Patents by Inventor Ricardo Andre GUARNIERI

Ricardo Andre GUARNIERI 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 treatment of water/oil emulsions
    Patent number: 8747674
    Abstract: A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 ?L/g to 100 ?L/g. The ionic liquid used is a salt of a general C+ A? formula in a liquid state at temperatures below 150° C., where A? is an anion and C+ is a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general C+ A? formula present synergic behavior in separation efficiency in relation to conventional heating.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 10, 2014
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Regina Celia Lourenco Guimarães, Bianca Machado da Silva Ferreira, Maria de Fatima Pereira dos Santos, Ricardo Andre Guarnieri, Montserrat Fortuny Heredia, Cláudio Dariva, Alexandre Ferreira Santos, Rita de Cássia Bomfim Lemos, Lisiane dos Santos Freitas
  • PROCESS FOR TREATMENT OF WATER/OIL EMULSIONS
    Publication number: 20110186515
    Abstract: A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 ?L/g to 100 ?L/g. The ionic liquid used is a salt of a general C+ A? formula in a liquid state at temperatures below 150° C., where A? is an anion and C+ is a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general C+ A? formula present synergic behavior in separation efficiency in relation to conventional heating.
    Type: Application
    Filed: December 28, 2010
    Publication date: August 4, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Regina Celia Lourenco GUIMARÂES, Bianca Machado da Silva FERREIRA, Maria de Fatima Pereira DOS SANTOS, Ricardo Andre GUARNIERI, Montserrat Fortuny HEREDIA, Cláudio DARIVA, Alexandre Ferreira SANTOS, Rita de Cássia Bomfim LEMOS, Lisiane dos Santos FREITAS