We repeat the previous design $(100$ kmol$/$h feed at $80$ degrees C with $36$ mole$\%$ water requiring $90\%$ acetone and $98$ mol$\%$ wate as the two product streams$).$ The reflux ratio is still the same $($ r$=1)$ but we draw a $10$ kmol$/$hr saturated liquid side stream product between the feed and bottoms at the right stage so the concentration is $10$ mol$\%$ acetone.