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SCR (Selective Catalytic Reduction) - Selective Catalytic Reduction process denitration technology is currently the most widely used international flue gas denitration technology, in Japan, Europe, the United States and other countries and regions of the most basic application of this technology in power plant, it has no by-products, do not form secondary pollution, the device has the advantages of simple structure, and high removal efficiency (up to more than 90%), reliable operation, easy maintenance, etc.

SCR technology principle is: under the catalyst, the temperature of about 280 ~ 420 ℃ in flue gas is sprayed into the ammonia, NOX reduction into N2 and H2O.