Application of deep eutectic solvents for the separation of aliphatics and aromatics

M. M. Sarwono, M. K.O. Hadj-Kali, I. M. Alnashef

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Separation of aromatics from aliphatics is challenging because of the close range of their boiling points and the formation of several combinations of azeotropes. Until now, no feasible separation process is available for aromatic concentrations below 20 wt%. In this work, we have investigated the possibility of using selected Deep Eutectic Solvents (DESs) for the liquid-liquid extraction of aromatics. DESs have emerged as green solvents that may offer several industrial alternatives. The DESs used in this work were synthesized from ammonium salt with ethylene glycol, lactic acid and sulfolane as Hydrogen Bond Donor (HBD). Equilibrium data for the ternary system consisting of ethylbenzene and n-octane with all DESs were measured at 25°C and atmospheric pressure. The results showed comparable distribution ratio and selectivity with commercial solvents. The absence of the HBD in the hydrocarbon layer, means the reduction of the number of separation stages. In addition, the Non-Random Two Liquid (NRTL) model was successfully used to correlate the experimental tie-lines and to calculate the phase compositions of the ternary systems.

Original languageBritish English
Title of host publicationProceedings of 2013 International Conference on Technology, Informatics, Management, Engineering and Environment, TIME-E 2013
Pages48-53
Number of pages6
DOIs
StatePublished - 2013
Event2013 International Conference on Technology, Informatics, Management, Engineering and Environment, TIME-E 2013 - Bandung, Indonesia
Duration: 23 Jun 201326 Jun 2013

Publication series

NameProceedings of 2013 International Conference on Technology, Informatics, Management, Engineering and Environment, TIME-E 2013

Conference

Conference2013 International Conference on Technology, Informatics, Management, Engineering and Environment, TIME-E 2013
Country/TerritoryIndonesia
CityBandung
Period23/06/1326/06/13

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