AMMONIA-INJECTING SYSTEM AND AMMONIA-INJECTING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an ammonia-injecting system and an ammonia-injecting method capable of appropriately adjusting the amount of ammonia injected to exhaust gas.;SOLUTION: The ammonia-injecting system for injecting ammonia to a draft 4 for causing the exhaust gas produced by combustion of fuel to flow therethrough includes: an injection device 13 which injects ammonia to the draft 4 and adjusts the amount of injection of ammonia; and a controller 16 which calculates the rate of injection of ammonia by using the flow rate of fuel, the amount of the exhaust gas exhausted by combustion of the fuel, the concentration of sulfur oxide in the exhaust gas and a set value which is set beforehand, and controls the amount of injection of ammonia by means of the injection device 13 based on the rate of injection of ammonia.;COPYRIGHT: (C)2010,JPO&INPIT