1. The Ponchon-Savaret method
2. The McCabe-Thiele method
3. Calculate the theoretical stages needed to separate a 10 mole% ethanol liquid saturated feed into a 80 mole% distillate and a 0.1 mole% bottoms at 1 atmosphere pressure. The reflux ratio is 2 times the minimum reflux ratio. Use the following methods:
o McCabe/Thiele graphical method
o Ponchon/Savarit energy graphical method