Devices, systems and methods for reducing the concentration of a chemical entity in fluids

US7763097B2 · kind B2 · utility

Assignee

• University of Pittsburgh—Of the Commonwealth System of Higher Education · US

Inventors

• William J. Federspiel · Pittsburgh, US
• Alan J. Russell · Boulder, US
• Heung-Il Oh · Bedford, US
• Joel L. Kaar · Via Enrico Fermi, US

Key dates

• Filing date: Jun 8, 2007
• Grant date: Jul 27, 2010
• Expiry date: Oct 31, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device for removal of at least a portion of carbon dioxide from an aqueous fluid includes at least one membrane through which carbon dioxide can pass to be removed from the fluid and immobilized carbonic anhydrase on or in the vicinity of a first surface of the membrane to be contacted with the fluid such that the immobilized carbonic anhydrase comes into contact with the fluid. The first surface exhibits carbonic anhydrase activity of at least 20% of maximum theoretical activity of the first surface of the membrane based on monolayer surface coverage of carbonic anhydrase in the case that the carbonic anhydrase is immobilize on the first surface.