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

Preparation method of supported catalyst and application of supported catalyst in catalytic oxidation of benzene

A catalyst, supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of easy deactivation, etc. The effect of wide temperature range, broad development space and market application value

Active Publication Date: 2019-12-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of catalyst has a very superior effect in catalyzing the water-gas reaction, but there is still a certain gap from industrial use. For example, there is a problem that the catalyst is easily deactivated due to long-term contact with water gas.

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
  • Preparation method of supported catalyst and application of supported catalyst in catalytic oxidation of benzene
  • Preparation method of supported catalyst and application of supported catalyst in catalytic oxidation of benzene
  • Preparation method of supported catalyst and application of supported catalyst in catalytic oxidation of benzene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1 prepares (Pt / TiO 2 )-nCe(n=C Ce :C Pt )

[0030] 1) Dissolve 10.9mg of potassium tetrachloroplatinate in 1mL of water and place in a 25mL beaker, then add 500mgTiO 2After stirring at 400rpm for 30min, 1mL aqueous solution of 72.0mg cerium ammonium nitrate was added, stirred for 4h, put into a vacuum drying oven, and dried in vacuum overnight at room temperature.

[0031] 2) The next day, the catalyst was taken out from the vacuum drying oven and roasted in a muffle furnace at 350°C, 550°C, and 850°C respectively to prepare (1wt%Pt / TiO 2 )-5Ce catalyst.

Embodiment 2-4

[0033] Adopt the method for embodiment 1 to prepare catalyst, difference is to change noble metal precursor salt, prepare respectively (1wt%Pd / TiO 2 )-5Ce, (1wt%Au / TiO 2 )-5Ce, (1wt%Ag / TiO 2 )-5Ce catalyst.

Embodiment 5-9

[0035] Adopt the method for embodiment 1 to prepare catalyst, difference is to change metal oxide support, prepare respectively (1wt%Pt / Al 2 o 3 )-5Ce, (1wt%Pt / SiO 2 )-5Ce, (1wt%Pt / MnO 2 )-5Ce, (1wt%Pt / Fe 2 o 3 )-5Ce, (1wt%Pt / CuO)-5Ce.

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 belongs to the field of environmental catalysis, and particularly relates to a preparation method of a supported catalyst and application of the supported catalyst in catalytic oxidationfor benzene removal. A stepwise immersion method is adopted, a noble metal salt is mixed with a metal oxide firstly, then the mixture and a rare earth metal salt are immersed, and then direct curingis performed in the air, or after high temperature reduction is performed in a H2 atmosphere, curing treatment is performed. Interactions between metal and the rare earth metal oxide and between the rare earth metal oxide and a carrier are regulated through in-situ loading of the rare earth metal oxide, so that the activity of the supported catalyst for catalytic oxidation of benzene is improved greatly. The synthesis method has universality, simple operation, no obvious metal loss and easy enlarged synthesis, the prepared catalyst has a wide temperature range for catalytic oxidation of benzene, and the catalyst has good stability and is not easy to inactivate at high temperatures.

Description

technical field [0001] The invention relates to the technical field of benzene treatment of volatile substances, in particular to a preparation method of a supported catalyst and its application in the catalytic oxidation reaction of benzene. Background technique [0002] Volatile organic compounds (volatile organic compounds, VOCs) are an important part of atmospheric gaseous pollutants, which have serious harm to the ecological environment and human health. As a common volatile organic compound, benzene is widely used in indoor building materials, such as paints, coatings, and adhesives. Therefore, benzene has become one of the main indoor pollutants. Investigations and studies have found that benzene can damage the nervous system and hematopoietic system, causing fewer white blood cells and platelets in the blood, long-term exposure can cause leukemia, and pollute the water environment. In 2007, my country has confirmed that benzene is a carcinogen. Therefore, removing ...

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): B01J23/63B01J23/66B01J23/656B01J23/89B01D53/86B01D53/72
CPCB01D53/8668B01J23/63B01J23/6562B01J23/66B01J23/894
Inventor 黄家辉谢妍胡琪
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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