Heat regeneration adsorption air dryers are used when one needs compressed air of very low Dew point of (-)60oC or (-)80o Deg C. In this design, the desiccant is regenerated at higher temperature, along with small quantity of Dry air purge. Due to purging with Dry air and thermal regeneration, residual moisture loading on desiccant becomes low and this gives very low Dew point.

Heat regeneration adsorption air dryers are used when one needs compressed air of very low Dew point of (-)60oC or (-)80o Deg C. In this design, the desiccant is regenerated at higher temperature, along with small quantity of Dry air purge. Due to purging with Dry air and thermal regeneration, residual moisture loading on desiccant becomes low and this gives very low Dew point.