| 摘要 |
PURPOSE:To surely decompose and remove NOx without discharging recovered NOx and an unreacted reducing agent used to decompose the NOx outside the system in the method for removing NOx from the exhaust in a tunnel, etc. CONSTITUTION:A gas desorbed from a main adsorber 4 is added with a reducing agent and introduced into a reactor 12. In this case, at least an auxiliary adsorber 17 is provided on the downstream side of the main reactor 12 to adsorb the unreacted NOx and/or reducing agent with the auxiliary adsorber 17, and then the gas is discharged into the atmosphere. |
