The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing
Main Author: | |
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Publication Date: | 2023 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10198/29045 |
Summary: | Abstract: 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. |
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The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processingIonic liquidsTerpenesFuel processingDeterpenationInverse gas chromatographyAbstract: 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.This 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).MDPIBiblioteca Digital do IPBZambom, AlineVilas-Boas, Sérgio M.Silva, Liliana P.Martins, Mónia A.R.Ferreira, OlgaPinho, Simão2024-01-03T11:05:57Z20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/29045engZambom, 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.1-141420-304910.3390/molecules28062456info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-10T01:19:25Zoai:bibliotecadigital.ipb.pt:10198/29045Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:31:01.413842Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
title |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
spellingShingle |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing Zambom, Aline Ionic liquids Terpenes Fuel processing Deterpenation Inverse gas chromatography |
title_short |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
title_full |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
title_fullStr |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
title_full_unstemmed |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
title_sort |
The role of the anion in imidazolium-based ionic liquids for fuel and terpenes processing |
author |
Zambom, Aline |
author_facet |
Zambom, Aline Vilas-Boas, Sérgio M. Silva, Liliana P. Martins, Mónia A.R. Ferreira, Olga Pinho, Simão |
author_role |
author |
author2 |
Vilas-Boas, Sérgio M. Silva, Liliana P. Martins, Mónia A.R. Ferreira, Olga Pinho, Simão |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Zambom, Aline Vilas-Boas, Sérgio M. Silva, Liliana P. Martins, Mónia A.R. Ferreira, Olga Pinho, Simão |
dc.subject.por.fl_str_mv |
Ionic liquids Terpenes Fuel processing Deterpenation Inverse gas chromatography |
topic |
Ionic liquids Terpenes Fuel processing Deterpenation Inverse gas chromatography |
description |
Abstract: 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. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 2023-01-01T00:00:00Z 2024-01-03T11:05:57Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/29045 |
url |
http://hdl.handle.net/10198/29045 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Zambom, 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.1-14 1420-3049 10.3390/molecules28062456 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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