Patents by Inventor Fidencio HERNÁNDEZ PÉREZ
Fidencio HERNÁNDEZ PÉREZ 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).
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Patent number: 11896954Abstract: The present invention relates to a process for the manufacture of microporous carbon materials to perform selective separations of nitrogen in gas mixtures such as hydrogen sulfide, carbon dioxide, methane and C2, C3 and C4+ hydrocarbons, with high efficiency, shaped of microspheres or cylinders from copolymers of poly (vinylidene chloride-co-methyl acrylate) with density of 1.3 to 1.85 g/cm3 or poly (vinylidene chloride-co-vinyl chloride) with density of 1.3 to 1.85 g/cm3, using two stages. The first stage consists of a surface passivation of the material by chemical attack in a highly alkaline alcohol solution, with the aim of effecting a precarbonization on the surface of the copolymer that during the pyrolysis process is not deformed and gradually develops microporosity. The material of the first stage presents, in the layer, percentages between 55% to 85% carbon, between 5% to 20% oxygen, and between 10% to 40% chlorine.Type: GrantFiled: June 17, 2021Date of Patent: February 13, 2024Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Federico Jesus Jimenez Cruz, Jose Luis Garcia Gutierrez, Jose Francisco Gaspar Silva Sanchez, Liliana Alejandra Astudillo Lopez Lena, Fidencio Hernandez Perez, Alberto Cabrales Torres, Maria Del Carmen Martinez Guerrero, Marco Antonio Dominguez Aguilar, Arturo Trejo Rodriguez, Florentino Rafael Murrieta Guevara
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Publication number: 20210308652Abstract: The present invention relates to a process for the manufacture of microporous carbon materials to perform selective separations of nitrogen in gas mixtures such as hydrogen sulfide, carbon dioxide, methane and C2, C3 and C4+ hydrocarbons, with high efficiency, shaped of microspheres or cylinders from copolymers of poly (vinylidene chloride-co-methyl acrylate) with density of 1.3 to 1.85 g/cm3 or poly (vinylidene chloride-co-vinyl chloride) with density of 1.3 to 1.85 g/cm3, using two stages. The first stage consists of a surface passivation of the material by chemical attack in a highly alkaline alcohol solution, with the aim of effecting a precarbonization on the surface of the copolymer that during the pyrolysis process is not deformed and gradually develops microporosity. The material of the first stage presents, in the layer, percentages between 55% to 85% carbon, between 5% to 20% oxygen, and between 10% to 40% chlorine.Type: ApplicationFiled: June 17, 2021Publication date: October 7, 2021Inventors: FEDERICO JESUS JIMENEZ CRUZ, JOSE LUIS GARCIA GUTIERREZ, JOSE FRANCISCO GASPAR SILVA SANCHEZ, LILIANA ALEJANDRA ASTUDILLO LOPER LENA, FIDENCIO HERNANDEZ PEREZ, ALBERTO CABRALES TORRES, MARIA DEL CARMEN MARTINEZ GUERRERO, MARCO ANTONIO DOMINGUEZ AGUILAR, ARTURO TREJO RODRIGUEZ, FLORENTINO RAFAEL MURRIETA GUEVARA
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Patent number: 11059027Abstract: The present invention relates to a process for the manufacture of microporous carbon materials to perform selective separations of nitrogen in gas mixtures such as hydrogen sulfide, carbon dioxide, methane and C2, C3 and C4+ hydrocarbons, with high efficiency, shaped of microspheres or cylinders from copolymers of poly (vinylidene chloride-co-methyl acrylate) with density of 1.3 to 1.85 g/cm3 or poly (vinylidene chloride-co-vinyl chloride) with density of 1.3 to 1.85 g/cm3, using two stages. The first stage consists of a surface passivation of the material by chemical attack in a highly alkaline alcohol solution, with the aim of effecting a precarbonization on the surface of the copolymer that during the pyrolysis process is not deformed and gradually develops microporosity. The material of the first stage presents, in the layer, percentages between 55% to 85% carbon, between 5% to 20% oxygen, and between 10% to 40% chlorine.Type: GrantFiled: September 28, 2018Date of Patent: July 13, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Federico Jesus Jimenez Cruz, Jose Luis Garcia Gutierrez, Jose Francisco Gaspar Silva Sanchez, Liliana Alejandra Astudillo Lopez Lena, Fidencio Hernandez Perez, Alberto Cabrales Torres, Maria del Carmen Martinez Guerrero, Marco Antonio Dominguez Aguilar, Arturo Trejo Rodriguez, Florentino Rafael Murrieta Guevara
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Publication number: 20190099740Abstract: The present invention relates to a process for the manufacture of microporous carbon materials to perform selective separations of nitrogen in gas mixtures such as hydrogen sulfide, carbon dioxide, methane and C2, C3 and C4+ hydrocarbons, with high efficiency, shaped of microspheres or cylinders from copolymers of poly (vinylidene chloride-co-methyl acrylate) with density of 1.3 to 1.85 g/cm3 or poly (vinylidene chloride-co-vinyl chloride) with density of 1.3 to 1.85 g/cm3, using two stages. The first stage consists of a surface passivation of the material by chemical attack in a highly alkaline alcohol solution, with the aim of effecting a precarbonization on the surface of the copolymer that during the pyrolysis process is not deformed and gradually develops microporosity. The material of the first stage presents, in the layer, percentages between 55% to 85% carbon, between 5% to 20% oxygen, and between 10% to 40% chlorine.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Inventors: Federico Jesus JIMENEZ CRUZ, Jose Luis GARCIA GUTIERREZ, Jose Francisco Gaspar SILVA SANCHEZ, Liliana Alejandra ASTUDILLO LOPEZ LENA, Fidencio HERNANDEZ PEREZ, Alberto CABRALES TORRES, Maria del Carmen MARTINEZ GUERRERO, Marco Antonio DOMINGUEZ AGUILAR, Arturo TREJO RODRIGUEZ, Florentino Rafael MURRIETA GUEVARA
