FIELD: chemistry.
SUBSTANCE: invention relates to a method of adding oxygen to a liquid absorbent, which contains a compound, capable of reacting with oxygen, in a device (1) for gas purification. Used is the device (1), which contains a unit (16) for the absorbent circulation, made with a possibility of transferring the absorbent from the first place in the device (1) into the second place in the device (1), oxygen is added by adding air to the absorbent in the first point in the unit (16) for the absorbent circulation and a separating unit (16e), made with a possibility of separating gas, contained in the absorbent, from the absorbent in the second point, located above the first point, before return of the absorbent into the second place in the device (1), and a part of oxygen, contained in the air, is introduced into a reaction with the compound before its supply into the separating unit (16e).
EFFECT: possibility of adding a sufficient amount of oxygen to the absorbent and prevention of passage of nitrogen, the remaining part of oxygen and other gases, contained in the added air, which represent harmful admixtures, into the device 1 and their mixing there with purified gas.
8 cl, 2 dwg
