Patents Assigned to L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Expolitation des Procédés Georges Claude
  • Method and installation for producing, in gaseous form and under high pressure, at least one fluid chosen from oxygen, argon and nitrogen by cryogenic distillation of air
    Patent number: 7076971
    Abstract: A process and apparatus for highly efficient production of industrial gases by the cryogenic distillation of air, wherein a feed stream of compressed air, is supercharged to high pressure, cooled, and mixed with various recycle streams of supercharged air, to regulate the expander turbine operating temperature. The need for pre-cooling equipment downstream of the supercharger, which is widely employed in industry to manage the temperature of the incoming compressed air stream, is eliminated.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: July 18, 2006
    Assignee: L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Expolitation des Procédés Georges Claude
    Inventors: Lasad Jaouani, Bao Ha, Ovidiu Balog, Maurice Grenier, Xavier Pontone