**Acknowledgements**

**Figure 8.** Concentration profiles (mass fractions) for the ED of toluene-MCH using (a) NMP and (b) [hmim][TCB] as

In **Figure 9a** it can be clearly observed the influence of the viscosity of [hmim][TCB] due to the high S/F ratios. While the separation of the toluene-methylcyclohexane mixture with NMP show low viscosities, [hmim][TCB] exhibit high values reaching the 4 [cP] in the rectifying section leading to a decrease in mass transfer efficiency as observed in **Figure 9b**. The impact of the liquid phase resistance on the mass transfer efficiency is significant even though the use of the first solvent produces much higher relative volatilities. The conclusions made in this

**Figure 7.** Ternary diagram for the system toluene-methylcylcohexane-[hmim][TCB] [38].

118 Heat and Mass Transfer - Advances in Modelling and Experimental Study for Industrial Applications

solvents. For cases 1 and 2 [38].

Project Erasmus Mundus Chile, Project FONDECYT 11150417 and Project RC-130006-CILIS granted by Fondo de Innovación para la Competitividad, del Ministerio de Economía, Fomento y Turismo, Chile are kindly acknowledged for funding this book chapter.

Referenced tables and figures were taken from Computer & Chemical Engineering Journal and from Separation & Purification Technology Journal.
