Patents by Inventor Douglas H. May, Jr.

Douglas H. May, 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).

  • Fluidized catalytic cracking regeneration process
    Patent number: 4056486
    Abstract: A process is described herein for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon monoxide formed to carbon dioxide. A method is provided for supplying additional oxygen to a dilute phase above the dense phase bed for combustion of carbon monoxide. Additionally, a method is provided for transferring heat from the dilute phase back to the bottom of the fluidized dense phase bed.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: November 1, 1977
    Assignee: Texaco Inc.
    Inventors: Dorrance P. Bunn, Jr., John C. Strickland, Douglas H. May, Jr.
  • Fluidized cracking catalyst regeneration apparatus
    Patent number: 4038038
    Abstract: Apparatus for regeneration of spent, coke contaminated fluidized cracking catalyst by burning coke therefrom with a molecular oxygen containing regeneration gas in a fluidized dense phase bed, and for burning substantially all carbon monoxide to carbon dioxide. Means are provided for transferring heat from the top to the bottom of the regeneration apparatus, employing catalyst as the transfer medium. Also, conical standpipe means is provided for deaerating regenerated catalyst.
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: July 26, 1977
    Assignee: Texaco Inc.
    Inventors: Dorrance P. Bunn, Jr., John C. Strickland, John P. MacLean, Douglas H. May, Jr.