We have a mixture of 90% acetone with water. We would like to recover some of the acetone in an equilibrium flash distillation process. The flash will take place at 40 C, 0.4 atm.

a) Label the diagram and determine the DOF analysis

b) what is the bubble point pressure at 40 C?

c) what is the dew point pressure at 40 C?

d) Verify that 0.4 atm is between the bubble point and dew point pressures. What is the fractions of mols in the vapor stream (V). What is the composition of vapor and liquid streams?

e) what % of the water is removed from the feed stream?

f) what is the % of acetone in the vapor / % of acetone in the liquid?

g) what is the bubble point pressure of the liquid stream leaving the column?