Patent · US Active

Oxidation catalyst for commercial vehicles comprising a diesel motor

US8445403B2 · kind B2 · utility

1Cited by

11References

21Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Stéphanie Frantz · Soest, DE
Frank-Walter Schuetze · Haibach, DE
Anke Woerz · Frankfurt, DE
Gerald Jeske · Neuberg, DE

Key dates

Filing date	Jun 9, 2009
Grant date	May 21, 2013
Priority date	—
Expiry date	Jun 9, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An oxidation catalyst is described for the exhaust gas purification of utility vehicles with diesel engines, which contains a substrate and a catalytically active coating of platinum, active aluminum oxide and aluminum-silicon mixed oxide. The two oxidic support materials, aluminum oxide and aluminum-silicon mixed oxide, are catalytically activated with platinum, the majority of platinum being present on the active aluminum oxide. The oxidation catalyst is distinguished by good NO oxidation rates together with a high poisoning resistance against sulfur compounds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.