Air separation process

The air separation plant should not only meet the production and purity standards, but also pay attention to many indicators, such as unit energy consumption, extraction rate, start-up time, operation cycle, heating and thawing time, safety, stability, etc. Therefore, each system plays an indispensable role in the air separation process.

News of Air separation process

Delegation from Qinzhou City of Guangxi Province for investigation and interchange in DEAR air separation

Sep 30, 2020

On September 24, a delegation from QinZhou Federation of Industry and Commerce of Guangxi province came to DEAR air separation for investigation and i

Kaifeng DEAR air separation held a training meeting on the Law of the People's Republic of China on the Prevention and Control of Solid Waste Pollution

Sep 11, 2020

On September 7, it was reported that in order to prevent and control environmental pollution by solid waste, protect public health, maintain ecologica

Faq of Air separation process

Brief principle of separating air by distillation

The air is mainly composed of 78.03% nitrogen and 20.93% oxygen and other gases. Air separation is to cool the air to a certain low temperature firstly and liquefy it into liquid air. Reuse two liquids oxygen and nitrogen with different boiling points (At atmospheric pressure, the boiling point of oxygen is - 183.98°C and that of nitrogen is - 195.8°C), separation is carried out in an air fractionator equipped with sieve plates. The air separation column is also called distillation column. Air distillation column can be divided into single-stage distillation column and double-stage distillation column, and single-stage distillation column can only produce one kind of pure product. Two stage distillation column is used to produce high purity nitrogen and oxygen in common air separation unit.

Oct 30, 2020