Patents by Inventor Rafael Martinez Palou
Rafael Martinez Palou 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: 10676829Abstract: Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.Type: GrantFiled: May 17, 2018Date of Patent: June 9, 2020Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Jesus Marin Cruz, Araceli Vega Paz, Luisa Elena Montiel Sanchez, Salvador Castillo Cervantes, Rafael Martinez Palou, Arquimedes Estrada Martinez, Luis Manuel Quej Ake, Jose Luis Rodolfo Benitez Aguilar, Veronica Sanchez Garcia
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Patent number: 10384247Abstract: Embodiments of the present invention provide for efficient methods and processes for preparing ionic amino acid esters from a specific synthesis route. The disclosed embodiments consist of a single reaction step: reacting a natural or synthetic unprotected amino acid with an aliphatic, branched or aromatic fatty alcohol of even or odd number of carbon atoms from 6 to 20 with or without unsaturation(s), in stoichiometric amounts, in the presence of an organic acid (HX) like carboxylate, mesylate, tosylate or sulfonate, employed as catalyst and under conventional heating (CC) of 1 to 3 hours at a temperature in the range of approximately 60 to 150° C. and pressure the range of approximately 0 to approximately 250 psi; the product obtained is cooled and recrystallized from ethanol.Type: GrantFiled: September 8, 2015Date of Patent: August 20, 2019Assignee: Instituto Mexicano Del PetroleoInventors: Rafael Martínez Palou, Ricardo Cerón Camacho, Alba Adriana Vallejo Cardona, Romeo Jesús Reyes Ávila, Juan de la Cruz Clavel Lopez, César Bernal Huicochea, Mario Ramiréz De Santiago, Jorge Arturo Aburto Anell
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Publication number: 20190233738Abstract: A process is disclosed for removing fluoridated compounds from any organic medium, for example from alkylation (“alkylated”) gasoline, which can be applied at the exit of the alkylation process or inside the distillation column of the alkylation process. The process uses extractant chemical agents based on ionic liquids, of general formula C+A?, where C+ represents an organic or inorganic cation, specifically imidazolium, pyridinium, or ammonium salts, while the anion A? represents the halide-type derivatives, iron (III) salts, aluminum (III) salts, acetate, benzoate-acetates, benzoates, hexafluorophosphate, tetra-chloroborate, triflates, bis-triflates and trifluoroacetates. These ionic liquids act as extractant agents to remove fluoridated compounds from the hydrocarbon streams that are produced in the process of alkylation of isubutane with butenes, through a liquid-liquid extraction process, with a reduction of more than 80% in the content of contaminants like organofluoridated hydrocarbons.Type: ApplicationFiled: January 30, 2019Publication date: August 1, 2019Inventors: Alma Delia Miranda Olvera, Rafael Martinez Palou, Jose Manuel Dominguez Esquivel
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Publication number: 20190193063Abstract: The present invention describes a process to prepare catalyst systems based on metal salts, supported on natural polymers and co-catalyzed by organic bases, for the catalytic transformation of carbon dioxide to organic carbonates through cycloaddition reactions to epoxides. The advantages of the presented system can be summarized on the use of raw materials of low cost for the preparation of the catalyst system, minimal environmental risk due to the low toxicity of the materials used, in some cases biodegradable such as the natural polymers, as well as high catalytic efficiency, reaching selectivities up to 100% and in some cases quantitative yields.Type: ApplicationFiled: June 23, 2017Publication date: June 27, 2019Inventors: Heriberto DÍAZ VELÁZQUEZ, Rafael MARTÍNEZ PALOU, Javier GUZMÁN PANTOJA, Roberto GARCÍA DE LEÓN
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Publication number: 20180265991Abstract: Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.Type: ApplicationFiled: May 17, 2018Publication date: September 20, 2018Inventors: Jesus MARIN CRUZ, Araceli VEGA PAZ, Luisa Elena MONTIEL SANCHEZ, Salvador CASTILLO CERVANTES, Rafael MARTINEZ PALOU, Arquimedes ESTRADA MARTINEZ, Luis Manuel QUEJ AKE, Jose Luis Rodolfo BENITEZ AGUILAR, Veronica SANCHEZ GARCIA
