FIELD: machine building.
SUBSTANCE: present invention refers to method and device for processing exhaust gases (EG) generated at internal combustion engine operation (ICE). The device (15) for processing exhaust gases (EG) generated at internal combustion engine operation has evaporator (16) of reducing agent solution with evaporating unit (12) designed for evaporation of water solution (45) and containing one reducing agent precursor substance for preparation of gaseous mixture. The mixture shall contain one of the following substances: a) one reducing agent precursor substance and b) reducing agent connected to the evaporator (16) of reducing agent solution, hydrolysis catalytic agent (17), first of all urea hydrolysis to ammonia, and catalytic agent (18) of selective catalytic reduction (SCR-catalytic agent) of nitrogen oxides located in outlet duct (14) and differing by the fact that the evaporator (16) of reducing agent solution and hydrolysis catalytic agent (17) are located outside the outlet duct (14) with the possibility of connection with it, note that downstream there is thermal insulation (72) after the hydrolysis catalytic agent (17) that prevents thermal contact of catalytic agent (17) with the outlet duct (14).
EFFECT: invention allows reducing toxic level of exhaust gases.
10 cl, 12 dwg
