Separation of Hydrocarbons by Means of Liquid-Liquid Extraction with Deep Eutectic Solvents |
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Authors: | Aleksandra Sander Marko Rogošić Anamarija Slivar Barbara Žuteg |
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Affiliation: | University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia |
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Abstract: | Liquid-liquid equilibria for six ternary systems with choline chloride urea or choline chloride glycerol (molar ratio, 1:2) as selective solvent were experimentally determined at atmospheric pressure and 25°C. Equilibrium data were presented with tie lines. Extraction experiments with three-component systems were performed. The suitability of deep eutectic solvents for the separation of pyridine and toluene from n-hexane, and n-butanol from toluene was evaluated in terms of properties of solvents, solute distribution ratio, and extraction efficiency. Choline chloride glycerol has a better potential for separation of pyridine from its mixture with n-hexane. The equilibrium data were well described with the NRTL model. |
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Keywords: | Deep eutectic solvents liquid-liquid equilibria pyridine toluene |
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