Denitration of non-selective catalytic reducing smoke
A non-selective, denitrification technology, applied in chemical instruments and methods, dispersed particle separation, separation methods, etc., can solve the problems of reduced boiler thermal efficiency, increased exhaust heat loss, and increased production volume, reducing operating costs and reducing costs. The effect of flue gas denitration process
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[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] The denitrification device is composed of a boiler furnace 1, a horizontal flue 2, a tail flue 3, and a catalytic reactor 9 in series. The burner 4, the exhaust gas inlet 5, and the fine coal powder are arranged in the boiler furnace 1 from bottom to top. The injection port 6 is provided with 7 layers of NSCR catalyst and 8 layers of oxidation catalyst in the catalytic reactor 9 at the rear of the tail flue 3, and the oxidation catalyst 8 is arranged downstream of the NSCR catalyst 7. The fuel is burned in the boiler furnace 1, and 100% of the fuel required by the coal-fired unit is added at the position of the burner 4. At the same time, according to the specific coal type (mainly distinguished by volatile content), the equivalent air coefficient required for 0.75-85% of the fuel is added , The remaining air volume required for combustion is added at the overfire a...
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