Regenerative Compressed Air Dryers

Pneumatech  regenerative desiccant dryers use a porous desiccant that adsorbs the moisture by collecting it in a myriad of pores, allowing large quantities of water to be retained by a relatively small quantity of desiccant. The desiccant is contained in two separate ASME pressure vessels (towers). Compressed air flows through one tower to be dried, while the desiccant in the other is being regenerated. Regeneration is accomplished by reducing the pressure in the tower and passing previously dried purge air through the desiccant bed. Externally heated models are also available. The heated purge air reduces the amount of air required to regenerate the desiccant bed. Dryers are available with a built-in regeneration cycle that is controlled by a timer, a dew point control, or a combination of both.