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Patent number: 10011908Abstract: Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.Type: GrantFiled: October 28, 2014Date of Patent: July 3, 2018Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Jesus Marin Cruz, Araceli Vega Paz, Luisa Elena Montiel Sanchez, Salvador Castillo Cervantes, Rafael Martinez Palou, Arquimedes Estrada Martinez, Luis Manuel Quej Ake, Jose Luis Rodolfo Benitez Aguilar, Veronica Sanchez Garcia
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Publication number: 20180140993Abstract: The present invention describes a combined liquid absorbent system to capture gaseous CO2. The said combination is given by the mixture of an IL and an amino acid aqueous solution. This mixture has an improved CO2 absorption performance with respect to the separate components that are part of it. These components can be regenerated and reused in several absorption cycles without losing absorption capacity.Type: ApplicationFiled: November 22, 2017Publication date: May 24, 2018Inventors: Rafael MARTINEZ PALOU, Javier GUZMAN PANTOJA, Roberto GARCIA DE LEON, Christian ORTEGA GUEVARA
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Patent number: 9850197Abstract: Ionic liquids of the general formula C+A? where C+ represents an organic cation, specifically, but not limited to the imidazolium, pyridinium, isoquinolinium, ammonium types, which have aliphatic and aromatic substituents, while A? represents a carboxylate, aromatic and aliphatic anion. The ionic liquids are synthesized under conventional heating or microwave irradiation This invention is also related to the application of ionic liquids to remove sulfur compounds of naphthas through a liquid-liquid extraction and the recovery and reuse of ionic liquids by the application of heat, reduced pressure and washing with solvents.Type: GrantFiled: December 8, 2014Date of Patent: December 26, 2017Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Rafael Martinez Palou, Natalya Victorovna Likhanova, Eugenio Alejandro Flores Oropeza, Diego Javier Guzman Lucero
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Patent number: 9677009Abstract: The present invention relates to a process for breaking of preferred, but not exclusive, oil-in-water emulsions (O/W) and water separation from crude oil emulsions using surfactants as demulsifying agents derived from natural or synthetic amino acids, which are water soluble. The surfactants are of the methanesulfonate series of glycine ester derivatives with hydrocarbon chains, preferably between C10 and C16, at a concentration between 450 and 900 ppm, at a temperature range of 30 to 60° C. The removal of water from the crude oil by using natural or synthetic amino acid-based demulsifiers is highly efficient (about 80%) and complemented with the action of an electric field typically used in electrostatic separators in crude oil terminals ad oil refineries, increasing the efficiency of water separation substantially, and enabling the production of dehydrated crude oil for further processing.Type: GrantFiled: June 4, 2014Date of Patent: June 13, 2017Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Romeo Jesus Reyes Avila, Rafael Martinez Palou, Ricardo Ceron Camacho, Alba Adriana Vallejo Cardona, Rafael Rodriguez Dominguez, Benjamin Chavez Gomez, Jorge Arturo Aburto Anell
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Publication number: 20160068471Abstract: Embodiments of the present invention provide for efficient methods and processes for preparing ionic amino acid esters from a specific synthesis route. The disclosed embodiments consist of a single reaction step: reacting a natural or synthetic unprotected amino acid with an aliphatic, branched or aromatic fatty alcohol of even or odd number of carbon atoms from 6 to 20 with or without unsaturation(s), in stoichiometric amounts, in the presence of an organic acid (HX) like carboxylate, mesylate, tosylate or sulfonate, employed as catalyst and under conventional heating (CC) of 1 to 3 hours at a temperature in the range of approximately 60 to 150° C. and pressure the range of approximately 0 to approximately 250 psi; the product obtained is cooled and recrystallized from ethanol.Type: ApplicationFiled: September 8, 2015Publication date: March 10, 2016Inventors: Rafael MARTÍNEZ PALOU, Ricardo CERÓN CAMACHO, Alba Adriana VALLEJO CARDONA, Romeo Jesús REYES ÁVILA, Juan de la Cruz CLAVEL LOPEZ, César BERNAL HUICOCHEA, Mario RAMIRÉZ DE SANTIAGO, Jorge Arturo ABURTO ANELL
