Alkylsulfate-based ionic liquids to separate azeotropic mixtures

Ana B. Pereiro, Francisco Javier Deive, , Jose Manuel Esperanca, Ana Rodriguez

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The knowledge of liquid-liquid equilibria (LLE) of the ternary systems (hexane or heptane + ethanol + 1-ethyl-3-methylimidazolium ethylsulfate (EMIM EtSO4)) is essential for the separation of alkanes from their azeotropic mixtures with ethanol. The experimental LLE have been determined at 298.15 K and atmospheric pressure. Experimental LLE are correlated using NRTL equation. The solvent capacity of the IL is compared with others aiming to analyze the efficiency of these molten salts used as entrainers. The extraction processes with this IL are simulated using conventional software. A comparison of the alkylsulfate-based IL's ability for the extraction process, determined from the simulation results, is enclosed.
Original languageEnglish
Pages (from-to)13-17
Number of pages5
JournalFluid Phase Equilibria
Volume291
Issue number1
DOIs
Publication statusPublished - 25 Apr 2010

Fingerprint

Ionic Liquids
Ionic liquids
Liquids
liquids
Ethanol
ethyl alcohol
Heptanes
Alkanes
molten salts
Hexanes
Heptane
Ternary systems
heptanes
ternary systems
Hexane
Paraffins
alkanes
Atmospheric pressure
Molten materials
atmospheric pressure

Keywords

  • Extraction
  • Liquid-liquid equilibria
  • Azeotropic mixtures
  • EMIM EtSO4
  • Ionic liquids

Cite this

Pereiro, Ana B. ; Deive, , Francisco Javier ; Esperanca, Jose Manuel ; Rodriguez, Ana. / Alkylsulfate-based ionic liquids to separate azeotropic mixtures. In: Fluid Phase Equilibria. 2010 ; Vol. 291, No. 1. pp. 13-17.
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abstract = "The knowledge of liquid-liquid equilibria (LLE) of the ternary systems (hexane or heptane + ethanol + 1-ethyl-3-methylimidazolium ethylsulfate (EMIM EtSO4)) is essential for the separation of alkanes from their azeotropic mixtures with ethanol. The experimental LLE have been determined at 298.15 K and atmospheric pressure. Experimental LLE are correlated using NRTL equation. The solvent capacity of the IL is compared with others aiming to analyze the efficiency of these molten salts used as entrainers. The extraction processes with this IL are simulated using conventional software. A comparison of the alkylsulfate-based IL's ability for the extraction process, determined from the simulation results, is enclosed.",
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Alkylsulfate-based ionic liquids to separate azeotropic mixtures. / Pereiro, Ana B.; Deive, , Francisco Javier; Esperanca, Jose Manuel; Rodriguez, Ana.

In: Fluid Phase Equilibria, Vol. 291, No. 1, 25.04.2010, p. 13-17.

Research output: Contribution to journalArticle

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T1 - Alkylsulfate-based ionic liquids to separate azeotropic mixtures

AU - Pereiro, Ana B.

AU - Deive, , Francisco Javier

AU - Esperanca, Jose Manuel

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