@article{env20221025,
author={{Mfoumou, Charly Mve and Tonda-Mikiela, Pradel and Ngoye, Francis and Belin, Thomas and Mignard, Samuel},
title={Dynamic Adsorption and Desorption of CO<SUB>2</SUB> from Binary Mixtures of CH<SUB>4</SUB> and C<SUB>3</SUB>H<SUB>8</SUB> on X Type Zeolites},
journal={American Journal of Environmental Protection},
volume={10},
number={2},
pages={83--90},
year={2022},
url={http://pubs.sciepub.com/env/10/2/5},
issn={2328-7233},
abstract={Dynamic adsorption and desorption of carbon dioxide (CO<SUB>2</SUB>) from binary gas mixtures (CO<SUB>2</SUB>/CH<SUB>4</SUB> and CO<SUB>2</SUB>/C<SUB>3</SUB>H<SUB>8</SUB>) was carried out on BaX and NaX zeolites in order to study the influence of methane and propane on the CO<SUB>2</SUB> adsorption capacities and on the preferential adsorption sites of CO<SUB>2</SUB>. The adsorption proprieties of CH<SUB>4</SUB> and C<SUB>3</SUB>H<SUB>8</SUB> molecules on the adsorbents were also evaluated. This study enabled to conclude that methane has no affinity with NaX and BaX zeolites in our experimental conditions. On the other hand, whatever the adsorbent studied, the results show favorable adsorption sites to trapping of propane. The adsorption capacities of propane at saturation on NaX and BaX zeolites are 0.035 and 0.075 mmol g<SUP>-1</SUP> respectively. However, BaX zeolite is the adsorbent which presents more affinity for propane with the strongest propane/zeolite interactions. The study of CO<SUB>2</SUB> adsorption in presence CH<SUB>4</SUB> and C<SUB>3</SUB>H<SUB>8</SUB> on the NaX zeolite indicates a decrease of the CO<SUB>2</SUB>/cation interactions and of adsorbed CO<SUB>2</SUB> amounts at saturation. The capacities loss are about of 17% and 30% when carbon dioxide adsorption is carried out in binary mixture CO<SUB>2</SUB>/CH<SUB>4</SUB> and CO<SUB>2</SUB>/C<SUB>3</SUB>H<SUB>8</SUB> respectively. In addition, a loss of preferential adsorption sites of carbon dioxide between 443 - 483 K is also observable in the presence of CH<SUB>4</SUB> on NaX zeolite. However on BaX zeolite, the presence of CH<SUB>4</SUB> and C<SUB>3</SUB>H<SUB>8</SUB> improves the accumulation of CO<SUB>2</SUB> in the porosity. The capacities of CO<SUB>2</SUB> adsorption are improved about of 18% whatever the gas mixture studied. Moreover, contrary to NaX zeolite, a conservation of preferential adsorption sites of CO<SUB>2</SUB> on BaX zeolite in the temperature range studied (295 - 623 K) is visible. It seems that the presence of methane and propane doesnĄ¯t affect the adsorption proprieties of carbon dioxide on BaX zeolite in our experimental conditions.},
doi={10.12691/env-10-2-5}
publisher={Science and Education Publishing}
}