using both lewis method with equation and mccabe-thiele graph

3. We are separating a feed of 50mol ethanol (E) and 50mol% propanol (P) that is a saturated vapor and has a feed rate F=600mole/hr. The design requirements and other information are: - distillate composition is 99 mol\% ethanol \& bottoms composition is 10mol% ethanol - a partial reboiler, which acts as an equilibrium contacting stage, and a total condenser are used - reflux is a saturated liquid - constant molal overflow (CMO) is assumed to be valid - the system has a constant relative volatility 6r=2.1 where ethanol is the most volatile component - boilup ratio B=3.0 Find the liquid composition leaving the second stage above the reboiler Hint: As seen in Figure 4-2C from Wankat, stage \# " N " is the bottom stage or plate in the column and is the first stage above the reboiler. Solve this problem by 2 methods: - using the Lewis method but, instead of using a yx equilibrium plot, you use an equ equilibrium relation between y and x - graphically using a McCabe-Thiele diagram plotted using EP=2.1