What techniques are available to separate/filter gases?

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In the discussion on techniques for separating species or particulates in a flowing gas stream, several methods are highlighted. Centrifugation can separate components based on density, while molecular sieves are effective for size-based separation. Electrical or magnetic fields can be utilized to exploit charge differences, and chemical reactions can target specific species. Distillation is mentioned as a viable method, requiring a phase change to liquid, and is acknowledged as a valid separation technique. Additional methods discussed include gas chromatography, which separates based on solubility, and pressure swing adsorption and vacuum swing adsorption, which are also effective for gas separation. Cryogenic distillation is noted as another advanced separation technique. The conversation emphasizes the variety of methods available for gas stream separation, encouraging further exploration of these techniques.
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If you have a flowing gas stream, with multiple species, how many different techniques are there to separate species or particulates?

I know you can:

-use centrifugation or similar techniques to separate based upon density

-use a molecular sieve to separate based upon particle size

-use an electrical or magnetic field to separate based upon charge differences

-use another chemical to bond/react with a target species



Is there anything else I'm missing? Or suggestions on where to read about this?
 
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jedishrfu said:
how about distillation?

This would require a phase change to liquid, wouldn't it?

But yes, I guess that still counts.

Thanks!
 
You could move them through a vacuum and separate based on their relative velocities
 
Exploit different solubilities.
 

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