Patents by Inventor Oliver Zandona

Oliver Zandona 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).

  • Combination process for upgrading residual oils
    Patent number: 4894141
    Abstract: A process for upgrading topped crude oils and residual portions comprising material boiling above 552.degree. C. (1025.degree. F.) by the combination of partial demetallizing and decarbonizing of the residual oil before effecting zeolite catalytic cracking thereof is described in conjunction with a product separation process, a combined hydrocarbon gas product concentration section and the use of parallel arranged CO boilers to produce sulfur free flue gas and steam. Steam generated by the combination operation effectively reduces the energy requirement of the combustion process.
    Type: Grant
    Filed: January 3, 1984
    Date of Patent: January 16, 1990
    Assignee: Ashland Oil, Inc.
    Inventors: Lloyd E. Busch, Paul W. Walters, Oliver Zandona