1 reply to this topic

[rsk]

For drying of compressed air dessicant is to be selected, what forms the basis.

[Art Montemayor]

RSK:

 

When selecting the type of adsorbent (which is what you mean) to be used in gas drying service, you should rely on:

• Your experience with the individual adsorbents being considered;
• The drying service to be imposed on the adsorbent - what product dew point are you targeting?  What is the nature of the gas to be dried?
• What is the operating pressure and temperature?
• What type of adsorber unit design are you evaluating?  - is it a "heat less" type?  Is it a heat regenerated type?  Is it a PSA type?  etc., etc.
• Are you going to base your decision on adsorbent price?  Or on performance?
• Can you tolerate dusting or adsorbent breakdown?  If so, go with silica gel - the cheapest and the most prone to dust.
• How clean is your process gas?
• What type of regeneration system are you employing?

There are more items that come into play, but the above should suffice with the general nature of your query.