SCR Denitrification equipment

SCR denitrification equipment


To remove the primary pollutant, NOX ,which can undergo chemical reactions in the atmosphere to form secondary pollutants, such as Photochemical smog, in order to reduce the production of photochemical pollutant in Earth‘s atmosphere to protect Earth.

Reaction principle

Selective Catalytic Reduction (SCR). Use NH3 as reductant agent and inject it into the system in a certain proportion (NH3/NOX) (usually equivalent to the NOX concentration) and fully mix with the exhaust gas. In the condition of Oxygen existence, after the catalytic reaction of catalyst, the NOX would be reduced to harmless N2 and H2O.

The main reaction of NH3 –SCR can be expressed as:

4NO + 4NH3 + O2 → 4N2 + 6H2O

Application field

Processing type:

coal-fired power plant and steam boiler system.

Applicable fuels:

natural gas, industrial and fuel gas, crude oil, powder coal.

Gas flow:


Gas temperature:


Airflow direction:

horizontal, vertical up, vertical down.

Ammoniation system:

Ammonia, ammonia water, urea.

NOX removal rate:


Features of RITEX SCR technology

  • Adopt high temperature SCR design which is suitable for exhaust temperature 300~320℃.
  • Adopt low pressure loss design to reduce the possibility of pressure loss and blockage
    ( < 50mmaq )
  • Real-time monitoring the exhaust gas temperature and NOx concentration, and injecting an appropriate amount of NH3 to ensure the processing efficiency.
  • Reserve SCR space and according to the processing goal of actual NOx concentration to set the SCR amount.
  • Automated design to reduce labor cost.