Air cleaning apparatus and method for cleaning air

US7147692B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Daniele Fornai · Granaglione, IT
• Stylianos Kouvroukoglou · Kraainem, BE
• Patrizio Ricci · Wemmel, BE
• Renzo Rizzo · Cincinnati, US
• Sergio Rossi · Taufkirchen, DE
• Andrea Argentieri · Brussels, BE
• Stefano Scialla · Roma, IT

Key dates

• Filing date: Dec 14, 2004
• Grant date: Dec 12, 2006
• Expiry date: Dec 14, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/903
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The method involves contacting the air with an aqueous or non-aqueous liquid in a stand-alone system. The air may be brought into contact with the liquid using a number of different types of apparatus, including a packed column scrubber. The liquid may be non-evaporative.