An aqueous solution containing 2 mole percent of a volatile organic is to be stripped with steam. This aqueous solution is fed to the top of a packed column and steam is fed to the bottom. Ninety-five...

An aqueous solution containing 2 mole percent of a volatile organic is to be stripped with steam. This aqueous solution is fed to the top of a packed column and steam is fed to the bottom. Ninety-five percent of the entering organic is to be stripped from the water solution by the steam. The equilibrium relation for this situation is given by

In actual operation L/G remains approximately constant

(a) Plot the equilibrium line. Determine the maximum value of L/G which is possible for column operation.

(b) Using the actual operating value of WG which is equal to 0.5, plot the operating line. Find the outlet concentration y₁
for this case. Write the algebraic equation for the operating line.

(c) Find the number of overall liquid phase transfer units based on the mole fraction. Can you find this analytically?

(d) Given that K_x
has been found experimentally to be 20 lbmol/h ft³
for the above conditions, find n_oL
for a liquid rate of 500 lbmol/h ft²
and determine the height of the packed section.