Patents by Inventor Alessandra Rangel Cassella

Alessandra Rangel Cassella 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).

  • METHOD FOR DETERMINING THE COMPOSITION OF WATER IN LOW BSW OILS
    Publication number: 20230152295
    Abstract: The present invention addresses to a method for characterizing water produced in oil samples containing water with contents below 0.5%, by measuring the analytes of interest directly in the oil containing the emulsified water. For this, it is necessary to carry out filtrations to remove possible suspended solids, since they may interfere with the composition of the water. The method proposed in the present invention provides methodologies with and without interference in the equilibrium by washing the oil with distilled water, measuring the analytes of interest directly in the oil.
    Type: Application
    Filed: November 14, 2022
    Publication date: May 18, 2023
    Inventors: Iris Medeiros Junior, Ricardo Augusto Pereira De Avila, Rogerio Mesquita De Carvalho, Rainerio Escalfoni Junior, Ana Gabriela Apolonio De Souza, Oto Leonardo Reis Gomes, Roberta De Moraes Maciel, Alessandra Rangel Cassella, Elisangela Fragoso Reis Da Rocha, Maria Marta Moreira Crelier, Bruno Charles Do Couto, Thiago Andrade Delfino Da Silva
  • Method for pretreating lignocellulosic biomass
    Patent number: 11560579
    Abstract: The present invention describes a process for pretreatment of lignocellulosic biomass that comprises the step of contacting a lignocellulosic biomass with an ionic liquid consisting of a phthalic salt of dicholine in the weight ratio from 1:1 to 1:100 of biomass:ionic liquid, said step taking place for a period of time that varies from 0.4 to 48 hours and in a temperature range that varies from 60 to 200° C. Furthermore, the present invention also relates to the use of the pretreated lignocellulosic biomass in an enzymatic hydrolysis process.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: January 24, 2023
    Assignee: Petróleo Brasileiro S.A.—Petrobras
    Inventors: Aline Machado De Castro, Sonia Maria Cabral De Menezes, Luiz Silvino Chinelatto Junior, Alessandra Rangel Cassella, Bernardo Dias Ribeiro
  • METHOD FOR PRETREATING LIGNOCELLULOSIC BIOMASS
    Publication number: 20210388405
    Abstract: The present invention describes a process for pretreatment of lignocellulosic biomass that comprises the step of contacting a lignocellulosic biomass with an ionic liquid consisting of a phthalic salt of dicholine in the weight ratio from 1:1 to 1:100 of biomass:ionic liquid, said step taking place for a period of time that varies from 0.4 to 48 hours and in a temperature range that varies from 60 to 200° C. Furthermore, the present invention also relates to the use of the pretreated lignocellulosic biomass in an enzymatic hydrolysis process.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 16, 2021
    Inventors: Aline Machado De Castro, Sonia Maria Cabral De Menezes, Luiz Silvino Chinelatto Junior, Alessandra Rangel Cassella, Bernardo Dias Ribeiro