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

Anti-high temp. sintered catalyst carrier materia, its preparing method and use

A catalyst carrier, high temperature resistance technology, applied in catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of poor oxidation resistance of SiC, and the surface catalyst is not easily attached, and achieve excellent high temperature resistance sintering. performance, good chemical stability, the effect of improving sintering resistance

Inactive Publication Date: 2006-06-28
CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oxidation resistance of SiC is not good, and it is easily oxidized to SiO in the environment above 800 °C and water vapor. 2 , and is sintered, and its surface is smooth, the catalyst is not easy to adhere

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-high temp. sintered catalyst carrier materia, its preparing method and use
  • Anti-high temp. sintered catalyst carrier materia, its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 0.5695g (1.75×10 -3 mol) of La 2 o 3 Concentrated HNO 3 Dissolved to get La(NO 3 ) 3 solution; the ZrOCl of 1.1278g 2 ·8H 2 O(3.50×10 -3 mol) was dissolved in deionized water and mixed with La(NO 3 ) 3 Mix the solutions to obtain solution (1); add 10 g of PVP or PVA to solution (1) and stir with an electromagnetic stirrer for 4 hours to obtain solution (2); evaporate solution (2) to dryness at 323K ~ 353K on a water bath, and then roast at 1273K The powder (3) was obtained at 12h. The specific surface of the powder (3) reaches 9.1m after 12h calcination at 1273K and 1673K 2 g -1 and 1.0m 2 g -1 .

Embodiment 2

[0026] 0.5695g (1.75×10 -3 mol) of La 2 o 3 Concentrated HNO 3 Dissolved to get La(NO 3 ) 3 Solution; 0.5632g (1.75×10 -3 mol) of ZrOCl 2 ·8H 2 O dissolved in deionized water to give ZrOCl 2 Solution; 0.8682g (1.75×10 -3 mol) of Ce(NO 3 ) 4. 6H 2 Dissolving O in water yields Ce(NO 3 ) 4 solution; the La(NO 3 ) 3 solution, ZrOCl 2 solution and Ce(NO 3 ) 4 Mix the solutions to obtain solution (1); add 10 g of PVP or PVA to solution (1) and stir with an electromagnetic stirrer for 4 hours to obtain solution (2); evaporate solution (2) to dryness on a water bath, and then roast at 1273K for 12 hours to obtain a powder (3). The specific surface of the powder (3) reaches 9.1m after 12h calcination at 1273K and 1673K 2 g -1 and 2.1m 2 g -1 .

Embodiment 3

[0028] The solution (2) is spun into fiber (4) by electrospinning technology, the fiber (4) is dried at 323K-353K for 12 hours, and then calcined at 1273K for 12 hours to obtain the fiber, the structure of which is shown in figure 2 . The specific surface of the fibers after 12h calcination at 1273K and 1673K can reach 9.0m 2 g -1 and 2.5m 2 g -1 . During the electrospinning process of the fiber (4), the diameter of the spinning hole is between 0.5 mm and 1.5 mm, the distance between the spinning hole and the spinning collecting plate is 100 mm to 300 mm, and the spinning hole and the spinning collecting plate are The electrostatic voltage between them is 10,000 volts to 50,000 volts, and the electrostatic voltage is generated by an electrostatic generator.

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
melting pointaaaaaaaaaa
specific surface areaaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

A high-temp sinter resistant carrier of the catalyst used for catalytic combustion of gas turbine and boiler has a chemical formula R2O3-BO2, where R is chosen from La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and B is chosen from Zr, Hf and Ce. Its preparing process is also disclosed.

Description

technical field [0001] The invention relates to a class of high-temperature catalyst carrier materials and belongs to the technical field of high-temperature catalytic combustion. Background technique [0002] With the increasing global demand for natural gas energy, the safe, efficient and low-pollution combustion technology of natural gas is very important. The combustion flame temperature of the fuel can reach above 1773K, at such a high temperature, the N in the air 2 easy to be O 2 Oxidation to NO x , Pollution to the environment. Catalytic combustion technology is a process in which fuel reacts with oxygen in the air under the action of a solid catalyst to release heat. Catalytic combustion can not only improve the energy efficiency of fuel and save energy, but also effectively reduce the combustion reaction temperature (usually down to 1473K ~ 1673K), reduce NO x emissions. As an environmentally friendly process, catalytic combustion not only has high energy uti...

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): B01J32/00B01J21/06B01J23/10
Inventor 曹学强李佳艳钟兴华张彦飞代辉
Owner CHANGZHOU INST OF ENERGY STORAGE MATERIALS &DEVICES
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