Patents by Inventor Kenneth E. Tempelmeyer

Kenneth E. Tempelmeyer 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).

  • Process for removing organic sulphur from coal and material resulting from the process
    Patent number: 4441886
    Abstract: The present invention relates to a process for removing organic sulphur from coal and the material resulting from the treatment of organic sulphur containing coal with the instant process. The subject process includes the step of mixing coal with ethyl alcohol having less than 4% water. The temperature and pressure of the coal and ethyl alcohol mixture is raised to above the critical temperature and pressure of ethyl alcohol. The coal ethyl alcohol mixture is held at moderate temperature and elevated pressure for a period of about 30 minutes or more. The liquid and solids are separated. The resulting coal solids have substantially less organic sulphur contained therein.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: April 10, 1984
    Assignee: Southern Illinois University Foundation
    Inventors: Charles B. Muchmore, Juh W. Chen, Kenneth E. Tempelmeyer