How To Use Molecular Sieve Desiccant on Desiccant Air Dryers

Desiccant dryers lower the dewpoint of compressed air by adsorbing water vapor onto the surface of Zeolite Molecular Sieve 4A,. The three basic types of desiccant used in dual tower regenerative air dryers are:

Activated Alumina

Silica Gel

Molecular Sieve

The process of Zeolite Molecular Sieve Desiccant 4Aadsorption begins as the water vapor, highly concentrated in the compressed air stream, moves into an area of lower water vapor concentration in the pores of the desiccant.

Once inside the pores, a natural attraction of the vapor molecules to the solid surface of the desiccant causes water vapor molecules to build upon the surface of the desiccant. As enough molecules gather, vapor changes phase and becomes a liquid. The process continues as long as the water vapor concentration in the air is greater than the concentration in the desiccant pores.

The water remains on the surface of the Molecular Sieve Desiccant 4A For Air Dryer until it is stripped off. This stripping is called reactivating or regenerating the desiccant. Reactivating the desiccant means it may be used again and again.

**The above information is for customers’ reference only. Performance characteristics vary depending on specific application. please contact us by email at info@fznewmaterials.com if detailed application method for materials needed.