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Patent number: 10077334Abstract: The present invention is related to the application of solid polymers or copolymers prepared from monomers having in their structure a polycyclic aromatic ring, an aromatic ring of the type of naphthalene, or polyesters, polyethers, polyamides or polyvynil derivatives having naphthalene units in their structure, in the hydrotreatment or hydrocracking of heavy hydrocarbons, such as heavy or extra-heavy crude oils or residues from the distillation of petroleum; these polymers or copolymers may be supported, anchored or in a physical mixture with metallic oxides such as alumina, silica, titania or kaolin, and they have an application as heterogeneous hydrogen donors in reactions of hydrotreatment or hydrocracking of heavy or extra-heavy crude oils, residues from the distillation of petroleum and cuts and streams deived from this distillation. These solid polymers or copolymers operate in the presence of hydrogen or methane-rich gas.Type: GrantFiled: August 1, 2016Date of Patent: September 18, 2018Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Laura Olivia Alemán Vázquez, José Luis Cano Domínguez, Federico Jiménez Cruz, José Luis García Gutiérrez, Fidencio Hernández Pérez, María Teresa Mares Gallardo
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Publication number: 20170096525Abstract: The present invention is related to the application of solid polymers or copolymers prepared from monomers having in their structure a polycyclic aromatic ring, an aromatic ring of the type of naphthalene, or polyesters, polyethers, polyamides or polyvynil derivatives having naphthalene units in their structure, in the hydrotreatment or hydrocracking of heavy hydrocarbons, such as heavy or extra-heavy crude oils or residues from the distillation of petroleum; these polymers or copolymers may be supported, anchored or in a physical mixture with metallic oxides such as alumina, silica, titania or kaolin, and they have an application as heterogeneous hydrogen donors in reactions of hydrotreatment or hydrocracking of heavy or extra-heavy crude oils, residues from the distillation of petroleum and cuts and streams deived from this distillation. These solid polymers or copolymers operate in the presence of hydrogen or methane-rich gas.Type: ApplicationFiled: August 1, 2016Publication date: April 6, 2017Inventors: Laura Olivia ALEMÁN VÁZQUEZ, José Luis CANO DOMÍNGUEZ, Federico JIMÉNEZ CRUZ, José Luis GARCÍA GUTIÉRREZ, Fidencio HERNÁNDEZ PÉREZ, María Teresa MARES GALLARDO
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Patent number: 8354019Abstract: The present invention is related with the application of an adsorbent material of microporous carbon (MCA), prepared from the direct pyrolysis of copolymers generically known as Saran, in adsorption processes to reduce the benzene content in naphtha boiling range hydrocarbon streams, between 27 and 191° C., in which is preferable to perform a first separation by distillation of the C6's fraction, and a further separation of Benzene by adsorption through an adsorbent material bed, obtaining the fraction of C6's free of Benzene and an adsorbent with Benzene, which is further regenerated by pressure or temperature swing desorption or by displacement using a desorbent such as an inert gas at high temperature or by passing a desorbent which after the process, the desorbent and Benzene are separated by distillation. The fraction of C6's free of Benzene is reintegrated to the hydrocarbon stream and providing a gasoline with a Benzene content less than 1 volume %.Type: GrantFiled: November 23, 2007Date of Patent: January 15, 2013Assignee: Instituto Mexicano del PetroleoInventors: Georgina Cecilia Laredo Sanchez, J. Jesus Castillo Munguia, Fidencio Hernandez Perez, Ricardo Saint Martin Castanon, Maria del Carmen Martinez Guerrero, Federico Jesus Jimenez Cruz, Obet Marroquin de la Rosa, Jose Luis Cano Dominguez
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Publication number: 20100025303Abstract: The present invention is related with the application of an adsorbent material of microporous carbon (MCA), prepared from the direct pyrolysis of copolymers generically known as Saran, in adsorption processes to reduce the benzene content in naphtha boiling range hydrocarbon streams, between 27 and 191° C., in which is preferable to perform a first separation by distillation of the C6's fraction, and a further separation of Benzene by adsorption through an adsorbent material bed, obtaining the fraction of C6's free of Benzene and an adsorbent with Benzene, which is further regenerated by pressure or temperature swing desorption or by displacement using a desorbent such as an inert gas at high temperature or by passing a desorbent which after the process, the desorbent and Benzene are separated by distillation. The fraction of C6's free of Benzene is reintegrated to the hydrocarbon stream and providing a gasoline with a Benzene content less than 1 volume %.Type: ApplicationFiled: November 23, 2007Publication date: February 4, 2010Applicant: INSTITUTO MEXICANO DEL PETROLEOInventors: Georgina Cecilia Laredo Sanchez, J. Jesus Castillo Munguia, Fidencio Hernandez Perez, Ricardo Saint Martin Castanon, Maria del Carmen Martinez Guerrero, Federico Jesus Jimenez Cruz, Obet Marroquin De La Rosa, Jose Luis Cano Dominguez