Patents by Inventor Cláudia Maria de L. Alvarenga Baptista

Cláudia Maria de L. Alvarenga Baptista 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 fluid catalytic cracking of hydrocarbon feedstocks with high levels of basic nitrogen
    Patent number: 7744745
    Abstract: A process is described for fluid catalytic cracking of hydrocarbons with high levels of basic nitrogen, where hydrocarbon feedstocks A and B with different levels of basic nitrogen are injected in a segregated fashion, into different risers of a multiple riser FCCU that possesses at least two risers. The injection of the feedstocks is made in such a way that feedstock A, to be injected in the riser with greater volume—main riser 7—possessing a level of basic nitrogen at least 200 ppm lower than the level of feedstock B to be injected into the riser with lower volume—secondary riser (8).
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: June 29, 2010
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Claudia Maria de L. Alvarenga Baptista, Elizabeth M. Moreira, Henrique Soares Cerqueira
  • Process for reducing the naphthenic acidity of petroleum oils
    Patent number: 7504023
    Abstract: A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 17, 2009
    Assignee: Petroleo Brasileiro S.A.
    Inventors: Oscar René Chamberlain Pravia, Henrique Soares Cerqueira, Elizabeth M. Moreira, Cláudia Maria de L. Alvarenga Baptista, Jefferson Roberto Gomes, Paulo César Peixoto Bugueta
  • Process for fluid catalytic cracking of hydrocarbon feedstocks with high levels of basic nitrogen
    Publication number: 20040251166
    Abstract: A process is described for fluid catalytic cracking of hydrocarbons with high levels of basic nitrogen, where hydrocarbon feedstocks A and B with different levels of basic nitrogen are injected in a segregated fashion, into different risers of a multiple riser FCCU that possesses at least two risers. The injection of the feedstocks is made in such a way that feedstock A, to be injected in the riser with greater volume—main riser 7—possessing a level of basic nitrogen at least 200 ppm lower than the level of feedstock B to be injected into the riser with lower volume—secondary riser (8).
    Type: Application
    Filed: October 22, 2003
    Publication date: December 16, 2004
    Applicant: Petroleo Brasileiro S.A. - PETROBRAS
    Inventors: Claudia Maria de L. Alvarenga Baptista, Elizabeth M. Moreira, Henriques Soares Cerqueira
  • Process for reducing the naphthenic acidity of petroleum oils
    Publication number: 20040026299
    Abstract: A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.
    Type: Application
    Filed: July 2, 2003
    Publication date: February 12, 2004
    Inventors: Oscar Rene Chamberlain Pravia, Henrique Soares Cerqueira, Elizabeth M. Moreira, Claudia Maria de L. Alvarenga Baptista, Jefferson Roberto Gomes, Paulo Cesar Peixoto Bugueta