Denitration and demercuration catalyst

Abstract

The invention relates to a denitration and demercuration catalyst and belongs to the field of environment-friendly catalysts. Components of the catalyst form a Mo-V-W/TiO2-Al2O3 system, the functions of denitration and demercuration are achieved at the same time under the effect of the active components Mo, V and W and the carrier TiO2-Al2O3, the structure of tail gas filtering and exhausting equipment can be effectively simplified, and environmental protection cost is reduced. In addition, the catalyst has high dust interference resisting capacity, and still can exert maximum filtering performance on the basis that no frequent halt is needed for removal of accumulated dust, and the catalyst is uniform in aging speed, high in filtering-out capacity and long in service life.

Description

technical field [0001] The invention relates to a denitration and demercuration catalyst 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 mercury and nitrogen oxide pollution have not yet been controlled. Therefore, how to effectively control the emission of mercury and nitrogen oxides has become the focus of the current environmental protection field. [0003] Traditional catalysts can only filter mercury or nitrogen oxides in one direction, which leads to complex equipment structure and increased production costs when filtering mixed flue gas. Moreover, ...

AI Technical Summary

Problems solved by technology

[0003] Traditional catalysts can only filter mercury or nitrogen oxides in one direction, which leads to 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.