Principle and Process Introduction of SNCR Denitrification for Coal-fired Boilers

          Flue gas denitrification is a new term in current environmental protection. So, what is denitrification? Denitrification refers to the treatment process of removing nitrogen oxides (NOx) from flue gas. The main denitrification technologies include SCR, SNCR, and PNCR. Below, the SNCR denitrification process used in SNCR denitrification equipment is introduced as follows:

     SNCR Denitrification Principle and Process:

     Simply put, the SNCR denitrification process utilizes the designed high temperature and high pressure in the SNCR denitrification equipment to facilitate certain chemical reactions of nitrogen oxides in the flue gas under the oxidation of ammonia or urea, converting them into harmless nitrogen and water vapor.

     Compared to SCR denitrification, SNCR denitrification technology has lower investment costs, shorter construction cycles, moderate denitrification efficiency, and does not require catalysts.It occupies a small area andis more suitable for production enterprises with limited funds and for retrofitting existing small and medium-sized boilers.

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