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Honeycomb type denitration catalyst and preparation method thereof

A denitrification catalyst and honeycomb technology, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of cumbersome preparation process of powder catalysts, achieve short preparation cycle, wide range of sources, reduce wear effect

Inactive Publication Date: 2018-03-23
SHIHEZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the preparation process of powder catalyst is particularly cumbersome.

Method used

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  • Honeycomb type denitration catalyst and preparation method thereof
  • Honeycomb type denitration catalyst and preparation method thereof
  • Honeycomb type denitration catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Raw material preparation:

[0065] Active components: 80g of manganese acetate tetrahydrate and 20g of iron nitrate nonahydrate;

[0066] Carrier: cordierite 400g;

[0067] Binder: bentonite 40g;

[0068] Plasticizer: carboxymethyl cellulose 20g;

[0069] Toughening agent: glass fiber 40g;

[0070] Lubricant: glycerin 20g.

[0071] The specific operation steps are as follows:

[0072] (1) 400g cordierite, 40g bentonite, 20g carboxymethyl cellulose and 40g glass fibers are put into the mixer, and dry mixed for 30min to obtain the dry mixed material;

[0073] (2) 80g manganese acetate tetrahydrate and 20g ferric nitrate nonahydrate are heated at 80°C to become a solution to obtain the active component solution;

[0074] The active component solution and 20 g of glycerin were added to the dry mixed material for wet mixing, and the wet mixed material was mixed for 0.5 hours to obtain the wet mixed material, which was a mud mass with certain plasticity;

[0075] (3) P...

Embodiment 2

[0081] Raw material preparation:

[0082] Active ingredients: 4g manganese acetate tetrahydrate and 20g ferric nitrate nonahydrate;

[0083] Carrier: Attapulgite 400g;

[0084] Binder: silica sol 20g;

[0085] Plasticizer: PMMA microspheres 50g;

[0086] Toughening agent: 20g of quartz wool;

[0087] Lubricant: ethanolamine 30g;

[0088] The specific operation steps are as follows:

[0089] (1) 400g attapulgite, 20g silica sol, 50g PMMA microspheres and 20g quartz wool are put into a mixer, and dry mixed for 5min to obtain a dry mixed material;

[0090] (2) 4g manganese acetate tetrahydrate and 20g ferric nitrate nonahydrate are heated at 70°C to become a solution to obtain the active component solution;

[0091] The active component solution and 30 g of ethanolamine were added to the dry-mixed material for wet mixing, and the wet-mixed material was wet-mixed for 1 hour to obtain a wet-mixed material, which was a mud mass with certain plasticity;

[0092] (3) Put the we...

Embodiment 3

[0098] Raw material preparation:

[0099] Active ingredients: 70g of manganese acetate tetrahydrate and 4g of ferric nitrate nonahydrate;

[0100] Carrier: TiO 2 400g;

[0101] Binder: clay 100g;

[0102] Plasticizer: carboxymethyl cellulose 100g;

[0103] Toughening agent: glass fiber 20g;

[0104] Lubricant: glycerin 40g;

[0105] The specific operation steps are as follows:

[0106] (1) 400g TiO 2 , 100g clay, 100g carboxymethyl cellulose and 20g glass fiber are put into the blender, dry mix 20min, get dry blend material;

[0107] (2) 70g manganese acetate tetrahydrate and 4g ferric nitrate nonahydrate are heated at 75°C to become a solution to obtain the active component solution;

[0108] Active component solution and 40g glycerin are joined in dry mix material and carry out wet mix, wet mix 2h, get wet mix material, and wet mix material is the mud mass with certain plasticity;

[0109](3) Put the wet mixed material into the vacuum mud mixer for full mixing, mix...

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Abstract

The invention belongs to the field of catalysts and in particular relates to a honeycomb type denitration catalyst and a preparation method thereof. The honeycomb type denitration catalyst comprises acarrier, an active component, an adhesive, a plasticizer, a toughening agent and a lubricant, wherein the carrier is one of cordierite, attapulgite, TiO2 and expanded vermiculite; the active component is manganese acetate tetrahydrate and ferric sulfate nonahydrate; the adhesive is one of bentonite, silica sol, clay and polyvinyl alcohol; the toughening agent is a glass fiber or quartz cotton; the plasticizer is carboxymethylcellulose or PMMA (Polymethyl Methacrylate) microspheres; the lubricant is glycerinum or ethanolamine. The invention further discloses a preparation method of the catalyst. The honeycomb type denitration catalyst and the preparation method thereof provided by the invention are low in raw material price, short in preparation cycle, simple in process procedure and low in catalyst molding preparation cost, and the obtained honeycomb type denitration catalyst is good in denitration property and good in stability.

Description

technical field [0001] The invention belongs to the field of catalysts, in particular to a honeycomb denitration catalyst and a preparation method thereof. Background technique [0002] In today's increasingly serious environmental pollution, more and more people pay attention to environmental problems. In recent years NO x The emissions of nitrogen oxides are increasing year by year, and the total emissions of nitrogen oxides have surpassed sulfur dioxide to become the largest acid pollutant. After NO is inhaled into the human body, it can combine with hemoglobin in the blood, reducing the ability of the blood to transport oxygen, thus causing hypoxia. Nitrogen oxides, mainly nitrogen monoxide and nitrogen dioxide, are an important cause of photochemical smog and acid rain. Since nitrogen oxide pollution is becoming more and more serious, and coal-fired power plants are the largest pollution source of nitrogen oxides, the control of NOx in coal-fired power plants X emis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J35/04B01J37/08B01D53/86B01D53/56
CPCB01D53/8628B01J23/8892B01J37/0018B01D2258/0283B01J35/56
Inventor 于锋张轲但建明代斌
Owner SHIHEZI UNIVERSITY
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