Chemical engineering

Determine the number of theoretical stages required and the optimal locations for the feed and liquid side stream for the distillation process shown in Figure 2, where M is methanol and Eis ethanol. The equilibrium curve for the methanol-ethanol system at latm is provided. Assume the pinch region occurs at the feed stage (perform calculations to verify the assumption). Distillate L/D = 1.2 (L/D) min 96 mol% M 25 mol% vaporized 1 atm M E kgmol/h 75 25 100 Liquid side stream 15 kgmol/h 80 mol% E w Bottoms 95 mol% E