METHOD FOR PURIFICATION OF POLLUTED AIR Russian patent published in 2023 - IPC B01D53/47 B01D53/96 

FIELD: polluted air treatment.

SUBSTANCE: in this polluted air purification method, the polluted air is passed through one of the adsorbers, and the purified air is released into the atmosphere. At the same time, in another adsorber, the regeneration process is carried out with purified air at a pressure lower than the operating pressure of adsorption. After filtering the polluted air, it is fed into the reactor chamber, into which ozone is also supplied, and the air supplied to the chamber is mixed with ozone to oxidize the polluted air. The resulting mixture of gases is fed into the inlet channel of the adsorber, and the adsorbing material is composed of a layer of an inlet spherical ceramic structure for uniform distribution of the supplied medium, layers of an inorganic porous structure that are separated by an unfilled volume and an outlet layer of a spherical ceramic structure for balancing the purified air leaving the receiver, directed to the atmosphere through the open outlet valve of the canister outlet channel. Achieving the temperature of the gas leaving the regenerating adsorber is carried out by heating the adsorber to directly heat the adsorbent material to a temperature of 40-50 degrees. The adsorber heating is turned on when the absolute pressure in the regenerating adsorber does not exceed 500 Pa and the gas flow through the regenerating adsorber is provided at a value of 1-1.5 of the adsorber vessel volume per minute. The adsorber heating of is turned off, and its purge is continued with the same gas flow rate until the temperature of the adsorbing material does not exceed 25 degrees.

EFFECT: improved efficiency of the polluted air purification process.

1 cl, 1 dwg