Unlock instant, AI-driven research and patent intelligence for your innovation.

Catalytic denitration method

A catalytic denitrification and reaction technology, applied in the field of catalytic denitrification, can solve the problems of catalyst fouling, clogging and immaturity, and achieve good treatment effect and high practical use value

Inactive Publication Date: 2018-12-25
郑州康宁特环境工程科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the flue gas characteristics of the two are quite different, especially the dust content of the cement industry is much higher than that of the thermal power industry, which may easily cause the catalyst to accumulate dust and block
[0003] At present, the denitrification technology in the cement industry is still immature, and it is urgent to develop effective catalytic denitrification technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Catalytic denitration method
  • Catalytic denitration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a catalytic denitrification method. Catalytic denitration is achieved by adding a denitrification catalyst to the reaction kettle, and the denitrification catalyst reacts with nitrogen-containing waste gas to generate environmentally harmless gas that meets emission standards.

[0035] The reaction principle of denitrification catalysis is as follows:

[0036] 4NO+4NH 3 +O 2 =4N 2 +6H 2 O;

[0037] 2NO 2 +4NH 3 +O 2 =3N 2 +6H 2 O;

[0038] Through the catalysis of the catalyst, the temperature of the reaction is reduced, and the nitrogen monoxide or nitrogen dioxide reacts with the ammonia gas and delays to generate harmless nitrogen and water, which meets the standard for treating waste gas.

[0039] Denitration catalyst, mainly composed of titanium dioxide, montmorillonite, ammonium paratungstate, vanadium pentoxide, stearic acid, ammonium metavanadate, polyethylene oxide, monoethanolamine, carboxymethyl cellulose, lactic acid, wood ...

Embodiment 2

[0048] This embodiment provides a catalytic denitrification method. Catalytic denitration is achieved by adding a denitrification catalyst to the reaction kettle, and the denitrification catalyst reacts with nitrogen-containing waste gas to generate environmentally harmless gas that meets emission standards.

[0049] The reaction principle of denitrification catalysis is as follows:

[0050] 4NO+4NH 3 +O 2 =4N 2 +6H 2 O;

[0051] 2NO 2 +4NH 3 +O 2 =3N 2 +6H 2 O;

[0052] Through the catalysis of the catalyst, the temperature of the reaction is reduced, and the nitrogen monoxide or nitrogen dioxide reacts with the ammonia gas and delays to generate harmless nitrogen and water, which meets the standard for treating waste gas.

[0053] Denitration catalyst, mainly composed of titanium dioxide, montmorillonite, ammonium paratungstate, vanadium pentoxide, stearic acid, ammonium metavanadate, polyethylene oxide, monoethanolamine, carboxymethyl cellulose, lactic acid, wood ...

Embodiment 3

[0062] This embodiment provides a catalytic denitrification method. Catalytic denitration is achieved by adding a denitrification catalyst to the reaction kettle, and the denitrification catalyst reacts with nitrogen-containing waste gas to generate environmentally harmless gas that meets emission standards.

[0063] The reaction principle of denitrification catalysis is as follows:

[0064] 4NO+4NH 3 +O 2 =4N 2 +6H 2 O;

[0065] 2NO 2 +4NH 3 +O 2 =3N 2 +6H 2 O;

[0066] Through the catalysis of the catalyst, the temperature of the reaction is reduced, and the nitrogen monoxide or nitrogen dioxide reacts with the ammonia gas and delays to generate harmless nitrogen and water, which meets the standard for treating waste gas.

[0067] Denitration catalyst, mainly composed of titanium dioxide, montmorillonite, ammonium paratungstate, vanadium pentoxide, stearic acid, ammonium metavanadate, polyethylene oxide, monoethanolamine, carboxymethyl cellulose, lactic acid, wood ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a catalytic denitration method and belongs to the technical field of environment protection science and technology and environment protection. The catalytic denitration method includes that firstly, nitrogen-containing waste gas is subjected to dedusting treatment, so that particles in the waste gas can be avoided poisoning a catalyst and blocking pores of the catalyst; secondly, the waste gas is fed into a reaction kettle to be in catalytic reaction with ammonia and ozone through the catalyst to realize conversion of nitrogen-containing gas; thirdly, escaping ammonia isabsorbed through a tail gas tank, emission is performed after reaching emission standards. The catalytic denitration method is good in treatment effect and has high practical using value.

Description

technical field [0001] The invention relates to the field of environmental protection technology and environmental protection technology, in particular to a method for catalytic denitrification. Background technique [0002] With the continuous improvement of national air pollutant emission standards and the deepening awareness of the hazards of smog, NOx, as a precursor of smog and acid rain, may have stricter emission standards. At present, the denitrification technologies commonly used in the cement industry are low-nitrogen combustion and SNCR. In order to meet stricter emission standards, it is necessary to add SCR denitrification on the basis of this denitrification to realize SNCR-SCR combined denitrification. Domestic cement industry has little research on SCR denitrification technology, but SCR technology is widely used in thermal power industry. Although the flue gas characteristics of the two are quite different, especially the dust content of the cement industry...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01D53/86B01D53/56B01D53/18B01D53/14B03C3/00B01J31/38
CPCB01D53/14B01D53/18B01D53/8628B01D2251/104B01D2251/2062B01D2257/406B01D2258/0233B01J31/38B03C3/00
Inventor 张福顺陈江涛李奎中
Owner 郑州康宁特环境工程科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com