FIELD: chemistry.
SUBSTANCE: invention discloses an energy-saving urea production system which includes: first synthesis column, second synthesis column, stripping column, high pressure carbamate condenser, high pressure scrubber, medium pressure decomposition system, low pressure decomposition system, vacuum preconcentrator, evaporation concentration and granulation system.
EFFECT: low power consumption of producing urea.
10 cl, 3 dwg
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