TY - JOUR
T1 - Liquid-liquid equilibria for the ternary system (phosphonium based deep eutectic solvent-benzene-hexane) at different temperatures
T2 - A new solvent introduced
AU - Kareem, Mukhtar A.
AU - Mjalli, Farouq S.
AU - Hashim, Mohd Ali
AU - AlNashef, Inas M.
N1 - Funding Information:
This research was funded by the Deanship of Scientific Research at King Saud University through group project No. RGP-VPP-108 and University of Malaya Institute of Research Management and Monitoring research grant number PS112-2009B in collaboration with the engineering faculty in Sultan Qaboos University, Oman.
PY - 2012/1/25
Y1 - 2012/1/25
N2 - In this work we studied the applicability of one ionic liquid analogues namely phosphonium based deep eutectic solvent (DES) in the extraction of aromatic hydrocarbons from aromatic/aliphatic mixtures. Experimental data for liquid-liquid equilibria (LLE) were obtained for various mixtures of (benzene. +. hexane. +. DES) at 27, 35 and 45 °C. Some of the mixtures showed excellent results in terms of aromatic selectivity and distribution ratio compared to what is currently used in industry. Chromatography analysis showed that the ethylene glycol used in forming the deep eutectic solvent was not present in the raffinate layer. This eliminates the step needed for the separation of the solvent. A comparative study of the separation effectiveness of the DES in this work with other reported ionic liquids as well as sulfolane was performed for choosing the best solvent for the intended separation.
AB - In this work we studied the applicability of one ionic liquid analogues namely phosphonium based deep eutectic solvent (DES) in the extraction of aromatic hydrocarbons from aromatic/aliphatic mixtures. Experimental data for liquid-liquid equilibria (LLE) were obtained for various mixtures of (benzene. +. hexane. +. DES) at 27, 35 and 45 °C. Some of the mixtures showed excellent results in terms of aromatic selectivity and distribution ratio compared to what is currently used in industry. Chromatography analysis showed that the ethylene glycol used in forming the deep eutectic solvent was not present in the raffinate layer. This eliminates the step needed for the separation of the solvent. A comparative study of the separation effectiveness of the DES in this work with other reported ionic liquids as well as sulfolane was performed for choosing the best solvent for the intended separation.
KW - Aromatics separation
KW - Deep eutectic solvents
KW - Ionic liquids analogues
KW - Liquid-liquid extraction
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U2 - 10.1016/j.fluid.2011.10.024
DO - 10.1016/j.fluid.2011.10.024
M3 - Article
AN - SCOPUS:83655184687
SN - 0378-3812
VL - 314
SP - 52
EP - 59
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
ER -