SNCR/SCR denitrification technology

SNCR technology, namely selective non-catalytic reduction technology.

The core of the technology is to spray urea reductant into the furnace chamber for the reduction reaction with the help of flow field simulation analysis and process design. The reductant is rapidly thermally decomposed into NH3 and other by-products, followed by the SNCR reaction of NH3 with NOx in the flue gas to produce N2 and H2O.

It is one of the current leading flue gas denitrification technologies, and the reaction temperature zone of NH3 is 850-1250℃. 

The SCR denitrification process uses a catalyst to cause a selective catalytic reduction reaction between NOx in the flue gas and ammonia from the reductant supply system at a specific temperature (270~400°C) to produce nitrogen and water, thereby reducing NOx emissions and mitigating flue gas pollution to the environment.

Our design experts have rich experience in denitrification engineering design and use flow field simulation to provide customized solutions for project characteristics after detailed CFD simulations and CKM calculations. The CFB simulation includes

- Determining the adequate boundary conditions for key process parameters;

- Testing the effectiveness of the step-by-step reductant strategy;

- Determining the temperature field and concentration of flue gas constituents at each point in the boiler.

CKM calculates the time and temperature of each chemical reaction. We develop accurate process design plans and layouts to provide professional services to buyers. Additionally, we apply a brand-new injector, combined with the process design, to improve the denitrification efficiency.