The process of dehumidifying air with solid adsorbents is characterized by taking advantage of the properties of an agent having a high affinity with water. Our systems include a desiccant rotor based on silica gel (SiO2) or molecular filters. These systems can be used under low level of humidity (-60 ° C dew point). They have the advantage of being able to use other energy sources than electricity to dehumidify the air, such as superheated water, steam or gas burner directly in the air stream. The third generation PPS and PPX silica gel desiccant rotors install on our air dryers contains a high active silica gel component. It provides a high dehumidification performance and reduce energy consumption.
DESSICA systems uses two independent and counter-current air flows through the desiccant rotor, with a slow and continuous pace: vcbvbvcbvcbvcbvcbbbvcxbvcbvbv
- the main air flow (process air) is dried
- the secondary flow (reactivation air), of lesser volume, is used to evacuate the moisture retained by the desiccant rotor.
Two fans set in motion both air streams.
Silica gel is a high- performance hygroscopic material capable of retaining the water vapor contained in the ambient air. By floating through the rotor, the humid air loses its moisture captured by the silica gel material. The dry air is then totally usable.
The purpose of the reactivation air is to evacuate the moisture captured by the silica gel in the rotor. The air is brought to an approximate temperature of 212°F to 320°F (100°C to 160°C) and then crosses the rotor against the wet air flow to remove the moisture retained in the silica gel. The wet reactivation air leaves the dehumidifier to be evacuated outside the building or any other premises.