Metal Oxide Mesocrystal, and Method for Producing Same
US-2016001268-A1 · Jan 7, 2016 · US
SCR catalyst and method of preparation thereof
US9527071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9527071-B2 |
| Application number | US-201214405851-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2012 |
| Priority date | Jun 6, 2012 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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NH 3 —SCR catalyst, containing iron promoted beta-zeolite, cerium oxide and titanium oxide and optionally further containing at least one of tungsten oxide, neodymium oxide, silicon oxide and diatomaceous earth, and method of preparation thereof.
First claim
Opening claim text (preview).
The invention claimed is: 1. SCR catalyst composition deposited on a substrate, consisting of 5 to 60 wt % iron promoted beta zeolite, 20 to 70 wt % titanium oxide, 2 to 20 wt % cerium oxide, 2 to 6 wt % tungsten oxide, 2 to 6 wt % silicon oxide, and 0 to 60 wt % diatomaceous earth of the total catalyst composition and the substrate. 2. The SCR catalyst composition of claim 1 , wherein the iron promoted beta-zeolite contains 0.5 to 15 wt % iron of the amount of the beta-zeolite. 3. The SCR catalyst composition of claim 1 , wherein the substrate comprises a fibrous material. 4. The SCR catalyst composition of claim 3 , wherein the fibrous material consists of fibre glass or ceramic fibres. 5. The SCR catalyst composition of claim 1 , wherein the substrate is shaped in corrugated form. 6. The SCR catalyst composition according to claim 1 , wherein the substrate is a particulate wall flow filter.
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Classifications
Diesel engines and lean burn gasoline engines · CPC title
Flue gases · CPC title
Non-metallic catalysts, additives or dopants · CPC title
Silica · CPC title
Tungsten · CPC title
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- What does patent US9527071B2 cover?
- NH 3 —SCR catalyst, containing iron promoted beta-zeolite, cerium oxide and titanium oxide and optionally further containing at least one of tungsten oxide, neodymium oxide, silicon oxide and diatomaceous earth, and method of preparation thereof.
- Who is the assignee on this patent?
- Lemus-Yegres Lived J, Jakobsson Niklas Bengt, Haldor Topsoe As
- What technology area does this patent fall under?
- Primary CPC classification B01J37/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).