Patent · US Active

Selective catalytic reduction catalyst

US10926251B2 · kind B2 · utility

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6References

14Claims

0Family size

Assignee

Johnson Matthey Catalysts (Germany) GmbH · DE

Inventors

Diana Biskupski · Burgkunstadt, DE
Joerg Werner Muench · Burgkunstadt, DE
Irene Piras · Unterlangenstadt, DE

Key dates

Filing date	Mar 26, 2018
Grant date	Feb 23, 2021
Priority date	—
Expiry date	Mar 26, 2038

Classification

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

Abstract

A selective catalytic reduction catalyst composition for converting oxides of nitrogen (NOx) in an exhaust gas using a nitrogenous reductant, which catalyst composition comprising a mixture of a first component and a second component, wherein the first component is the H-form of an aluminosilicate chabazite zeolite (CHA); or an admixture of the H-form of an aluminosilicate mordenite zeolite (MOR) and the H-form of an aluminosilicate chabazite zeolite (CHA); and the second component is a vanadium oxide supported on a metal oxide support, which is titania, silica-stabilized titania or a mixture of titania and silica-stabilized titania, wherein the weight ratio of the first component to the second component is 10:90 to 25:75.

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