Patents by Inventor Ah-Hyung Park

Ah-Hyung Park 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).

  • Carbon dioxide sequestration using alkaline earth metal-bearing minerals
    Patent number: 7722842
    Abstract: A method for mineral sequestration of pollutant gases resulting from the combustion of carbon-based fuels such as carbon and sulfur dioxides is provided and includes, providing a particulate magnesium-containing mineral and exposing the magnesium-containing mineral to a weak acid to dissolve magnesium from the mineral and form a magnesium-containing solution. The surface of the particulate magnesium-containing mineral is physically activated to expose and dissolve additional magnesium into the solution. Pollutant gases such as carbon dioxide are mixed with the magnesium-containing solution. When the pH of the magnesium-containing solution is increased, solid magnesium carbonate is formed.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: May 25, 2010
    Assignee: The Ohio State University
    Inventors: Ah-Hyung Park, Liang-Shih Fan
  • Carbon dioxide sequestration using alkaline earth metal-bearing minerals
    Publication number: 20050180910
    Abstract: A method for mineral sequestration of pollutant gases resulting from the combustion of carbon-based fuels such as carbon and sulfur dioxides is provided and includes, providing a particulate magnesium-containing mineral and exposing the magnesium-containing mineral to a weak acid to dissolve magnesium from the mineral and form a magnesium-containing solution. The surface of the particulate magnesium-containing mineral is physically activated to expose and dissolve additional magnesium into the solution. Pollutant gases such as carbon dioxide are mixed with the magnesium-containing solution. When the pH of the magnesium-containing solution is increased, solid magnesium carbonate is formed.
    Type: Application
    Filed: December 30, 2004
    Publication date: August 18, 2005
    Inventors: Ah-Hyung Park, Liang-Shih Fan