Engineering, 18.02.2021 21:00 michaelortega5808

A steady-state countercurrent staged distillation column is separating ethanol from water. The feed is a 30.0 wt% ethanol, 70.0 wt% water mixture that is a saturated liquid at 1 atm pressure. Flow rate of feed is 10,000 kg/h. The column operates at a pressure of 1 atm. The reflux is returned as a saturated liquid. A reflux ratio of L/D = 3.0 is being used. Bottoms composition is XB = 0.05 (weight fraction ethanol), and distillate composition is xp = 0.80 (weight fraction ethanol). The system has a total condenser and a partial reboiler. The column is well insulated. Use the Lewis method to find the number of equilibrium contacts required if the feed is input on the second stage from the top.

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A steady-state countercurrent staged distillation column is separating ethanol from water. The feed...