A packed tower is used to purify a gas containing 4 mole % of H2S. The total inlet gas flow to the tower is 75 kmol/h and the total inlet pure solvent flow to be used to absorb the H2S is 95 kmol /h. The gas outlet has to have a concentration of 1 % H2S.The process is to operate isothermally at 300 K and a total pressure of 101.3 kPa.
a)Derive the operating line equation.
b)Calculate the concentration of liquid solution leaving the column as mass percent given that mol wt of solvent is 24 kg/kmole, mol wt of H2S is 34 kg/kmole
c)Calculate the percentage recovery of Hydrogen Sulphide