We offer four types of desiccants. You can choose the one that is most optimal for your air dehumidifying equipment application, depending on whether it is for a heated or heatless regenerative system.

Activated Alumina Activated Alumina

Activated alumina is a white beaded material. It has a higher surface-area-to-weight ratio and a steeper adsorption isotherm (a graph indicating changes of the quantity adsorbed in relation to changes in relative humidity) than silica gel. Due to its adsorption characteristics, activated alumina is mainly used for heatless regenerative air dehumidifying equipment.

Silica Alumina Silica Alumina

Silica-alumina desiccants are mainly used for heated air dehumidifying equipment due to their water-resistant property. Silica-alumina particles do not fracture when exposed to water mist and can be used alone.

Silica Gel Silica Gel

Silica gel is a clear beaded material with a high surface-area-to-weight ratio. Pound for pound, silica gel adsorbs more moisture than any other desiccant. The downside is that silica gel fractures when exposed to mist and its adsorption performance degrades when regenerated at high temperatures. While silica gel is super adsorbent, the drawbacks limit how and where it can be used.

Synthetic Zeolite Synthetic Zeolite

Unlike active alumina and silica gel, synthetic zeolite exhibits better adsorption performance in high temperatures or low relative humidity regions. While synthetic zeolite is not commonly used for normal compressed air drying processes, it is used for drying special gases and as a molecular sieve to separate certain types of molecules from mixed gases.