The principles of pressure swing adsorption (PSA) Nitrogen generator are adsorption and diffusion.
gas has a characteristic adsorption rate that when adsorbed by Carbon
Molecular Sieve (CMS) which is used as adsorbent in PSA nitrogen
generators made by CANGAS SYSTEMS COMPANY LIMITED. CMS has large surface
area containing volume of micro pores and passageways. Oxygen has a
higher adsorption rate than nitrogen by CMS at certain pressure. When
compressed air enters CMS, nitrogen molecules are able to pass through
this large surface. And oxygen molecules are adsorbed to the surface
area. This how CANGAS PSA nitrogen generation plants work.
As the CMS is saturated with oxygen, it should be depressurized to regenerate for next cycle. CANGAS PSA nitrogen generator adopts two towers filled with CMS to produce a continuous stream of nitrogen.
During depressurization, the nitrogen of lower purity than required is transferred to another tower, which is called pressure equalization. Pressure equalization donates to higher efficiency and less energy consumption.
in the definite time and ways to equalize the pressures in both
adsorption towers is the key to the best results. For CANGAS PSA
nitrogen generators, this had been made to the best supported by lots of
test and years of experience.
PSA Nitrogen Generator
is a nitrogen generation equipment adopting carbon molecular sieve as
adsorbent - pressurized adsorption and desorption of oxygen from the
air, resulting in the separation of nitrogen. Carbon molecular sieve's
O2 and N2 adsorption properties with the increasing of adsorption
pressure makes O2, N2 adsorption capacity increased, and the adsorption
rate of O2 is higher. CANGAS PSA nitrogen generators exactly utilize
these features of nitrogen, oxygen and CMS. But this is not enough, many
factors shall be considered and manipulated to the best - this is also
why CANGAS PSA nitrogen generators are welcome and so popular in the
world because CANAGS do everything the best. PSA cycle is short - O2, N2
adsorption start from equilibrium/pressure equalization, but the O2, N2
diffusion rate are so different that O2 adsorption capacity in a short
time is much higher than the adsorption capacity of N2. PSA Nitrogen
generation technology is using carbon molecular sieve's adsorption
characteristics, and the principal of pressurized adsorption, desorption
decompression cycle - the compressed air alternately goes into two
adsorption towers to achieve air separation, thereby producing a
continuous flow of product nitrogen. However knowing these is not enough
- CANGAS had developed all these to the best in all CANGAS PSA nitrogen