Question: 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

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 If one drop of liquid in the reboiler is withdrawn and analyzed, predict $\mathrm{x}_{\mathrm{B}}$.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.

A distillation column with a total condenser is separating a feed that

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

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