Patents by Inventor Thomas Frederick Shevels

Thomas Frederick Shevels 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).

  • Patent number: 4021370
    Abstract: A process is described for the production of methane from methanol by catalytic dehydration and dehydrogenation providing a high initial methane yield and a final substitute natural gas product of high calorific value. The catalytic dehydration and dehydrogenation steps may be effected simultaneously or in sequence. High efficiency in usage of raw materials and thermal requirements of the process are secured. A preferred catalyst containing both dehydration and dehydrogenation functions consists essentially of a major amount of iron oxide and minor amounts of chromium oxide and phosphate or tungstate ions.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: May 3, 1977
    Assignee: Davy Powergas Limited
    Inventors: Norman Harris, Thomas Frederick Shevels, Alan James Dennis