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A distillation column with a total condenser and a partial reboiler is separating acetone from ethanol. A desired distillate and bottom composition are x D

A distillation column with a total condenser and a partial reboiler is separating acetone from ethanol. A desired distillate and bottom composition are xD=0.9 and xB=0.13, respectively. Under constant overflow assumptions, operating conditions are LV=0.8, and VB=1. The feed composition is ZF=0.3(all concentrations are mole
fraction of more volatile component).
Phase equilibrium data for acetone and ethanol at 1atm are given below.
Determine:
2.1. The total number of stages.
2.2. The optimum feed plate location.
2.3. Required q-value of the feed.
2.4. The composition of the liquid leaving the 5thstage.
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