Molecular sieve catalyst compositions, catalyst composites, systems, and methods

US9764313B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Natalia Trukhan · Ludwigshafen, DE
• Ulrich Müller · Neustadt, DE
• Michael Breen · Erie, US
• Barbara Slawski · North Royalton, US
• Qi Fu · Shanghai, CN
• Jaya L. Mohanan · Edison, US
• Martin Kraus · Westfield, US
• Ahmad Moini · Princeton, US
• Xiaofan Yang · Knoxville, US
• John K. Hochmuth · Bound Brook, US

Key dates

• Filing date: Jun 17, 2015
• Grant date: Sep 19, 2017
• Expiry date: Jun 17, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Described is a selective catalytic reduction material comprising a spherical particle including an agglomeration of crystals of a molecular sieve. The catalyst is a crystalline material that is effective to catalyze the selective catalytic reduction of nitrogen oxides in the presence of a reductant at temperatures between 200° C. and 600° C. A method for selectively reducing nitrogen oxides and an exhaust gas treatment system are also described.