FIELD: engines and pumps.
SUBSTANCE: inventions may be used in production of engines. Device is intended for preparing gas mix containing, at least, one of the following substances: reducing agent and its precursor. Proposed device comprises supply tank for water solution 45 of reducing agent precursor communicated with evaporation chamber 24, device to dispense said solution 45 into evaporation chamber 24 and evaporation chamber heater 27. Evaporation chamber is heated to 350-450°C whereat said water solution is completely evaporated. Hydrolysis catalyst 17 is arranged downstream of evaporation chamber 24. Hydrolysis catalyst 17 is furnished with means 31 to maintain uniform temperature therein. Heat capacity of hydrolysis catalyst 17 does not exceed 60 J/K.
EFFECT: ruled out local cooling, efficient hydrolysis.
12 cl, 24 dwg, 1 ex
