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

Regenerant and processing method of three-way catalytic converter of gasoline automobile

The technology of a three-way catalytic converter and a treatment method is applied in the field of regeneration of products in the automotive field, which can solve the problems of the three-way catalytic converter's weakening function of purifying exhaust gas, consuming social costs, and increasing the fuel consumption of vehicles, so as to restore the exhaust gas purification function and prolong the service life. The effect of service life and maintenance cost reduction

Inactive Publication Date: 2010-11-17
倪初宁
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The three-way catalytic converters of many vehicles are also in a state where the function of purifying exhaust gas is severely weakened, or even fails, and at the same time, the fuel consumption of the vehicle is increased by about 10%.
[0004] The developed countries in the world adopt the method of replacing the overdue and invalid three-way catalytic converters of automobiles, but the method of replacement is unacceptable for China's national conditions. Taking Chinese taxis as an example, taxis drive 100,000 kilometers every year The above means that taxis have to replace three-way catalytic converters every year, which is unbearable for taxi companies and taxi drivers. If China replaces all overdue and invalid three-way catalytic converters in automobiles, it will cost The social cost is tens of billions of RMB. Since the three-way catalyst uses imported precious metals, it will cost tens of billions of dollars of precious foreign exchange to import the catalyst alone.

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
  • Regenerant and processing method of three-way catalytic converter of gasoline automobile
  • Regenerant and processing method of three-way catalytic converter of gasoline automobile
  • Regenerant and processing method of three-way catalytic converter of gasoline automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Present embodiment provides a kind of regeneration agent of three-way catalytic converter of gasoline vehicle, is made up of following raw material by mass percentage:

[0028] Chlorine-containing solvent 0.006~0.03%

[0029] Hydrogen peroxide 0.01~0.04%

[0030] Methanol solvent 99.96~99.954%

[0031] Among them, methanol adopts a methanol solvent with a concentration of 99.99%; the solvent containing chlorine elements can use chlorine-containing compounds, specifically hydrogen chloride, dichloropropane, dichloroethane, carbon tetrachloride and other chlorine-containing compounds. A sort of;

[0032] The hydrogen chloride and hydrogen peroxide in the above raw materials are added into the methanol solvent and mixed to obtain the regeneration agent for the three-way catalytic converter of gasoline vehicles.

[0033] The working principle of the regenerant is: after the regenerant enters the combustion chamber from the engine intake pipe for combustion, a high-temper...

Embodiment 2

[0036] The present embodiment provides a method for regenerating a three-way catalytic converter of a gasoline vehicle, which is a method for regenerating the three-way catalytic converter of a gasoline vehicle using the regenerant given in Example 1 above, the method comprising:

[0037] Adopt the regeneration agent that above-mentioned embodiment 1 provides, the regeneration agent is joined in the engine combustion chamber by the vacuum tube on the automobile engine intake manifold;

[0038] After the regenerant is burned in the engine, a high-temperature oxidation environment containing chloride ions is established in the exhaust system, and the high-temperature oxidation environment is used to remove poisons such as carbon deposits and sulfur-phosphorus chemical complexes covered on the three-way catalyst in the three-way catalyst;

[0039] For the three-way catalyst deactivated due to chlorine loss and crystal grain aggregation, the regenerant can disperse the aggregated a...

Embodiment 3

[0044] In this embodiment, the regeneration agent provided in the embodiment of the present invention is described to regenerate the three-way catalytic converter of the Jetta closed-loop EFI gasoline vehicle with the three-way catalytic converter installed:

[0045] The formula of used regeneration agent is, each raw material is by mass percentage:

[0046] Hydrogen chloride 0.01%

[0047] Hydrogen peroxide 0.02%

[0048] Methanol solvent 99.97%.

[0049] Use the Jetta closed-loop EFI gasoline car with a three-way catalytic converter installed, insert the hollow needle end of the infusion set into the rubber intake vacuum tube of the car engine, and input the regenerant of the above-mentioned formula of 750 milliliters (add the methanol solvent of hydrogen chloride and hydrogen peroxide) The regeneration agent formed), the engine runs at a speed of 1500 rpm, and the regeneration agent is sucked into the combustion chamber of the engine by the effect of atmospheric pressure,...

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 a regenerant and a processing method of a three-way catalytic converter of a gasoline automobile. The regenerant comprises the following raw materials in mass percent: 0.006-0.03% of chlorine-containing solvent, 0.01-0.04% of hydrogen peroxide and 99.96-99.954% of methanol. The chlorine-containing solvent and the hydrogen peroxide in the raw materials are added into the methanol to be mixed to obtain the regenerant of the three-way catalytic converter of the gasoline automobile. The regenerant can be input into a burning chamber of an automobile engine for fully burning, then a high-temperature oxidation environment containing chlorine ions can be established in an exhaust system, the high-temperature oxidation environment can be used for removing deposited carbon and sulfur-phosphorus chemical complexes covering on the three-way catalyst in the three-way catalytic converter, and simultaneously, chlorine is replenished for the three-way catalyst which is deactivated caused by chlorine loss and grain accumulation to enable the grown grains accumulated on the surface thereof to be dispersed again, thereby realizing the regeneration of the three-way catalyst in the three-way catalytic converter.

Description

technical field [0001] The invention relates to the regeneration technology of products in the automobile field, in particular to a regeneration agent and a treatment method for a three-way catalytic converter of an automobile. Background technique [0002] All cars produced and sold in China since 2000 are equipped with closed-loop EFI engines. The biggest feature of the closed-loop EFI engine structure is the use of an air-fuel ratio feedback system centered on an oxygen sensor and a three-way catalytic converter. Whether they work normally or not Determines the engine's fuel consumption, power, emissions and other working conditions. [0003] Automotive three-way catalytic converters have a lifespan. If the three-way catalytic converter exceeds the validity period, the function of purifying exhaust gas will be weakened or even invalidated. The validity period of the three-way catalytic converter in China is about 80,000 to 100,000 kilometers. The validity period of the n...

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): B01J38/60B01J38/54F01N3/035
CPCY02T10/22Y02T10/12
Inventor 倪初宁
Owner 倪初宁
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