Method for regulated injection of liquid carbon dioxide in a pressured liquid

US6533252B1 · kind B1 · 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

• Frederic Bernard · Gardanne, FR
• Dominique Bras · Massy, FR
• Jose Buil · Fresnes, FR

Key dates

• Filing date: Sep 10, 2001
• Grant date: Mar 18, 2003
• Expiry date: Sep 10, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S261/07
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Method and its associated device for the regulated injection of liquid carbon dioxide (CO2L) into a liquid (L) under pressure inside a chamber. The liquid carbon dioxide (CO2L) is, according to this method, injected at a fixed flow rate, in stepped mode, under the protection of a stream of gas (when injection is stopped).