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

Anti-aging volatile organic compound purification catalyst and preparation method for same

A volatile organic compound and anti-aging technology, which is applied in the field of volatile organic compound purification catalyst and its preparation, can solve the problems of high cost, growth of precious metal particles, and decreased activity, and achieve good stability and meet the requirements of emission regulations.

Active Publication Date: 2019-01-18
WUXI WEIFU ENVIRONMENT PROTECTION CATALYST
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the catalytic oxidation treatment technology also has problems, that is, the catalyst will grow precious metal particles under the condition of 300-500 °C for a long time, and the activity will drop rapidly, resulting in deactivation. Therefore, the catalyst needs to be replaced frequently, resulting in high cost

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
  • Anti-aging volatile organic compound purification catalyst and preparation method for same
  • Anti-aging volatile organic compound purification catalyst and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a catalyst for aging-resistant volatile organic compound purification comprises the following steps:

[0030] a. Prepare Pt(NO 3 ) 2 and Pd(NO 3 ) 2 , Pt(NO 3 ) 2 and Pd(NO 3 ) 2 Precious metal solution mixed, according to Pt(NO 3 ) 2 and Pd(NO 3 ) 2Add PEG200 solution dropwise to 10 times of the sum of the weights, stir and mix evenly to form a precious metal mixed solution, and prepare 190g of Al 2 o 3 powder, using the method of incipient wetness impregnation, the noble metal mixed oxide solution is uniformly impregnated into the Al 2 o 3 On the powder, Al loaded with noble metal oxides is obtained 2 o 3 slurry;

[0031] b. Al loaded with noble metal oxides 2 o 3 The slurry is dried, and the drying temperature is controlled at 100 ° C. After drying, it is roasted in a muffle furnace. The roasting temperature is controlled at 500 ° C, and the roasting time is controlled at 1 hour, and the Al alloy loaded with noble metal Pt an...

Embodiment 2

[0046] A preparation method of a catalyst for aging-resistant volatile organic compound purification comprises the following steps:

[0047] a. Prepare Pt(NO 3 ) 2 and Pd(NO 3 ) 2 , Pt(NO 3 ) 2 and Pd(NO 3 ) 2 Precious metal solution mixed, according to Pt(NO 3 ) 2 and Pd(NO 3 ) 2 Add PEG200 solution dropwise to 10 times of the sum of the weights, stir and mix evenly to form a precious metal mixed solution, and prepare 190g of Al 2 o 3 powder, using the method of incipient wetness impregnation, the noble metal mixed oxide solution is uniformly impregnated into the Al 2 o 3 On the powder, Al loaded with noble metal oxides is obtained 2 o 3 slurry;

[0048] b. Al loaded with noble metal oxides 2 o 3 Dry the slurry to obtain the crude catalyst. The drying temperature is controlled at 100°C. The crude catalyst after drying is roasted in a muffle furnace. The roasting temperature is controlled at 500°C, and the roasting time is controlled at 3 hours. Al of Pd 2 ...

Embodiment 3

[0063] A preparation method of a catalyst for aging-resistant volatile organic compound purification comprises the following steps:

[0064] a. First measure the volume of the cordierite honeycomb ceramic carrier, and prepare Pt(NO 3 ) 2 and Pd(NO 3 ) 2 , Pt(NO 3 ) 2 and Pd(NO 3 ) 2 Mixed to form noble metal mixed oxides, according to Pt(NO 3 ) 2 and Pd(NO 3 ) 2 Add PEG200 solution dropwise to 10 times of the sum of the weights, stir and mix evenly to form a noble metal mixed oxide solution, and prepare 190g of Al 2 o 3 powder, using the method of incipient wetness impregnation, the noble metal mixed oxide solution is uniformly impregnated into the Al 2 o 3 On the powder, Al loaded with noble metal oxides is obtained 2 o 3 slurry;

[0065] b. Al loaded with noble metal oxides 2 o 3 The slurry is dried to obtain the crude catalyst. The drying temperature is controlled at 100°C. The dried catalyst is roasted in a muffle furnace. The roasting temperature is cont...

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 an anti-aging volatile organic compound purification catalyst. The surface of a carrier is coated with an oxidative catalyst coating. The coating contains Al2O3, CeO2, MnO2, anoble metal Pt and a noble metal Pd. Corresponding to every liter of a cordierite honeycomb ceramic carrier , the using amounts of Al2O3, CeO2 and MnO2 are 80 to 200g, 5 to 30g and 10 to 30g respectively. Corresponding to every cubic foot of the cordierite honeycomb ceramic carrier, the using amounts of the noble metal Pt and the noble metal Pd are 6 to 50g and 10 to 20g respectively. A preparation method for the anti-aging volatile organic compound purification catalyst comprises the following steps: impregnating Al2O3 powder in a noble metal oxide solution, drying, calcining, crushing and grinding Al2O3 slurry loaded with the noble metals Pt and Pd, preparing a precursor of CeO2 and a precursor solution of MnO2, adding dropwise the precursor solution into the ground slurry, and executingcoating step and a drying and calcination step. The catalyst is high in stability; emission pollutants can be effectively catalyzed for oxidation and converted into pollution-free CO2 and H2O, thereby meeting the requirements of emission regulations.

Description

technical field [0001] The invention discloses an aging-resistant catalyst for purifying volatile organic compounds. The invention also discloses an aging-resistant catalyst for purifying volatile organic compounds and a preparation method thereof. Background technique [0002] VOCs refer to various volatile organic compounds with a boiling point of 50-260°C under normal pressure, and are usually emitted by coatings, petrochemical, and fine chemical companies. It has caused serious harm to the environment and violated human health, so it has attracted the attention of various countries, and promulgated corresponding laws and regulations to formulate VOCs emission standards. [0003] There are many ways to deal with volatile organic compounds, including direct combustion, catalytic oxidation, adsorption, biological purification, and photocatalytic oxidation. The treatment temperature of the direct combustion method is high, reaching 900°C, which increases the difficulty and ...

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): B01J23/656B01D53/86B01D53/44
CPCB01D53/8687B01J23/002B01J23/6562B01D2257/708B01J2523/00B01J35/396B01J2523/22B01J2523/31B01J2523/3712B01J2523/41B01J2523/72B01J2523/824B01J2523/828
Inventor 饶超郝士杰张辉吕衍安潘丞业蔡晓江胡怡帆岳军贾莉伟
Owner WUXI WEIFU ENVIRONMENT PROTECTION CATALYST
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