Question: A distillation column is separating a feed that is 40 mol% methanol and 60 mol% water. The two-phase feed is 60% liquid. Distillate product should

A distillation column is separating a feed that is 40 mol% methanol and 60 mol% water. The two-phase feed is 60% liquid. Distillate product should be 92 mol% methanol, and bottoms 4 mol% methanol. A total reboiler and a total condenser are used. Reflux is a saturated liquid. Operation is at 101.3 kPa. Assume CMO, and use L/D = 0.9. Under these conditions HG = 1.3 feet and HL = 0.8 feet in both the enriching and stripping sections. Determine the required heights of both the enriching and stripping sections. Equilibrium data are given in the below table

Methanol Liquid Methanol Vapor Temp., °C 0 2.0 4.0 6.0 8.0 10.0 15.0 20.0 30.0 40.0 50.0 60.0 70.0 80.0 90.0 95.0 100.0 0 13.

Methanol Liquid Methanol Vapor Temp., "C 100 2.0 13.4 96.4 4.0 23.0 93.5 6.0 30.4 91.2 8.0 36.5 89.3 10.0 41.8 87.7 15.0 51.7 84.4 20.0 57.9 81.7 30.0 66.5 78.0 40.0 72.9 75.3 50.0 77.9 73.1 60.0 82.5 71.2 70.0 87.0 69.3 80.0 91.5 67.6 90.0 95.8 66.0 95.0 97.9 65.0 100.0 100.0 64.5

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