Patents Assigned to Instituto Mexicano del Petroleo
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Patent number: 11962044Abstract: The present invention offers some general specifications for the design, assembly, and adaptation of a rotating cylinder electrochemical cell into an autoclave, of a high temperature and pressure system for corrosion studies that simulate operating conditions in pipelines, as well as the operation and safety of an autoclave to evaluate the electrochemical process of metal surfaces exposed to aggressive aqueous solutions. The electrochemical cell consists of an array of three electrodes that include a rotating cylinder electrode designed to operate hermetically, a reference electrode and an auxiliary electrode. The rotating cylinder electrode is considered to be the working electrode, where the oxidation and electrochemical reduction processes are studied. However, the use of the method described in this work can be extended to other testing environments and materials by taking into account the physical and chemical properties of the fluids and materials to be used in order to avoid any risk for the operator.Type: GrantFiled: November 30, 2020Date of Patent: April 16, 2024Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Eliceo Sosa Hernandez, Marco Antonio Dominguez Aguilar, Hongbo Liu, Jorge Luis Alamilla Lopez, Jorge Flores Castillo, Marco Antonio Hernandez Rojo, Ivan Velazquez Ovando, Cesar Mendez Romero, Luis Manuel Quej Ake
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Patent number: 11920092Abstract: The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}?0.009 kgL·L?1·min?1), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.Type: GrantFiled: May 17, 2023Date of Patent: March 5, 2024Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Cesar Andres Flores Sandoval, Flavio Salvador Vazquez Moreno, Fernando Alvarez Ramirez, Gerardo Zavala Olivares, Erika Gomez Buendia, Enrique Cevada Maya, Jessica Valeria Fuentes Santiago, Edgar Benedicto Zamora Guerrero, Citlally Janinne Vargas Martinez
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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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Patent number: 11885220Abstract: An object of the disclosure is to determine the remaining saturation of existing fluids in naturally fractured and/or homogeneous reservoirs, considering an unconventional tracer test, using the double tracer test method with pressure monitoring (PDTcMP®), which also integrates unused technical elements, in order to estimate more accurately the value of the remaining oil saturation (ROS) in naturally fractured reservoirs, unlike conventional methods used most commonly in homogeneous media. The disclosure substantially modifies the conventional tracer test, as it uses innovative technical elements, which reduce the uncertainty and/or ambiguity associated with conventional tracer tests, when they are applied in naturally fractured reservoirs.Type: GrantFiled: May 16, 2023Date of Patent: January 30, 2024Assignee: Instituto Mexicano del PetróleoInventor: Jetzabeth Ramirez Sabag
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Patent number: 11866652Abstract: This disclosure relates to a procedure, which through the application of a catalyst in homogeneous phase, allows the transformation of heavy hydrocarbons (vacuum residue, atmospheric residue, heavy and extra-heavy crudes) into hydrocarbons of lower molecular weight, characterized because after its application, the hydrocarbons obtain greater API gravity, lower kinematic viscosity and different composition by hydrocarbon families (SARA) that increases the proportion of saturated and aromatic resins and asphalts. The sulphur and nitrogen content is also reduced, resulting in higher yields to high commercial value distillates and a lighter product as compared to the original crude.Type: GrantFiled: December 19, 2022Date of Patent: January 9, 2024Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Persi Schacht Hernandez, Jose Manuel Dominguez Esquivel, Benjamin Portales Martinez, Ismael Soto Escalante
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Patent number: 11760944Abstract: This disclosure relates to a procedure, which through the application of a catalyst in homogeneous phase, allows the transformation of heavy hydrocarbons (vacuum residue, atmospheric residue, heavy and extra-heavy crudes) into hydrocarbons of lower molecular weight, characterized because after its application, the hydrocarbons obtain greater API gravity, lower kinematic viscosity and different composition by hydrocarbon families (SARA) that increases the proportion of saturated and aromatic resins and asphalts. The sulphur and nitrogen content is also reduced, resulting in higher yields to high commercial value distillates and a lighter product as compared to the original crude.Type: GrantFiled: July 17, 2020Date of Patent: September 19, 2023Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Persi Schacht Hernandez, Jose Manuel Dominguez Esquivel, Benjamin Portales Martinez, Ismael Soto Escalante
