I HAVE ASKED THIS QUESTION FOR SEVERAL TIMES PLEASE ANSWER IF YOU KNOW THE CORRECT SOLUTION ON THE PAPER. ESPECIALLY PLEASE INDICATE WHERE TO USE THE 50% STEAM INFORMATION.

Flash (equilibrium) distillation is applied at 1 atm to the mixture containing 70mol% benzene (A), 30mol% toluene (B) with a flow rate of 100mol/h where 50% is steam. The bottom product (saturated liquid) from the flash distillation column will be distilled again in a multistage continuous column. The reflux ratio in the column is 2.2 . Since it is desired to have 96mol% benzene in the top product and 5mol% benzene in the bottom product calculate the followings; a) Flow rates and compositions of liquid and vapor products leaving the flash distillation column b) Flow rates of the top and bottom products leaving the multistage column c) Minimum reflux ratio