Technology Introduction: selective catalytic reduction technology called SCR technology. Decomposition of NOx at a low temperature from a thermodynamic standpoint, the reaction can be carried out, but the activation energy of the reaction is too high, in order to make the NOx is converted to N2, the reducing agent need to be added during the reaction. By using an appropriate catalyst, by reduction of N can smoke off in the temperature range 200 ~ 450 ℃, the company in the introduction of foreign technology, based on the independent development of a set of SCR DeNOx technology. Provides advanced honeycomb catalyst design, manufacturing and testing technology, the introduction of foreign advanced compounding extruder and other key equipment, design and manufacturing of cellular denitration catalyst. In the SCR process, the catalyst placed in the reactor housing. The catalyst unit is usually arranged vertically, down from the flue gas flow. The process has a high NOx removal efficiency, small secondary pollution features, but its high investment costs and operating costs, denitrification process, many factors, the key technical difficulties, and therefore the need for further research and development, reduce their investment and operating costs