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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
Liquid Oxygen Plant: Industrial Production and Applications
Mar 10 , 2026Liquid oxygen is used in various industrial applications. It helps manufacture steel, supply hospitals, and process chemicals. Thus, having efficient oxygen production technology is vital.
Liquid oxygen plants generate oxygen by separating it from the air. Cryogenic air separation technology allows plants to produce high purity oxygen at large volumes.
Nanjing Bangwin Gas, an oxygen plant manufacturer, develops advanced oxygen plants that help supply industrial gas efficiently and uninterruptedly.
Recommended internal pages:
l Cryogenic Air Separation Plant
l Liquid Nitrogen Generation Plant
Liquid oxygen plant refers to a facility that produces oxygen in liquid form. The plant separates air and cools it to extremely low temperatures to produce oxygen.
Air is made of around:
l 78% nitrogen
l 21% oxygen
l trace of argon and other gases
The liquid oxygen plant will then extract these gases and store oxygen as LOX at around −183C.
Manufacturers can deliver liquid oxygen in this state or convert it to gas for industrial use.
The working principle of the liquid oxygen plant involves the following stages.
Compression of Air
Ambient air is compressed by passing through compressors, which increase its pressure.
Purification of Air
Moisture, carbon dioxide, hydrocarbons are removed from compressed air to avoid freezing at cryogenic temperature.
Cooling of Air to Cryogenic Temperatures
After purification, compressed air is sent to heat exchangers and expanded to cryogenic temperatures. As the temperature lowers, the air converts into liquid form.
Fractional Distillation
The resulting liquid air is allowed to enter into distillation columns. Each gas has a different boiling point. Oxygen is separated from nitrogen and argon.
Liquid Oxygen Storage
Liquid oxygen is stored in insulated cryogenic tanks.
Components of a typical liquid oxygen plant are as follows.
l Air compressor system
l Air purification unit
l Cryogenic heat exchanger
l Cold box
l Distillation columns
l Liquid oxygen storage tank
l Liquid nitrogen storage tank
l Control and automation system
Capacity depends on industry usage.
Small Scale Liquid Oxygen Plants
These types of LOX plants are used for hospitals, laboratories and local cylinder filling facilities.
Medium Industrial Sized Plants
These oxygen plants service manufacturing plants and regional bulk gas distribution.
Large Cryogenic Oxygen Plants
Large industrial plants are used for steel mills, petrochemicals and energy productions.
Producing liquid oxygen has many benefits.
High Purity Oxygen Production
Through cryogenic separation you can produce oxygen with a purity greater than 99.6%.
Massive Hourly Output
A liquid oxygen plant can produce thousands of cubic meters of oxygen per hour.
Easier Storage and Transportation
Liquid oxygen requires less space than its gaseous counterpart. Transportation is made easier.
Continuous Running
Cryogenic plants can run continuously and reliably for years.
Liquid oxygen can be used in a wide variety of industries.
l Key Industrial Uses
l Producing steel
l Producing chemicals
l Supplying medical oxygen
l Producing glass
l Fueling aerospace and rockets
l Treating waste water
l Producing energy
Liquid oxygen has many uses as oxygen is used in burning and oxidation.
There are various factors that go into deciding what the ideal plant is.
l Demand of Oxygen
The plant should be able to produce enough oxygen to meet the daily requirements of the facility.
l Required Purity of Oxygen
Some industries may need higher concentrations of oxygen.
l Power Efficiency
The running costs of a plant are based on power usage and the design of the plant.
l Space Requirements
Large cryogenic plants require more space for installation.
By working with a professional manufacturer you can ensure you get the right plant.
Nanjing Bangwin Gas is professional industrial gas equipment supplier.
They have:
l Liquid oxygen plants
l Cryogenic air separation plants
l VPSA oxygen plants
l PSA oxygen generators
l Nitrogen generation systems
l Industrial gas storage tanks
Check them out here: https://bangwingas.com/
Engineering department can also offer service include system design, install and commissioning.
Authoritative industry references:
l Air Liquide Industrial Gas Solutions
https://www.airliquide.com
l Linde Engineering Cryogenic Systems
https://www.linde-engineering.com
How much purity can Liquid oxygen plant produce?
99.5% ~99.9% purity is common for cryogenic plant oxygen.
At what temperature is liquid oxygen kept?
Liquid oxygen temperature is around −183 °C.
Is Liquid oxygen costly to produce?
It takes a lot of energy to cool and compress the air in cryogenic plants, but if you require large quantities of oxygen it is more efficient.
Where is Liquid oxygen used most?
Liquid oxygen is mainly used in steelmaking, chemical industry, medicine, aerospace field and other industries.
Can I buy a turnkey oxygen plant from Nanjing Bangwin Gas Co.Ltd?
Sure, We could supply you the complete turnkey LPG oxygen plant which includes design, fabrication, installation and commission.
Liquid oxygen plants provide customers with an efficient method of producing oxygen. The cryogenic air separation process allows manufacturers to provide pure oxygen at high flow rates.
Partner with Nanjing Bangwin Gas and never run out of oxygen again. Increase your productivity with state of the art technology.
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