1. 45% Benzene with a continuous fractional distillation column having a flow rate of 30,000 kg/h Tu

and a mixture containing 55% toluene, by weight 97% benzene in the upper product and 98% in the lower product

it will be designed to separate to contain toluene. Recovery (reflux) rate, 1 mol of product

it is set to be 3,3 for. Benzene and toluene, an ideal with a relative volatility value of 2,3

it creates a system. Molal latent heat values for benzene and toluene are 7360 and respectively

it is 7960 cal/gmol. The molecular weights for benzene and toluene are 78 and 92 g/mol, respectively.

The feed has a boiling point at 95C at a pressure of 1 atm.

a) Calculate the upper and lower product quantities in mol/h Tu.

b) The ideal number of stages and the stage at which the feed is made for the following three different situations

determine.

i) Liquid at the boiling point of the feed

ii) Feeding liquid at 20C (specific temperature 0.44 cal/gC)

iii) A mixture containing two-thirds of the feed liquid and one-third steam

c) 20 lbf/in2 for heating

if steam with a gauge pressure of (1.36 atm) is used, the heat losses

neglecting and assuming that the recovery (reflux) is a saturated liquid, the above

how much steam is required per hour for each of the three situations?

d) If the cooling water enters the condenser at 30C and leaves at 45C, how many cubic meters per hour

do you need cooling water?