(1) Department of Chemical Engineering, Vanderbilt University, Nashville, TN 37235, USA;(2) Present address: Dept. Eng. Quimica, Univ. Federal do Ceará, Campus do Pici, Bl. 709, Fortaleza, CE, Brasil
Abstract:
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 to observe trends in isosteric heat of adsorption as a function of loading at various temperatures.
