The multiple equilibrium analysis quantitative prediction of single and multi-component adsorption isotherms on carbonaceous and zeolitic solids

The previously introduced multiple equilibrium analysis (MEA), which produces equilibrium constants ( K i ), capacities ( n i ), and thermodynamic parameters (enthalpies, Δ H i , and entropies, Δ S i ) of adsorption for each process, has been used to predict adsorption isotherms for N 2 , CO, CH 4 , C 2 H 6 , and SF 6 on one zeolitic (HZSM-5) and five carbonaceous (A-572, A-563, A-600, F-300, and BPL) solids. The adsorption of CO is best reproduced on each of the solids. In general, the adsorption of N 2 has been accurately predicted, while CH 4 and C 2 H 6 are underpredicted and SF 6 is overpredicted. Previously reported high-pressure data for the adsorption of CH 4 on BPL was very accurately predicted. The application of the MEA prediction of adsorption behavior has quite a potential for a variety of applications. Adsorbents can be used for catalyst supports, gas separation, respiratory protection, environmental applications, and even have the potential for fuel storage capabilities. The prediction of adsorption performance will lead to a greater understanding of the fundamental interactions involved in these systems and will help create new and better systems.