Patents by Inventor Eugene G. Wollaston

Eugene G. Wollaston 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).

  • Catalytic cracking with reduced emission of noxious gas
    Patent number: 4440632
    Abstract: Emissions of sulfur oxides from the regenerator of a fluidized catalytic cracking unit are reduced by selectively removing a portion of the sulfur from sulfur-containing coke deposits on deactivated cracking catalyst. This is accomplished by reaction of these deposits with limited amounts of molecular oxygen in a stripping zone at a temperature in the range from about 550.degree. to about 700.degree. C. Effluent gas from the striping zone is combined with the cracked hydrocarbon products.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: April 3, 1984
    Assignee: Standard Oil Company (Indiana)
    Inventors: Iacovos A. Vasalos, Eugene G. Wollaston