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Denitration catalyst

A denitrification catalyst and catalyst technology, applied in the field of denitrification catalysts, can solve the problems of high cost, low catalytic efficiency, and large amount of catalyst, and achieve the effects of reducing the amount and cost of use, increasing the specific surface area, and enhancing physical properties

Inactive Publication Date: 2011-09-14
RAGA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Nitrogen oxides (NO X ) is a kind of air pollutant with great harm, which will cause certain damage to human health and the survival of animals and plants, such as the formation of acid rain, photochemical smog, etc. Today, with the increasing awareness and requirements of environmental protection, how to remove nitrogen oxides The emission of pollutants has become an increasingly urgent problem. At present, nitrogen oxides in my country are mainly produced from coal combustion and industrial smoke emissions. Although the catalysts traditionally used to remove nitrogen oxides can remove nitrogen oxides to a certain extent, however, There are still shortcomings such as low catalyst strength, easy pulverization, resulting in short service life, unsatisfactory porosity, low catalytic efficiency, large amount of catalyst, and high cost.

Method used

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  • Denitration catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] According to the following proportions, weigh each component of the following parts by weight:

[0023] Titanium dioxide (10-50nm) 70 parts

[0024] Tungsten trioxide 9 parts

[0025] Vanadium pentoxide 1.5 parts

[0026] Aramid (aramid 1414) 2.5 parts

[0027] Pulp cotton (purchased from American Jessup LD-E pulp cotton) 2 parts.

[0028] Then the above-mentioned raw materials are prepared into finished products according to the following production steps. The preparation technology of the denitration catalyst of the present invention is prepared by the conventional technology in the industry. The general process is as follows: mixing of raw materials after weighing—pre-extrusion—stale—extrusion— Primary drying—secondary drying—calcination—module assembly to prepare the denitration catalyst sample of this embodiment.

Embodiment 2

[0030] Titanium dioxide 75 parts

[0031] Tungsten trioxide 9 parts

[0032] Vanadium pentoxide 2 parts

[0033] Kevlar 3 parts

[0034] 2 parts pulp cotton.

[0035] The preparation steps are the same as in Example 1.

Embodiment 3

[0037] Titanium dioxide 88 parts

[0038] Tungsten trioxide 14 parts

[0039] Vanadium pentoxide 2.5 parts

[0040] 4 parts aramid

[0041] 3.5 parts of pulp cotton.

[0042] The preparation steps are the same as in Example 1.

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Abstract

The invention discloses a denitration catalyst, which comprises the following components in part by weight: 70 to 90 parts of titanium dioxide, 8 to 16 parts of tungsten trioxide, 1.5 to 3 parts of vanadium pentoxide, 2 to 6 parts of aramid fiber and 2 to 6 parts of pulp cotton. The denitration catalyst has the advantages of high strength, difficult pulverization, long service life, ideal porosity, high catalytic efficiency, little dosage of the catalyst and low cost.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a denitration catalyst. Background technique [0002] Nitrogen oxides (NO X ) is a kind of air pollutant with great harm, which will cause certain damage to human health and the survival of animals and plants, such as the formation of acid rain, photochemical smog, etc. Today, with the increasing awareness and requirements of environmental protection, how to remove nitrogen oxides The emission of pollutants has become an increasingly urgent problem. At present, nitrogen oxides in my country are mainly produced from coal combustion and industrial smoke emissions. Although the catalysts traditionally used to remove nitrogen oxides can remove nitrogen oxides to a certain extent, however, There are still shortcomings such as low catalyst strength, easy pulverization, resulting in short service life, unsatisfactory porosity, low catalytic efficiency, large catalyst consumption, and h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/38B01J23/30B01D53/86B01D53/56
Inventor 吴磊
Owner RAGA TECH