The external compression process is that the air is pressurized, cooled, purified, and then produced by direct low-temperature rectification of the distillation column to produce low-pressure oxygen or nitrogen, and then reheated out of the cold box by the main heat exchanger, and pressurized to the required pressure by the oxygen (nitrogen) compressor, which is also known as conventional air separation equipment.

※System characteristics of external compressed air separation equipment：

1. Advancement：
Our company adopts the latest international technology to replace the old generation of multiple refrigerating machine, which has made an outstanding contribution to the field of low temperature air separation area.

2.Low power consumption：
The latest international technology adopted by our company can greatly reduce the energy consumption per unit of product gas, saving 30-40 energy consumption compared with similar products。

3.Low temperature：
Our company adopts the latest technology, low temperature air temperature range is large, covering -60 degrees to -180 degrees。

4.Small footprint：
Our company adopts skid block integrated structure, easy installation, small floor area, widely used in pharmaceutical, chemical, low temperature reaction, scientific research and other fields。

5.Continuous gas supply：
Strong continuous gas supply capacity, long time, equipped with a backup gas source in case of emergency, can ensure no intermittent gas supply。

※Technical specifications：

Main parameters of external compressed air separation equipment

Product oxygen flow：500~3000Nm3/h；

Product nitrogen flow：800~4500Nm3/h；

Oxygen purity：99.6-99.9%；

Nitrogen purity：99.9-99.999%；