Patent · US Active

Transition metal/zeolite SCR catalysts

US8603432B2 · kind B2 · utility

17Cited by

61References

14Claims

0Family size

Inventors

Paul Joseph Andersen · Audubon, US
Jillian Elaine Bailie · Reading, GB
John Leonello Casci · Redcar, GB
Hai-Ying Chen · Conshohocken, US
Joseph Michael Fedeyko · Glen Mills, US
Rodney Foo · Nivelles, BE
Raj Rao Rajaram · Slough, GB

Key dates

Filing date	Jun 20, 2011
Grant date	Dec 10, 2013
Priority date	—
Expiry date	Aug 18, 2031

Classification

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

Abstract

A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.

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