Question: A tower operating at 1 atm is to be designed to distill 200 kmoles/h (55.6 moles/s) of a binary mixture of 57 mole% benzene and

A tower operating at 1 atm is to be designed to distill 200 kmoles/h (55.6 moles/s) of a binary mixture of 57 mole% benzene and the rest is toluene. A liquid distillate and a liquid bottoms product of 93 mole % and 5 mole % benzene respectively are to be produced. Before entering the column the feed is flash vaporized at 1 atm to produce an equimolal vapor/liquid mixture (Vf/F = Lf/F = 0.5). A reflux ratio 30% above the minimum is specified. Calculate the amount of distillate collected in kmoles/h.

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