Patents by Inventor Gisela Mariana Arzac De Calvo

Gisela Mariana Arzac De Calvo 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).

  • Patent number: 8663857
    Abstract: The present invention relates to a process for producing a continuous flow of hydrogen by catalyzed hydrolysis of a complex hydride, which comprises at least adding continuously and at constant rate a fuel solution to a reactor comprising a complex hydride stabilized on a hydroxide on a cobalt boride catalyst that is added in excess inside said reactor. Sodium borohydride is preferably used, the hydroxide is sodium hydroxide and the catalyst is supported on nickel foam. Parameters and optimal conditions to achieve continuous production of hydrogen have been determined, which is essential in the operation of fuel cells. A facility comprising a semi continuous reactor designed to perform the above process, which needs no refrigeration is also an object of the present invention, as well as a washing and reactivation process of a catalyst of the type used in the process mentioned above.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: March 4, 2014
    Assignee: Abengoa Hidrogeno, S.A.
    Inventors: María de los Ángeles Jiménez Domínguez, María del Mar Jiménez Vega, Belén Sarmiento Marrón, Asunción Fernández Camacho, Gisela Mariana Arzac De Calvo, Enrique Jiménez Roca
  • Publication number: 20120156576
    Abstract: The present invention relates to a process for producing a continuous flow of hydrogen by catalyzed hydrolysis of a complex hydride, which comprises at least adding continuously and at constant rate a fuel solution to a reactor comprising a complex hydride stabilized on a hydroxide on a cobalt boride catalyst that is added in excess inside said reactor. Sodium borohydride is preferably used, the hydroxide is sodium hydroxide and the catalyst is supported on nickel foam. Parameters and optimal conditions to achieve continuous production of hydrogen have been determined, which is essential in the operation of fuel cells. A facility comprising a semi continuous reactor designed to perform the above process, which needs no refrigeration is also an object of the present invention, as well as a washing and reactivation process of a catalyst of the type used in the process mentioned above.
    Type: Application
    Filed: October 7, 2011
    Publication date: June 21, 2012
    Inventors: María de los Ángeles JIMÉNEZ DOMÍNGUEZ, María del Mar Jiménez Vega, Belén Sarmiento Marrón, Asunción Fernández Camacho, Gisela Mariana Arzac De Calvo, Enrique Jiménez Roca