METHOD FOR PLASMA-PHOTOCHEMICAL AIR PURIFICATION AND APPARATUS THEREFOR Russian patent published in 2015 - IPC B01D53/86 

FIELD: chemistry.

SUBSTANCE: invention relates to inorganic chemistry, catalytic and photocatalytic purification of gases, including air. An apparatus and a method for plasma-photochemical purification of air from molecular contaminants, which includes trapping coarse particles with a mechanical primary filter, activating the gas by passing said gas through a plasma-negative corona discharge zone to form radicals and ozone, photo-oxidation with decomposition of the trapped impurities under the effect of radiation of light-emitting diodes (LEDs) with wavelength of less than 0.38 mcm on the surface of a photocatalytic filter with a TiO₂-based photocatalyst deposited on an air-permeable support, and sorption of residues of oxygen-containing molecular compounds and intermediate oxidation compounds on pores of an activated carbon filter. According to the invention, radiation is generated using LEDs whose pulse mode is realised through a pulsed amplifier.

EFFECT: efficiency of the method for combined plasma-photochemical purification of air from molecular contaminants.

3 cl, 2 dwg