Patent · US Active

Method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines

US9433899B2 · kind B2 · utility

0Cited by

16References

14Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Ruediger Hoyer · Alzenau, DE
Anke Schuler · Niedernberg, DE
Stefan Franoschek · Nettetal, DE
Thomas R. Pauly · Lansing, US
Gerald Jeske · Neuberg, DE

Key dates

Filing date	Mar 26, 2013
Grant date	Sep 6, 2016
Priority date	—
Expiry date	Mar 26, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02A50/20
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for removing carbon monoxide and hydrocarbons from the exhaust gas of lean-burn internal combustion engines, said exhaust gas being passed over a catalyst which contains platinum supported on one or more refractory supporting materials, pure cerium oxide, and optionally an additional noble metal selected from the group consisting of platinum, palladium and rhodium, wherein the pure cerium oxide is in close contact with the noble metal.

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