Cerium-based catalyst based method for reducing emission and denitrifying and removing dioxin of sintering smoke
A cerium-based catalyst, sintering flue gas technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of limited dioxin emission reduction effect, operation Complex, high price and other problems, to achieve the effect of low-temperature catalytic degradation, improve removal efficiency, and reduce emissions
Inactive Publication Date: 2018-08-24
ANHUI UNIVERSITY OF TECHNOLOGY
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The invention provides a cerium-based catalyst based method for reducing emission and denitrifying and removing dioxin of sintering smoke, and belongs to the technical field of treatment of sinteringsmoke. The method is characterized in that smoke flows through an emission reducing device in which a cerium-based catalyst is loaded; NH3 and air are blown into the emission reducing device; the cerium-based catalyst comprises Ce, Mn and Fe; the molar ratio of Ce to Mn is 0.25-1; Fe is an additive; the molar ratio of Fe to Mn is 0.25-0.5; the specific surface area of the catalyst is 80-90m<-2>g;the pore volume of the catalyst is 0.16-0.20cm<-3>g; the pore diameter of the catalyst is 5.0-6.0nm. According to the method, pollutants of the sintering smoke are subjected to emission reduction through the cerium-based catalyst, so that the dioxin and nitric oxide removing efficiency is improved; and the emission of the dioxin and the nitric oxide in the smoke can be reduced.
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Property | Measurement | Unit |
Aperture | 5.0 ~ 6.0 | nm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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