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The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing

2023Journal article Open access
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dc.contributor.authorZambom, Aline
dc.contributor.authorVilas-Boas, Sérgio M.
dc.contributor.authorSilva, Liliana P.
dc.contributor.authorMartins, Mónia A. R.
dc.contributor.authorFerreira, Olga
dc.contributor.authorPinho, Simão
dc.date.accessioned2024-01-03T11:05:57Z
dc.date.available2024-01-03T11:05:57Z
dc.date.issued2023
dc.description.abstractAbstract: The potentialities of methylimidazolium-based ionic liquids (ILs) as solvents were evaluated for some relevant separation problems—terpene fractionation and fuel processing—studying selectivities, capacities, and solvent performance indices. The activity coefficients at infinite dilution of the solute (1) in the IL (3), g¥ 13, of 52 organic solutes were measured by inverse gas chromatography over a temperature range of 333.2–453.2 K. The selected ILs are 1-butyl-3-methylimidazolium hexafluorophosphate, [C4mim][PF6], and the equimolar mixture of [C4mim][PF6] and 1-butyl-3-methylimidazolium chloride, [C4mim]Cl. Generally, low polar solutes follow g¥ 1,[C4mim]Cl > g¥ 1,[C4mim][PF6]+[C4mim]Cl > g¥ 1,[C4mim][PF6] while the opposite behavior is observed for alcohols and water. For citrus essential oil deterpenation, the results suggest that cations with long alkyl chains, such as [C12mim]+, promote capacity, while selectivity depends on the solute polarity. Promising results were obtained for the separation of several model mixtures relevant to fuel industries using the equimolar mixture of [C4mim][PF6] and [C4mim]Cl. This work demonstrates the importance of tailoring the polarity of the solvents, suggesting the use of ILs with mixed anions as alternative solvents for the removal of aliphatic hydrocarbons and contaminants from fuels.pt_PT
dc.description.sponsorshipThis research was funded by the European Regional Development Fund (ERDF) through the Regional Operational Program North 2020, within the scope of Project GreenHealth—Digital strategies in biological assets to improve well-being and promote green health, Norte-01-0145-FEDER- 000042, to which A. Zambom is thankful for her grant. S. M. Vilas-Boas thanks FCT and the European Social Fund (ESF) for his Ph.D. grant (SFRH/BD/138149/2018 and COVID/BD/152936/2022). L.P.Silva acknowledges FCT for her Ph.D. grant (SFRH/BD/135976/2018).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationZambom, Aline; Vilas-Boas, Sérgio M.; Silva, Liliana P.; Martins, Mónia A.R.; Ferreira, Olga; Pinho, Simão (2023). The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing. Molecules. ISSN 1420-3049. 28:6, p.1-14pt_PT
dc.identifier.doi10.3390/molecules28062456pt_PT
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10198/29045
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
dc.relationNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
dc.relationPost-combustion gas capture/separation by gas-liquid membrane contactors using non-volatile solvents.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectIonic liquidspt_PT
dc.subjectTerpenespt_PT
dc.subjectFuel processingpt_PT
dc.subjectDeterpenationpt_PT
dc.subjectInverse gas chromatographypt_PT
dc.titleThe role of the anion in imidazolium-based ionic liquids for fuel and terpenes processingpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
oaire.awardTitleNovos Processos de Separação para o Fracionamento e Purificação de Terpenos
oaire.awardTitlePost-combustion gas capture/separation by gas-liquid membrane contactors using non-volatile solvents.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F138149%2F2018/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//COVID%2FBD%2F152936%2F2022/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_CENTRO/SFRH%2FBD%2F135976%2F2018/PT
oaire.citation.endPage14pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMoleculespt_PT
oaire.citation.volume28pt_PT
oaire.fundingStreamPOR_CENTRO
person.familyNameMartins
person.familyNameFerreira
person.familyNamePinho
person.givenNameMónia A. R.
person.givenNameOlga
person.givenNameSimão
person.identifier810882
person.identifier.ciencia-id8117-0EEA-6B8E
person.identifier.ciencia-id9F1D-C75A-4A54
person.identifier.ciencia-id481D-73AD-8D0F
person.identifier.orcid0000-0003-0748-1612
person.identifier.orcid0000-0001-8414-3479
person.identifier.orcid0000-0002-9211-857X
person.identifier.ridM-4567-2013
person.identifier.ridD-4148-2013
person.identifier.scopus-author-id56191802400
person.identifier.scopus-author-id57203083219
person.identifier.scopus-author-id7003570175
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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