Comparative study of the LLE of the quaternary and ternary systems involving benzene, n-octane, n-decane and the ionic liquid [BMpyr][NTf2]

Requejo, Patricia F.; Calvar, Noélia; Domínguez, Ángeles; Gómez, Elena

doi:10.1016/j.jct.2016.02.027

Cited by 21 publications

(18 citation statements)

References 40 publications

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“…In particular, the initial goal was to analyze the impact of the alkyl chain length [2,8,9,[10][11][12][13][14][15]20] on the phase equilibrium behavior; nevertheless, recent studies have also addressed the effect of including functional groups as hydroxyl-, benzyl-, or allyl-, in order to design functionalized ILs for selective separation of aromatic and aliphatic hydrocarbons [5][6][7]. Furthermore, the current trend is towards studying more complex mixtures such as quaternary systems or synthetic gasoline models [21][22][23][24] as well as using binary mixtures of ILs as solvent [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

On the volatility of aromatic hydrocarbons in ionic liquids: Vapor-liquid equilibrium measurements and theoretical analysis

Palomar

Navarro

Larriba

et al. 2018

Journal of Molecular Liquids

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El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription AbstractThe use of ionic liquids (ILs) as solvent in the liquid-liquid extraction of aromatic compounds is one of their most studied applications. Nevertheless, the recovery of the extracted hydrocarbons has been much less investigated, being a required task to complete the global separation process. Taking into account the negligible vapor pressure of the ILs, this step could be easily carried out by flash distillation, which requires the study of vapor-liquid equilibrium (VLE). In order to study this topic deeper, in this work a systematic analysis of the VLE and vapor-liquid-liquid equilibrium (VLLE) data for {aromatic hydrocarbon + IL} binary mixtures was carried out, from both an experimental and computational point of view. For that, new experimental VLE and VLLE data of 24 {toluene + IL} binary mixtures were

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Section: Introductionmentioning

confidence: 99%

On the volatility of aromatic hydrocarbons in ionic liquids: Vapor-liquid equilibrium measurements and theoretical analysis

Palomar

Navarro

Larriba

et al. 2018

Journal of Molecular Liquids

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“…Requejo et al [9][10][11] , while the selectivity for the quaternary system is lower than for the ternary system with decane and higher than for the ternary system with octane [10].…”

Section: Literature Review 21 Quaternary Systems With Two Aliphatic mentioning

confidence: 95%

“…A different influence was found comparing the ternary systems octane + benzene + [ [11]. In that case, both solute distribution coefficients and selectivity are lower for the quaternary system.…”

Section: Literature Review 21 Quaternary Systems With Two Aliphatic mentioning

confidence: 96%

“…With the aim of analysing the influence of more than one aliphatic compound on the extraction of aromatics, liquid-liquid equilibrium data of several quaternary systems have been published [9][10][11][12][13][14].…”

Section: Literature Review 21 Quaternary Systems With Two Aliphatic mentioning

confidence: 99%

“…Some papers related to quaternary or higher systems using sulfolane to extract aromatics from aliphatic compounds can be found in the literature [2][3][4][5][6][7][8], while similar information using ILs as extractant agents is scarce, taking into account the huge number of ILs that can be used [9][10][11][12][13][14][15][16][17][18][19][20][21][22]. It also should be noted that mixtures of ILs or organic solvent + IL can be selected as separation agents [23], greatly increasing the number of systems that should be studied.…”

Section: Introductionmentioning

confidence: 99%

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Extraction of Aromatic Compounds from Their Mixtures with Alkanes: From Ternary to Quaternary (or Higher) Systems

Domínguez¹,

González²,

Requejo³

et al. 2020

Solvents, Ionic Liquids and Solvent Effects

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Ionic liquids have been proposed as separation agents for liquid extraction of aromatic compounds from their mixtures with alkanes, with the aim of improving the separation process and replacing conventional organic solvents. A significant number of experimental liquid-liquid equilibrium data for ternary system alkane + aromatic compound + ionic liquid can be found in literature; however there are few data for quaternary or higher systems involving more than one aliphatic compound, several aromatic compounds or a mixture of ionic liquids as separation agent. These data are also necessary because molecular interactions between the compounds in the mixture can modify the affinity of the solvent for the aromatic compound of interest. In this chapter we review the published data involving more than three components, and we present new liquid-liquid equilibrium data for the quaternary systems heptane + cyclohexane + toluene +1-ethyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide and heptane + cyclohexane + toluene + 1-hexyl-3-methylimidazolium bis{(trifluoromethyl)sulfonyl}imide.

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Effect of Methanol Concentration in the Mixed Solvent Dimethyl Sulfoxide + Methanol in the Extraction of Toluene from Heptane: Experimental Measurements and Thermodynamic Modeling

2021

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Comparative study of the LLE of the quaternary and ternary systems involving benzene, n-octane, n-decane and the ionic liquid [BMpyr][NTf2]

Cited by 21 publications

References 40 publications

On the volatility of aromatic hydrocarbons in ionic liquids: Vapor-liquid equilibrium measurements and theoretical analysis

On the volatility of aromatic hydrocarbons in ionic liquids: Vapor-liquid equilibrium measurements and theoretical analysis

Extraction of Aromatic Compounds from Their Mixtures with Alkanes: From Ternary to Quaternary (or Higher) Systems

Effect of Methanol Concentration in the Mixed Solvent Dimethyl Sulfoxide + Methanol in the Extraction of Toluene from Heptane: Experimental Measurements and Thermodynamic Modeling

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