McCabe-Thiele diagrams for model distillation of acetone, ethanol, and isopropanol generated using ChemSep software. The simulations assume an initial water concentration of 20 mass% in each mixture. X axis represents the molar concentration of the solvent in the liquid phase, Y, the molar concentration of the solvent in the vapours phase. The vapour/liquid equilibrium diagram of MEK corresponds to experimental data obtained by Cho et al. (1983).