Question: Problem 3 (15 points): A distillation column receives a feed that is 40 mole %i butane and 60 mole % i-pentane. Feed is saturated liquid

Problem 3 (15 points): A distillation column receives a feed that

Problem 3 (15 points): A distillation column receives a feed that is 40 mole %i butane and 60 mole % i-pentane. Feed is saturated liquid at 1,000lbmol/hr. The column is at 14.7 psia. A distillate that is 95 mole \% i-butane is desired. A total condenser is used. Reflux is a saturated liquid. The external reflux ratio is L0/D =2.3 Bottoms from the partial reboiler is 9 mole \% i-butane. Determine the number of equilibrium trays in the stripping section and the vapor composition leaving the reboiler and the last two trays. Equilibrium K values for light hydrocarbon systems

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