Adsorbate mass transfer into porous adsorbents - A practical viewpoint

A practical perspective of the complex and extensive subject of adsorbate mass transfer into porous adsorbents, which is important for design of adsorptive processes for separation of fluid (gas or liquid) mixtures, is given. The state of the art for the subject may not allow reliable a priori estimation of the adsorbate mass transfer coefficients for practical adsorbents and experimental measurement of these variables may generally be needed for each specific system of interest. The Linear Driving Force (LDF) model of adsorbate mass transport may be adequate for most practical systems of interest. The LDF model is compatible with the Gibbsian surface excess frame - work of adsorption and that may have been inadvertently used in the past works.