Honeycomb type SCR denitration catalyst and preparation method thereof

A denitration catalyst and honeycomb technology, applied in the field of denitration catalysts, can solve the problems of good chemical and thermal stability, high catalyst cost, and high anti-poisoning performance, and achieve good chemical and thermal stability, high solution cost, and anti-poisoning performance. high performance effects

Active Publication Date: 2015-10-14
山东海润环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method of using diatomite and molecular sieve instead of a large amount of titanium dioxide to prepare a honeycomb denitration catalyst, which is used to solve the problem of high cost of existing catalysts, and has good chemical and thermal stability and high activity. Low cost, high anti-poisoning performance, long service life, etc.

Method used

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  • Honeycomb type SCR denitration catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A honeycomb SCR denitration catalyst, prepared from the following components in parts by weight:

[0053] 7 parts of diatomaceous earth;

[0054] 11 parts of titanium dioxide;

[0055] 18 parts of molecular sieves;

[0056] 8 parts of praseodymium oxide;

[0057] 9 parts of yttrium oxide;

[0058] Iron oxide 10 parts

[0059] 20 parts of polyferrocene;

[0060] 4 parts of talcum powder;

[0061] 6 parts of simethicone oil;

[0062] 7 parts of phenolic resin;

[0063] Dolomite 8 parts;

[0064] 4 parts of polytetrafluoroethylene powder;

[0065] 3 parts polystyrene glycol ester fiber;

[0066] 1 part of sodium cetylbenzenesulfonate;

[0067] Sodium Lauryl Sulfate 2 parts;

[0068] 2 parts of polyoxyethylene ether;

[0069] 8 parts of deionized water.

[0070] The preparation technology of cellular SCR denitration catalyst of the present invention is as follows:

[0071] (1) Take 7 parts of diatomite, 11 parts of titanium dioxide, and 18 parts of molecular si...

Embodiment 2

[0082] A honeycomb SCR denitration catalyst, prepared from the following components in parts by weight:

[0083] 8 parts of diatomaceous earth;

[0084] 15 parts of titanium dioxide;

[0085] 19 parts of molecular sieves;

[0086] 11 parts of praseodymium oxide;

[0087] 10 parts of yttrium oxide;

[0088] Iron oxide 12 parts

[0089] 22 parts of polyferrocene;

[0090] 5 parts of talcum powder;

[0091] 7 parts of simethicone;

[0092] 8 parts of phenolic resin;

[0093] Dolomite 9 parts;

[0094] 6 parts of polytetrafluoroethylene powder;

[0095] 4 parts polystyrene glycol ester fiber;

[0096] 2 parts of sodium cetylbenzenesulfonate;

[0097] 3 parts sodium lauryl sulfate;

[0098] 3 parts of polyoxyethylene ether;

[0099] 9 parts of deionized water.

[0100] The preparation technology of cellular SCR denitration catalyst of the present invention is as follows:

[0101] (1) Take 8 parts of diatomite, 15 parts of titanium dioxide, and 19 parts of molecular s...

Embodiment 3

[0112] A honeycomb SCR denitration catalyst, prepared from the following components in parts by weight:

[0113] 13 parts of diatomaceous earth;

[0114] 20 parts of titanium dioxide;

[0115] 25 parts of molecular sieves;

[0116] 12 parts of praseodymium oxide;

[0117] 13 parts of yttrium oxide;

[0118] Iron oxide 15 parts

[0119] 25 parts of polyferrocene;

[0120] 6 parts of talcum powder;

[0121] 9 parts of simethicone;

[0122] 8 parts of phenolic resin;

[0123] Dolomite 12 parts;

[0124] 7 parts of polytetrafluoroethylene powder;

[0125] 5 parts of polystyrene glycol ester fiber;

[0126] 3 parts of sodium cetylbenzenesulfonate;

[0127] Sodium lauryl sulfate 5 parts;

[0128] 4 parts of polyoxyethylene ether;

[0129] 10 parts of deionized water.

[0130] The preparation technology of cellular SCR denitration catalyst of the present invention is as follows:

[0131] (1) Take 13 parts of diatomaceous earth, 20 parts of titanium dioxide, and 25 parts ...

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Abstract

The present invention relates to a honeycomb type SCR denitration catalyst and a preparation method thereof, and belongs to the field of denitration catalysts. According to the present invention, diatomite and a molecular sieve are used to replace a large number of titanium dioxide as the carrier, such that the high cost problem of the existing catalyst is easily solved, and advantages of good chemical stability, good thermal stability, high activity, low cost, high anti-poisoning property, long service life and the like are provided; the rare earth oxide is added, such that the heat resistance of the catalyst can be improved, and the double effect of lattice structure stabilizing and volume shrinkage preventing can be provided; polyferrocene is the polymer reducing agent so as to easily improve the denitration rate of the denitration catalyst, wherein the denitration efficiency achieves more than or equal to 91%; and the honeycomb type SCR denitration catalyst preparation method has characteristics of simpleness, easy performing, and high production efficiency.

Description

technical field [0001] The invention relates to a honeycomb SCR denitration catalyst and a preparation method thereof, belonging to the field of denitration catalysts. Background technique [0002] Nitrogen oxides (NO x ) is one of the most important air pollutants. It is the main cause of acid rain, photochemical smog and the hole in the ozone layer, and it has caused great harm to the ecological environment, industrial and agricultural production, and human health. Country to NO x More and more attention has been paid to the control of emissions, and strict emission standards have been formulated. Since January 1, 2012, the nitrogen oxide emissions of all newly-built thermal power units shall not exceed 100mg / m 3 ; Since January 1, 2014, the nitrogen oxide emissions of all thermal power units put into operation in key areas shall not exceed 100mg / m 3 , units put into operation before 2003 in non-key areas shall not exceed 200 mg / m 3 ; [0003] Flue gas denitrification...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01D53/86B01D53/56
Inventor 赵艳军杨公平任谦牟海波张帅苗澍甘宁
Owner 山东海润环保科技有限公司
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