Unlock instant, AI-driven research and patent intelligence for your innovation.

Auto exhaust catalyst containing carrier cordierite ceramic and auxiliary CuO and preparation method thereof

A technology of ceramic carrier and automobile exhaust, which is applied in chemical instruments and methods, separation methods, and separation of dispersed particles. It can solve the problems of expensive precious metals, low toxicity, high toxicity, etc., and achieve simple equipment, high safety, and stability. sex high effect

Inactive Publication Date: 2012-03-28
CHENGDU FANXINJIA TECH
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of automobile exhaust catalyst with low toxicity and high activity, aiming at the disadvantages of high price and high toxicity of precious metals in the prior art

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
  • Auto exhaust catalyst containing carrier cordierite ceramic and auxiliary CuO and preparation method thereof
  • Auto exhaust catalyst containing carrier cordierite ceramic and auxiliary CuO and preparation method thereof
  • Auto exhaust catalyst containing carrier cordierite ceramic and auxiliary CuO and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0014] Example 1 Ce-Zr-La composite oxide, CuO and Pd / cordierite synthesis:

[0015] Add Ce-Zr-La composite oxide and CuO to 30% of the total amount of the mixture in deionized water at a mass ratio of 3:5, add it to a ball mill tank, and ball mill for 5 hours to make a slurry. Immerse the cordierite honeycomb ceramic carrier in the slurry, take it out after 2 minutes, dry it in the air, and bake it at 115°C for 4 hours. Immerse the dried carrier into PdCl containing Pd2.2g / L 2 Ammonia solution, stirred for 4h. Take it out, dry it in the air, and bake it at a certain temperature for 4 hours. Dip the dried carrier into KBH 4 solution, reacted for 30 minutes, washed with deionized water, and then performed electroless plating at room temperature, reacted for 30 minutes and washed with deionized water until neutral, and dried at 115 ° C to obtain Ce-Zr-La composite oxides, CuO and Pd / cordierite.

example 2

[0016] Example 2 Catalyst to the catalytic activity investigation of automobile exhaust:

[0017] Use the prepared catalyst of example 1 to NO in automobile exhaust X , CO and HC conversion rates were investigated. The test is carried out in a high temperature reaction furnace. Will contain NO, CO 2 、H 2 The mixed gas is fed into the high-temperature reaction furnace, and the temperature is raised by 10°C every minute, and finally rises to 500°C. The experimental results are shown in Table 1 and figure 1 .

[0018] Table 1

[0019]

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 auto exhaust catalyst containing a carrier cordierite ceramic and an auxiliary CuO and a preparation method thereof. The catalyst is characterized by being prepared by taking cordierite honeycomb ceramic as a carrier and a Ce-Zr-La composite oxide and CuO as auxiliaries and loading an active ingredient Pd. The catalyst has higher rate of conversion of NO, CO and HC seriously polluting the air in the auto exhaust without actions of other substances and has low toxicity and high catalytic activity.

Description

technical field [0001] The present invention relates to a kind of automobile tail gas catalyst containing cordierite ceramic carrier, CuO auxiliary agent and preparation method, specifically it is the pollution substance NO in automobile tail gas X , Catalyst and synthesis technology for comprehensive treatment of HC and CO. Background technique [0002] Cars have become an essential part of our daily lives. While cars bring us convenience, they also produce many undesirable by-products. Tail gas pollution is one of the by-products and also one of the main sources of air pollution. Most of the NO in the city X , CO, HC and CO 2 are produced from vehicle exhaust, CO 2 It is one of the main causes of air pollution and greenhouse effect. NO X , CO, and HC not only cause damage to the human body, but also produce blue photochemical smog under certain conditions, causing the death of vegetation and destroying the environment in which human beings live. [0003] At present...

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
IPC IPC(8): B01J23/89B01D53/94B01D53/56B01D53/62B01D53/72
Inventor 高静袁代华邓金智
Owner CHENGDU FANXINJIA TECH