Cryogenic air separation equipment is an advanced technology based on the liquefaction of air, which can effectively separate nitrogen, oxygen and argon. This process is called cryogenic air separation.
Cryogenic air separation nitrogen working principle
In the initial stage, the air is compressed by a compressor, then passes through a heat exchange unit, and then expands in an expander or throttle valve, cooling to 93 K, and finally converting it into liquid air.
Next, through further separation of the liquid air, mainly liquid nitrogen and liquid oxygen are extracted. This process depends on the difference in boiling points of each component: oxygen has a boiling point of 90.18 K and nitrogen has a boiling point of 77.36 K. This separation process is repeated on a special sieve plate, and finally liquid oxygen, argon and nitrogen are generated.
Gas separation principle
The operation of the cryogenic air separation plant is based on the cryogenic distillation method, which uses the difference in boiling points of air components and the difference in equilibrium of liquid and vapor mixture components. During the cryogenic separation process, the air components in the liquid and gas phases come into contact to achieve the exchange of mass and heat. As a result, the gas phase is enriched with low-boiling components (nitrogen), while the liquid phase is enriched with high-boiling components (oxygen).
Cryogenic air separation nitrogen advantages
The cryogenic method is the only method that can provide high-purity separation and high extraction rates at any product quantity, which is essential for achieving high efficiency. In addition, the method can produce multiple separation products at the same time, both in gaseous and liquid form. The more products produced, the more efficient the plant can be operated, providing greater technical flexibility.
Hot Tags: cryogenic air separation nitrogen, China cryogenic air separation nitrogen manufacturers, suppliers, oxygen plant air separation unit, Carbon Dioxide Manufacturing Plant, co2 plant, Liquid CO2 Refinery Plant, Liquid Co2 Production Plant, liquid oxygen plant and liquid nitrogen plant
