The Important Relationship Between Activated Alumina Molecular Sieve and Pressure Dew Point

In air compressors the term "pressure dew point" (PDP) is used to describe the amount of water in compressed air.The pressure dew point is the temperature at which water vapor condenses to water at the current working pressure.The lower the PDP value, the less water vapor in the compressed air.

Activated alumina ball desiccant and molecular sieve adsorbent is used to adsorb water vapor in the air, to reduce the water content in compressed air.

The main types of drying equipment can be selected according to the pressure dew point.When cost is taken into account, the lower the required dew point, the higher the investment and operating cost of air drying.Five techniques exist for removing moisture from compressed air: cooling plus separation, cold-drying machines, secondary compression, membrane drying, and adsorption drying.And adsorption desiccant adsorption tower is filled with activated alumina desiccant and molecular sieve adsorbent.Adsorption and regeneration alternately, to avoid long-term adsorption, resulting in adsorption of water molecules saturated, prolong the service life.

Our molecular sieves and activated alumina are used in adsorption dryers with the lowest pressure dew point of -70℃. Completely meet the terminal requirements of various industries.