Gas—liquid mass transfer with parallel reversible reactions—III. Absorption of CO2 into solutions of blends of amines

An earlier developed numerical method is applied to the absorption of CO2 into solutions of blends of amines. Other experimental results are evaluated with the numerical model. It is shown that a rigorous numerical solution of the differential equations describing the mass transfer gives more insight into the actual process than analytical approximations based on a reduction of the number of reactions by neglecting or lumping reactions.