Question: = Problem 4: Use the FUG method to determine the reflux ratio required for the distillation in Figure below if N/Nmin = 2.0, the average

 = Problem 4: Use the FUG method to determine the reflux

= Problem 4: Use the FUG method to determine the reflux ratio required for the distillation in Figure below if N/Nmin = 2.0, the average relative volatility = 1.11, and the feed is at the bubble-point temperature at feed stage pressure. Assume that external reflux equals internal reflux at the upper pinch zone. Assume a total condenser and a partial reboiler. Distillate kmol/h Propylene 347.5 Propane 3.5 351.0 Feed Distillation Propylene Propane kmol/h 360 240 Bottoms 600

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