Method of forming an agent and its use in desulphurisation
US-9205367-B2 · Dec 8, 2015 · US
Nitric oxide reducing catalyst, method for reducing nitric oxide, method for producing nitrogen, method for treating nitric oxide and carbon monoxide
US2016175773A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016175773-A1 |
| Application number | US-201414906782-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 24, 2014 |
| Priority date | Jul 25, 2013 |
| Publication date | Jun 23, 2016 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The nitric oxide reducing catalyst contains a negatively charged copper cluster.
First claim
Opening claim text (preview).
1 - 17 . (canceled) 18 . A method for reducing nitric oxide, comprising: a step of reducing nitric oxide to nitrogen in the presence of a negatively charged copper cluster. 19 . The method according to claim 18 , wherein the copper cluster contains 2×p copper atoms, p being an integer of not less than 4. 20 . The method according to claim 19 , wherein p is an integer of 4 to 8. 21 . The method according to claim 20 , wherein p is an integer of 4 to 6. 22 . The method according to claim 18 , wherein the copper cluster is partially oxidized. 23 . The method according to claim 22 , wherein the copper cluster contains 1 or 2 oxygen atoms. 24 . The method according to claim 18 , wherein the copper cluster is supported on a carrier. 25 . The method according to claim 18 , wherein the copper cluster is a group of copper atoms bound together. 26 . The method according to claim 25 , wherein the copper cluster is devoid of ligands. 27 . The method according to claim 26 , wherein the copper cluster contains a metal and an oxygen. 28 . The method according to claim 18 , in which the negatively charged copper cluster additionally oxidizes carbon monoxide to form carbon dioxide. 29 . The method according to claim 28 , wherein the nitric oxide and the carbon monoxide are removed from an exhaust gas. 30 . A method for treating nitric oxide and carbon monoxide, comprising: a first step of the method according to claim 18 to form an oxidized negatively charged copper cluster as well as the nitrogen; and a second step of allowing reaction of the oxidized negatively charged copper cluster with carbon monoxide to reduce the negatively charged copper cluster to its original state and carbon dioxide. 31 . The method according to claim 30 , wherein the negatively charged copper cluster reduced to the original state in the second step is reused in the first step. 32 . The method according to claim 30 , wherein the nitric oxide and the carbon monoxide are removed from exhaust gas. 33 . The method according to claim 30 , wherein the negatively charged copper cluster contains an oxygen atom, and when n represents the number of copper atoms and m represents the number of oxygen atoms, m is not more than n/2 in the first and second steps.
Assignees
Inventors
Classifications
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
- B01J23/72Primary
Copper · CPC title
Copper · CPC title
Removing carbon monoxide or hydrocarbons · CPC title
Catalysts not containing noble metals · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016175773A1 cover?
- The nitric oxide reducing catalyst contains a negatively charged copper cluster.
- Who is the assignee on this patent?
- Hirabayashi Shinichi, Ichihashi Msahiko, Toyota Motor Co Ltd, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification B01J23/72. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 23 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).