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Patent number: 9157034Abstract: This invention is related to the use of ionic liquids of general formula C+A?, where C+ represents a cation of organic or inorganic type, specifically of the type imidazolium, pyridinium or ammonium salts, while the anion A? are derivatives which are halides, salts of iron (III), aluminum salts (III), acetate and benzoate, though not exclusively. These agents act as ionic liquid extractants of nitrogenous compounds present in hydrocarbon streams through a process of liquid-liquid extraction thereby can be reduced by more than 60% the content of these contaminants in hydrocarbon streams.Type: GrantFiled: July 26, 2012Date of Patent: October 13, 2015Assignee: INSTITUTO MEXICANO DEL PETROLEOInventors: Rafael Martinez Palou, Diego Javier Guzman Lucero, Jorge Froylan Palomeque Santiago
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Publication number: 20150118104Abstract: Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.Type: ApplicationFiled: October 28, 2014Publication date: April 30, 2015Inventors: Jesus MARIN CRUZ, Araceli VEGA PAZ, Luisa Elena MONTIEL SANCHEZ, Salvador CASTILLO CERVANTES, Rafael MARTINEZ PALOU, Arquimedes ESTRADA MARTINEZ, Luis Manuel QUEJ AKE, Jose Luis Rodolfo BENITEZ AGUILAR, Veronica SANCHEZ GARCIA
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Patent number: 8999151Abstract: Ionic liquids of the general formula C+A? where C+ represents an organic cation, specifically, but not limited to the imidazolium, pyridinium, isoquinolinium, ammonium types, which have aliphatic and aromatic substituents, while A? represents a carboxylate, aromatic and aliphatic anion. The ionic liquids are synthesized under conventional heating or microwave irradiation This invention is also related to the application of ionic liquids to remove sulfur compounds of naphthas through a liquid-liquid extraction and the recovery and reuse of ionic liquids by the application of heat, reduced pressure and washing with solvents.Type: GrantFiled: August 27, 2009Date of Patent: April 7, 2015Assignee: Instituto Mexicano del PetroleoInventors: Rafael Martinez Palou, Natalya Victorovna Likhanova, Eugenio Alejandro Flores Oropeza, Diego Javier Guzman Lucero
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Publication number: 20150090639Abstract: Ionic liquids of the general formula C+A? where C+ represents an organic cation, specifically, but not limited to the imidazolium, pyridinium, isoquinolinium, ammonium types, which have aliphatic and aromatic substituents, while A? represents a carboxylate, aromatic and aliphatic anion. The ionic liquids are synthesized under conventional heating or microwave irradiation This invention is also related to the application of ionic liquids to remove sulfur compounds of naphthas through a liquid-liquid extraction and the recovery and reuse of ionic liquids by the application of heat, reduced pressure and washing with solvents.Type: ApplicationFiled: December 8, 2014Publication date: April 2, 2015Inventors: Rafael Martinez Palou, Natalya Victorovna Likhanova, Eugenio Alejandro Flores Oropeza, Diego Javier Guzman Lucero
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Publication number: 20140360920Abstract: The present invention relates to a process for breaking of preferred, but not exclusive, oil-in-water emulsions (O/W) and water separation from crude oil emulsions using surfactants as demulsifying agents derived from natural or synthetic amino acids, which are water soluble. The surfactants are of the methanesulfonate series of glycine ester derivatives with hydrocarbon chains, preferably between C10 and C16, at a concentration between 450 and 900 ppm, at a temperature range of 30 to 60° C. The removal of water from the crude oil by using natural or synthetic amino acid-based demulsifiers is highly efficient (about 80%) and complemented with the action of an electric field typically used in electrostatic separators in crude oil terminals ad oil refineries, increasing the efficiency of water separation substantially, and enabling the production of dehydrated crude oil for further processing.Type: ApplicationFiled: June 4, 2014Publication date: December 11, 2014Inventors: Romeo Jesus REYES AVILA, Rafael MARTINEZ PALOU, Ricardo CERON CAMACHO, Alba Adriana VALLEJO CORONA, Rafael RODRIGUEZ DOMINGUEZ, Benjamin CHAVEZ GOMEZ, Jorge Arturo ABURTO ANELL
