A distillation column is separating acetone and ethanol. The column effectively has six equilibrium stages plus a partial reboiler. Feed is a two-phase feed that is \(40 \%\) liquid and \(75 \mathrm{~mol} \%\) acetone. Feed rate is \(1000 \mathrm{kmol} / \mathrm{h}\), and the feed stage is fourth from the top. The column is now operating at a steady state with the bottoms flow valve shut off. However, a distillate product is drawn off, and the vapor is boiled up in the reboiler. \(\mathrm{L}_{0} / \mathrm{D}=2\). Reflux is a saturated liquid. CMO can be assumed. \(\mathrm{p}=1 \mathrm{~atm}\). VLE data are in Problem 4.D7. Find the distillate composition. If one drop of liquid in the reboiler is withdrawn and analyzed, predict \(\mathrm{x}_{\mathrm{B}}\).

Data From Problem 4.D7.

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A distillation column with a total condenser is separating a feed that is 30 mol% acetone from ethanol. Distillate xD = 0.90, and bottoms xp = 0.13, both mole fractions acetone. Assume CMO is valid. L/V = 0.8. Boilup ratio is