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Cleaning agent for automobile three-way catalysts

A three-way catalyst and cleaning agent technology, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, chemical instruments and methods, etc., can solve the problems of excessive exhaust gas, increased fuel consumption, decreased vehicle power, etc. The effect of power, prolonging service life and reducing fuel consumption

Inactive Publication Date: 2009-09-09
于波 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, with the rapid development of my country's automobile industry, various brands of automobiles have rapidly spread to society and families. In the use of automobiles, the quality of fuel is unstable, the content of sulfur and phosphorus antioxidants in lubricating oil is high, and road congestion is caused by many factors. Carbonization of colloid deposits in the intake and exhaust systems of the engine and the combustion system; due to the adsorption of sulfur, phosphorus and carbon monoxide produced by incomplete combustion in the fuel on the surface of the three-way catalytic converter to form chemical complexes, resulting in the blockage of the three-way catalytic converter and failure; The three-way catalytic converter is clogged, causing vehicle power to drop, fuel consumption to increase, and exhaust gas to exceed the standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The weight percent content of the cleaning agent of automobile three-way catalytic converter is: sodium tripolyphosphate 3%, tartaric acid 5%, urotropine 1.5%, hydrofluoric acid 1.8%, peracetic acid 0.5%, citric acid 1%, 8% water, mixed and stirred.

Embodiment 2

[0010] The percentage by weight of the cleaning agent of the automobile three-way catalytic converter is: sodium tripolyphosphate 5%, tartaric acid 8%, urotropine 2.5%, hydrofluoric acid 3.8%, peracetic acid 1.5%, citric acid 5%, 18% water, mixed and stirred.

Embodiment 3

[0012] The percentage by weight of the cleaning agent of the automobile three-way catalytic converter is: sodium tripolyphosphate 4%, tartaric acid 6%, urotropine 2%, hydrofluoric acid 2.5%, peracetic acid 1%, citric acid 3%, 12% water, mixed and stirred.

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PUM

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Abstract

The invention provides a cleaning agent for automobile three-way catalysts, which relates to a synthetic acidic cleaning agent for exhaust-gas filters of vehicles. The invention aims to provide the cleaning agent for automobile three-way catalysts, which has the functions of improving and reactivating the three-way catalysts and can prolong the life span of the three-way catalysts. The cleaning agent for automobile three-way catalysts has the following raw materials in percentage by weight: 3 to 5 percent of trimeric sodium phosphate, 5 to 8 percent of tartaric acid, 1.5 to 2.5 percent of urotropine, 1.8 to 3.8 percent of hydrofluoric acid, 0.5 to 1.5 percent of peracetic acid, 1 to 5 percent of citric acid, and 8 to 18 percent of water. The cleaning agent is prepared by mixing and then stirring the raw materials.

Description

Technical field: [0001] The present invention relates to a synthetic acid cleaning agent for motor vehicle exhaust filters. Background technique: [0002] At present, with the rapid development of my country's automobile industry, various brands of automobiles have rapidly spread to society and families. In the use of automobiles, the quality of fuel is unstable, the content of sulfur and phosphorus antioxidants in lubricating oil is high, and road congestion is caused by many factors. Carbonization of colloidal deposits in the intake and exhaust systems of the engine and the combustion system; due to the adsorption of sulfur, phosphorus and carbon monoxide produced by incomplete combustion in the fuel on the surface of the three-way catalytic converter to form chemical complexes, resulting in the blockage of the three-way catalytic converter and failure; The three-way catalytic converter is clogged, resulting in reduced vehicle power, increased fuel consumption, and excessive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/62B01J38/70B01J38/48B08B3/08
Inventor 于波刘扬李永志
Owner 于波
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