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Patent number: 11692144Abstract: The present invention is related to the use of ethylene alkanoate-alkyl acrylate bipolymers with a high randomness monomers distribution, which are synthesized by semicontinuous emulsion polymerization process, characterized because it is carried out using slow addition rate of the pre-emulsion feeding ({dot over (q)}?0.009 kg·L?1·min?1), stabilized this last one by alkyl glycol ether type surfactants, at temperatures higher than 75° C. and with solids contents above 25 wt %, which avoids the formation of large sequences (blocks) of a same monomer. This structural characteristic gives the ethylene alkanoate-alkyl acrylate bipolymers a high efficiency as chemical agents for removal of complex water/crude oil emulsions of crude oil blends.Type: GrantFiled: November 16, 2020Date of Patent: July 4, 2023Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Cesar Andres Flores Sandoval, Flavio Salvador Vazquez Moreno, Fernando Alvarez Ramirez, Gerardo Zavala Olivares, Erika Gomez Buendia, Enrique Cevada Maya, Jessica Valeria Fuentes Santiago, Edgar Benedicto Zamora Guerrero, Citlally Janinne Vargas Martinez
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Patent number: 11692441Abstract: An object of the disclosure is to determine the remaining saturation of existing fluids in naturally fractured and/or homogeneous reservoirs, considering an unconventional tracer test, using the double tracer test method with pressure monitoring (PDTcMP®), which also integrates unused technical elements, in order to estimate more accurately the value of the remaining oil saturation (ROS) in naturally fractured reservoirs, unlike conventional methods used most commonly in homogeneous media. The disclosure substantially modifies the conventional tracer test, as it uses innovative technical elements, which reduce the uncertainty and/or ambiguity associated with conventional tracer tests, when they are applied in naturally fractured reservoirs.Type: GrantFiled: July 22, 2020Date of Patent: July 4, 2023Assignee: INSTITUTO MEXICANO DEL PETROLEOInventor: Jetzabeth Ramirez Sabag
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Patent number: 11613988Abstract: The present invention considers bringing a mobile unit closer to the site of interest and conduct the quantification of the tracers by performing the detection methods in situ and in real time at the wellhead, and that can be moved to the site on numerous occasions for the preparation of results during the test where the quantification of tracers is necessary, helping to speed up and reduce times that, until now, have not been achieved with stationary laboratories and that depending on the laboratory can last up to three months providing results.Type: GrantFiled: November 6, 2020Date of Patent: March 28, 2023Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Jetzabeth Ramirez Sabag, Jose Francisco Trejo Reyes
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Patent number: 11504701Abstract: This invention is related to the synthesis of organic carbonates from carbon dioxide and epoxides. It is particularly focused on the production of propylene cyclic carbonate from propylene oxide. The proposed catalytic materials includes a support made of aluminum oxyhydroxide (Catapal B®), nitric acid, acetic acid and/or phosphoric acid. An important stage is the physical and chemical conditioning of the catalytic materials and to this end, experimental methodologies such as spheronization and thermal treatments were implemented prior the evaluation process.Type: GrantFiled: November 22, 2020Date of Patent: November 22, 2022Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Javier Guzman Pantoja, Edith Meneses Ruiz, Candido Aguilar Barrera, Andrea Rodriguez Hernandez, Isidoro Garcia Cruz, Jose Antonio Munoz Arroyo, Juan Carlos Gaytan Ramos
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Patent number: 11498847Abstract: The present disclosure is directed to a non-destructive process for removing metals, metal ions and metal oxides in alumina-based materials without destroying alumina, allowing the regeneration of alumina-based catalysts. The non-destructive process uses an extracting agent that sequesters metals, metal ions and/or metal oxides present in alumina-based materials without destroying the alumina, allowing the regeneration of alumina-based catalysts.Type: GrantFiled: July 27, 2018Date of Patent: November 15, 2022Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Patricia Perez Romo, Candido Aguilar Barrera, Juan Navarrete Bolanos, Santos Glorindo Reyes Robles
