Patents by Inventor Oswaldo de Aquino Pereira Junior

Oswaldo de Aquino Pereira Junior 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 treating effluents from the oil industry for discharge or reutilization
    Patent number: 8052876
    Abstract: A process is described for treating effluents from oil production units for discharge or reutilization, to remove oil and other soluble toxic contaminants such as sulphides, benzenes, toluenes, xylenes and polyaromatic hydrocarbons, before discharging or reusing this effluent, especially in an offshore environment. This process for effluent treatment includes a step of changing the thermodynamic equilibrium conditions of an oil-in-water emulsion, followed by a step of separating the oil and the water, to be carried out in an offshore oil production unit.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 8, 2011
    Assignee: Petroleo Brasileiro S.A.—Petrobras
    Inventors: Oswaldo de Aquino Pereira Junior, Marcel Vasconcelos Melo, Agenor Jacinto Junior
  • PROCESS FOR TREATING EFFLUENTS FROM THE OIL INDUSTRY FOR DISCHARGE OR REUTILIZATION
    Publication number: 20090134093
    Abstract: A process is described for treating effluents from oil production units for discharge or reutilization, to remove oil and other soluble toxic contaminants such as sulphides, benzenes, toluenes, xylenes and polyaromatic hydrocarbons, before discharging or reusing this effluent, especially in an offshore environment. This process for effluent treatment includes a step of changing the thermodynamic equilibrium conditions of an oil-in-water emulsion, followed by a step of separating the oil and the water, to be carried out in an offshore oil production unit.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 28, 2009
    Applicant: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Oswaldo de Aquino Pereira Junior, Marcel Vasconcelos Melo, Agenor Jacinto Junior