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Patent number: 8821716Abstract: The present invention relates to an improved desulfurization process using an ionic liquid compound of general formula C+A?, where C+ represents an organic cation such as alkyl-pyridinium, di-alkyl imidazolium and tri-alkyl imidazolium; and A? is an anion of halides of iron (III), such as, for example, FeCl4?. The desulfurization process is also improved when producing the ionic liquid compound by heating the reactants using microwave energy. The ionic liquids can be used to desulfurize hydrocarbon mixtures by a liquid-liquid extraction.Type: GrantFiled: May 26, 2009Date of Patent: September 2, 2014Assignee: Instituto Mexicano del PetroleoInventors: Natalya Victorovna Likhanova, Rafael Martinez Palou, Jorge Froylan Palomeque Santiago
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Patent number: 8597517Abstract: A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic solvent; adjusting the pH of the mixture to pH 7-10 by the addition of a base to form a first precipitate; separating the first precipitate from the mixture; removing the organic solvent from the first mixture to form a second precipitate and separating the second precipitate from the first mixture; acidifying the resulting mixture to pH 2-7 by the addition of an acid; and drying the mixture to obtain a second ionic liquid having a halogen anion.Type: GrantFiled: March 4, 2011Date of Patent: December 3, 2013Assignee: Instituto Mexicano del PetroleoInventors: Diego Javier Guzmán Lucero, Natalya Victorovna Likhanova, Rafael Martínez Palou, Eugenio Alejandro Flores Oropeza, Jorge Froylán Palomeque Santiago
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Publication number: 20130026073Abstract: This invention is related to the use of ionic liquids of general formula C+A?, where C+ represents a cation of organic or inorganic type, specifically of the type imidazolium, pyridinium or ammonium salts, while the anion A? are derivatives which are halides, salts of iron (III), aluminum salts (III), acetate and benzoate, though not exclusively. These agents act as ionic liquid extractants of nitrogenous compounds present in hydrocarbon streams through a process of liquid-liquid extraction thereby can be reduced by more than 60% the content of these contaminants in hydrocarbon streams.Type: ApplicationFiled: July 26, 2012Publication date: January 31, 2013Applicant: INSTITUTO MEXICANO DEL PETROLEOInventors: Rafael MARTINEZ PALOU, Diego Javier GUZMAN LUCERO, Jorge Froylan PALOMEQUE SANTIAGO
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Publication number: 20110215052Abstract: A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic solvent; adjusting the pH of the mixture to pH 7-10 by the addition of a base to form a first precipitate; separating the first precipitate from the mixture; removing the organic solvent from the first mixture to form a second precipitate and separating the second precipitate from the first mixture; acidifying the resulting mixture to pH 2-7 by the addition of an acid; and drying the mixture to obtain a second ionic liquid having a halogen anion.Type: ApplicationFiled: March 4, 2011Publication date: September 8, 2011Applicant: INSTITUTO MEXICANO DEL PETROLEOInventors: Diego Javier Guzmán Lucero, Natalya Victorovna Likhanova, Rafael Martínez Palou, Eugenio Alejandro Flores Oropeza, Jorge Froylán Palomeque Santiago
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Publication number: 20100051509Abstract: Ionic liquids of the general formula C+A? where C+ represents an organic cation, specifically, but not limited to the imidazolium, pyridinium, isoquinolinium, ammonium types, which have aliphatic and aromatic substituents, while A? represents a carboxylate, aromatic and aliphatic anion. The ionic liquids are synthesized under conventional heating or microwave irradiation This invention is also related to the application of ionic liquids to remove sulfur compounds of naphthas through a liquid-liquid extraction and the recovery and reuse of ionic liquids by the application of heat, reduced pressure and washing with solvents.Type: ApplicationFiled: August 27, 2009Publication date: March 4, 2010Applicant: INSTITUTO MEXICANO DEL PETROLEOInventors: Rafael Martinez Palou, Natalya Victorovna Likhanova, Eugenio Alejandro Flores Oropeza, Diego Javier Guzman Lucero