Question: 2) A distillation column with a total condenser and a partial reboiler is separating ethanol and water at 1.0atm. Feed is 0.32mol fraction ethanol and

2) A distillation column with a total condenser and a partial

2) A distillation column with a total condenser and a partial reboiler is separating ethanol and water at 1.0atm. Feed is 0.32mol fraction ethanol and it enters as a saturated liquid at 100 mol/s on the optimum plate. The distillate product is a saturated liquid with 80mol% ethanol. The condenser removes 5615kW. The bottoms product is 0.05mol fraction ethanol. Assume CMO is valid. (a) Find the number of equilibrium stages for this separation. [6 + PR] (b) Find how much larger the actual reflux ratio, R, used is than Rmin, i.e. R/Rmin. [3] Note: the heats of vaporization of ethanol and water are e=38.58molkJ and w=40.645molkJ

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