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[Chemical Knowledge]：Principle of air separation unit: essential core equipment in industrial oxygen generation technology

Read： 282 Time：19months ago Source：Transform the World with Simplicity

Air separation unit is an essential core equipment in industrial oxygen production technology. It separates air into oxygen, nitrogen, inert gas and other gases through molecular sieve, cooling, membrane separation and other technologies. The main principle of the air separation device is to use the physical characteristics of air to separate it into gases of different components under certain conditions.

air separation units are generally divided into two types: cooling and adsorption separation. The cooling method is to cool the air through a multi-stage cooler, so that the boiling point of different gases is different, so as to achieve the purpose of separation. The adsorption separation method is through the air load on the material with special adsorption, the use of different gases on the material adsorption rate is different, resulting in different adsorption capacity of the separation effect. Because the adsorption separation method can obtain higher separation efficiency, it is widely used in industrial oxygen production.

In addition to the cooling method and adsorption separation method, membrane separation method is also the use of a wide range of air separation device technology, membrane separation method mainly through the selection and design of composite membrane to achieve the separation of different gases. In recent years, with the continuous development of membrane separation technology, the air separation unit has a wide range of applications in the preparation of high-purity gases and gas mixtures.

air separation device has a wide range of applications. Industrial oxygen production, hydrogen production and other fields are inseparable from the support of air separation units. In industry, air separation unit is widely used in metallurgy, chemical industry, electric power, mining and other fields, providing oxygen, nitrogen, inert gas and other industrial raw materials. In addition, medical, food, electronics and other industries also need to use high-quality oxygen, nitrogen and other gases, so air separation devices have also been widely used in these fields.

To sum up, as an indispensable core equipment in industrial oxygen production technology, the principle, classification and application of air separation plant have been widely studied and applied. In the future, with the continuous development of gas technology, the application prospect of air separation device in industry and life will be broader.

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