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Adsorption Processes Adsorption Isotherms

Adsorption Processes Adsorption is the process of transferring material from a fluid phase to a solid phase. We will analyze the transport process involved in Adsorption by progression in complexity from batch Adsorption , one-dimensional, equilibrium Adsorption on a column, and one-dimensional, non-equilibrium Adsorption . Adsorption Isotherms Adsorption is a separation process in which some materials, (adsorbate) is concentrated from a bulk vapor or liquid phase on to the surface of a porous solid (adsorbent). Usually the amount adsorbed is only a fraction of a monolayer.

The rate of desorption or evaporation is assumed to be proportional to the number of occupied sites. rkevaporation = 11 At equilibrium, the rate of adsorption is equal to the rate of desorption. 2-15 rr kPS kS kPSS kS ... 0.9 1.0 0. 2. 4. 6. 8. 10. K*P Fractional Coverage

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