Catalyst for denitrification and dedioxin

Abstract

The invention relates to a denitration and dioxin removal catalyst, which belongs to the field of environmental protection catalyst. The denitration and dioxin removal catalyst forms a Mo, V, W / TiO2, Al2O3 system between the components of the catalyst, aluminum oxide and nano-titanium dioxide carriers, and realizes denitration functions by means of the active components Mo, V, W and carriers TiO2 and Al2O3. Meanwhile, the denitration and dioxin removal catalyst can decompose dioxin into HCl, CO2 and H2O by means of the V, W, Ti, Mo system composed of transition metal, so as to have the functions of denitration and dioxin removal and effectively simplify the structure of the emission filtration and discharge equipment to reduce the environmental protection cost. Moreover, the denitration and dioxin removal catalyst has the advantages of high dust resistance and interference ability, and can still play the largest in filtration without frequent shutdown for cleaning up the fouling, so that the aging of the catalyst is in uniformity, enabling strong filtration ability and long service life.

Description

technical field [0001] The invention relates to a catalyst for denitration and dedioxin removal and a preparation method thereof, belonging to the field of catalysts for filtering polluted gases. Background technique [0002] With the development of my country's economy, my country's coal energy consumption and the number of motor vehicles have increased significantly, resulting in a rapid increase in the content of various pollutants in the air. After decades of hard work, my country has achieved some success in controlling dust and sulfur dioxide pollution, but the pollution of dioxin and nitrogen oxides has not yet been controlled. Therefore, how to effectively control the discharge of dioxins and nitrogen oxides has become the focus of the current environmental protection field. [0003] Traditional catalysts can only filter dioxins or nitrogen oxides in one direction, which leads to complex equipment structure and increased production costs when filtering mixed flue ga...

AI Technical Summary

Problems solved by technology

[0003] Traditional catalysts can only filter dioxins or nitrogen oxides in one direction, resulting in complex equipment structure and increased production costs when filtering mixed flue gas

Moreover, traditional catalysts rely on honeycomb catalysts for filtering operations. This catalyst has a simple structure. However, once large particles enter the catalyst, the entire honeycomb strip will be blocked and cannot perform normal filtration reactions.

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