Ceramic fiber catalytic filter element and integrated preparation method thereof

Abstract

The invention relates to a ceramic fiber catalytic filter element and an integrated preparation method thereof. The integrated preparation method includes the following steps: (1) preparing catalyst slurry from a catalyst, and preparing ceramic short fiber slurry from ceramic short fibers; (2) loading an inorganic fiber cloth with the catalyst slurry prepared in the step (1), and performing heat curing to obtain a catalytic filter cloth; and (3) loading the catalytic filter cloth prepared in the step (2) with the ceramic short fiber slurry prepared in the step (1), performing filament windingon a vacuum mold, performing demolding, and performing drying to obtain the ceramic fiber catalytic filter element. The integrated preparation method has the advantages of a simple process, a small occupied space, lower costs, and an adjustable preparation size; and the prepared ceramic fiber catalytic filter element has the characteristics of uniform distribution of the catalyst, high porosity, high mechanical strength, and excellent abrasion resistance.

Description

technical field [0001] The invention relates to the field of flue gas purification, in particular to a ceramic fiber catalytic filter element and an integrated preparation method thereof. Background technique [0002] With the rapid development of the national economy, the problem of regional air pollution characterized by nitrogen oxides and dioxins in my country has become increasingly prominent. Nitrogen oxides are an important cause of smog, which can cause acid rain, photochemical smog and other phenomena. Dioxins are carcinogens that can cause serious reproductive and developmental problems and seriously affect the immune system. In the face of increasingly severe environmental problems, the country has introduced a series of measures to formulate strict air pollutant emission standards, and researchers have also stepped up research and development of flue gas purification technology. However, there are still some weak points in flue gas purification technology at pr...

AI Technical Summary

Problems solved by technology

However, these preparation methods generally have problems such as complex process, high cost, and inability to realize the integrated preparation of catalyst and ceramic filter material.

The prepared ceramic catalytic filter materials also have problems such as low porosity, low mechanical strength, difficult adjustment of size, difficulty in preparation of large-size levels, and high cost.

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