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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 Process for Efficient Industrial Oxygen Generation
Nov 10 , 2025Vacuum Pressure Swing Adsorption Oxygen Plant Process is the process that is used for the production of oxygen from the air. This process is independent of cryogenic and requires lesser power for the operation and also this process is capable of a high-quality oxygen with lower cost of operations. VPSA oxygen plant process can be used as a continuous supply of Oxygen for different industries like steel, glass, paper, chemical and wastewater industries.
Vacuum Pressure Swing Adsorption Oxygen Plant Process provides high stability, reliability, and efficiency of the process.
Adsorption properties of the different gases: This VPSA oxygen plant process is based on the principle that different gases have different adsorption properties. The system consists of two or more adsorption towers, which is filled with a zeolite molecular sieve. The sieve adsorbs the nitrogen gas molecules due to its high affinity for nitrogen as compared to oxygen.
The operation is continuous in two steps:
l Adsorption: The process is started by allowing the compressed air to pass through the tower. The nitrogen gas gets trapped in the sieve and the oxygen passes through the sieve and is obtained as a product gas.
l Desorption: The adsorbed nitrogen is blown down by the vacuum applied to the system. The molecular sieve is regenerated and can be put for another adsorption cycle.
Continuous change between adsorption and desorption steps produce continuous flow of oxygen.
A typical VPSA Oxygen Plant consists of the following:
l Air Blower – To introduce atmospheric air to the system
l Air Filter – To filter out dust and moisture from the air
l Adsorption Towers – Holds the molecular sieve beds for the gas separation
l Vacuum Pump – To generate vacuum for the desorption process
l Oxygen Buffer Tank – To store and de-water the produced oxygen
l Control Panel – Monitor all parameters for automatic control
These units work together to produce oxygen in a continuous and stable manner.
l Low energy consumption – The main process is vacuum swing, no need for high compression
l High Oxygen Purity – Oxygen purity up to 95% is produced
l Continuous Process – 2-tower design provides continuous flow of product gas
l Quick Start-Up – Oxygen can be produced within minutes of startup
l Compact Plant – Smaller footprint, lesser installation space required than cryogenic plants
l Ease of Maintenance – Modular construction allows for quick access to individual components
For these reasons, the VPSA system is the preferred option to meet medium-to-large industrial oxygen demands.
|
Feature |
VPSA Oxygen Plant |
PSA Oxygen Plant |
|
Pressure |
Operates at low pressure |
Operates at higher pressure |
|
Energy Efficiency |
More efficient due to vacuum cycle |
Slightly higher energy use |
|
Application Scale |
Medium to large industries |
Small to medium industries |
|
Oxygen Purity |
Up to 95% |
Up to 93% |
|
Start-up Time |
Faster |
Moderate |
The VPSA Oxygen Plant Process offers a clear advantage when high efficiency and low cost are priorities.
The working steps of VPSA Oxygen Plant Process are:
l Air Intake: Ambient Air Intake: The ambient air is sucked into the blower and filtered.
l Adsorption: Adsorption: Nitrogen and other gases are adsorbed on the zeolite bed.
l Oxygen Production: The residual oxygen flows to the storage tank.
l Desorption: Adsorbed gases in the sieve are removed by the vacuum pump.
l Regeneration: The sieve bed is ready for the next adsorption process.
The cycle repeats indefinitely to provide continuous oxygen output, with stable oxygen purity and flow rate.
l Energy Efficient: Vacuum is utilized to reduce the work of compression.
l Low Maintenance: Minimal moving parts mean less downtime.
l Environmentally Friendly: No chemical byproducts or emissions.
l Cost Effective: Low operating and maintenance costs.
l Scalable: Systems can be expanded to meet increased oxygen demand.
Versatility makes VPSA Oxygen Generation Process appealing to industries requiring oxygen generation. VPSA systems are chosen for their simplicity and efficiency in the oxygen generation process.
The applications of VPSA Oxygen Plant Process in various industries include:
l Steel Industry: Oxygen is used for combustion in furnaces and refining steel.
l Glass Manufacturing: Oxygen is used to increase flame temperature for glass melting.
l Paper and Pulp: Oxygen is used for bleaching and wastewater treatment.
l Chemical Industry: Oxygen is used in oxidation and synthesis reactions.
l Medical and Environmental Applications: Oxygen supply for hospitals, aeration systems.
The above are some of the VPSA Oxygen Plant Process working steps and their various applications.
l Replace the filter in time to ensure long-term stable operation
l Check whether the valve and pipeline are leaked in time
l Vacuum pump performance should be monitored
l The molecular sieves must remain dry and clean during operation
l Comply with the preventive maintenance plan
l The oxygen purity and equipment reliability are kept stable by regular inspection.
China is one of the VPSA Oxygen Plants manufacturers that is highly automated, with after-sales service, and reasonable price.
As for VPSA Oxygen Plants in China, Nanjing Bangwin Gas Equipment Co., Ltd. provides tailor-made VPSA for overseas customers.
The typical product purity from VPSA systems is 90–95% by volume depending upon design and operating conditions.
Vacuum is applied during regeneration period in VPSA systems. This results in reduced energy consumption.
Yes, with two adsorption towers, continuous production of oxygen can be achieved around the clock.
Under normal operating conditions the life of molecular sieves is typically 5–8 years.
Yes, it has no harmful emissions or by-products.
IPv6 network supported 
