FIELD: chemistry.
SUBSTANCE: invention relates to the production of ammonia gas and CO2 for the synthesis of urea. Disclosed is a method in which process gas (2) containing nitrogen, hydrogen and carbon dioxide as main components is obtained from smelting gas (1) consisting of a gas mixture formed from blast furnace gas and converter gas. Further, said process gas (2) is separated to obtain gas stream (6) containing CO2, and gas mixture (5) consisting essentially of N2 and H2. Then from said gas mixture (5), using ammonia synthesis (7), gaseous ammonia (8) is obtained, which is suitable for urea synthesis (9), and from said gas stream (6) containing CO2, CO2 with purity and in an amount suitable for urea synthesis (9), is collected.
EFFECT: technical result consists in providing an efficient method for producing gaseous starting materials for synthesis of urea.
15 cl, 1 dwg, 1 ex
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