Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Denitration catalyst terminal hardening liquid as well as preparation method and application thereof

A technology for denitrification catalyst and hardening solution, which is applied in the direction of catalyst activation/preparation, catalyst protection, chemical instruments and methods, etc. It can solve the problems of reduced overall catalyst strength, achieve good preparation and application performance, reduce production costs, and wear resistance Effect of improving corrosion resistance

Active Publication Date: 2015-11-18
HAO HUA CHENGDU TECH
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the alkali metal Na and sulfate contained in it will poison the catalyst, and sodium oxide has high mobility and activity in the catalyst, which will reduce the overall strength of the catalyst.

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
  • Denitration catalyst terminal hardening liquid as well as preparation method and application thereof
  • Denitration catalyst terminal hardening liquid as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare hardening solution according to the following formula and method:

[0033] (1) Dissolve 45g of phosphoric acid in 45g of deionized water and heat up to 60°C;

[0034] (2) Slowly add 10g of aluminum hydroxide in batches to (1) under stirring;

[0035] (3) heating to 120° C. for 2 hours to obtain a transparent solution;

[0036] (4) Add 0.5g of BYK-302 to (3) and stir evenly;

[0037] (5) Slowly add 4.5g of copper oxide powder, calcined at 950°C, the particle size is about 5-20μm, stir and disperse evenly to obtain the hardening solution.

[0038] The catalyst is impregnated according to the following process:

[0039] (1) After immersing 20 mm of the inlet end (or both ends of the air inlet and outlet) of the roasted and polished catalyst into the aforementioned hardening solution in stirring for 10 seconds;

[0040] (2) Blow off excess liquid with compressed air, and air-dry at room temperature for 5-8 hours;

[0041] (3) Catalyst treatment is completed by ...

Embodiment 2

[0044] Prepare hardening solution as follows:

[0045] (1) Dissolve 30g of phosphoric acid in 60g of deionized water and heat up to 60°C;

[0046] (2) Slowly add 10g of aluminum hydroxide in batches to (1) under stirring;

[0047] (3) heating to 120° C. for 2 hours to obtain a transparent solution;

[0048] (4) Add 0.5g of BYK-302 to (3) and stir evenly;

[0049] (5) Slowly add 4.5 g of copper oxide powder.

[0050] Dipping treatment process is the same as embodiment 1;

Embodiment 3

[0052] Prepare hardening solution as follows:

[0053] (1) Dissolve 60g of phosphoric acid in 30g of deionized water and heat up to 60°C;

[0054] (2) Slowly add 10g of aluminum hydroxide in batches to (1) under stirring;

[0055](3) heating to 120° C. for 2 hours to obtain a transparent solution;

[0056] (4) Add 0.5g of BYK-302 to (3) and stir evenly;

[0057] (5) Slowly add 4.5 g of copper oxide powder.

[0058] Dipping treatment process is the same as embodiment 1;

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of catalysts and particularly relates to denitration catalyst terminal hardening liquid as well as a preparation method and application thereof. The denitration catalyst terminal hardening liquid is applied to a coal-fired boiler flue gas denitration catalyst. The hardening liquid comprises the following raw materials in parts by weight: 5-25 parts of aluminum hydroxide, 30-60 parts of phosphoric acid, 30-60 parts of de-ionized water, 1-10 parts of metal oxide powder and 0.1-1 part of a suspension dispersant. With the adoption of the denitration catalyst terminal hardening liquid, the radial compressive strength of a catalyst terminal part can be improved by 150% or more; and meanwhile, more than or equal to 90% of catalytic activity is kept.

Description

technical field [0001] The invention belongs to the technical field of catalysts, and relates to the application of flue gas denitrification honeycomb catalysts to the field of flue gas with high space velocity and high dust content, in particular to a denitrification catalyst end hardening liquid and its preparation method and application. Background technique [0002] In recent years, environmental problems have become more and more prominent. As more and more people are aware of their harm to the environment and human beings, the country and the public are also paying more attention to them. Among them, NOx produced by chemical fuel combustion is a pollutant that has received great attention. It has been proven that it poses a huge threat to human health and the ecological environment. It is the main cause of acid rain and induces photochemical smog. my country is a country with abundant coal resources, and the NOx produced by coal combustion is the main source of NOx em...

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): B01J33/00B01J37/02
Inventor 胡洧冰李敬王磊张向辉王蕾郑珩
Owner HAO HUA CHENGDU TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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