FIELD: chemistry.
SUBSTANCE: invention relates to device for evaporation of aqueous urea solution and can be used for provision with gaseous ammonia, applied in systems for reducing toxicity of exhaust gases in automobiles. Device (1) for evaporation of aqueous urea solution includes feeding channel (2), intended for supply of aqueous urea solution and passing through at least one first zone (3), in which it has first along its first input section (11) rectangular shape (7), and then meander-like shape (6), and one second zone (4) for supply of heat energy, in which it first has along its second input section (5) meander-like shape (6), and then has rectangular shape (7), and in first zone (3) aqueous urea solution is heated to temperature within the range from 100 to 150°C, and in second zone (4) it is evaporated at temperature within the range from 420 to 490°C.
EFFECT: invention makes it possible to carry out fast and complete evaporation of aqueous urea solution with low content of undesired by-products and considerably reduce clogging of evaporator of aqueous urea solution.
8 cl, 3 dwg
