We have dealt with the analysis of a zeolite pellet for the case of linear isotherm and the case of irreversible isotherm. These two isotherms represent the two extremes of the nonlinearity of the adsorption isotherm. In this section we will deal with the case of nonlinear isotherm and to make the formulation general we also add to it the heat balance equation to study the coupled effect of the nonlinear isotherm and the nonisothermality on the overall adsorption uptake in a zeolite pellet. Similar to the Section 10.3, we shall assume that the thermal conductivity of the zeolite pellet is high and the heat transfer resistance is due to that of the stagnant film surrounding the pellet. This means that the temperature of the pellet is uniform, and the model corresponding to this circumstance is called the lumped thermal model. [Pg.650]

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