Patents by Inventor Joao Eduardo Cerutti Karam

Joao Eduardo Cerutti Karam 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).

  • Multifunctional additive for maximizing properties relevant to the process of fluid catalytic cracking and the process for preparation thereof
    Patent number: 7622413
    Abstract: A multifunctional additive for maximizing yield of light olefins and LPG, with a tolerance to contaminant metals. Maximization of the referenced properties is accomplished through the use of a zeolite treated with a phosphorus source, calcined and impregnated with a rare earth salt. The process for preparation of the referenced catalyst includes the following steps: preparation of a precursor containing a zeolite that is selective of olefins with a source of phosphorus; placement of a source of phosphorus in this precursor through calcination; deposition of rare earth salts on the surface of the additive for maximizing the yield of light olefins and LPG that forms; and drying the multifunctional additive formed.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: November 24, 2009
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Lam Yiu Lau, Eliane Bernad Castro Mattos, Joao Eduardo Cerutti Karam, Ricardo Drolhe Montaury Pimenta, Rodolfo Eugênio Roncolatto