Oxide ion conductive ceramic membrane stacked microstructures; use for separating oxygen from air

US7300561B2 · kind B2 · utility

Assignee

• L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges Claude · FR

Inventors

• Christophe Chaput · Puy Neige, FR
• Thierry Terracol · Limoges, FR
• Gisèle Bach · Limoges, FR
• Guylaine Gouriou · Guyancourt, FR
• Pascal Del Gallo · Étampes, FR

Key dates

• Filing date: Dec 18, 2001
• Grant date: Nov 27, 2007
• Expiry date: Dec 9, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention concerns an oxide ion conductive ceramic membrane, characterized in that it comprises a non-null finite volume with non-null total thickness E, comprising a dense layer (CD) of a solid electrolyte, a so-called bonding layer (CA), of two porous electrodes (EP) and (EP′), two porous current collectors (CC) and (CC′), and at least at least a coating porous layer (ER), characterized in that the thickness E of the volume of said membrane, is equal to the sum of the thickness of each of said elements. The membrane is used for separating oxygen from air or from a gas mixture containing same.