Abstract
In this work, the SAFT-VR Mie equation of state is used in conjunction with the Dubinin-Radushkevich-Astakhov (DRA) and Steele potentials, according to the Multicomponent Potential Theory of Adsorption (MPTA), to model the thermodynamic behavior of fluids confined in porous media. The problem specifications are the temperature, volume, and number of moles of each component, yielding a Helmholtz energy-minimization problem. Calculation results show very good agreement with experimental adsorption data for systems of methane, nitrogen, carbon dioxide, ethane, ethylene, and isobutane adsorbed on activated carbon and molecular sieve.
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