Multifunctional catalyst for diesel exhaust gas cleaning applications and manufacture method thereof
A technology of catalysts and catalyst carriers, applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low activity and transformation, and achieve the effect of high catalytic activity
Inactive Publication Date: 2013-09-18
FORD GLOBAL TECH LLC
View PDF14 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to limited activity in a narrow temperature range, low NO x transition, low average temperature and limited reductant dosage in diesel exhaust emissions, thus developing lean NO for diesel applications x Attempts to remove catalyst still unsuccessful
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example 1
[0115] The samples of Example 1 were the most active in terms of CO oxidation, followed by the samples presented in Example 2. The best of the commercial samples was Pt-Pd (platinum-palladium) DOC, with performance similar to the catalyst of Example 2. Low-temperature LNTs have shown CO oxidation activity close to DOC performance, but significantly lower activity in terms of propylene oxidation, whereas standard LNTs have very low activity.
[0116] In conclusion, the samples proposed in the present invention have shown better DOC performance than commercial DOC and LNT with high noble metal loading.
[0117] Lean NO x Deactivation
[0118] As already mentioned above, due to the limited activity in a narrow temperature range, fabrication so far has been able to passively reduce NO x Lean NO x Attempts to remove the catalyst were still unsuccessful. However, given the opportunity for modern diesel engines to use alternating lean-rich operating regimes, lean NO x The...
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
| Property | Measurement | Unit |
|---|---|---|
| specific surface area | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a catalyst material for exhaust gas cleaning of combustion engine driven vehicles, especially of Diesel engine vehicles. Another focus of the current invention is a process for the preparation of a catalytic material for exhaust gas cleaning of combustion engine driven vehicles, especially of Diesel engine vehicles as well as the catalyst material obtainable by that process. The invention further relates to a catalyst for exhaust-gas cleaning of combustion engine driven vehicles, especially Diesel vehicles, containing such catalyst materials and further a catalyst system whereby this catalyst is part of said catalyst system.
Description
technical field [0001] The present invention relates to a catalyst for exhaust gas cleaning of internal combustion engine driven vehicles, in particular diesel engine vehicles. A further focus of the invention is a process for the preparation of catalytic materials (catalyst materials) for exhaust gas cleaning of internal combustion engine driven vehicles, in particular diesel engine vehicles, and the catalytic materials obtainable by this process. [0002] The invention also relates to a catalyst comprising such a catalytic material for exhaust gas cleaning of internal combustion engine driven vehicles, in particular diesel engine vehicles, and also to an aftertreatment system comprising the catalyst. Background technique [0003] Catalysts for exhaust gas cleaning of internal combustion engines are well known. Especially for diesel engines, a large number of different catalytic materials and generally different types of catalysts are used. [0004] Currently, there are t...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/63B01J21/06B01J21/04B01J37/02B01J37/08F01N3/28F01N3/36B01D53/94B01D53/56B01D53/62B01D53/72
CPCB01J23/63B01D2255/20715B01D2255/2092B01D2255/1021B01D53/945B01D2258/012B01D2255/1025Y02T10/22B01J35/1014B01J37/0203B01D2255/206B01J35/04B01J37/0244B01J37/06B01J23/464Y02A50/20Y02T10/12B01J35/613
Inventor 布伦丹·卡伯里阿尔贝特·奇加波夫罗伯特·乌克罗佩克
Owner FORD GLOBAL TECH LLC