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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
Cryogenic Air Separation Process for High-Purity Industrial Gases
Nov 18 , 2025The cryogenic air separation process is still the most efficient way to produce large quantities of oxygen, nitrogen, and argon. Nanjing Bangwin Gas provides the most advanced cryogenic systems with stable purity and excellent performance. In addition, it also meets the needs of supporting industries to provide reliable and uninterrupted industrial gas supply. As a result, many factories purchase a cryogenic system to ensure long-term production stability.
https://bangwingas.com/air-separation-plant
The cryogenic air separation process cools the atmospheric air to very low temperatures and separates oxygen, nitrogen, and argon by their boiling points. The process liquefies the air in the first place. Then, the plant separates each gas through fractional distillation. Because the method is based on their natural boiling differences, the process provides consistent purity for every gas stream.
The cryogenic air separation process has a few simple steps.
l First, the system compresses the incoming air.
l Then, filters remove the dust, moisture, and CO₂.
l Next, the system cools purified air through a series of heat exchangers.
l After cooling, the air goes into the distillation column.
l Inside the column, the gases separate at different levels because each gas has a different boiling point.
l Finally, the system sends oxygen, nitrogen, and argon to the storage tanks as liquid or gas.
As a result, the whole cycle operates efficiently and continuously.
l The current cryogenic air separation plant is powerful
l The output of the product is high purity
l The gas cost of the long-term system is low
l The stability of the control system is monitored at each stage of the system
l The advanced refrigeration equipment has a high cooling efficiency
l The column is robust and has a long service life
l Liquid and gas products are available for flexible use
In addition, Nanjing Bangwin Gas has added strong automation and simple operation
A cryogenic plant has several key benefits, which include:
1. Extremely high purity that is often greater than 99.999%.
2. Support of huge output volumes which are beneficial for large manufacturers.
3. Energy-efficient, as the process remains energy-efficient for high-capacity production.
4. It lessens dependence on delivered gas.
5. Factories have complete control of supply stability.
6. Cryogenic systems run 24 hours a day without interruption.
A wide range of industries use the cryogenic air separation process.
l Steel and Metallurgy: Oxygen is used to improve combustion and smelting.
l Electronics: Nitrogen is used for inert protection of semiconductors.
l Chemical Plants: Oxygen is used for oxidation and synthesis processes.
l Food Packaging: Nitrogen is used for extended shelf life for packaged foods.
l Medical Fields: High-purity oxygen is used to support hospitals and laboratories.
l Energy Sector: Liquid oxygen and nitrogen can be used for various fuel and cooling needs.
Argon that is separated cryogenically can also be used for welding and metal fabrication.
The process flow involves the use of several systems. First, the compressor pressurizes the air to facilitate cooling. The dryer then dehumidifies the air to prevent damage. Next, the purifier filters the CO₂ and hydrocarbons. Heat exchangers then cool the air after purification to achieve cryogenic temperatures. The air liquefaction is complete after freezing. The distillation columns separate the gas components by freezing points. The system then collects oxygen, nitrogen, and argon and transfers it for storage or supply through pipes.
Advanced control software also monitors the purity and temperature in real-time.
Nanjing Bangwin Gas offers industry-leading cryogenic air separation systems. First, the systems are designed to ensure good energy performance. Second, all plants are manufactured to strict quality standards. Third, the company’s engineering team can support the full installation and training. Fourth, there are customized systems that can serve a wide range of purity and capacity requirements. Fifth, the company has clients worldwide that trust the system for stable performance and a long lifespan.
Furthermore,you can find more of such systems here: https://bangwingas.com/air-separation-plant
It is important to have the proper operation to ensure long-term reliability.
l Maintain clean intake filters to ensure purity.
l Inspect the compressors regularly.
l Monitor column pressure daily.
l Check heat exchanger performance every week.
l Manage the storage tank pressure properly.
l Train operators in cryogenic process safety.
Furthermore, scheduled maintenance can optimize the performance for many years.
Q1. What kind of purity can be reached by this cryogenic air separation process?
A1. It can reach 99.999% pure oxygen and nitrogen.
Q2. Will the system output liquid or gaseous products?
A2. Both products will be supplied by the plant.
Q3. What industries would need cryogenic separation?
A3. Steel, chemicals, food, electronics, and medical need it.
Q4. Will the plant operate 24/7?
A4. Yes, the process can support 24 hours of operation.
Q5. Can Nanjing Bangwin Gas provide full customization of the plant design?
A5. Yes, the company can fully customize it.
Cryogenic air separation process is the most popular way of generating high purity oxygen, nitrogen, and argon. The system is very stable with a high efficiency and output reliability for many industries. Moreover, the company can also provide state-of-the-art cryogenic systems that are built to last for a long time and maintain the same high quality. Thus, there are many companies that opt for cryogenic plants for mass production of gas.
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