Patents by Inventor Lorena Alvárez Contreras

Lorena Alvárez Contreras 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).

  • Publication number: 20210170379
    Abstract: An ionic liquid as a solvent in the hydration reaction of ?-pinene to ?-terpineol. The ionic liquid is obtained from the reaction of an amine and an inorganic acid. The use of the ionic liquid as solvent favors the selectivity towards the formation of ?-terpineol and once the reaction product has been brought to room temperature, the organic phase can be physically separated from the inorganic one by decantation. The inorganic phase contains the ionic liquid, water and reaction catalyst and can be directly reused for a new reaction batch.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Applicant: Centro de Investigación en Materiales Avanzados, S.C.
    Inventors: Alfredo Aguilar Elguezabal, Manuel Roman Aguirre, Luis De la Torre Saenz, Lorena Alvarez Contreras
  • Publication number: 20150182952
    Abstract: The present invention shows a synthesis method for a highly dispersed supported catalyst over a KIT-6 type nanostructured mesoporous oxide with elements from Groups IIIA or IVA, or IVB. The method includes the synthesis of the support, the incorporation of CoMo and NiMo active phases through impregnation to pore volume, assisted by ultrasound, calcination at controlled conditions in order to obtain a phase of hydrated trioxide molybdenum or molybdic acid, which facilitates the subsequent sulfihydration and the mechanical mixing of a CoMoS/support with a hydrodenitrogenant NiMoS/support additive. The obtained catalysts exhibit a catalytic activity mainly in reactions of hydrotreatment, hydrodesulfurization, and hydrodenitrogenation.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 2, 2015
    Inventors: Lorena Alvarez Contreras, Alfredo Aguilar Elguezabal, Abril Ibarra Martinez
  • Patent number: 8987165
    Abstract: The present invention relates to a synthesis method for unsupported and supported ruthenium base (RuS2) catalysts from a ruthenium complex precursor, which is decomposed and activated by a simple activation process; these steps provide a catalyst with very high catalytic activity, in addition the incorporation of ruthenium complex precursor to a support by methods of incipient and wet impregnating is described; the obtained catalytic activities in this invention are in the order of 100 times the molybdenum sulfide catalyst without support and without promoter, 14 times the industrial supported catalyst, and 5 times the activity of the currently most active commercial unsupported catalyst.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: March 24, 2015
    Assignee: Centro de Investigacion en Materiales Avanzados, S.C.
    Inventors: Carlos Elias Ornelas Gutierrez, Lorena Alvarez Contreras, Jose Rurik Farias Mancilla, Alfredo Aguilar Elguezabal
  • Patent number: 8853119
    Abstract: The present invention relates to synthesis method of a family of ruthenium sulfide catalysts promoted with an added additional metal, unsupported (M/RuS2) and supported (M/RuS2/support). The obtained catalysts exhibit a high catalytic activity in hydrotreating or hydroprocessing (HDT) of hydrocarbons, mainly hydrodesulfuration, hydrodenitrogenation, and hydrodeoxigenation. The impact of the present invention for application in the commercial context, lies in the high catalytic activity of the obtained catalysts, which is far superior to the existing commercial catalysts, as well as the simplicity of the synthesis method, which will affect the quality of the products obtained in the oil industry, allowing to meet the environmental standards imposed by current legislations.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: October 7, 2014
    Assignee: Centro de Investigacion en Materiales Avanzados, S.C
    Inventors: Carlos Elias Ornelas Gutierrez, Lorena Alvarez Contreras, Jose Rurik Farias Mancilla, Alfredo Aguilar Elguezabal
  • Patent number: 8632704
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 21, 2014
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras De Léon, Lorena Alvárez Contreras
  • Patent number: 8628697
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 14, 2014
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras De Léon, Lorena Alvárez Contreras
  • Publication number: 20130161575
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Application
    Filed: February 25, 2013
    Publication date: June 27, 2013
    Applicants: SESAJAL, S. A. DE C. V., PROLEC-GE INTERNACIONAL, S. DE R. L. DE C. V.
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras De Léon, Lorena Alvarez Contreras
  • Publication number: 20130161576
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Application
    Filed: February 25, 2013
    Publication date: June 27, 2013
    Applicants: SESAJAL, S.A. DE C. V., PROLEC-GE INTERNATIONAL, S DE R. L. DE C. V.
