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Handbook of Solvents - George Wypych - ChemTech - Ventech!

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1520 Klaus-Dirk Henning<br />

Figure 22.1.8. Adsorber construction forms.<br />

ties (beaded carbon or adsorber resins). After the adsorption stage <strong>of</strong> a multi-stage<br />

fluidized-bed system, the loaded adsorbent is regenerated by means <strong>of</strong> steam or hot inert gas<br />

in a moving-bed regenerator and pneumatically conveyed back to the adsorption section. 2<br />

When using polymeric adsorbents in a comparable system, desorption can be carried out<br />

with heated air because the structure-inherent faster kinetics <strong>of</strong> these adsorbents require<br />

desorption temperatures <strong>of</strong> only 80 to 100°C.<br />

Rotor adsorbers allow simultaneous adsorption and desorption in different zones <strong>of</strong><br />

the same vessel without the need for adsorbent transport and the associated mechanical<br />

stresses. Rotor adsorbers can be arranged vertically or horizontally and can be designed for

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