Cryogenic Air Separation Plant

Cryogenic Air Separation Plant

Cryogenic air separation plants are industrial facilities that actively separate atmospheric air into its primary components: nitrogen, oxygen, and argon.
These plants employ cryogenic technologies, which cool the air to exceptionally low temperatures, enabling efficient separation.
As a leading manufacturer and supplier in the industry, we specialize in manufacturing cryogenic air separation plants. Our expertise lies in producing high-quality air separation units that utilize cryogenic technologies.

Solution of Air Separation Plant – DSW

Oxygen, nitrogen, or argon plants built to your specifications

DSW can supply large volumes of oxygen, nitrogen, and argon directly or can set up an Air Separation Plant at their site to generate it – providing customers with the ideal individual solution.

What is an air separation unit?

Air separation is an efficient method to extract one or all of the significant constituents from atmospheric air, such as nitrogen (78.1%), oxygen (20.9%), and Argon (0.9%). Most remaining gases found in trace quantities typically cannot be recovered, although larger air separation units (ASUs) often recover some Neon, Xenon, and Krypton in trace amounts.

Cryogenic air separation utilizes air components’ differing condensation/boiling points to facilitate separation by distillation at cryogenic temperatures.

At atmospheric pressure, the main components of air have the following condensation/boiling points:

Nitrogen’s temperature of 324.4 deg F, Oxygen at 297.3, and Argon at 302.5deg F are all examples of natural air, thus making liquefying and distilling an efficient method for isolating Nitrogen, Oxygen, and Argon from it. All ASUs utilize this process.

1、Design Condition

Cryogenic Air Separation Plant

2、Main Technical Data

oxygen nitrogen air separation 1

3. Performance Guarantee

3.1 Base conditions
The performance guarantee value of the plant specified in this project shall have the linkage test condition after the device’s installation and acceptance. After the confirmation by party b, continuous performance assessment at full load (including mechanical performance assessment) shall be conducted, and the assessment results shall be taken as the basis for equipment acceptance

3.2 Performance Guaranteed Value
Under the design condition 1, the equipment can meet the following output:

Oxygen Nitrogen Air Separation Plant

Oxygen Nitrogen Air Separation Plant
Oxygen Nitrogen Air Separation Plant

Oxygen Nitrogen Air Separation Plant

Oxygen Nitrogen Air Separation Plant

Manufacturing Process of Air Separation Units

There are five basic processes for producing oxygen and nitrogen: compression, purification, cooling, separation, and cylinder filling.
Air Compression: We use the latest air-cooled air compressors to compress the atmospheric air. The equipment has a suction filter to suck the atmospheric air and leave behind the impurities mixed with it.
Air Purification: Even after using high-quality air compressors, which have attached suction filters, a few impurities, such as carbon dioxide, dust, etc., get inside the air. Such contaminants are alleviated in this second stage by using a process skid.
Air Cooling: To make the air-liquid, the purified air must be cooled to -165 to -170 degrees centigrade. This is because liquid air gets separated easily. For this purpose, we have high-end and advanced expenders.
Air separation: Once the air becomes liquid, the air separation units separate the air into oxygen and nitrogen. We use stainless steel units as they do not react with oxygen and thus guarantee pure outputs.
Cylinder filling by Liquid Oxygen Pumps is the last step, where we have liquid oxygen pumps to fill in cylinders at the required pressure. With liquid oxygen pumps, there is no gas loss while cylinders fill in.