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Ceramic catalysis filter pipe

A technology of filter tubes and ceramics, which is applied in the field of ceramic catalytic filter tubes, can solve the problems of complex structure, large footprint, and low dust removal efficiency, and achieve the effects of good filtering effect, wide denitrification temperature range, and strong wear resistance

Active Publication Date: 2019-07-26
XIAN XIKUANG ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the desulfurization, denitrification and dust removal technologies in flue gas are in the research and industrial demonstration stage, and most of the existing denitrification and dust removal devices are complex in structure, occupy a large area and have low denitrification and dust removal efficiency

Method used

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  • Ceramic catalysis filter pipe
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  • Ceramic catalysis filter pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Mud mixing: Put attapulgite in 7mol / L HCl solution, stir at 80°C for 8 hours, wash and dry, and grind to 400 mesh. Dry mix 22 parts of modified attapulgite, 28 parts of anatase titanium dioxide, 2 parts of γ-alumina, 4 parts of silicon dioxide, and 1 part of tungsten trioxide, add 2 parts of cerium nitrate, metavanadic acid 2 parts of ammonium, 3 parts of manganese nitrate solution with a volume ratio of 50%, and deionized water to prepare a slurry. Add the prepared ammonium metavanadate solution and cerium nitrate solution to the above slurry and stir evenly. The evaporator evaporates under reduced pressure to remove water. Calcinate the completely dried material at a high temperature of 500°C to activate the activity, grind it to 400 mesh, and obtain a catalyst powder; mix 50 parts of catalyst powder, 2 parts of calcium oxide, 2 parts of magnesium oxide, and 0.2 parts of polycarboxylate superplasticizer , 3 parts of carboxymethyl cellulose, 2 parts of stearic acid...

Embodiment 2

[0030] 1) Mud mixing: Put attapulgite in 6mol / L HCl solution, stir at 80°C for 8 hours, wash and dry, and grind to 400 mesh. Dry mix 30 parts of modified attapulgite, 30 parts of anatase titanium dioxide, 3 parts of γ-alumina, 5 parts of silicon dioxide, and 1.5 parts of tungsten trioxide, add 3 parts of cerium nitrate, metavanadic acid 3 parts of ammonium, 6 parts of manganese nitrate solution with a volume ratio of 50%, and deionized water to prepare a slurry. Add the prepared ammonium metavanadate solution and cerium nitrate solution to the above slurry and stir evenly. The evaporator evaporates under reduced pressure to remove water. Calcinate the completely dried material at a high temperature of 500°C to activate the activity, grind it to 400 mesh, and obtain a catalyst powder; mix 80 parts of catalyst powder, 3 parts of calcium oxide, 3 parts of magnesium oxide, and 0.3 parts of polycarboxylate superplasticizer , 7 parts of carboxymethyl cellulose, 3 parts of stearic a...

Embodiment 3

[0036] 1) Mud mixing: Put attapulgite in 6mol / L HCl solution, stir at 80°C for 8 hours, wash and dry, and grind to 400 mesh. Dry mix 25 parts of modified attapulgite, 25 parts of anatase titanium dioxide, 2 parts of γ-alumina, 4 parts of silicon dioxide, and 1.5 parts of tungsten trioxide, add 2 parts of cerium nitrate, metavanadic acid 3 parts of ammonium, 5 parts of manganese nitrate solution with a volume ratio of 50%, and deionized water to prepare a slurry. Add the prepared ammonium metavanadate solution and cerium nitrate solution to the above slurry and stir evenly. The evaporator evaporates under reduced pressure to remove water. Calcinate the completely dried material at a high temperature of 500°C to activate the activity, grind it to 400 mesh, and obtain a catalyst powder; mix 65 parts of catalyst powder, 3 parts of calcium oxide, 2 parts of magnesium oxide, and 0.2 parts of polycarboxylate superplasticizer , 5 parts of carboxymethyl cellulose, 2 parts of stearic a...

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Abstract

The invention provides a ceramic catalysis filter pipe which is characterized by comprising a ceramic catalysis support and a catalyst ceramic film wrapping the outer surface of the ceramic catalysissupport, vent holes with the hole diameters of 5-30 micrometers are distributed in the surface of the ceramic film, conical holes with the hole diameters of 0.5-1 millimeters are horizontally and uniformly distributed in the ceramic catalysis filter pipe, and the hole diameter of one end, close to the a catalyst ceramic film, of each conical hole is smaller. The ceramic catalysis filter pipe is stable in denitration efficiency, wide in denitration temperature range, high in mechanical strength, strong in wear resistance, good in filtering effect and quite high in efficiency, and can simultaneously perform denitration and filtration.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a ceramic catalytic filter tube. Background technique [0002] In industrial production, waste gas will inevitably be produced, and if these waste gases are discharged into the air without treatment, they will definitely have an impact on the environment. Among them, gaseous waste gas is the most diverse and most harmful industrial waste gas. At present, gaseous waste gas mainly includes nitrogen-containing organic waste gas, sulfur-containing waste gas and hydrocarbon organic waste gas. [0003] (1) Nitrogen-containing waste gas. Such exhaust gases can damage the composition of the air, altering the gas composition. Especially the combustion of petroleum products, the amount of combustion of petroleum products in industrial production is huge, and the content of nitrogen compounds in petroleum products is large, so the exhaust gas will contain a large amount ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D46/54B01D46/00B01J23/34B01D53/56
CPCB01D53/8625B01D46/543B01J23/002B01J23/34B01J2523/00B01D46/71B01J2523/31B01J2523/3712B01J2523/41B01J2523/47B01J2523/55B01J2523/69B01J2523/72
Inventor 陈贵福李海波雷华李凌霄范潇苏丽娜
Owner XIAN XIKUANG ENVIRONMENTAL PROTECTION
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