Process and plant for producing a variable gas output

US6273936A · kind A · utility

Assignee

• L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude · FR

Inventors

• Lionel Barry · Charenton-le-Pont, FR
• Xavier Vigor · Viroflay, FR

Key dates

• Filing date: Oct 8, 1999
• Grant date: Aug 14, 2001
• Expiry date: Oct 8, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25J2250/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In this process, the apparatus for separating the feed gas is connected to the delivery side of at least one variable-rotation-speed compressor, whose speed is controlled on the basis of the measurement of a parameter representative of the flow of gas product. The process is useful in the production of nitrogen from atmospheric air.