Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A wide-temperature type honeycomb denitration catalyst and a preparing method thereof

A denitrification catalyst, honeycomb technology, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of nitrogen oxide emissions not up to standard, achieve the suppression of conversion rate, easy industrialization, Effects in simple steps

Inactive Publication Date: 2017-02-15
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wide temperature honeycomb denitration catalyst and its preparation method, which solves the problems in the above-mentioned prior art such as ammonium bisulfate and low activity leading to substandard nitrogen oxide emissions when the power plant is under low load. question

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

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0027] A wide temperature type honeycomb denitration catalyst according to the present invention, the composition weight percentage of this catalyst is as follows: Carrier TiO 2 80wt%; active ingredient A V 2 o 5 0wt%; active ingredient B MnO 2 1wt%; Auxiliary WO 3 10wt%; inhibitor CuCl3wt%; other components 6wt%.

[0028] Other components described in the present invention include ammonium metavanadate solution, manganese nitrate, glass fiber and binder.

specific Embodiment 2

[0030] A wide temperature type honeycomb denitration catalyst according to the present invention, the composition weight percentage of this catalyst is as follows: Carrier TiO 2 85wt%; active ingredient A V 2 o 5 1wt%; active ingredient B MnO 2 0wt%; Auxiliary WO 3 5wt%; inhibitor CuCl2wt%; other components 7wt%.

[0031] Other components described in the present invention include ammonium metavanadate solution, manganese nitrate, glass fiber and binder.

specific Embodiment 3

[0033] A wide temperature type honeycomb denitration catalyst according to the present invention, the composition weight percentage of this catalyst is as follows: Carrier TiO 2 90wt%; active ingredient A V 2 o 5 1wt%; active ingredient B MnO 2 1wt%; Auxiliary WO 3 2wt%; inhibitor CuCl1wt%; other components 5wt%.

[0034] Other components described in the present invention include ammonium metavanadate solution, manganese nitrate, glass fiber and binder.

[0035] The preparation method of the above-mentioned wide temperature type honeycomb denitration catalyst, the preparation method of the denitration catalyst is as follows:

[0036] (1) According to the dosage ratio, weigh TiO 2 、WO 3 , put it into the mixer, then add an appropriate amount of water and ammonia water to the mixer, and stir for 1 hour at a speed of 350r / min;

[0037] (2) When the water content of the mixture obtained in step (1) drops below 30%, add quantitative ammonium metavanadate solution, manga...

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 discloses a wide-temperature type honeycomb denitration catalyst. The catalyst includes, by weight, 80-90 wt% of a carrier that is TiO2, 0-1 wt% of an active component A that is V2O5, 0-1 wt% of an active component B that is MnO2, 1-10 wt% of an auxiliary that is WO3, 1-3 wt% of an inhibitor that is CuCl, and 5-10 wt% of other components. The invention also relates to a preparing method of the catalyst. The catalyst includes the manganese dioxide, wherein the manganese dioxide is a low-temperature catalytic active component and can improve low-temperature activity of the catalyst. The catalyst includes the CuCl, wherein the extranuclear space of Cu<+> is free of a 4S electronic shell, the CuCl belongs to a Lewis acid, SO2 also belongs to a Lewis acid, and the CuCl and the SO2 are mutually exclusive, and therefore a SO2 / SO3 conversion ratio can be inhibited. The preparing method of the catalyst is simple, and is prone to industrialization.

Description

technical field [0001] The invention relates to a denitration catalyst and a preparation method thereof, in particular to a wide temperature honeycomb denitration catalyst and a preparation method thereof. Background technique [0002] Nitrogen oxide NO X (mainly NO and NO 2 ) is one of the recognized air pollutants around the world. my country's "Twelfth Five-Year Plan" regards NOX emission reduction as a binding assessment index. How to scientifically and effectively control nitrogen oxides has become a relatively urgent task in the field of air pollution control in my country. [0003] As the country's requirements for nitrogen oxide emissions become more stringent, in 2015, the Ministry of Environmental Protection issued a notice on "Relevant Issues Concerning Excessive NOx Emissions of SCR Denitrification Systems in Thermal Power Plants Under Boiler Low-load Operation", which pointed out that thermal power plants are in any When running in compliance, the emission of...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/132
CPCB01J27/132
Inventor 江厚兵
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com