Patent · US Active

Catalytically active particle filter with a high degree of filtration efficiency

US12018605B2 · kind B2 · utility

0Cited by

27References

21Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Martin Foerster · Büdingen, DE
Juergen Koch · Schifferstadt, DE
Manuel Gensch · Aschaffenburg, DE
Naina Deibel · Pfungstadt, DE
Antje Oltersdorf · Glückstadt, DE
Jan Schoenhaber · Darmstadt, DE

Key dates

Filing date	Dec 21, 2022
Grant date	Jun 25, 2024
Priority date	—
Expiry date	Dec 21, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2510/0682
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a wall-flow filter as a particle filter with catalytically active coatings in the channels which are closed in a gas-tight manner at the opposing closed ends of the channels A at the first end, wherein the inlet region of the filter is additionally supplied with a dry powder-gas aerosol which contains metal compounds with a high melting point (such as the metal oxides Al2O3, SiO2, FeO2, TiO2, ZnO2, etc. for example) and which is to simultaneously improve the catalytic activity and the degree of filtration efficiency with respect to the exhaust gas back-pressure.

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