Patents Assigned to Cagniard de la Tour AS
  • Process for simultaneous extraction of dispersed and dissolved hydrocarbon contaminants from water
    Patent number: 6077433
    Abstract: A new process for simultaneous extraction of dispersed and dissolved hydrocarbon contaminants from water. The process is based on the principle of injecting natural hydrocarbon gas to the water feed stream under pressure and temperature conditions which permit the gas to act as a solvent for dissolved and dispersed hydrocarbon contaminants. The dispersed particles "swell" and have a reduced density which markedly improves the efficiency of the downstream separation by liquid--liquid-hydrocyclones.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: June 20, 2000
    Assignee: Cagniard de la Tour AS
    Inventors: Inge Brun Henriksen, Gary William Pace