Preparation method of glass fiber filtering material with V-Mo-Ti denitration system

Abstract

The invention relates to a preparation method of a glass fiber filtering material with a V-Mo-Ti denitration system and belongs to the technical field of industrial denitration. The preparation method comprises the following steps: step 1, preparing impregnation emulsion; step 2, carrying out impregnation treatment on a filtering material; and step 3, carrying out high-temperature shaping treatment. With the adoption of the technical scheme, impregnation-hot shaping process treatment is carried out on the glass fiber filtering material so that a precursor in a denitration catalyst is thermally decomposed and formed catalyst powder is firmly combined with the glass fiber filtering material; and furthermore, a denitration structure of the V-Mo-Ti denitration system is formed on the surface of the filtering material and the treated glass fiber filtering material keeps relatively strong dustproof and PM2.5-prevention functions of the glass fiber filtering material and also has a good denitration capability at about 200 DEG C, and the beneficial effects are remarkable.

Description

technical field [0001] The invention relates to a preparation method of a glass fiber filter material with a V-Mo-Ti denitration system, belonging to the technical field of industrial denitration. Background technique [0002] With the vigorous development of my country's economy, the total amount of NOx emitted by the cement industry is increasing. At the same time, the country's requirements for environmental protection standards are becoming more and more stringent. At present, my country's cement kiln denitrification technology is still in its infancy. The reactor adopts low-dust and low-temperature arrangement, so it is generally arranged after the dust collector. At this time, the dust content in the working environment of the denitrification reactor is low, and the flue gas temperature is only about 200°C, and the denitrification catalyst commonly used in the denitrification reactor Most of the catalytic temperatures are higher than 300 ° C, resulting in poor denitrific...

AI Technical Summary

Problems solved by technology

[0002] With the vigorous development of my country's economy, the total amount of NOx emitted by the cement industry is increasing. At the same time, the country's requirements for environmental protection standards are becoming more and more stringent. At present, my country's cement kiln denitrification technology is still in its infancy. The reactor adopts low-dust and low-temperature arrangement, so it is generally arranged after the dust collector. At this time, the dust content in the working environment of the denitrification reactor is low, and the flue gas temperature is only about 200°C, and the denitrification catalyst commonly used in the denitrification reactor Most of the catalytic temperature is higher than 300 ℃, resulting in poor denitrification effect, and because of the need to use two sets of equipment for dust removal and denitrification, the production cost is high