For drying of compressed air dessicant is to be selected, what forms the basis.
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Silica Gel And Molecular Sieve Selection Basis
Started by rsk, Dec 04 2016 01:15 AM
1 reply to this topic
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#1
Posted 04 December 2016 - 01:15 AM
#2
Posted 05 December 2016 - 08:52 PM
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.
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