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Catalyst for decomposing nitrous oxide and method for performing processes comprising formation of nitrous oxide
US8992870B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992870-B2 |
| Application number | US-58872209-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 26, 2009 |
| Priority date | Jul 5, 2000 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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The present invention relates to a catalyst comprising 0.1-10 mol % Co 3-x M x O 4 , where M is Fe or Al and x=0-2, on a cerium oxide support for decomposition of N 2 O in gases containing NO. The catalyst may also contain 0.01-2 weight % ZrO 2 . The invention further comprises a method for performing a process comprising formation of N 2 O. The N 2 O containing gas is brought in contact with a catalyst comprising 0.1-10 mol % Co 3-x M x O 4 , where M is Fe or Al and x=0-2, on a cerium oxide support, at 250-1000° C. The method may comprise that ammonia is oxidized in presence of an oxidation catalyst and that the thereby formed gas mixture is brought in contact with the catalyst comprising the cobalt component on cerium oxide support at a temperature of 500-1000° C.
First claim
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The invention claimed is: 1. A catalyst for the decomposition of N 2 O at temperatures of 250-1000° C., wherein the catalyst comprises 0.1-10 mol % Co 3-x Al x O 4 , where 0.25≦x<2, on a cerium oxide support, wherein the catalyst decomposes N 2 O, and wherein the catalyst has a high selectivity for decomposing N 2 O without significant destruction of NO. 2. The catalyst according to claim 1 , wherein the catalyst contains 1-5 mol % of Co 3-x Al x O 4 .…
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Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Cross-Sectional Technologies · mapped topic
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- What does patent US8992870B2 cover?
- The present invention relates to a catalyst comprising 0.1-10 mol % Co 3-x M x O 4 , where M is Fe or Al and x=0-2, on a cerium oxide support for decomposition of N 2 O in gases containing NO. The catalyst may also contain 0.01-2 weight % ZrO 2 . The invention further comprises a method for performing a process comprising formation of N 2 O. The N 2 O containing gas is brought in contact with a…
- Who is the assignee on this patent?
- Nirisen Øystein, Schöffel Klaus, Waller David, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification B01J23/83. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 31 2015 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).