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A distillation system with a still pot plus a column with one equilibrium stage is used to batch distill 1 . 0 kmol of a

A distillation system with a still pot plus a column with one equilibrium stage is used to batch distill 1.0kmol of a 57.0 mol% methanol and 43.0 mol% water feed. A total condenser is used. The final bottoms concentration is 15.0 mol% methanol. Pressure is 101.3kPa. Reflux is a saturated liquid, and L0D=1.85. The equilibrium curve is in Fig. 1. Find Wfinal,Dtotal, and xD,avg..
Fig. 1 y vs. x diagram for methanol-water at 101.3kPa.
part B
4.0 kmoles of a feed that is 0.60 mole fraction acetone and 0.40 mole fraction ethanol is batch distilled in a system with a still pot (an equilibrium contact), a column that acts as one equilibrium stage (total two equilibrium contacts), a total condenser, and reflux to the column. p=1.0atm, the reflux ratio is L0D=1.0,CMO is valid, and xw, fin =0.20. The equilibrium curve is in Fig. 2. Find Wfinal,Dtotal, and xD,avg.
Fig. 2 y vs.x diagram for ethanol-water at 1 atm.
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