Gas—liquid mass transfer with parallel reversible reactions—II. Absorption of CO2 into amine-promoted carbonate solutions

An earlier developed numerical method is applied to the absorption of CO2 into amine-promoted carbonate solutions. 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 and numerical approximations based on a reduction of the number of reactions by neglecting or lumping reactions.