Lecture presented on April 28, 2003, at the Intl. Soc. for Applications of Supercritical Fluids Meeting in Versailles, France.
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The Principle of a New CAN-BD Process: (Carbon Dioxide Assisted Nebulization with a Bubble Dryer®)

  • In CAN-BD a solution or suspension in acetone,alcohol, or water is mixed intimately with CO2 at 100 bar to form an emulsion.
     
  • The emulsion is rapidly expanded to atmospheric pressure through flow restrictor to generate aerosols of microbubbles and microdroplets.
     
  • The aerosol plume is dried at 1 to 60 °C as it mixes with nitrogen or air in the drying chamber.
     
  • Dry fine powders are collected.
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