Porous inorganic composite oxide

US9592498B2 · kind B2 · utility

Assignee

• RHODIA OPERATIONS · FR

Inventors

• Olivier Larcher · Collangettes, FR
• Francis Francis · Columbia, US
• Thomas English · Panama City, US
• Simon Ifrah · Lagord, FR
• Andrew Polli · Washington Crossing, US

Key dates

• Filing date: Nov 16, 2011
• Grant date: Mar 14, 2017
• Expiry date: Jan 22, 2034

Classification

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

Abstract

A porous inorganic composite oxide containing oxides of aluminum and of cerium and/or zirconium, and, optionally, oxides of one or more dopants selected from transition metals, rare earths, and mixtures thereof, and having a specific surface area, in m2/g, after calcining at 1100° C. for 5 hours, of ≧0.8235[Al]+11.157 and a total pore volume, in cm3/g, after calcining at 900° C. for 2 hours, of ≧0.0097[Al]+0.0647, wherein [Al] is the amount of oxides of aluminum, expressed as pbw Al2O3 per 100 pbw of the composite oxide; a catalyst containing one or more noble metals dispersed on the porous inorganic composite oxide; and a method for making the porous inorganic composite oxide.