Question: A distillation column is separating ethanol and water at a pressure of 1 atmosphere. The feed is 45 mole % ethanol and the feed rate

A distillation column is separating ethanol and water at a pressure of 1 atmosphere. The feed is 45 mole % ethanol and the feed rate is 110kg moles/hr. The feed is a super-heated vapor that vaporizes 1 mole of liquid in the column for every 10 moles of feed. The distillate product is 80 mole % ethanol. Reflux is a saturated liquid and L.DD=3.5. The bottoms composition is 2mole% ethanol. The column has a total condenser and a partial reboiler. Find the optimum feed plate location and the total number of equilibrium stages required

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