equation of state was used to correlate the results with promising results.
dc.description.departmentDepto. de Química Física
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (España)
dc.description.statuspub
dc.identifier.citationPérez, E.; Rato, S.; Loaisa, G.; Cabañas, A. Phase equilibria for the mixtures of the deep eutectic solvent L-menthol + thymol plus CO2 at high pressure. Journal of Industrial and Engineering Chemistry 2023, 121, 312-321 DOI:10.1016/j.jiec.2023.01.034.
dc.identifier.doi10.1016/j.jiec.2023.01.034
dc.identifier.issn1226-086X
dc.identifier.officialurlhttps://doi.org/10.1016/j.jiec.2023.01.034
dc.identifier.urihttps://hdl.handle.net/20.500.14352/92369
dc.journal.titleJournal of Industrial and Engineering Chemistry
dc.language.isoeng
dc.page.final321
dc.page.initial312
dc.publisherElsevier
dc.relation.projectIDRTI2018-097230-B-100.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu544
dc.subject.keywordDeep Eutectic Solvents
dc.subject.keywordSupercritical CO2
dc.subject.keywordMenthol
dc.subject.keywordThymol
dc.subject.keywordSolubility
dc.subject.keywordPhase diagram
dc.subject.ucmQuímica física (Química)
dc.subject.ucmTermodinámica
dc.subject.ucmIngeniería química
dc.subject.unesco2307 Química Física
dc.subject.unesco2210.32 Termodinámica
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.titlePhase equilibria for the mixtures of the deep eutectic solvent L-menthol + thymol plus CO2 at high pressure
dc.typejournal article
dc.type.hasVersionVoR
dc.volume.number121
dspace.entity.typePublication
relation.isAuthorOfPublication3dbefa95-edab-433b-951f-82e8bea056e1
relation.isAuthorOfPublication08f9e67b-e7ba-420b-a651-37a03ba04f0c
relation.isAuthorOfPublication.latestForDiscovery08f9e67b-e7ba-420b-a651-37a03ba04f0c
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