Patents by Inventor Yordanka Reyes Cruz

Yordanka Reyes Cruz 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).

  • Hydroesterification process for producing biodiesel from wet microalgae biomass
    Patent number: 9434899
    Abstract: The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (B) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (MU) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis. The wet microalgae biomass (MU) is the result of a process of cultivation concentration and is hydrolyzed directly in a hydrolysis column (20). Fatty acids (C), water (A) and raw glycerin (G) are obtained following the hydrolysis. The fatty acids (C) are esterified by reactive distillation in the presence of an impregnated heterogeneous catalyst (I).
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: September 6, 2016
    Assignees: PETROLEO BRASILEIRO S.A—PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ
    Inventors: Donato Alexandre Gomes Aranda, Yordanka Reyes Cruz, Gisel Chenard Dias, Leonardo Brantes Bacellar Mendes, Rafael Richard Joao
  • HYDROESTERIFICATION PROCESS FOR PRODUCING BIODIESEL FROM WET MICROALGAE BIOMASS
    Publication number: 20150240173
    Abstract: The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (B) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (MU) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis. The wet microalgae biomass (MU) is the result of a process of cultivation concentration and is hydrolyzed directly in a hydrolysis column (20). Fatty acids (C), water (A) and raw glycerin (G) are obtained following the hydrolysis. The fatty acids (C) are esterified by reactive distillation in the presence of an impregnated heterogeneous catalyst (I).
    Type: Application
    Filed: November 28, 2012
    Publication date: August 27, 2015
    Applicants: UNIVERSIDADE FEDERAL DO RIO DE JANEIRO -UFRJ, PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Donato Alexandre Gomes Aranda, Yordanka Reyes Cruz, Gisel Chenard Dias, Leonardo Brantes Bacellar Mendes, Rafael Richard Joao