Patents by Inventor Horst Joachim Franz August Hesse

Horst Joachim Franz August Hesse has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for the removal of carbon dioxide from a process gas
    Patent number: 6312655
    Abstract: The invention relates to the absorption of carbon dioxide from a process gas using a solution of potassium carbonate, potassium bicarbonate, diethanolamine and potassium vanadate, followed by desorption of the carbon dioxide from the solution and recycling the regenerated solution. Organic acid salts of potassium build up in the aqueous solution is diluted with aqueous diluent, and then passed over a semi-permeable membrane such as a nanofiltration membrane, and ultrafiltration membrane or a reverse-osmosis membrane using a pressure drop to remove the organic acid salts of potassium from the side stream.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: November 6, 2001
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Horst Joachim Franz August Hesse, Mathys Johannes Smit, Francois Jacobus du Toit