Abstract
Abstract A new equation describing the adsorption of vapors on microporous adsorbents is presented. This equation is based on the Ono–Kondo model for adsorption in slit-like pores. Results are compared with experimental data for nitrogen on activated carbon over the range of pressures from 0.3 Pa to 0.133 MPa. It is shown that this new equation has several advantages over the widely used Dubinin–Radushkevich (DR) isotherm. In particular, this new equation gives the correct limit of Henry’s law at low concentrations and is more general than the DR equation because it is applicable to gases at supercritical conditions.
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