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EP0358125A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Exhaust gas catalyst having a reduced tendency of accumulating sulphur dioxide and hydrogen sulphide emissions

Assignee: Evonik Operations GmbH
•
Filing: 1989-09-01
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Granted: —
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Expires: 2009-09-01
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Abstract

Abstract Translated from German Ein oxidierend und reduzierend wirkender Abgasreinigungskatalysator für Verbrennungsmotoren mit verminderter Neigung zu Speicherung von Schwefeloxiden und H₂S-Emission enthält als Träger aktives Al₂O₃, welches mit CeO₂ und gegebenenfalls ZrO₂ sowie Pt, Pd und/oder Rh beladen ist und daneben noch 0,7 bis 20 Gew.% B₂O₃, bezogen auf Al₂O₃, enthält. An oxidizing and reducing exhaust gas purification catalyst for internal combustion engines with a reduced tendency to store sulfur oxides and H₂S emission contains active Al₂O₃ as a carrier, which is loaded with CeO₂ and optionally ZrO₂ as well as Pt, Pd and / or Rh and also 0.7 to 20 wt % B₂O₃, based on Al₂O₃, contains.

Inventors

  • 👤 Bernd Dr. Engler
  • 👤 Edgar Dr. Koberstein
  • 👤 Egbert Dr. Lox

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 17:25
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9445; B01D53/945; B01D53/74; B01D53/86; B01D53/8603; B01D53/8612; B01D53/8615; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/63; B01J23/70; B01J23/89; B01J23/8933; B01J23/894; B01J35/00; B01J35/50; B01J35/56; B01J37/00; B01J37/0009; B01J37/02; B01J37/024; B01J37/08; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12

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