Method for forming a catalyst article

US11826739B2 · kind B2 · utility

Inventors

• Nikki Jane AMOS-REICHERT · Unterlangenstadt, DE
• Daniel AVIS · Royston, GB
• Juergen Bauer · Burgkunstadt, DE
• Yannick BIDAL · Royston, GB
• Guy Richard Chandler · Cambridge, GB
• Alexander Nicholas Michael Green · Royston, GB
• Neil GREENHAM · Royston, GB
• Matthew Eben HARRIS · Royston, GB
• Sofia LOPEZ-OROZCO · Unterlangenstadt, DE
• Joerg Werner Muench · Burgkunstadt, DE
• Paul Richard Phillips · Royston, GB
• Irene Piras · Unterlangenstadt, DE

Key dates

• Filing date: Apr 30, 2021
• Grant date: Nov 28, 2023
• Expiry date: Jul 3, 2041

Classification

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

Abstract

The present disclosure relates to a method for forming a catalyst article comprising: (a) forming a plastic mixture having a solids content of greater than 50% by weight by mixing together a crystalline small pore or medium pore molecular sieve in an H+ or NH4+ form, an insoluble active metal precursor, an inorganic matrix component, an organic auxiliary agent, an aqueous solvent and optionally inorganic fibres; (b) moulding the plastic mixture into a shaped article; and (c) calcining the shaped article to form a solid catalyst body. The present disclosure further relates to a catalyst article, particularly a catalyst article which is suitable for use in the selective catalytic reduction of nitrogen oxides, and to an exhaust system.