company news about PSA Oxygen Generator VS VPSA Oxygen Generator

Why need a PSA oxygen generator?

As we all know, the importance of oxygen to nature and mankind. We need oxygen-filled air to survive. Moreover, the air we breathe is only about 21% oxygen. The rest is 78% nitrogen, 0.9% argon and other gases. In order to adapt to different medical or industrial applications, air separation equipment came into being. For example, oxygen production equipment (PSA oxygen generator and Vacuum PSA oxygen generator). Nitrogen production equipment. Argon production equipment and so on.

Air separation method

Up to now, there are three main methods of air separation in the world.

1. Cryogenic method
2. Pressure swing adsorption
3. Membrane separation

PSA oxygen generator VS VPSA oxygen generator

Due to cost, input-output ratio and other reasons, pressure swing adsorption is the most commonly used method of air separation. Among them, PSA is divided into normal PSA (Pressure Swing Adsorption) and VPSA (Vacuum Pressure Swing Adsorption). So, how to choose? PSA or VPSA? Next, GNEE will introduce the difference between PSA and vacuum PSA.

Basic differences between PSA VS VPSA

 The difference in work principle

PSA oxygen plant: PSA oxygen generation equipment, known as pressure swing adsorption PSA oxygen generator. The principle is to separate the gas mixture by using the difference in the “adsorption” performance of molecular sieves to different gas molecules. It uses air as raw material and uses a high-efficiency, high-selectivity solid adsorbent to selectively adsorb nitrogen and oxygen to separate nitrogen and oxygen in the air. Under normal temperature and pressure conditions, the special PSA molecular sieve is used to selectively adsorb impurities such as nitrogen, carbon dioxide and water in the air to obtain oxygen with higher purity. Please feel free to contact us to get the PSA oxygen generator price.

VPSA oxygen plant: The VPSA oxygen plant is called a low-pressure vacuum pressure swing adsorption VPSA oxygen generator. Under low-pressure conditions, the nitrogen and oxygen in the air are inhaled. After the adsorption is saturated, the molecular sieve is desorbed under vacuum conditions. Then the nitrogen is discharged from the discharge port, and the oxygen enters the purification system. The molecular sieve is continuously adsorbed and decompressed to circulate to produce high purity oxygen (90-95%). If you need to produce oxygen on a large scale, such as 1000m³/hr~3000m³/hr. You need to choose a VPSA oxygen generator.

Differences in equipment composition

PSA oxygen generator: air compressor, refrigeration dryer, degreasing device, adsorption system, oxygen buffer tank, and control system.

VPSA oxygen generator: blower, vacuum pump, cooler, adsorption system, oxygen buffer tank, and control system.

Choose a PSA or VPSA oxygen generator?

If you need an oxygen production capacity of 10m³/hr~500m³/hr, choose a PSA oxygen generator is better. If you need to produce oxygen on a large scale, such as 500m³/hr~3000m³/hr. You need to choose a VPSA oxygen generator. In addition, please refer to the difference between the PSA and VPSA above to choose which one is more suitable for you. If you have any questions, please feel free to contact us.

In addition to PSA Oxygen Generators, we also produce VPSA Oxygen Generators, storage tanks, heat exchangers and other products. If you are interested in VPSA Oxygen Systems or other products, please feel free to send an email to info@gneeheatex.com. We will be very happy to serve you.