Investigating the non-idealities in adsorption of CO2-bearing mixtures in cation-exchanged zeolites

Cation-exchanged zeolites have significant potential for capture of CO2 from a wide variety of mixtures containing N2, H2, alkanes and alkenes. The strong coulombic interactions of CO2 with extra-framework cations result in strong binding and selective capture. Published experimental data on mixture adsorption indicate that the Ideal Adsorbed Solution Theory (IAST) fails to provide accurate estimates of mixture adsorption equilibrium. The...