Patents by Inventor David J. Cones

David J. Cones 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).

  • Recovery of propane from HF alkylation vent gas
    Patent number: 4348544
    Abstract: Vent gases containing propane and HF obtained from a hydrocarbon alkylation operation are treated together with an alkylate either before or after it has been debutanized thus to remove HF from said vent gases and/or the vent gases are combined with a normal butane stream before it is treated to remove HF therefrom thus to remove HF from said vent gases. In any event described, the propane in the vent gases is advantageously recovered in the normal butane containing stream.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: September 7, 1982
    Assignee: Phillips Petroleum Company
    Inventors: Edgar D. Davis, David J. Cones