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Patent number: 11384187Abstract: The present invention is related to the process of obtaining random terpolymers based on itaconic acid or its isomers, aconitic acid or their isomers and sodium alkenyl sulphonates, through a polymerization in aqueous solution, via free radicals at acid pH in the range of 1.0 to 3.5 and as initiator a redox system. The random terpolymers are characterized for being tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium. Their use as inhibitors of mineral scale such as calcium carbonate, calcium sulphate, strontium and barium, and clay dispersing, iron oxides, carbonate and calcium sulfate allows for their application in the reservoir or production rig, treated water, sea water and/or connate water can be used as means of transportation. The terpolymer can be used to inhibit and disperse mineral scales present in cooling system and boiler employed in the chemical and oil industry, and is compliant with environmental standards established internationally.Type: GrantFiled: March 13, 2015Date of Patent: July 12, 2022Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Mirna Pons Jiménez, Raúl Hernández Altamirano, José Manuel Martínez Magadan, Alejandro Ramirez Estrada, Luis Silvestre Zamudio Rivera
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Patent number: 11261282Abstract: Disclosed are chemical products useful for crude oil conditioning, particularly to demulsifying basic compounds. Disclosed are PEOw-PPOy-PEOw triblock bipolymers, with amphoteric groups, ?-amino acid derivatives, at the chain ends, which destabilize water-in-crude oil (W/O) emulsions, thereby removing emulsified water and salts dissolved salts in the aforementioned phase.Type: GrantFiled: May 1, 2020Date of Patent: March 1, 2022Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Cesar Andres Flores Sandoval, Flavio Salvador Vazquez Moreno, Alfonso Lopez Ortega, Fernando Alvarez Ramirez, Gerardo Zavala Olivares, Jessica Valeria Fuentes Santiago, Edgar Benedicto Zamora Guerrero
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Patent number: 11180628Abstract: The present invention is related to a catalytic process, which includes catalytic compositions for depolymerisation and deoxygenation of lignin contained in the biomass for obtaining aromatic hydrocarbons. The catalytic composition consists of at least one non-noble element from group VIIIB of the periodic table supported on a mesoporous matrix composed of an inorganic oxide, which can be alumina surface-modified with a second inorganic oxide with the object of inhibiting the interaction between the active component and the support. The process of lignin depolymerisation consists of dissolving lignin in a mixture of protic liquids, reacting it|a reaction system by batch or in continuous flow at inert and/or reducing atmosphere, at a temperature of between 60 to 320° C. and a pressure of from 5 to 90 kg/cm2.Type: GrantFiled: December 15, 2017Date of Patent: November 23, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Jose Antonio Toledo Antonio, Maria Antonia Cortes Jacome, Isidro Mejia Centeno, Jorge Alberto Garcia Martinez, Jose Escobar Aguilar, Esteban Lopez Salinas, Maria de Lourdes Araceli Mosqueira Mondragon, Miguel Perez Luna, Carlos Angeles Chavez, Jaime Sanchez Valente, Maria de Lourdes Alejandra Guzman Castillo, Ana Karina Medina Mendoza
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Patent number: 11149187Abstract: This disclosure relates to an organic gel formulation composition for blocking fluids in naturally fractured carbonate reservoirs, for salinity conditions up to 31,870.50 ppm of total dissolved solids and temperatures up to 120° C., that is, for the purpose temporarily isolating areas of the reservoirs, that will be treated with chemical and radioactive products to quantify the oil remaining in them, the stability of the gel is controlled in a certain period of time, through the synergic effect of the supramolecular interaction between the components of the gel formulation. A disclosed composition may include 0.3 to 1% by weight of a copolymer of acrylamide butyl tertiary of sulfonic acid and acrylamide, and 0.12 to 0.4% by weight of phenol and from 0.18 to 0.6% by weight of hexamethylenetetramine.Type: GrantFiled: July 15, 2019Date of Patent: October 19, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Jetzabeth Ramírez Sabag, Alejandro Ortega Rodriguez, Norma Araceli García Muñoz, Maribel Amador Ramírez, Ana Patricia Medina Montiel
