Zirconium based nitrogen oxide adsorbent and regeneration method thereof |
Title： |
| Zirconium based nitrogen oxide adsorbent and regeneration method thereof |
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Application Number： |
200410000292 |
Application Date： |
2004/01/15 |
Announcement Date： |
2004/12/29 |
Pub. Date： |
2006/11/08 |
Publication Number： |
1557537 |
Announcement Number： |
1283353 |
Grant Date： |
2006-11-8 |
Granted Pub. Date： |
2006-11-8 |
ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
B01J 20/06, B01J 20/34 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Li Weibin, Yang Xufei |
Key Words： |
Zirconium based nitrogen oxide, adsorbent, regeneration method |
Abstract： |
The present invention belongs to the field of environment protection technology. The compound oxide adsorbent has zirconium oxide base and modifying Ag in 0-10 wt% and Mn in 5-50 wt%. The adsorbed and saturated adsorbent is heated at 250-600 deg.c inside inert atmosphere or reducing atmosphere to release adsorbed nitrogen oxide or converted the adsorbed nitrogen oxide into nitrogen before being re-used. The adsorbent of the present invention is suitable for adsorption of nitrogen oxide at 10-200 deg.c and has very high nitrogen oxide adsorbing amount. The adsorbent of the present invention has higher nitrogen oxide adsorbing activity in the case of existing water vapor; contains no noble metal and thus has low cost. The present invention may be used in processing tail gas of diesel engine and gasoline engine. |
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 Relevancy information |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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