Question

Q3 An equimolar binary liquid solution of benzene and toluene is to be separated by rectification in a plate column at atmospheric pressure. The feed is 60 mol percent vapor 40 mole percent liquid and flow rate of feed is 300 kmol/h. It is suggested to operate the column at a reflux ratio 1.7 times its minimum value. The top product should contain 95% benzene and 4 % of the benzene in the feed is loss in to the bottom product. The column will be equipped with a total condenser and reboiler. a) Calculate the flow rates of top and bottom products. b) Write the equations of q-line, and enriching and stripping section operating lines. c) Find the number of the ideal plates by using McCabe-Thiele Method. d) Calculate the condenser and reboiler loads (duties) as kW. Molar latent heats of vaporization of both components are the same at 32 300 kJ/k-mol.