THE HYBRID DE-NOX SYSTEM FOR BOILER EMISSION

摘要

PURPOSE: A hybrid system for removing a nitric oxide inside boiler exhaust gas is provided to economically and effectively remove the nitric oxide without using a separate duct burner facility. CONSTITUTION: A hybrid system for removing a nitric oxide inside boiler exhaust gas comprises a SNCR/SCR auto-connection controller. The SNCR/SCR auto-connection controller stably treats the nitric oxide by selectively using a SNCR system(3) and a SCR system by the operation load of a boiler(1). The SNCR/SCR auto-connection controller controls the SNCR system and the SCR system by detecting the entrance temperature of the SCR system and the operation load of the boiler.