Patents by Inventor Raul de Carvalho Silva

Raul de Carvalho Silva 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 process for production of diesel from seeds of oleaginous plants
    Patent number: 8231777
    Abstract: The present invention comprises a thermocatalytic cracking process for the production of diesel oil from a charge of vegetable origin made from seeds of oleaginous plants in refineries possessing at least two FCC reactors. At least one of such reactors processes heavy gas oil or residue under conventional conditions while at least one of such reactors processes the charge of vegetable origin made from seeds of oleaginous plants under conditions suitable, for production of diesel oil. Said process employs the same catalyst utilized in the fluid catalytic cracking process which, simultaneously, processes a conventional charge. The diesel, or biodiesel, oil produced by means of said process is of superior quality having a cetane number exceeding 40 given that the cracking reactions occur at low temperatures and the products obtained are less oxidized and consequently purer than products obtained by means of existing technology.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: July 31, 2012
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Mauro Silva, Andrea de Rezende Pinho, Wilson Kenzo Huziwara, Amilcar Pereira da Silva Neto, Carlos Nagib Khalil, Julio Amilcar Ramos Cabral, Lúcia Cristina Ferreira Leite, Luiz Carlos Casavechia, Raul de Carvalho Silva
  • Catalytic cracking process for production of diesel from seeds of oleaginous plants
    Publication number: 20080313955
    Abstract: The present invention comprises a thermocatalytic cracking process for the production of diesel oil from a charge of vegetable origin made from seeds of oleaginous plants in refineries possessing at least two FCC reactors. At least -one of such reactors processes heavy gas oil or residue under conventional conditions whilst at least one of such reactors processes the charge of vegetable origin made from seeds of oleaginous plants under conditions suitable, for production of diesel oil. Said process employs the same catalyst utilised in the fluid catalytic cracking process which, simultaneously, processes a conventional charge. The diesel, or biodiesel, oil produced by means of said process is of superior quality having a cetane number exceeding 40 given that the cracking reactions occur at low temperatures and the products obtained are less oxidised and consequently purer than products obtained by means of existing technology.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 25, 2008
    Applicant: PETROLEO BRASILEIRO S.A. -PETROBRAS
    Inventors: Mauro Silva, Andrea de Rezende Pinho, Wilson Kenzo Huziwara, Amilcar Pereira Da Silva Neto, Carlos Nagib Khalil, Julio Amilcar Ramos Cabral, Lucia Cristina Ferreira Leite, Luiz Carlos Casavechia, Raul de Carvalho Silva