Intensified extractive distillation process for the separation of n-heptane-toluene mixture using the ionic liquid 1-Ethyl-4-methylpyridinium Bis(trifluoromethanesulfonyl)imide

Abstract
Ionic liquids (ILs) have emerged in recent years as promising green solvents to replace conventional solvents. This work aims to the separation of n-heptane-toluene mixture by extractive distillation using ionic liquid (IL) to enhance the performance of the process. The ionic liquid [4EMPy] [NTF₂], "1-ethyl-4-methylpyridiniumBis(trifluoromethanesulfonyl)imide”, was proposed due to its high selectivity compared to the conventional solvent "Sulfolane" ...