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WhatsApp / Mob : +86 156 5177 2521
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Email : mrwin@cnbangwin.com
WhatsApp / Mob : +86 156 5177 2521
Email : mrwin@cnbangwin.com
VPSA Oxygen Plant: Energy-Efficient Industrial Oxygen Production
Mar 19 , 2026Oxygen is essential for many industries like steel mill, glass industry, power plant and other chemical industry. The market demand for oxygen increase, Oxygen suppliers must have large scale capacity and steady supply ability.
Vacuum Pressure Swing Adsorption Oxygen Plant(VPSA Oxygen Plant) is a system that produces oxygen directly from air.The adsorption technology used in VPSA Oxygen Plant separates oxygen from nitrogen by using the molecular sieve adsorption phenomenon of mixed gas in atmospheric air.
Vacuum Pressure Swing Adsorption (VPSA) technology has low power consumption and the unit can be started rapidly compared to cryogenic air separation unit.
Recommended internal pages:
l Cryogenic Air Separation Plant
l PSA Nitrogen Generation System
Vacuum Pressure Swing Adsorption Oxygen Plant is also called On-site oxygen generation plant which produce oxygen by adsorption.
It extracts oxygen from the air by using zeolite molecular sieve to selectively adsorb nitrogen.
The purity of oxygen produced by Vacuum Pressure Swing Adsorption technology is generally as follows:Oxygen purity : 90%~95%
Vacuum Pressure Swing Adsorption Oxygen Plant produce oxygen and send to user by pipeline.
Process overview of VPSA oxygen generation:
l Air Compressor
Atmospheric air is blown into the air compressor through the blower with low pressure.
l Adsorption
Blown air flows into the adsorption tower with zeolite molecular sieve. Adsorbent absorbs nitrogen molecules, allowing oxygen molecules to pass through.
l Buffer Tank
The oxygen-containing gas obtained is sent to the buffer tank to adjust pressure and flow.
l Vacuum Regeneration
A vacuum pump adsorbs the molecular sieve that has adsorbed nitrogen to remove nitrogen. Therefore, regeneration is performed to reuse adsorbents.
l Continuous Generation
VPSA oxygen generator consists of multiple adsorption towers and works continuously in turn to supply oxygen.
l Air blower
l Air purification system
l Adsorption tower
l Zeolite molecular sieve layer
l Vacuum pump
l Oxygen buffer tank
l Control system and automatic system
l Oxygen compressor (optional)
Those are principle parts of normal VPSA oxygen plant, which will supply stable oxygen.
The VPSA has many benefits as comparing with other oxygen production process.
l Low Energy Consuming
It has lower energy consumption than cryogenic oxygen plant when it produces medium amount of oxygen.
l Continuous Oxygen Production
VPSA oxygen generation system could supply uninterrupted oxygen production.
l Easy Operation
VPSA oxygen plant is simple to operate and requires little operation attendance.
l Low Investment
The investment of VPSA is lower than cryogenic oxygen plant.
l Quick Startup
It takes much less time to start up and reach to full capacity compare with cryogenic plant.
Although both systems use adsorption technology, they operate differently.
|
Feature |
VPSA Oxygen Plant |
PSA Oxygen Plant |
|
Pressure Level |
Low pressure with vacuum |
Higher pressure |
|
Oxygen Purity |
90–95% |
90–93% |
|
Production Capacity |
Medium to large |
Small to medium |
|
Energy Efficiency |
Higher for large volumes |
Suitable for smaller systems |
|
Applications |
Industrial oxygen supply |
Medical and small industries |
VPSA systems are generally preferred for large industrial oxygen demand.
VPSA oxygen plants find application in numerous industries.
Key industries:
l Steel industry
l Non-ferrous metals industry
l Glass industry
l Water treatment industry
l Chemical industry
l Paper industry
l Energy & power industry
The mentioned industries all require huge quantities of oxygen gas to carry out oxidation or combustion reactions.
There are a few things you need to consider when choosing a system.
l Demand for Oxygen
Ensure that the plant’s rated production capacity can meet the demand of your facility (normally daily consumption).
l Requirement For Oxygen Purity
Most industries only need oxygen purity in the range of 90%~95%.
l Energy Consumption
The energy consumed by the plant is also an important factor that affects operating costs.
l Plant Install Conditions
The space availability and other conditions of the plant site also determine the configuration of the plant.
Seek advice from knowledgeable suppliers to help you get the right configuration.
Bangwin Gas manufactures industrial gas generation systems and oxygen generation technology.
They offer :
l VPSA oxygen plants
l PSA oxygen generator
l Cryogenic air separation plant
l Liquid oxygen plant
l Nitrogen generation system
l Cryogenic storage tank
Visit : https://bangwingas.com/
Their services include engineering consultan- ship services like system design,manufacturing, onsite erection, commissioning and turnkey project execution.
Industry references:
l International Gas Union
https://www.igu.org
l Air Liquide Industrial Gas Technologies
https://www.airliquide.com
l Linde Engineering
https://www.linde-engineering.com
l What kind of purity can be produced by a VPSA oxygen plant?
Typically 90% to 95% purity oxygen is produced by VPSA systems.
l What are the application industries of VPSA oxygen plants?
Applications of VPSA include steelmaking, glass industry, wastewater treatment, chemical industry, etc.
l Is VPSA having better energy efficiency than PSA?
Yes, VPSA is considered more energy efficient than PSA when it comes to medium and large size of oxygen production capacity.
l Can the VPSA plants provide continuous supply of oxygen?
Yes. VPSA oxygen plants operate continuously for 24 hours a day for 7 days a week in industries.
l Can we replace cryogenic oxygen plants with VPSA systems?
Cryogenic oxygen plants are irreplaceable when it comes to very high capacity oxygen demand and high purity applications.
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