Patent · US Active

Multi-functional catalysts for the oxidation of NO, the oxidation of NH3 and the selective catalytic reduction of NOx

US12258896B2 · kind B2 · utility

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15Claims

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Assignee

BASF MOBILE EMISSIONS CATALYSTS, LLC · US

Inventors

Kevin BEARD · Hannover, DE
Robert Dorner · Hannover, DE
Jan Martin Becker · Hannover, DE

Key dates

Filing date	Apr 30, 2020
Grant date	Mar 25, 2025
Priority date	—
Expiry date	Nov 7, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2590/08
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present disclosure relates to a catalyst for the oxidation of NO, for the oxidation of ammonia and for the selective catalytic reduction of NOx, the catalyst comprising a flow-through substrate, a first coating comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron, a second coating comprising a platinum group metal component supported on a non-zeolitic oxidic material and further comprising one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron and a third coating comprising a platinum group metal component supported on an oxidic material. The present disclosure further relates to an exhaust gas treatment system comprising said catalyst.

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