Liquid Air Separation Unit

Short Description:

In liquid air separation plants, the product of air separation is liquid oxygen or nitrogen. The principle is as follows: pressurized, pre-cooled air is introduced into the column to participate in rectification, H₂O and CO₂ are removed via a molecular sieve absorber, cooled to liquefaction temperature in the medium pressure heat exchanger, and then introduced into the column to participate in rectification. The high and low temperature expander and circulating compressor are used to generate cold energy to obtain liquid oxygen and nitrogen products.

Liquid air separation plants typically include an air filter, an air pre-cooling system, a molecular sieve purification system, a high and low temperature expander, a recirculating compressor, a cryogenic freezer, a fractionation column system, and a backup system.

Send email to us

Product Detail

Product Tags

Application

Liquid air separation plants are widely used in petroleum, chemical, power, metallurgy, paper, light industry, pharmaceutical, food, shipbuilding, etc.

-It is an advanced and reasonable process. It can not only run continuously for a long time, but also has a large liquefaction amount and low energy consumption.

- It uses high and low temperature pressurized turbo expander. This saves energy and has a high liquefaction rate.

Advantages

- It adopts a circulating compressor, which has a small size, high efficiency and low unit energy consumption.

- The cold box uses a cryogenic freezer to save energy and increase efficiency.

- Long cycle molecular sieve purification system is used.

- Structured packing is used in the upper column.

- Fully distilled hydrogen-free argon system.

- The DCS (Distributed Control System) is adopted.

Other Advantages

1. Lianfeng has set up a remote monitoring system in Xi'an.

2. A professional service team, long-term user management and training and guidance, regular visits from relevant personnel.

3. Lianfeng's vision is to be the leader in energy saving and environmental protection for enterprises, to continue to reduce costs for them, and to become their energy saving and environmental protection guardian.