Introduction of PSA technology
PSA technology is more and more popular in the world right now. Full name of PSA is “Pressure Swing Adsorption”. Basically the system is for the air separation , the most application is to N2 produce. So as it mention PS in the air separation, the first thought is PSA nitrogen generator.
Principle of PSA technology
Because the different dimension between oxygen molecule and nitrogen molecule( O2 molecule is smaller than N2 molecule), at the certain pressure, the oxygen molecule is adsorbed by the CMS when the two elements go through the tank which is full of carbon molecular sieve (CMS). How does it happen? Actually there are numerous holes on the surface of the carbon molecule, and these holes are bigger than O2 molecule, but smaller than N2 molecule. So when they are under the pressure, the O2 molecule will be forced to the hole which is at the surface of carbon molecule, but the N2 molecule will flow out. At last the N2 has been separated.This is also the key process of PSA nitrogen generator.