Patents by Inventor Bruno Fragelli

Bruno Fragelli 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).

  • Process for producing lube base oils of high viscosity index and diesel oil of high cetaned number
    Patent number: 6103101
    Abstract: A process is described for the hydroisomerization/hydrocracking of paraffinic streams to yield lube oils of viscosity index of at least 105 and pour point -6.degree. C. or less, whereby a paraffinic feed which is enriched in iso-paraffins is submitted to hydrogenation in a bed made up of HDM, HDT, HDI/HCC and HDF catalysts, the product oil is separated by distilling the light fractions eventually present and dewaxed to remove the non-reacted high melting point paraffins. Equally considered is a variation in the process whereby diesel oil of high cetane number is produced by recirculating the 370.degree. C.+ cut to the process feed.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 15, 2000
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Bruno Fragelli, Guilherme Luis Monteiro De Souza