PSA stands for pressure swing adsorption.

Pressure: The process typically requires elevated pressures, typically ranging from 4 to 8 bar(g). If your specific process requires higher pressures, they can also be accommodated.
Swing: While one vessel is undergoing pressurization, the other vessel is simultaneously undergoing depressurization.
Adsorption: The PSA principle is employed for the separation of atmospheric air, where oxygen is extracted from the air through an adsorption process.

A PSA oxygen generator operates by utilizing the pressure swing adsorption (PSA) process to separate oxygen from other gases present in the air. This method involves directing the air through a bed of adsorbent material, such as zeolite, which possesses a strong attraction to oxygen molecules. As the air passes through the bed, the oxygen molecules selectively adhere to the surface of the zeolite, while the remaining gases continue their flow. Once the zeolite becomes saturated with oxygen molecules, the airflow is halted, and the pressure is released, causing the oxygen molecules to detach from the zeolite and accumulate in a storage tank. Subsequently, the process is repeated using fresh air, while the previously adsorbed oxygen is employed for other applications.
With its ability to generate a high-purity oxygen product (exceeding 90% oxygen) and deliver a substantial flow rate, the PSA oxygen generator stands as a low-maintenance solution. It finds frequent utilization in medical and industrial settings, meeting the demand for a dependable oxygen source.

How Does a PSA Oxygen Generator Work?

The essential components of a PSA oxygen generator include a zeolite bed and a compressor. The zeolite bed, a porous material, serves to absorb nitrogen molecules from the surrounding air and subsequently release oxygen molecules. To facilitate this process, the air is compressed using the compressor and directed through the zeolite bed. As the air flows through the zeolite, nitrogen molecules are adsorbed while oxygen molecules are released. The resulting air, enriched with oxygen, is collected and stored for future utilization.

Common Applications

PSA oxygen generators find wide application across various fields, including but not limited to:

Industrial processes: PSA oxygen generators play a vital role in diverse industrial processes, encompassing metal cutting and welding, paper production, and wastewater treatment, among others.
Oxygen in Hospitals, Vets and Clinics: Relying solely on oxygen cylinders can have its advantages and disadvantages, which is why it's beneficial to consider alternative options. A PSA generator offers the advantage of generating oxygen on-site, allowing for direct piping to each bed, ensuring that the required oxygen is readily available.
Aerospace: PSA oxygen generators find application in supplying oxygen to both pilots and passengers aboard aircraft.
Aquaculture: PSA oxygen generators are utilized in fish and shrimp farms to supply oxygen to the aquatic organisms.

Benefits of Using a PSA Oxygen Generator

Using a PSA oxygen generator offers numerous advantages, such as:

1. PSA oxygen generators exhibit exceptional efficiency, capable of producing oxygen with purity levels reaching up to 96%.
2. PSA oxygen generators offer rapid startup, allowing for convenient initiation and shutdown of oxygen production as needed. They provide flexible operation and remarkable versatility.
3. The adsorption and separation process in the PSA oxygen generator is automatically controlled by a PLC, enabling remote operation by the operator.
4. Air separation costs are minimal, with the main operational expense being power consumption.
5. With proper filling and filtration treatment, molecular sieve can have a durable lifespan of 8-10 years.
6. With its compact structure and small footprint, the equipment minimizes the need for additional infrastructure, making it effortless to transport, install, and operate.
7. The gas purity and output can be easily adjusted, ensuring efficiency, environmental friendliness, and energy savings.
8. A complete system comprises an air compression system, compressed air pretreatment system, and adsorption-separation system. The construction and maintenance costs of the system are relatively low.
9. They offer cost-effectiveness by eliminating the need for oxygen tanks or cylinders.
10. They are environmentally friendly, as they generate oxygen from ambient air without producing any emissions.

Check the PSA Oxygen Generators on Sihon-Ozone.

What are the maintenance requirements?

The maintenance needs of a PSA oxygen generator may differ based on the model and manufacturer. Nonetheless, it is advisable to conduct routine inspections and maintenance tasks to ensure optimal performance. This can involve examining the zeolite bed for contamination or wear, cleaning the compressor and other components, and replacing any worn-out or damaged parts. Adhering to the manufacturer's guidelines for operation and maintenance is crucial for effective upkeep of the device.
By working together with ozone generators, PSA oxygen generators will provide high purity oxygen for ozone generators to ensure the generation of high purity ozone gas. Please Contact Us for more information on the specifications and applications of PSA Oxygen Generators.