Patent · US Active

Catalytic reduction of NOx

US8833062B1 · kind B1 · utility

2Cited by

44References

25Claims

0Family size

Assignees

Daimier AG · DE
HJS EMISSION TECHNOLOGY GMBH & CO. KG · DE
Johnson Matthey Public Limited Company · GB

Inventors

Anders Andreasson · Kungsängen, SE
Guy Richard Chandler · Cambridge, GB
Claus Friedrich Goersmann · Maidstone, GB
James Patrick Warren · Cambridge, GB
Georg Huethwohl · Soest, DE

Key dates

Filing date	Mar 15, 2013
Grant date	Sep 16, 2014
Priority date	—
Expiry date	May 21, 2033

Classification

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

Abstract

A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.

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