Patents by Inventor Roberto L. Lorenzo

Roberto L. Lorenzo 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).

  • Patent number: 5089114
    Abstract: A method for processing heavy crude oils comprising a) atmospheric distillation of a heavy crude oil having a high content of metals, asphaltenes and sulfur; b) solvent extraction of the atmospheric distillation residue to obtain an extract with characteristics equivalent to those which an atmospheric residue derived from light crude oil and a raffinate fraction, solid at ambient conditions, in which are concentrated the asphaltenes, metals and sulfur present in the original crude oil; c) vacuum distillation of the deasphalted extract, obtaining a light fraction or gas oils with characteristics adequate to be subjected to a secondary conversion process, plus a bottoms fraction or vacuum residue; d) treatment of the vacuum gas oils in a conversion stage and e) subjecting the bottoms of raffinate from the extraction stage to a metallurgical process, in admixture with cokeable coal and coke fines to production of metallurgical coke.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: February 18, 1992
    Assignee: Instituto Mexicano Del Petroleo
    Inventors: Abel M. Tovar, Oscar H. B. Mendizabal, Leonardo M. Olmos, Carlos G. A. Sanchez, Roberto L. Lorenzo, Roldofo C. Barba, Rene H. Perez