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Catalytic purifier for motor vehicle exhaust and its preparing method and use

A technology for catalytic purifiers and motor vehicles, applied in chemical instruments and methods, mechanical equipment, catalyst carriers, etc., which can solve the problems of purifier effectiveness, durability decline, channel wall catalyst coating peeling off, exhaust emission not up to standard, etc. , to achieve the effect of long service life, low cost and high conversion efficiency

Inactive Publication Date: 2007-06-27
陈阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a motor vehicle exhaust jet-type nano-crystal catalytic converter and its preparation method and application, to solve the problem that the existing motor vehicle exhaust three-way catalytic converter does not meet the exhaust emission standards during use and the catalyst coating on the channel wall Shedding, pollution, poisoning, the effectiveness and durability of the purifier are obviously declining year by year, etc.

Method used

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  • Catalytic purifier for motor vehicle exhaust and its preparing method and use
  • Catalytic purifier for motor vehicle exhaust and its preparing method and use
  • Catalytic purifier for motor vehicle exhaust and its preparing method and use

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Embodiment Construction

[0051] As shown in Figures 6-7, the nanocrystal catalytic purifier of the present invention comprises a reaction chamber, an exhaust gas inlet pipe 13 communicated with one side of the reaction chamber, an exhaust gas exhaust pipe 16 communicated with the other side of the reaction chamber, and a zero set in the reaction chamber. One-dimensional nanocrystal catalyst plates 1-4, one-dimensional nanocrystal catalyst plates 5-8, etc., the reaction chamber is composed of an anterior chamber and a rear chamber arranged in the reaction chamber housing 12 and the reaction chamber housing 12, forming the reaction chamber of the reaction chamber A heat shield 15 is arranged outside the casing 12 . The air intake pipe 14 is introduced from one side of the reaction chamber, and enters the rear chamber after being preheated by the tail gas in the front chamber.

[0052] Among them, the front chamber is set at an angle of 30-60 degrees to each other with four levels of 10-30nm zero-dimensi...

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Abstract

A jet-type catalytic cleaner for the tail gas of motor-driven vehicle is composed of a reaction chamber with tail gas inlet tube and tail gas outlet tube and divided into front and back chambers, and two groups of nanocrystal catalyst plates arranged respectively in said front and back chambers by the relative angle of 30-60 deg.

Description

technical field [0001] The invention relates to a three-effect catalytic purification treatment technology for motor vehicle exhaust, in particular to a motor vehicle tail gas jet-flow nano crystal catalytic purifier and its preparation method and application. Background technique [0002] The main body of the three-way catalyst purification treatment of motor vehicle exhaust is the catalyst and the carrier. [0003] (1) Catalyst carrier [0004] At present, the three-way catalyst purification treatment of motor vehicle exhaust generally adopts porous ceramics such as aluminum oxide as the carrier, and coats platinum, rhodium and other precious metal catalysts on the surface of the hole wall. 0.3-0.5mm. When the tail gas flows through the pores of the ceramic carrier 17, the thickness of about 0.05mm close to the hole wall is the directed laminar flow zone 19, and the central zone is the directed turbulent flow zone 18 (see Figure 1), and the thickness of the laminar flow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/24F01N3/28F01N7/16B01J32/00B01J23/74B01J23/86B01J23/889F01N13/16
CPCY02A50/20
Inventor 陈阳陈晓风
Owner 陈阳
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