Polymer solid powder denitration agent for flue gas denitration and preparation method thereof

A solid powder and polymer technology, applied in the field of flue gas denitrification, can solve the problems of corrosion of incinerators, secondary pollution, easy moisture absorption of denitrification agents, etc., and achieve the effects of improving utilization rate, improving contact and reducing secondary pollution.

Inactive Publication Date: 2020-09-22
SICHUAN JIUDINGZHIYUAN INTPROP OPERATIONS CO LTD
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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 polymer solid powder denitrification agent for flue gas denitrification in view of the problems that the existing polymer solid powder denitrification agent is easy to absorb moisture, easily cause corrosion to the incinerator, and easily cause secondary pollution. and its preparation method, the polymer solid powder denitration agent of the present invention has simple components, easy-to-obtain raw materials, simple preparation method, high denitration efficiency, high cost performance, and good fluidity, which is convenient for the transportation of the denitration agent in the denitration process, and can further improve The denitrification efficiency of the denitrification agent reduces the secondary pollution and overcomes the shortcomings of the existing technology

Method used

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  • Polymer solid powder denitration agent for flue gas denitration and preparation method thereof
  • Polymer solid powder denitration agent for flue gas denitration and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method for a polymer solid powder denitration agent for flue gas denitration, comprising the following steps:

[0028] S1. Weigh raw materials, weigh 10g sulfonamide, 34g cyanuric acid, 12g ammonium bicarbonate and 25g calcium carbonate powder, mix them through a sieve with 50-60 meshes, and reach the specified size powder;

[0029] S2. For the powder of specified size obtained in S1, add 6g of additives under stirring conditions to obtain a homogeneous powder that is uniformly mixed;

[0030] S3. Add 12 g of rare earth ore powder to the homogeneous powder obtained in S2 under stirring conditions, and stir evenly to obtain a polymer solid powder denitrification agent.

Embodiment 2

[0032] A preparation method for a polymer solid powder denitration agent for flue gas denitration, comprising the following steps:

[0033] S1. Weigh raw materials, weigh 12g thiourea, 25g melamine, 10g ammonium bicarbonate and 25.5g calcite, mix them through a sieve with 50-60 meshes, and reach the specified size powder;

[0034] S2. Add 3.7 g of additives to the powder of specified size obtained in S1 under stirring conditions to obtain a homogeneous powder mixed uniformly;

[0035] S3. Add 11.3 g of rare earth ore powder to the homogeneous powder obtained in S2 under stirring conditions, and stir evenly to obtain a polymer solid powder denitrification agent.

Embodiment 3

[0037] A preparation method for a polymer solid powder denitration agent for flue gas denitration, comprising the following steps:

[0038] S1, take raw materials, take by weighing 15g ammonium sulfonate, 28g cyanuric acid, 12g urea and 24.3g dolomite, after mixing it through a 50-60 mesh screen, reach the powder of specified size;

[0039] S2. Add 7.4 g of additives to the powder of specified size obtained in S1 under stirring conditions to obtain a homogeneous powder that is uniformly mixed;

[0040]S3. Add 13.9 g of rare earth ore powder to the homogeneous powder obtained in S2 under the condition of stirring, and after stirring evenly, a polymer solid powder denitrification agent can be obtained.

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Abstract

The invention discloses a polymer solid powder denitration agent for flue gas denitration and a preparation method thereof. The polymer solid powder denitration agent comprises the following raw materials in percentage by weight: 10-70% of an organic amino active compound, 10-40% of an inorganic active amino compound, 5-40% of inorganic mineral substance powder, 5-30% of active mineral substance powder and 1-10% of an additive. The polymer solid powder denitration agent has the advantages of simple components, easily available raw materials, simple preparation method, high denitration efficiency, high cost performance and good fluidity, is convenient for conveying the denitration agent in a denitration process, can improve the denitration efficiency of the denitration agent and reduce secondary pollution, and overcomes the defects in the prior art.

Description

technical field [0001] The invention relates to the technical field of flue gas denitrification, in particular to a polymer solid powder denitrification agent for flue gas denitrification and a preparation method thereof. Background technique [0002] Flue gas denitrification is the process of removing nitrogen oxides from combustion flue gas. The importance of preventing environmental pollution has been sharply raised as a worldwide problem. [0003] Denitrification methods include denitrification before combustion, such as coal preparation; denitrification during combustion, such as coal burning for sulfur fixation and denitrification, calcium spraying in the furnace, circulating fluidized bed combustion, etc.; denitrification after combustion, that is, flue gas desulfurization and denitrification. At present, the most effective means to control NOx emissions in foreign countries is flue gas desulfurization and denitrification technology, but its infrastructure investment ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/56B01D53/81B01D53/86
CPCB01D53/56B01D53/81B01D53/8625B01D2258/0283
Inventor 丁伟
Owner SICHUAN JIUDINGZHIYUAN INTPROP OPERATIONS CO LTD
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