EP0445408A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process for the reduction of nitrogen oxides contained in waste gases
Assignee: Bayer AG
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Filing: 1990-12-20
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Granted: —
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Expires: 2010-12-20
Abstract
Abstract Translated from German Bei einem einen zeolithhaltigen Katalysator verwendenden Verfahren zur Reduktion von in Abgasen enthaltenen Stickoxiden wird als dem Abgas zuzugebendes Reduktionsmittel Harnstoff verwendet und werden dem zeolithischen Katalysator Oxide der 4., 5., 6. Periode und/oder Oxide von seltenen Erden beigemischt. In a method using a zeolite-containing catalyst for reducing nitrogen oxides contained in exhaust gases, urea is used as the reducing agent to be added to the exhaust gas, and oxides of the 4th, 5th, 6th period and / or oxides of rare earths are mixed with the zeolitic catalyst.
Inventors
- 👤 Wolfgang Dr. Ing. Held
- 👤 Axel Dr.-Ing. König
- 👤 Lothar Dr. Dipl.-Chem. Puppe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 09:35
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; B01J29/42; B01J29/46; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01D53/9418; F; F01; F01N; F01N13/00; F01N13/009; B01D2251/00; B01D2251/20; B01D2251/206; B01D2251/2067; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20761; B01D2255/50; F01N2370/00; F01N2370/02; F01N2370/04; F01N2610/00; F01N2610/02; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/206; F01N3/208; F02; F02B; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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References Cited (Backward Citations)
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