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Adsorption equilibria of methane, ethane, and n-butane on a high surface area activated carbon prepared from Brazilian coconut shells is examined in this study. The material shows high capacities for the alkanes tested. A group-contribution theory is used to predict adsorption isotherms for all three components with very good accuracy employing one set of model parameters. The theory is also used...
This paper develops a simplified form of the group-contribution theory of Russell and LeVan (Chem. Eng. Sci. 51 (1996) 4025) for the prediction of adsorption equilibria of n-alkanes on activated carbon. Molecules are separated into elements or groups, and adsorbate group-adsorbent interactions are the determining factor for adsorption equilibrium. The adsorbent surface is considered to be heterogeneous...
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