Process for producing carbon membranes

US8608828B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Hartwig Voss · Bischofswerda, DE
• Joerg Therre · Worms, DE
• Nadine Kaltenborn · Alsdorf, DE
• Hannes Richter · Hermsdorf, DE
• Ingolf Voigt · Jena, DE

Key dates

• Filing date: Sep 30, 2011
• Grant date: Dec 17, 2013
• Expiry date: Jan 11, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The use of solutions of organic polymers for production of carbon membranes suitable for gas separation, and a process for producing carbon membranes suitable for gas separation, comprising the steps of a) coating a porous substrate with solutions of organic polymers, b) drying the polyester coating on the porous substrate by removing the solvent, and c) pyrolyzing the polyester coating on the porous substrate to form the carbon membrane suitable for gas separation, it being possible to conduct any of steps a) to c) or the sequence of steps a) to c) more than once.