Patents by Inventor Henry G. McMath, Jr.

Henry G. McMath, Jr. 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).

  • Retorting with sintered or fused solids
    Patent number: 4648965
    Abstract: An improved process for retorting a solid carbonaceous material at elevated temperatures wherein a portion of the spent solids withdrawn from the retort is heated to a temperature within the range from about 1600.degree. F. to about 2400.degree. F. and then recycled to the retort as a source of heat at a temperature within the range from about 650.degree. F. to about 1600.degree. F. When the improved process of this invention is operated in this manner, the amount of liquid product obtained is maximized and the amount of gaseous product minimized. Moreover, the integrity of the particles thus recycled is improved and the amount of fines in the liquid product correspondingly reduced.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: March 10, 1987
    Assignee: Exxon Research and Engineering Company
    Inventor: Henry G. McMath, Jr.