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Patent number: 11149185Abstract: The present invention is related to the obtaining and using of multifunctional foaming compositions with wettability modifying, corrosion inhibitory and inhibitory/dispersants mineral scale properties with high stability in environments of high temperature, high pressure and tolerance to high concentrations of divalent ions such as calcium, magnesium, strontium and barium. The multifunctional foaming compositions are obtained from the combination of supramolecular complexes resulting from interactions of alkyl amido propyl hydroxysultaines and/or alkyl amido propyl betaines and/or alkyl hydroxysultaines and/or alkyl betaines and anionic surfactant of type alkyl hydroxyl sodium sulfonate and alkenyl sulphonates of sodium, with cationic surfactants as tetra-alkyl ammonium halides and copolymers derivatives of itaconic acid/sodium vinyl sulfonate and/or terpolymers derived from itaconic acid/sodium vinyl sulphonate/aconitic acid.Type: GrantFiled: February 5, 2020Date of Patent: October 19, 2021Assignee: INSTITUTO MEXICANO DEL PETRÓLEOInventors: Raúl Hernández Altamirano, Luis Silvestre Zamudio Rivera, Violeta Yázmin Mena Cervantes, Erick Emanuel Luna Rojero, David Aarón Nieto Álvarez, Rodolfo Cisneros Devora, Mirna Pons Jiménez, Alejandro Ramírez Estrada, América Elizabeth Mendoza Aguilar, Sung Jae Ko Kim
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Patent number: 11111443Abstract: The present invention deals with a process for catalytic cracking of hydrocarbons comprising vacuum gas oil, hydrotreated vacuum gas oil, unconventional light crude oil, preferably unconventional light crude oil type shale/tight oil and its blends with conventional vacuum gas oil, in order to generate products of major commercial value in the field of fuels, getting improved gasoline and coke yield, as well as the procedure for the preparation of a catalyst with essential physical properties of density and particle size to uphold it in a fluidized bed under the operation conditions in the catalyst evaluation unit at micro level, wherein the catalyst particles achieve a catalytic performance similar to fluidized microspheres in a reactor, without appreciable generation of fine particles.Type: GrantFiled: August 22, 2018Date of Patent: September 7, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Blanca Lucia Medellin Rivera, Maria del Rosario Socorro Luna Ramirez, Edith Meneses Ruiz, Rogelio Hernandez Suarez, Agapito Alberto Neri Gomez, Guadalupe Hayde Moreno Vasquez, Gonzalo Hernandez Tapia, Roberto Garcia De Leon
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Patent number: 11097255Abstract: The present invention relates to a catalytic formulation used in the hydroprocessing of light and middle oil fractions, preferably in hydrodesulfurization and hydrodenitrogenation reactions to obtain diesel with ultra low sulfur content less than or equal to 15 ppm in weight. The catalytic formulation, object of the present invention, consists of at least one metal of Group VI B and at least one metal of Group VIII B and one element of Group V A of the periodic table deposited on a support based on surface modified alumina with an inorganic oxide of a metal of Group II A, IV A and/or IV B. And containing an impregnated organic compound containing at least one hydroxyl group and at least one carboxyl group and that can contain or not at least one sulfide group in its structure. The catalytic formulation, object of the present invention, allows processing of the oil fractions with initial and final boiling temperatures between 150 and 450° C.Type: GrantFiled: June 17, 2015Date of Patent: August 24, 2021Assignees: INSTITUTO MEXICANO DEL PETROLEO, UNIVERSIDAD NACIONAL AUTONOMA DE MEXICOInventors: Maria Antonia Cortes Jacome, Jose Antonio Toledo Antonio, Jose Escobar Aguilar, Esteban Lopez Salinas, Carlos Angeles Chavez, Enelio Torres Garcia, Jose Gonzalo Hernandez Cortez, Maria de Lourdes Araceli Mosqueira Mondragon, Miguel Perez Luna, Gerardo Ferrat Torres, Jorge Fernando Ramirez Solis, Aida Gutierrez Alejandre
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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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Patent number: 11046605Abstract: Random copolymers from itaconic acid and/or isomers and sodium alkenyl sulfonates are obtained by polymerization in an aqueous solution via free radicals at an acidic pH in the range from 1.0 to 3.5 and with a redox system as initiator were described. The copolymers can be used as calcium carbonate and calcium, strontium and barium sulfates mineral scale inhibitors and as dispersants of clays, iron oxides, calcium carbonate and strontium, barium and calcium sulfates. Random copolymers prevent and control damage in an oil reservoir, obstruction of water injection and crude oil production pipelines, and in production rigs due to mineral scale precipitation caused by high levels of salinity of the injection water and formation water. Random copolymers are tolerant to high concentrations of divalent ions, such as calcium, magnesium, strontium and barium, and can be added to the reservoir and to injection or production pipelines, treated water, sea water and water that is used as means of transportation.Type: GrantFiled: October 17, 2019Date of Patent: June 29, 2021Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Raul Hernandez Altamirano, Violeta Yasmin Mena Cervantes, Luis Silvestre Zamudio Rivera, Erick Emanuel Luna Rojero, Jose Manuel Martinez Magadan, David Aaron Nieto Alvarez, Mirna Pons Jimenez, Alejandro Ramirez Estrada, Maria del Pilar Arzola Garcia