Application of the ionic liquid Ammoeng 102 for aromatic/aliphatic hydrocarbon separation

Liquid–liquid equilibria for ternary systems of {cyclohexane+aromatic compounds+1-ethyl-3-methylpyridinium ethylsulfate}

“…This model was not originally developed for systems that involve electrolytes, but nevertheless it has been widely used in the modelling of both LLE and vapour-liquid equilibria (VLE) in a variety of electrolyte systems, usually leading to good correlations for systems containing ILs. Also several authors used this model to describe their measurements of LLE with ILs [3][4][5][6][7][10][11][12][13][14].…”

“…However, these organic solvents are generally toxic, volatile, and flammable, causing harm effect to the environment. Nowadays [2][3][4][5][6][7][8][9][10][11][12][13][14][15], the ionic liquids are an attractive alternative to replace these organic solvents while improving performance and causing less damage to the environment and human health. Nevertheless, there are few publications concerning extraction of aromatic hydrocarbons from mixtures of aromatic and cycloalkanes using ionic liquids [9,10,15].…”

Separation of benzene from alkanes using 1-ethyl-3-methylpyridinium ethylsulfate ionic liquid at several temperatures and atmospheric pressure: Effect of the size of the aliphatic hydrocarbons

“…Nevertheless, LLE data are still quite scarce for systems containing ionic liquids. Currently, there are only a few publications concerning extraction of aromatic hydrocarbons from mixtures of aromatic and aliphatic hydrocarbons using ionic liquids [15][16][17][18][19][20][21][22][23].…”

Measurement and correlation of liquid–liquid equilibria for ternary systems {cyclooctane+aromatic hydrocarbon+1-ethyl-3-methylpyridinium ethylsulfate} at T=298.15K and atmospheric pressure

“…However, in recent years the number of researchers working in this field has increased. Maduro and Aznar [1] studied the separation of aromatics (benzene, toluene, or m-xylene) from aliphatics (nonane, or undecano) using 1-butyl-3-methylimidazolium hexafluorophosphate; Domanska et al studied the effect of the ionic liquid cation on the ternary system {hexane + p-xylene + IL} at T = 298.15 K [6], and the separation of aromatic hydrocarbons from alkanes using an ammonium ionic liquid [7]; Arce et al [8][9][10][11] analyzed the separation of aromatics from alkanes using bis{(trifluoromethyl)sulfonyl}amide ionic liquids as solvents; Abu-Eishah and Dowaidar [12] investigated the separation of cyclohexane form aromatic compounds (benzene, or toluene, or ethylbenzene, or +o-xylene) using 4-methyl-N-butypyridinium tetrafluoroborate ionic liquid as solvent at T = 303.15 K; Wang et al [13] studied the liquid-liquid equilibria for the systems {benzene + cyclohexane + 1-methyl-3-methylimidazolium dimethylphosphate or 1-ethyl-3-methylimidazolium diethylphosphate}; Letcher and Reddy [14] presented a comparative study of two ionic liquids (1-hexyl-3-methylimidazolium tetrafluoroborate, and 1-hexyl-3-methylimidazolium hexafluorophosphate) as solvents in the separation of benzene from alkanes (heptane, dodecane, and hexacane); Pereiro and Rodríguez [15] carried out a investigation about the application of the ionic liquid Ammoeng 102 for aromatic/aliphatic hydrocarbon separation; and, García et al [16,17] reported LLE data for the separation of benzene from hexane using 1-butyl-3-methylimidazolium methylsulfate and 1-ethyl-3-methylimidazolium ethylsulfate ionic liquids at three temperatures and atmospheric pressure.…”