<BR> | Drying compressed air by adsorption is a purely physical process. The moisture is bound to the drying agent by force of adhesion ( unbalanced molecular attraction ). The moisture stays on the inner and outer surfaces of the adsorption material without a chemical reaction taking place.
The adsorption material has an open porous structure and a large inner surface. The most common adsorption materials are aluminium oxide, silicagel, active carbon and molecular screens. Different adsorption materials are used for the various regeneration processes.
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