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Motorcycle catalytic converter capable of reaching motorcycle national IV standards and method for preparing motorcycle catalytic converter

A technology for motorcycles and catalytic converters, which is applied in the field of motorcycle catalytic converters and its preparation, can solve the problems that motorcycle exhaust emissions are difficult to meet the National IV standard, the preparation process is complicated, and the catalytic effect is not good, so as to achieve good catalytic effect and preparation The method is simple and the effect is better

Inactive Publication Date: 2019-02-19
浙江欧信环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current situation, the existing motorcycle catalysts are mostly prepared with a single modified alumina, which has high ignition temperature, poor activity, poor catalytic effect, and complicated preparation process, making it difficult for motorcycle exhaust emissions to meet National IV standards. standard

Method used

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  • Motorcycle catalytic converter capable of reaching motorcycle national IV standards and method for preparing motorcycle catalytic converter
  • Motorcycle catalytic converter capable of reaching motorcycle national IV standards and method for preparing motorcycle catalytic converter
  • Motorcycle catalytic converter capable of reaching motorcycle national IV standards and method for preparing motorcycle catalytic converter

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A motorcycle catalytic converter that meets the National IV standard described in this embodiment includes a metal honeycomb carrier and a catalyst coating, wherein the metal honeycomb carrier is an S-type with a specification of Φ20×30 (mm) and a mesh number of 300 cpsi Cellular carrier.

[0037] The catalyst coating, in terms of the total weight of oxides, includes the following components and content: composite modified alumina Ce 15 Zr 5 La 5 Al 75 o 140 Accounting for 19.8597%, modified alumina La-Al 2 o 3 Accounting for 24.8247%, the oxygen storage material Ce 40 Zr 50 La 5 Y 5 o 195 Accounting for 44.6844%, the catalytic active component is a mixture of oxides of Pt, Pd, and Rh, accounting for 0.5844%, 0, and 0.1169%, respectively, and the catalyst promoter is a mixture of oxides of Ce, La, and Zr, accounting for 2.979%, respectively. 0.993%, 1.986%, binder accounted for 3.9719%. The binder is selected from aluminum sol.

[0038] It should be noted t...

Embodiment 2

[0048] Under other conditions remaining unchanged, select S-shaped metal honeycomb carrier with a specification of Φ42×140 (mm) and a mesh number of 300 cpsi, and similarly prepare catalytic converter B.

Embodiment 3

[0050] Same as catalyst A, change the composition of composite modified alumina to Ce 20 Zr 10 La 5 Al 65 o 165 , in the same way to make catalytic converter C.

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Abstract

The invention discloses a motorcycle catalytic converter capable of reaching the motorcycle national IV standards. The motorcycle catalytic converter comprises metal honeycomb carriers and catalyst coatings. The catalyst coatings comprise, by weight on the basis of the total weight of oxide, 15%-50% of composite modified aluminum oxide, 15%-50% of modified aluminum oxide, 30%-50% of oxygen storagematerials, 0.2%-5% of catalytic active components, 5%-10% of catalyst auxiliaries and 3%-5% of binders. The sum of the weight percentages of the composite modified aluminum oxide, the modified aluminum oxide, the oxygen storage materials, the catalytic active components, the catalyst auxiliaries and the binders is 100%. The motorcycle catalytic converter has the advantages of low ignition, high activity, stability, durability and conversion ratio and wide air-fuel ratio window. Besides, good catalytic purification effects can be realized by the motorcycle catalytic converter. The invention further discloses a method for preparing the motorcycle catalytic converter.

Description

technical field [0001] The invention relates to the field of automobile exhaust emissions, in particular to a motorcycle catalytic converter meeting the National IV standards for motorcycles and a preparation method thereof. Background technique [0002] With the promulgation and implementation of the national IV standard for the motorcycle industry, the requirements for the control of motorcycle exhaust emissions are becoming more and more stringent. How to improve motorcycle after-treatment technology to reduce exhaust pollution has become the focus of attention of people in the same industry. At present, the pollutants in motorcycle exhaust are mainly treated by using catalytic converters, and the exhaust pollutants mainly include carbon monoxide, nitrogen oxides, hydrocarbons, etc. [0003] Compared with National III, National IV puts forward stricter limit requirements in terms of emission limits and durability. Among them, in terms of emission limits: CO, HC, NO X E...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63
CPCB01J23/63
Inventor 李益建史鹏吴艳李彪郭娅青
Owner 浙江欧信环保科技有限公司
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