Phase equilibria study of binary systems comprising an (ionic liquid+hydrocarbon)

Domańska, Urszula; Roguszewska, Marlena; Królikowski, Marek; Ramjugernath, Deresh; Naidoo, Paramespri

doi:10.1016/j.jct.2014.12.005

Cited by 8 publications

(4 citation statements)

References 30 publications

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“…Moreover, as the raffinate of desulfurization systems is mainly composed of aliphatic and aromatic hydrocarbons, the solubility of IL in fuel oil can also be evaluated through the solubility of IL in such model fuel hydrocarbons. Domańska et al carried out several studies on the phase equilibria of {IL + aromatic/aliphatic hydrocarbons}, which validate the presence of ILs in hydrocarbons (particularly in aromatic hydrocarbons) [19][20][21][22][23][24][25]. Similar experimental observations were also found by other researchers [26][27][28][29].…”

Section: Introductionsupporting

confidence: 64%

Solubility of imidazolium-based ionic liquids in model fuel hydrocarbons: A COSMO-RS and experimental study

Song

Zeng

Zhang

et al. 2016

Journal of Molecular Liquids

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When applying ionic liquids (ILs) in extractive and oxidative desulfurization of fuel oils, the potential solubility of IL in fuel phase is an important concern whereas research particularly on this issue is still scarce. In this work, COSMO-RS was first employed to predict the solubilities of 220 imidazolium-based ILs (11 cations and 20 anions) in 7 model fuel hydrocarbons (namely, n-hexane, n-heptane, n-octane, i-octane, cyclohexane, benzene and toluene), which cover different characters of ILs and hydrocarbons. To understand the effect of IL and hydrocarbon on the IL-in-hydrocarbon solubility, different types of molecular interactions between IL and hydrocarbon were further analyzed from COSMO-RS point of view. Finally, the solubilities of 5 representative ILs in the studied hydrocarbons were experimentally determined by nitrogen analyzer, demonstrating the good qualitative and acceptable quantitative ability of COSMO-RS for predicting IL-in-hydrocarbon solubilities.

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Section: Introductionsupporting

confidence: 64%

Solubility of imidazolium-based ionic liquids in model fuel hydrocarbons: A COSMO-RS and experimental study

Song

Zeng

Zhang

et al. 2016

Journal of Molecular Liquids

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“…Generally speaking, the physicochemical properties of most ILs are strongly dependent on the type of cation and anion, while very small changes in the structure of IL can drastically affect the mutual solubility with other solvents including ILs. − In most cases, the mutual solubility increases with an increase in the alkyl chain length attached on the cation in nonaqueous solutions. In many mixtures, the observations of USCT were limited by the boiling temperature of the solvent.…”

Section: Thermomorphic Systems Based On Ionic Liquids (Ils)mentioning

confidence: 99%

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

et al. 2017

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Temperature-responsive ionic liquids (ILs), their fundanmental behaviors, and catalytic applications were introduced, especially the concepts of upper critical solution temperature (UCST) and lower critical solution temperature (LCST). It is described that, during a catalytic reaction, they form a homogeneous mixture with the reactants and products at reaction temperature but separate from them afterward at ambient conditions. It is shown that this behavior offers an effective alternative approach to overcome gas/liquid-solid interface mass transfer limitations in many catalytic transformations. It should be noted that IL-based thermomorphic systems are rarely elaborated until now, especially in the field of catalytic applications. The aim of this article is to provide a comprehensive review about thermomorphic mixtures of an IL with HO and/or organic compounds. Special focus is laid on their temperature dependence concerning UCST and LCST behavior, including systems with conventional ILs, metal-containing ILs, polymerized ILs, as well as the thermomorphic behavior induced via host-guest complexation. A wide range of applications using thermoregulated IL systems in chemical catalytic reactions as well as enzymatic catalysis were also demonstrated in detail. The conclusion is drawn that, due to their highly attractive behavior, thermoregulated ILs have already and will find more applications, not only in catalysis but also in other areas.

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“…A database of experimental binary liquid–liquid equilibria (LLE) data of different ILs with a broad range of hydrocarbons has been reported. By inspection of the literature available in the Scopus database, most of the references (25) are related to mixtures containing imidazolium-based ILs, while scarce publications about the phase behavior of binary mixtures with ILs based on other cations such as ammonium (3), phosphonium (3), pyridinium (7), pyrrolidinium (6), or quinolinium (7) have been found. − Because of the large number of {aromatic hydrocarbon (1) + ionic liquid (2)} potential mixtures, new solubility studies are needed since the solubility of aromatic compounds in the ILs affects their use as extraction media.…”

Section: Introductionmentioning

confidence: 99%

Mutual Solubility of Aromatic Hydrocarbons in Pyrrolidinium and Ammonium-Based Ionic Liquids and Its Modeling Using the Cubic-Plus-Association (CPA) Equation of State

2017

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In this work, the mutual solubility of 30 binary systems {aromatic hydrocarbon (1) + ionic liquid (2)} involving benzene, toluene, ethylbenzene, o-xylene, m-xylene, and p-xylene as aromatics and the ionic liquids, 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyland tributylmethylammonium bis(trifluoromethylsulfonyl)imide, [N 4441 ][NTf 2 ], were determined in the temperature range of T = (293.15 to 333.15) K at p = 0.1 MPa. The influence of the temperature and the structural characteristics of the aromatic hydrocarbons as well as the effect of the structure of the ionic liquids on the phase behavior was analyzed. A comparison between the experimental LLE of the binary systems presented in this work and those found in literature was also carried out. Finally, all the binary systems were satisfactorily modeled using the Cubic-Plus-Association (CPA) Equation of State (EoS).

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Phase equilibria study of binary systems comprising an (ionic liquid+hydrocarbon)

Cited by 8 publications

References 30 publications

Solubility of imidazolium-based ionic liquids in model fuel hydrocarbons: A COSMO-RS and experimental study

Solubility of imidazolium-based ionic liquids in model fuel hydrocarbons: A COSMO-RS and experimental study

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Mutual Solubility of Aromatic Hydrocarbons in Pyrrolidinium and Ammonium-Based Ionic Liquids and Its Modeling Using the Cubic-Plus-Association (CPA) Equation of State

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