PSA Oxygen Gas Plant work with Pressure Swing Adsorption technology. Which ensure continuous supply of oxygen with high purity. We produce highly economical oxygen plants. These generators absorb nitrogen with the help of two absorption vessels that are filled with most efficient zeolite molecular sieves. 

During the Oxygen Gas Generation Process, the air is separated from nitrogen with the help of zeolite molecular sieves. This involves two towers filled with zeolite molecular sieves. Which adsorb nitrogen. The oxygen generated is 95% pure. When nitrogen saturates one tower it is purged. The plant then changes over to the other tower. Which helps in continuous oxygen generation.

How A psa Plant works

Air contains 21% Oxygen, 78% Nitrogen, 0.9% Argon and 0.1% other trace gases. Oxair An Oxygen generator separates this oxygen from Compressed Air through a unique process called Pressure Swing Adsorption. (PSA).

The Pressure Swing Adsorption process for the generation of enriched oxygen gas from ambient air utilises the ability of a synthetic Zeolite Molecular Sieve to absorb mainly nitrogen. While nitrogen concentrates in the pore system of the Zeolite, Oxygen Gas is produced as a product.

Our PSA Oxygen generation plant use two vessels filled with Zeolite Molecular sieve as adsorbers. As Compressed Air passes up through one of the adsorbers, the molecular sieve selectively adsorbs the Nitrogen. This then allows the remaining Oxygen to pass on up through the adsorber and exit as a product gas. When the adsorber becomes saturated with Nitrogen the inlet airflow is switched to the second adsorber. The first adsorber is regenerated by desorbing nitrogen through depressurisation and purging it with some of the product oxygen. The cycle is then repeated and the pressure is continually swinging between a higher level at adsorption (Production) and a lower level at desorption (Regeneration).

PSA gas plant Technical Specifications

15 cubic meter/hr

Plant Capacity

Litres/min: 248

Power Needed: 32KW

Purity: 93-95 ± 1%

Working Pressure: 4-5kg/cm2g

Delivery Period: 9-10 weeks

30 cubic meter/hr

Plant Capacity

Litres/min: 499

Power Needed: 57KW

Purity: 93-95 ± 1%

Working Pressure: 4-5kg/cm2g

Delivery Period: 9-10 weeks

*These plants are designed for direct hospital supply through pipeline

Salient Features of PSA Oxygen Gas plant

Lower Space Requirement 

The design makes the plant size very compact.

Quick  Start-up 

Start-up time is only 5 minutes.

High Reliability

continuous and steady operation with constant Oxygen purity. Plant availability time is better than 99% always.

Low Maintenance:

Expected Molecular sieves life is around 10-years i.e. whole life time of the plant. So no replacement costs.

Applications Of PSA Oxygen gas Plant

PSA gas plants are widely used. It generates 95% pure oxygen through its molecular sieve.

  • Paper and Pulp industries.
  • Glass industries.
  • Metallurgical industries.
  • Chemical industries.
  • Effluent Water and Waste Water treatment.
  • Color And B & W Picture Tube/ Glass Shell Industry.
  • Lamp Industry.
  • Brazing Application.
  • Fish Farming.
  • Ozone Generation.
  • LPG Enrichment.