SCR Denitrification
Technical Features
Selective Catalytic Reduction (SCR) denitrification refers to the process in which, with the aid of a catalyst, a reducing agent (such as NH₃) is used to react ‘selectively’ with NOx in the flue gas, thereby producing non-toxic and pollution-free N₂and H₂O.
A dedicated SCR reactor must be constructed.
The denitrification process produces N₂ and H₂O, which are directly discharged without pollution.
The catalyst is selected based on the flue gas temperature.
The flow rate of the ammonia solution (or ammonia gas, urea solution) is easy to control and adjust.
The denitrification efficiency is high, reaching up to 98%.
Reducing Agents for SCR Denitrification
The reducing agents for denitrification include: liquid ammonia (NH₃), ammonia solution (NH₃·H₂O), and urea (CO(NH₂)₂).
SCR Denitrification Catalyst
The main components of the catalyst are V₂O₅, TiO₂, and WO₃.
Applicable flue gas temperature of the catalyst：Medium-temperature catalyst: 280°C – 420°C Low-temperature catalyst: 160°C – 280°C
