Patent · US Active

Particle filter with SCR-active coating

US10961886B2 · kind B2 · utility

0Cited by

0References

11Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Anke Schuler · Niedernberg, DE
Franz Dornhaus · Scheinfeld, DE

Key dates

Filing date	Sep 20, 2017
Grant date	Mar 30, 2021
Priority date	—
Expiry date	Sep 20, 2037

Classification

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

Abstract

The present invention relates to a particle filter which comprises a wall-flow filter and SCR-catalytically active material, wherein the wall-flow filter comprises ducts which extend in parallel between a first and a second end of the wall-flow filter and which are alternately closed off in gas-type fashion either at the first or at the second end and which are separated by porous walls, and wherein the SCR-active material comprises a zeolite which is exchanged with copper and/or iron and which is situated in the form of a coating in the porous walls of the wall-flow filter, characterized in that the SCR-catalytically active coating comprises palladium.

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