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We are to design a distillation column operating at atmospheric pressure to separate a binary mixture A & B. The vapour pressure data is given
We are to design a distillation column operating at atmospheric pressure to separate a binary mixture A & B. The vapour pressure data is given in the Table below. A 100 kmol/h of a feed mixture containing 40 mol% of A and 60 mol% B at 98 C is to be separated in a column in such a way that 90% of A is recovered as a top product with a purity of 95%. The column is operating at 1.4xRmin. The unit operates with a total condenser and a partial reboiler. The stages can be assumed to be 100% efficient. The average latent heat of the mixture can be assumed to be 30 kJ/mol and is invariant with composition. 5. What are the heat duties of the condenser and reboiler in kW? [5 marks] 6. Calculate the temperatures at which the top and bottom product leave the unit. [5 marks]
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