Thursday 6 September 2018

Things You Should Know About PSA Oxygen Plant

PSA Oxygen Plant
PSA  Oxygen Plant in this  PSA stands for Pressure Swing Absorption Plant which is used to separate the oxygen from a mixture of gases . When pressure is applied to zeolite molecular sieves which attracts  oxygen more than nitrogen as its absorption capacity is different and oxygen exists the vessel.
What are the parts of PSA Oxygen Plant?
1) Air Compressor & After Cooler :- The Air Compressor reduces the  air up to 7.5 Bar and  then it allowed to  cool down  to ambient temperature in a shell or a  tube type heat exchanger. With the help of a mechanical unload the air compressor is been unloaded.
2) Oxygen Surge Vessel :- Oxygen from PSA Module have different varying purity depending upon the pressure it adsorbed during the one minute cycle time. The output received is also obtained at constant pressure with constant average gas purity.
3) Air Receiver :- It serves as a buffer vessel / small storage for compressed air to continuous feed the air to the system and as a result it kills the pulsation of pressure.
4) Raw Oxygen Flow Meter :- Raw oxygen flow meter (Rotameter) is used at the outlet of Oxygen Surge Vessel to check the quantity of Oxygen flow drawn in PSA system.
5) Percentage Oxygen Analyser :- It is a digital on-line oxygen analyzer is installed to monitor the oxygen Percentage level at outlet. 
Application
1) Metal industry
Oxygen is heavily used in the metal industry , because it improve the process efficiency by increasing the burning temperature which is used in the production of ferrous and non ferrous metals.
2) Chemical and petrochemical industries
In chemical and petrochemical industries, oxygen helps to increase the  oxidation of raw chemicals and  healing  of nitric acid, ethylene oxide  and other important chemical compounds.
3) Fish farming
The use of oxygen in the fish farming is to increase the survival and fertility ratios and reduce the incubation period.This oxygen  is applied for shrimps, crabs and mussels rearing.
4) Glass industry
  In glass furnaces industry oxygen is accomplished and it is  used to increase burning temperature  and burning processes improvement.
5) Waste management
Oxygen  is also used in incinerators which allows significantly increased the  flame temperatures and eventually ensures enhanced cost efficiency and incinerator production capacity.
Advantages :-  • It provides complete automation and simplicity in operation
•Quick start and stop facility.
• It has Moderate dimensions and light weight •Low noise level
• It helps to  Extended operational life
• It reduces Low operating costs
• To use it their is no special workshop is required
• It is easy to install and integration into an existing air system.
•Relativity low oxygen purity - 93-95% for adsorption 

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