Equilibrium Modeling of Carbon Dioxide Adsorption on Zeolites

High pressure adsorption of carbon dioxide on zeolite 13X was investigated in the pressure range (0 to 4) Mpa and temperatures 298, 308 and 323K. The data fitting is accomplished with the Toth, UNILAN, Dubinin-Astakhov and virial adsorption models which are generally used for micro porous adsorbents such as zeolites. Comparison with experimental data from the literature indicated that the virial model would best determine results. These results may be partly attributed to the flexibility of the virial model which can accommodate as many constants as the data warrants.

Authors:

• Alireza Behvandi
• Somayeh Tourani

Keywords:

• adsorption models
• zeolite
• carbon dioxide

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