15-ton Chain Grate Boiler PNCR Denitrification Equipment

      Boiler flue gas denitrification and kiln denitrification equipment are one of the company's main businesses in both in-furnace and out-of-furnace denitrification. Shiheng Environmental Protection Company is a professional production technology enterprise dedicated to providing solutions in the field of environmental protection and energy-saving exhaust gas treatment.Currently, among the commonly used flue gas denitrification systems in China, after comparing SNCR, SCR, and PNCR, it has been found that the SNCR denitrification process is simple but has low denitrification efficiency, often failing to meet environmental requirements. In contrast, SCR denitrification offers high efficiency, but due to its complex process, expensive SCR catalysts, and high operation and maintenance costs, it tends to deter small and medium-sized enterprises.

     The 15-ton chain grate boiler flue gas treatment utilizes PNCR denitrification equipment. What is PNCR denitrification equipment? PNCR stands for Polymer Non-Catalytic Reduction (abbreviated as PNCR in English). It is a new technology for modern boiler and kiln flue gas denitrification in China and is an effective technical solution provided by our company for denitrification upgrades. This technology addresses a series of drawbacks associated with traditional desulfurization and denitrification methods.

      Principle of the 15-ton Chain Grate Boiler PNCR Denitrification Process:

      The principle of the PNCR denitrification process involves injecting solid powder material (polymer denitrification agent) directly into the boiler furnace using a delivery device. The injection temperature window is controlled within the effective range of 700–900°C. At high temperatures, the amino groups break the chemical bonds connected to the polymer and release a large amount of amino-functional group substances. These amino functional groups undergo a series of reactions with NOx in the flue gas, thereby achieving the goal of NOx removal.