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A kind of preparation method of glass fiber filter material with v-mo-ti denitration system

A glass fiber and filter material technology, applied in the field of glass fiber filter material preparation, can solve the problems of high production cost, poor denitration effect, low dust content, etc., and achieve the effect of significant beneficial effect and good denitration ability.

Inactive Publication Date: 2017-08-01
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A kind of preparation method of glass fiber filter material with v-mo-ti denitration system

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preparation example Construction

[0024] The invention provides a method for preparing a glass fiber filter material with a V-Mo-Ti denitrification system, comprising the following steps: Step 1, preparation of dipping emulsion; Step 2, filter material dipping treatment; Step 3, high-temperature setting treatment;

[0025] Among them, the first step is to mix the precursor, carrier, co-solvent, surfactant and deionized water containing the catalyst active component to prepare an impregnation emulsion, wherein the precursor is ammonium metavanadate and ammonium heptamolybdate, and the carrier is titanium One or more of white powder, titanium tungsten powder, titanium tungsten silicon powder;

[0026] Wherein, the second step is to immerse the glass fiber filter material in the immersion emulsion for immersion treatment, and this step forms a uniform layer of V-Mo-Ti denitration catalyst impregnation coating on the glass fiber filter material;

[0027] Wherein, the third step is to subject the impregnated filter...

Embodiment 1

[0042] Carry out the preparation of the glass fiber filter material with V-Mo-Ti denitrification system according to the following steps:

[0043] Step 1, preparation of dipping emulsion, ingredients are carried out according to the following mass percentages:

[0044] Precursor

[0045] Ammonium Metavanadate 10%

[0046] Ammonium Heptamolybdate 5%

[0047] carrier

[0048] Titanium tungsten silicon powder 20%

[0049] Co-solvent

[0050] Monoethanolamine 1%

[0051] Oxalic acid 1%

[0052] Surfactant

[0053] Stearic acid 0.5%

[0054] Deionized water balance

[0055] Grind at high speed for 20 minutes, and put the impregnated emulsion into a horizontal dipping tank for later use;

[0056] Step 2, impregnation treatment of the filter material, passing the glass fiber filter material at an average speed of 1m / min in the horizontal immersion tank equipped with the catalyst-removing impregnated emulsion prepared in step 1;

[0057]Step 3, high temperature setting trea...

Embodiment 2

[0060] Carry out the preparation of the glass fiber filter material with V-Mo-Ti denitrification system according to the following steps:

[0061] Step 1, preparation of dipping emulsion, ingredients are carried out according to the following mass percentages:

[0062] Precursor

[0063] Ammonium metavanadate 1.7%

[0064] Ammonium heptamolybdate 3.3%

[0065] carrier

[0066] Titanium tungsten silicon powder 10%

[0067] Co-solvent

[0068] Monoethanolamine 0.5%

[0069] Oxalic acid 0.5%

[0070] Surfactant

[0071] Stearic acid 0.5%

[0072] Deionized water balance

[0073] Grind at high speed for 20 minutes, and put the impregnated emulsion into a horizontal dipping tank for later use;

[0074] Step 2, impregnation treatment of the filter material, passing the glass fiber filter material at an average speed of 1m / min in the horizontal immersion tank equipped with the catalyst-removing impregnated emulsion prepared in step 1;

[0075] Step 3, high temperature sett...

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Abstract

The invention relates to a method for preparing a glass fiber filter material with a V-Mo-Ti denitrification system, which belongs to the technical field of industrial denitrification, and comprises the following steps: Step 1, preparation of dipping emulsion; Step 2, filter material dipping treatment; Step 3, High temperature setting treatment. The technical solution uses the "dipping-heat setting" process on the glass fiber filter material to thermally decompose the precursor in the denitrification catalyst, and the formed catalyst powder is firmly combined with the glass fiber filter material, so that the surface of the filter material forms a "V- The denitrification structure of Mo‑Ti denitrification system makes the treated glass fiber filter not only retain the strong dust removal and PM2. The beneficial effect is 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83B01D39/14B01D39/20B01D53/86B01D53/56D06M101/30D06M101/22
CPCB01D39/14B01D39/2017B01D53/8625B01D2255/20707B01D2255/20723B01D2255/20769D06M11/83D06M2101/22D06M2101/30
Inventor 许小兵刘江峰徐辉
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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