Innovation & technology

Pressure Swing Adsorption (PSA) Technology and Systems

PSA technology enables autonomous on-site production of high-purity gases through pressure swing adsorption, reducing dependence on external suppliers and improving operational continuity for healthcare and industrial facilities.

Pressure Swing Adsorption (PSA) Technology – intelligent solutions that deliver operational autonomy, superior certified gas purity, high performance, reliability, and fully integrated turnkey systems.

What is PSA?

PSA (Pressure Swing Adsorption) is a technology used to separate gases contained within a gas mixture by taking advantage of the ability of certain adsorbent materials to selectively retain specific gases when pressure increases.

It is widely used for the production of medical and industrial oxygen, nitrogen, and medical air, as well as for the purification of other industrial gases, including carbon dioxide.

How It Works?

1. Air/Gas Compression: The gas mixture is compressed and directed into a vessel filled with adsorbent material (zeolites, activated carbon, or molecular sieves).

2. Adsorption (High Pressure): Under elevated pressure, the adsorbent selectively captures the unwanted gas, while the desired gas (e.g., oxygen) passes through freely and is collected at high purity.

3. Depressurisation: Once the adsorbent becomes saturated, the system reduces the pressure, causing the captured gas to be released.

4. Regeneration: The adsorbent is regenerated and restored to its original condition, ready to begin a new operating cycle.

What Is It Used For?

Production of Medical Oxygen (up to 99% purity);
Production of Industrial Nitrogen (up to 99% purity);
Hydrogen Purification;
CO₂ Separation for Industrial Processes; Breathing Air Supply for Hospitals and Laboratories;
Continuous On-Site Gas Generation

Operating Principle

The PSA system operates through rapid high-pressure and low-pressure cycles:

Adsorption: The compressed gas mixture passes through an adsorbent bed; the adsorbent retains (adsorbs) the unwanted gases, while the desired gas exits in a purified form.
Depressurisation (Desorption): The pressure is reduced, causing the adsorbent bed to release the captured gas.
Regeneration: The adsorbent is regenerated, becoming “clean” and ready for a new operating cycle.

Key Components

Air Compressor;
Particle and Oil Filters;
Air Dryer;
PSA Vessels with Molecular Sieves (Zeolite or Activated Carbon);
Automatic Pneumatic Valves;
Buffer Tank;
Control Panel and PLC (Programmable Logic Controller);
Safety Systems (Pressure Switches and Pressure Relief Valves).

Technical Specifications

Gas Purity: 99% – 99.5%;
Operating Pressure: 5 – 10 bar;
Outlet Pressure: Adjustable from 3 – 5 bar;
PSA Cycle Time: 5 – 10 seconds per vessel;
Air Consumption: According to system capacity and model configuration;
Operating Temperature: 5°C – 45°C;
Power Supply: 220–380 V / 50–60 Hz;
Noise Level: < 72 dB (with acoustic enclosure).

Technical Advantages

Continuous on-site gas generation (24/7 operation);
Low operating costs;
High energy efficiency;
Environmentally friendly technology with no chemical products required;
Fully automated operation;
Low maintenance requirements.

Installation Requirements

Well-ventilated installation room;
Controlled ambient temperature;
Stable electrical power supply;
Compressed air line equipped with appropriate filtration systems;
Level and structurally suitable flooring.

Preventive Maintenance

Filter replacement: every 3–6 months;
Compressor inspection: weekly;
Continuous gas purity monitoring and testing;
Comprehensive PSA system inspection: annually;
Molecular sieve service life: 5–10 years.

Custom development

Need a technology solution tailored to your industrial or hospital reality?

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