From the phenomenological point of view, there is a certain distribution of the adsorbate on the mechanical separation between the solid and the gassing phases. This may be expressed, for example, as Q, the moles adsorbed per gram of solid versus the pressure P. The distribution, in general, is temperature dependent, so complete empirical description would be in terms of an adsorption function Q=g(P,T). In this paper, adsorption isotherms of carbon dioxide on activated carbon at temperature ranging from 277.4K to 327.2K are approximated by a general formulation from the numerical analysis theory. Keywords: Adsorption, Isotherm, Numerical analysis.
 

Oshiro, S.M.; Roma, A.M.; Fabris, A.E.; Rocha, M.S.; Matsui, A.A.M.; Suárez-Iha, M.E.V.; Iha, K.: Um método numérico aplicado à adsorção de CO2 em carvão ativado a várias temperaturas, Anais da Associação Brasileira de Química, 46(2), 170-173, 1998. Portuguese.