Automobile exhaust soot particle trapping burner

A technology of soot particles and automobile exhaust, which is applied in the field of automobile parts, can solve the problems of high price of three-way catalytic converters, and achieve the effect of low cost and easy installation

Active Publication Date: 2014-04-30
广东联南环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to protect the environment, the three-way catalytic converter should be replaced immediately after it fails, but because the three-way catalytic converter is expensive, it is not a small burden for car owners

Method used

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  • Automobile exhaust soot particle trapping burner
  • Automobile exhaust soot particle trapping burner
  • Automobile exhaust soot particle trapping burner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation of the carrier: mix kaolin and activated carbon in a ratio of 1:1 by weight, add water and grind to form porcelain clay, and make it into a circular shape with a thickness of 5mm, a diameter of 5.5cm and 8.5cm, and a honeycomb hole with 4 types of apertures for each specification. Honeycomb body. The four apertures are 1mm, 1.6mm, 2.3mm, and 3mm. There are a total of 99 holes for 1mm-diameter blanks with a diameter of 5.5cm, 89 holes for 1.6mm-diameter blanks, 79 holes for 2.2mm-diameter blanks, and 69 holes for 3mm-diameter blanks. There are 236 holes in total for 1mm-diameter blanks with a diameter of 8.5cm, 212 holes for 1.6mm-diameter blanks, 188 holes for 2.2mm-diameter blanks, and 164 holes for 3mm-diameter blanks. After the green body is dried in the sun, put it into a kiln, heat it up to 500°C at a rate of 60°C / hour, hold it for 1 hour, and then heat it up to 1050°C at a rate of 100°C / hour, anneal and cool to obtain a carrier.

[0025] The preparat...

Embodiment 2

[0034] Preparation of carrier: replace kaolin with cohesive marine soil, and other process parameters are the same as in Example 1.

[0035] The preparation of three-way catalyst: take copper nitrate (Cu(NO 3 ) 2 ·3H 2 O) 241.6 grams, manganese nitrate (Mn(NO 3 ) 2 ·6H 2 O) 125.5 g, potassium nitrate (KNO 3 ) 20 grams, cerous nitrate (Ce(NO 3 ) 3 ·6H 2 O) 868 grams and zirconium nitrate (Zr(NO 3 ) 4 ·5H 2 O) 858 grams, after adding 15 liters of water to dissolve, citric acid monohydrate (C 6 h 8 o 7 ·H 2 O) 1200 grams and 120 grams of polyethylene glycol, evaporated to remove water after complete dissolution, to obtain a gel, the gel was dried at 110 ° C for 24 hours, and then put into a muffle furnace for pre-calcination at 350 ° C for 1 hour, and then in Calcined at 650°C for 3 hours and cooled to obtain a three-way catalyst.

[0036] The loading of three-way catalyst: process parameter is identical with embodiment 1.

[0037] Assembly of burner: same as em...

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PUM

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Abstract

The invention discloses an automobile exhaust soot particle trapping burner. The automobile exhaust soot particle trapping burner comprises a shell, a cellular carrier and a three-way catalyst. The shell is filled with the cellular carrier. The three-way catalyst is attached to the carrier and prepared through a method which includes the steps that water-soluble copper salt, water-soluble manganese salt, water-soluble sylvite, water-soluble cerium salt and water-soluble zircon salt are taken and are then dissolved in water, citric acid and polyethylene glycol are added, the water is removed through evaporation after the water-soluble copper salt, the water-soluble manganese salt, the water-soluble sylvite, the water-soluble cerium salt and the water-soluble zircon salt are completely dissolved to obtain gel, and the gel is dried and roasted to obtain the three-way catalyst. The automobile exhaust soot particle trapping burner has a low activation temperature, can be externally connected to the tail end of an automobile exhaust pipeline to trap and burn soot, can remove 80%-95% of soot, 70%-90% of CO, 80%-90% of HC and 50%-70% of NOx at the early use stage, and is easy and convenient to install; the automobile exhaust soot particle trapping burner can still work after an automobile runs for twenty thousand to thirty thousand kilometers, and the cost of the automobile exhaust soot particle trapping burner is far lower than that of an existing three-way catalytic converter.

Description

technical field [0001] The invention relates to auto parts, in particular to an auto exhaust soot particle trapping burner connected to an auto exhaust pipe for trapping and burning soot and purifying CO, HC and NOx at the same time. Background technique [0002] An automobile exhaust system generally consists of an exhaust manifold, an exhaust pipe, a catalytic converter, an exhaust temperature sensor, an automobile muffler, and an exhaust tailpipe. [0003] Catalytic converters, also known as three-way catalytic converters, can convert harmful gases such as CO, HC and NOx emitted from automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction. When the high-temperature automobile exhaust gas passes through the purification device, the purification agent in the three-way catalytic converter will enhance the activity of the three gases CO, HC and NOx, and promote them to undergo a certain oxidation-reduction chemical reaction, in whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/025
CPCY02T10/12
Inventor 黄育新肖亮洪郭岩
Owner 广东联南环保科技有限公司
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