Catalyst prepared from nano technology and used for nitrogen oxygen compound purification and preparation method of catalyst

Abstract

The invention discloses a catalyst prepared from a nano technology and used for nitrogen oxygen compound purification and a preparation method of the catalyst. The catalyst uses cordierite honeycomb ceramic as a carrier, each component distributed at the surface of the carrier and the content of each component are as follows, by weight: 15-35 parts of silicon dioxide, 10-30 parts of aluminium oxide, 2-10 parts of copper ions, 2 parts of sodium oxide, 5 parts of ferric oxide, and 5 parts of the catalyst. The preparation method of the catalyst comprises the following steps: 1, an oligomer is formed from a precursor of a nano skeleton molecule, a transition metal salt and a template agent through a co-assembly method; 2, the oligomer is assembled to a nano mesoporous structure; 3, a nano material with catalytic activity is obtained through an aging and roasting process; 4, the surface of the cordierite honeycomb ceramic is coated with the nano material with the catalytic activity; and 5, drying is performed on the cordierite honeycomb ceramic which is coated with the nano material, and therefore the catalyst prepared from the nano technology is obtained. The preparation method is simple, and the applicable range is wide; the catalyst can be directly subjected to a catalytic reaction, auxiliary equipment does not need to add, and the costs are low; and the treatment effects on high-temperature flue gases are good

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a nitrogen oxide compound purification nanotechnology catalyst capable of direct catalytic reaction, high-temperature flue gas treatment effect and low cost and a preparation method thereof. Background technique [0002] With the continuous rapid growth of my country's economy and the significant increase in the production and ownership of motor vehicles, NOx emitted by motor vehicles has become one of the primary sources of air pollutants in large and medium-sized cities. NOx is one of the main pollutants in the atmosphere, including NO, NO 2 , N 2 O, N 2 o 3 and N 2 o 4 . NOx can lead to the greenhouse effect, ozone depletion, acid rain and photochemical smog formation, which poses a serious threat to the environment and human health. Therefore, NOx emission control has become a research hotspot in the field of atmospheric environmental protection technology. [0003]...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the purification effect of nitrogen oxides is not ideal; in addition, due to the addition of flue gas waste heat utilization devices, its cost is greatly increased, and management is more troublesome

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