Separation processes based on what is widely labeled as adsorption, followed by desorption are widely utilized (Hines
and Maddox, 1985). Due to its inherent effectiveness in adsorption processes the packed-bed reactor is generally
preferred (Levenspiel, 1962). Its advantage is the highest possible packing density of the sorbent, yielding a high
volumetric productivity. The performance of packed-bed adsorbers is analyzed using the effluent concentration versus
time curves. For adsorption the plot is usually referred to as the breakthrough curve, and for desorption it is the elution
curve. Both curves are a function of the column flow parameters, sorption equilibrium and mass transport factors (Aldor
et al., 1995).