Abstract
In this work, we report new experimental data of pure and binary adsorption equilibria of carbon dioxide and methane on the activated carbon RB2 at 273 and 298 K. The pressure range studied were 0–3.5 MPa for pure gases and 0–0.1 MPa for mixtures. The combination of the generalized Dubinin model to describe the pure CO2 and CH4 isotherms with the IAST (Ideal Adsorbed Solution Theory) for the mixtures provide a method for the calculation of the binary adsorption equilibria. This formulation predicts with acceptable accuracy the binary adsorption data and can easily be integrated in general dynamic simulation of PSA (pressure swing adsorption process) adsorption columns. It involves only three parameters, independent of the temperature, and directly determined with only one adsorption isotherm of CO2.
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Goetz, V., Pupier, O. & Guillot, A. Carbon dioxide-methane mixture adsorption on activated carbon. Adsorption 12, 55–63 (2006). https://doi.org/10.1007/s10450-006-0138-z
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DOI: https://doi.org/10.1007/s10450-006-0138-z