Absorption column system A solute (referred as “A”) must be removed from a stream of inert gas in an absorption column. The gas enters the column at a flow rate of 200 mol/h and contains 25% of “A”....

•         Absorption column system

1.       A solute (referred as “A”) must be removed from a stream of inert gas in an absorption column. The gas enters the column at a flow rate of 200 mol/h and contains 25% of “A”. The solvent enters the column at a flow rate of 800 mol/h and is initially free of “A”. The liquid output current contains 5% of “A”. Assuming that the other components of the gas are insoluble in the liquid and considering the liquid non-volatile, calculate:


2.     The concentration of “A” in the output gas


3.     The number of stages

Data: The thermodynamic equilibrium curve is given by: