High-temperature SCR catalyst

An SCR catalyst and catalyst technology, applied in the field of SCR catalyst preparation, can solve the problems of complex preparation process, low catalyst denitration rate, etc., and achieve the effects of simple preparation method, good environmental protection performance and strong denitration ability

Inactive Publication Date: 2020-04-24
十堰创胜工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing SCR catalyst preparation process is complicated, and the denitrification rate of the obtained catalyst is low. Therefore, it is necessary to improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The catalyst components include 30 parts by weight of pottery clay, 10 parts of nano-titanium dioxide, 5 parts of polypropylene fiber, 5 parts of titanium-tungsten silicon powder, 3 parts of nano-alumina, 4 parts of lanthanum oxide, 7 parts of copper oxide, and 8 parts of diatomaceous earth 8 parts, 8 parts of triethanolamine, 2 parts of citric acid, 4 parts of expanded perlite.

[0019] The preparation method of the present embodiment comprises the following steps:

[0020] A. After mixing pottery clay, diatomaceous earth and expanded perlite, add them to a pulverizer to pulverize to obtain a mixed powder;

[0021] B. Add nano-titanium dioxide, titanium-tungsten-silicon powder, nano-alumina, lanthanum oxide, and copper oxide to the mixed powder, mix thoroughly and stir at room temperature to obtain mixture A;

[0022] C, add polypropylene fiber, triethanolamine, citric acid in mixture A, add in mixing machine after fully mixing, obtain mixture B;

[0023] D. Add mixt...

Embodiment 2

[0027] The catalyst components include 40 parts by weight of pottery clay, 20 parts of nano titanium dioxide, 15 parts of polypropylene fiber, 15 parts of titanium tungsten silicon powder, 9 parts of nano alumina, 10 parts of lanthanum oxide, 14 parts of copper oxide, and 20 parts of diatomaceous earth. Parts, 16 parts of triethanolamine, 6 parts of citric acid, 12 parts of expanded perlite.

[0028] The preparation method of the present embodiment comprises the following steps:

[0029] A. After mixing pottery clay, diatomaceous earth and expanded perlite, add them to a pulverizer to pulverize to obtain a mixed powder;

[0030] B. Add nano-titanium dioxide, titanium-tungsten-silicon powder, nano-alumina, lanthanum oxide, and copper oxide to the mixed powder, mix thoroughly and stir at room temperature to obtain mixture A;

[0031] C, add polypropylene fiber, triethanolamine, citric acid in mixture A, add in mixing machine after fully mixing, obtain mixture B;

[0032] D. Ad...

Embodiment 3

[0036] The catalyst components include 32 parts of pottery clay, 12 parts of nano titanium dioxide, 6 parts of polypropylene fiber, 7 parts of titanium tungsten silicon powder, 4 parts of nano alumina, 5 parts of lanthanum oxide, 8 parts of copper oxide, and 9 parts of diatomaceous earth in parts by weight. Parts, 9 parts of triethanolamine, 3 parts of citric acid, 6 parts of expanded perlite.

[0037] The preparation method of the present embodiment comprises the following steps:

[0038] A. After mixing pottery clay, diatomaceous earth and expanded perlite, add them to a pulverizer to pulverize to obtain a mixed powder;

[0039] B. Add nano-titanium dioxide, titanium-tungsten-silicon powder, nano-alumina, lanthanum oxide, and copper oxide to the mixed powder, mix thoroughly and stir at room temperature to obtain mixture A;

[0040] C, add polypropylene fiber, triethanolamine, citric acid in mixture A, add in mixing machine after fully mixing, obtain mixture B;

[0041] D. ...

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PUM

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Abstract

The invention discloses a high-temperature SCR catalyst. The catalyst is prepared from the following components in parts by weight: 30 to 40 parts of argil, 10 to 20 parts of nano titanium dioxide, 5to 15 parts of polypropylene fiber, 5 to 15 parts of titanium tungsten silicon powder, 3 to 9 parts of nano aluminum oxide, 4 to 10 parts of lanthanum oxide, 7 to 14 parts of copper oxide, 8 to 20 parts of diatomite, 8 to 16 parts of triethanolamine, 2 to 6 parts of citric acid and 4 to 12 parts of expanded perlite. The preparation method disclosed by the invention is simple, and the prepared SCRcatalyst has very strong denitration capability, good high-temperature resistance and good environmental protection performance, and does not cause environmental pollution.

Description

technical field [0001] The invention relates to the technical field of SCR catalyst preparation, in particular to a high-temperature SCR catalyst. Background technique [0002] With the development of modern industrial production and the great improvement of people's living standards, air pollution has become a problem of widespread concern. The importance of environmental protection has been sharply raised as a worldwide issue. Like sulfur dioxide, nitrogen oxides NOx are also environmental polluting gases, which will trigger photochemical reactions under sunlight to form photochemical smog, causing serious air pollution. The air pollution problem of nitrogen oxides NOx has gradually been paid attention to since the 1970s. After research, it has been found that NOx will not only cause photochemical smog, but also endanger human health, cause high levels of nitric acid rain, reduce the ozone layer and other problems. The harm far exceeds people's original imagination. [...

Claims

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Application Information

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IPC IPC(8): B01J23/888B01J35/00B01D53/86B01D53/56
CPCB01J23/888B01D53/8628B01J35/30
Inventor 罗荣海
Owner 十堰创胜工贸有限公司
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