| abstract |
The invention discloses a kind of coke oven flue gas integration desulfurization denitration system, including desulfurization and denitrating system, desulphurization system includes flue gas conditioning subsystem, desulfurizing tower, washing subsystem and dry subsystem, and flue gas conditioning subsystem is sent into desulfurizing tower desulfurization after the temperature and humidity of coke oven flue gas is adjusted to setting value；Wash subsystem and liquid is sent into desulfurizing tower flushing absorption H 2 SO 4 Catalyst；Tail gas is sent into the catalyst after desulfurizing tower drying elution by dry subsystem；Denitrating system includes NO catalysis oxidizing towers, gas mixing subsystem and the denitration nitrogen-rejection column being connected with desulfurizing tower；Coke oven flue gas after desulfurization enters in NO catalysis oxidizing towers, and part NO is oxidized to NO 2 ；Gas mixing subsystem first mixes ammonia steam and air, then is mixed with the coke oven flue gas after catalysis oxidation；Denitration is carried out into denitration nitrogen-rejection column and denitrogenates processing, is discharged after being disposed.The system has the advantages that simple in structure, energy consumption is low, maintenance cost is low etc.. |