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras De Léon, Lorena ALVÁREZ CONTRERAS
  • Publication number: 20130157842
    Abstract: The present invention relates to synthesis method of a family of ruthenium sulfide catalysts promoted with an added additional metal, unsupported (M/RuS2) and supported (M/RuS2/support). The obtained catalysts exhibit a high catalytic activity in hydrotreating or hydroprocessing (HDT) of hydrocarbons, mainly hydrodesulfuration, hydrodenitrogenation, and hydrodeoxigenation. The impact of the present invention for application in the commercial context, lies in the high catalytic activity of the obtained catalysts, which is far superior to the existing commercial catalysts, as well as the simplicity of the synthesis method, which will affect the quality of the products obtained in the oil industry, allowing to meet the environmental standards imposed by current legislations.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 20, 2013
    Inventors: Carlos Elias Ornelas Gutierrez, Lorena Alvarez Contreras, Jose Rurik Farias Mancilla, Alfredo Aguilar Elguezabal
  • Publication number: 20130153468
    Abstract: The present invention relates to a synthesis method for unsupported and supported ruthenium base (RuS2) catalysts from a ruthenium complex precursor, which is decomposed and activated by a simple activation process; these steps provide a catalyst with very high catalytic activity, in addition the incorporation of ruthenium complex precursor to a support by methods of incipient and wet impregnating is described; the obtained catalytic activities in this invention are in the order of 100 times the molybdenum sulfide catalyst without support and without promoter, 14 times the industrial supported catalyst, and 5 times the activity of the currently most active commercial unsupported catalyst.
    Type: Application
    Filed: April 11, 2012
    Publication date: June 20, 2013
    Inventors: Carlos Elias Ornelas Gutierrez, Lorena Alvarez Contreras, Jose Rurik Farias Mancilla, Alfredo Aguilar Elguezabal
  • Patent number: 8383020
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: February 26, 2013
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras De León, Lorena Alvárez Contreras
  • Patent number: 8293205
    Abstract: A method for obtaining a promoted molybdenum sulfide catalyst and a promoted molybdenum sulfide added with a nanometric additive. The obtained catalyst exhibits an improved catalytic activity in hydrotreatment reactions, such as hydrodesulfurization, hydrodenitrogenation, and hydrogenation. The invention presents as an advantage, in addition to a low cost composition by their transition metals content, the activation of thiosalts precursor using an environmentally friendly atmosphere.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 23, 2012
    Assignee: Centro de Investigacion en Materiales Avanzados, S.C.
    Inventors: Lorena Alvarez Contreras, Alfredo Aguilar Elguezabal, Irene Lujan Regalado, Abril Ibarra Martinez
  • Publication number: 20120142519
    Abstract: A method for obtaining a promoted molybdenum sulfide catalyst and a promoted molybdenum sulfide added with a nanometric additive. The obtained catalyst exhibits an improved catalytic activity in hydrotreatment reactions, such as hydrodesulfurization, hydrodenitrogenation, and hydrogenation. The invention presents as an advantage, in addition to a low cost composition by their transition metals content, the activation of thiosalts precursor using an environmentally friendly atmosphere.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 7, 2012
    Inventors: Lorena ALVAREZ CONTRERAS, Alfredo Aguilar Elguezabal, Irene Lujan Regalado, Abril Ibarra Martinez
  • Publication number: 20110291059
    Abstract: A dielectric fluid composition containing of 60% to 63% in weight of mono-unsaturated fatty acid, of 20% to 23% in weight of di-unsaturated fatty acid, of 5% to 7% in weight of tri-unsaturated fatty acid, and of 6% to 8% in weight of saturated fatty acid, such that the dielectric fluid is free of antioxidants and/or external additives and has the following properties: a dielectric strength of 40 kV to 70 kV at a separation of 2 mm, a dielectric constant of 2.5 to 3.1 at 25° C., and a dissipation factor of 0.05% to 0.15% at 25° C. The dielectric fluid composition can be obtained by a combination of 95.5% to 99.25% in weight of at least one high oleic vegetable oil, of 0.25% to 1.5% in weight of grape seed oil, of 0.25% to 1.5% in weight of sesame seed oil, and of 0.25% to 1.5% in weight of rice bran oil.
    Type: Application
    Filed: December 19, 2008
    Publication date: December 1, 2011
    Applicants: SESAJAL, S. A. DE C. V., PROLEC-GE INTERNACIONAL, S. DE R. L. DE C. V.
    Inventors: Javier Aranda Cotero, David Apolinar Guerra Zubiaga, José Eulalio Contreras de Leön, Lorena Alvárez Contreras