Heating Regeneration Adsorption Dryer Heat Regenerative Adsorption Dryer

The principle of micro thermal adsorption dryer is similar to that of non thermal regeneration, usually consisting of a filter layer of activated alumina, silica gel or molecular sieve. It also uses dry regeneration.

The regeneration gas of the micro heat adsorption dryer will be slightly heated by a small heater before entering the regeneration tower,
Heat can significantly reduce the binding force between water molecules and adsorbents, accelerate the desorption process, and potentially reduce the consumption of regenerated gas. In the later stage of regeneration, cold blowing is usually required to cool the tower body with unheated dry gas in preparation for the next adsorption cycle.

Adsorption process:
The compressed air processed by the heatless adsorption dryer enters the working adsorption tower and flows through the adsorbent bed. Adsorbents have a large specific surface area and hydrophilic microporous structure. When compressed air flows through, the water vapor molecules in the air are strongly attracted by the intermolecular forces on the surface of the adsorbent and firmly locked inside the micropores.

Regeneration process:
This adsorption process will continue until the adsorbent approaches saturation, at which point the dew point of the outlet air will begin to rise. The system will switch to the regeneration stage based on the preset time or dew point monitoring signal. When tower A is undergoing adsorption, tower B is in the regeneration stage. Decompress a portion of the compressed air that has been dried by tower A and has an extremely low dew point pressure. The regenerated gas after decompression becomes very dry and has strong water absorption potential. This low-pressure dried regenerated gas flows in the opposite direction of the gas flow during adsorption, passing through the saturated B tower adsorbent bed. The purpose of regeneration is to desorb the adsorbed water from the B tower adsorbent and restore its drying ability.

Exhaust process:
As adsorption progresses, the adsorbent bed will form an adsorption front. After drying, the compressed air reaches the required low dew point and flows out from the top of the tower. After passing through the post filter, it is supplied to downstream use. And the regenerated gas carrying a large amount of moisture is directly discharged into the atmosphere.

The Heat Regenerative Adsorption Dryer is an advanced drying system designed to efficiently remove moisture from compressed gases such as air, nitrogen, and oxygen. Utilizing the principle of adsorption, this dryer employs a specialized adsorbent material (typically molecular sieve or alumina) to capture and retain moisture from the incoming gas stream.

The Heat Regenerative Adsorption Dryer is the dual tower alternating working design.
The driving force of regeneration is to utilize the huge concentration/pressure difference formed by the depressurization of dry gas, and to use heat to reduce the binding energy of water molecules and the dry airflow to carry away moisture.