FAQ

FAQ

What types of desiccants do you use and what are their particular features?

We use the following types of desiccants.

1. Activated alumina
  Activated alumina is a white beaded desiccant with a diameter of 2 to 4 mm. Compared with silica gel, it has a lower surface-area-to-weight ratio and exhibits a higher fluctuation of the quantity adsorbed in relation to changes in relative humidity. Due to its adsorption characteristics, activated alumina is mainly used for heatless regenerative dehumidifying equipment.

2. SK-400 silica alumina
  SK-400 silica alumina is a white beaded desiccant with a diameter of 2.36 to 4.75 mm. Since it has a higher surface-area-to-weight ratio as well as higher heat and water resistance than activated alumina, it is mainly used for heated dehumidifying equipment. Silica-alumina particles do not fracture when exposed to water mist and can be used alone.

3. SK-600 silica gel
  SK-600 silica gel is a clear beaded desiccant with a diameter of 2.36 to 4.75 mm. It has a high surface-area-to-weight ratio and adsorbs more moisture than any other type of desiccant. Silica gel fractures when exposed to mist, and its adsorption performance degrades when regenerated at high temperatures. Due to these drawbacks, silica gel has more application limitations than other types of desiccants. Silica gel is used in combination with silica alumina in our heated air and gas dehumidifying equipment products.

4. Synthetic zeolite
  Synthetic zeolite is a pale yellow beaded desiccant with a diameter of 2.36 to 4.75 mm. 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.


Environment and Energy Conservation