Integrated SCR and AMOx catalyst systems

US8293182B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• R. Samuel Boorse · Skillman, US
• Matthew Tyler Caudle · Hillsborough Township, US
• Martin Dieterle · Ludwigshafen, DE
• Sanath Kumar · Woodbridge, US
• Kenneth E. Voss · Iselin, US

Key dates

• Filing date: May 5, 2010
• Grant date: Oct 23, 2012
• Expiry date: Nov 19, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Catalysts and catalytic articles for treating exhaust gas streams are described. In one or more embodiments, a catalyst system includes a first zone to abate nitrogen oxides by selective catalytic reduction, a second zone to oxidize ammonia and a third zone to oxidize carbon monoxide and hydrocarbons. Methods for treating the exhaust gas stream are also provided. Methods of making and using such catalysts and catalytic articles are also described.