HEATLESS ADSORPTION FOR COMPRESSED AIR PURIFICATION
In some industry (electronics, pharmaceutical, food preparation, pneumatic conveying, etc.) or for installations with external pipe work, a pressure DewPoint of +3°C from a refrigerant dryer is not sufficient.
For these applications, a heatless adsorption dryer is required supplying compressed air at a pressure DewPoint of down.
The HDT heatless adsorption dryers consist of two parallel vessels filled with adsorption material (molecular sieve). While compressed air is dried in one tower, the second saturated tower, having just come off line, is regenerated.
A small amount of dried compressed air is used for this purpose.