Patents by Inventor Jefferson Roberto Gomes
Jefferson Roberto Gomes 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: 11939535Abstract: The present invention relates to a process for the conversion of plant oils, animal fats, waste food oils and carboxylic acids into renewable liquid fuels, such as bio-naphtha, bioQAV and renewable diesel, for use in combination with fossil fuels. The process is composed of two steps: hydrotreatment and hydrocracking. The effluent from the hydrotreatment step contains aromatics, olefins and compounds resulting from the polymerization of esters and acids. This is due to the use of partially reduced catalysts without the injection of a sulfiding agent and allows for the production of bioQAV of suitable quality for use in combination with fossil kerosene. Concurrently, the process generates, in addition to products in the distillation range of naphtha, kerosene and diesel, high molecular weight linear paraffins (up to 40 carbon atoms).Type: GrantFiled: December 15, 2020Date of Patent: March 26, 2024Assignee: Petróleo Brasileiro S.A.—PetrobrasInventors: Jefferson Roberto Gomes, José Luiz Zotin, Anilza De Almeida Lyra Correa, Marcelo Edral Pacheco, Rodrigo Caetano Chistone
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Publication number: 20230332057Abstract: The present invention relates to a process for converting vegetable oils, animal fats, residual edible oils and carboxylic acids into renewable liquid fuels, such as bionaphtha, bioJET-A1 and renewable diesel, for use in a mixture with fossil fuels. The process consists of two steps: hydrotreating and hydrocracking. The effluent from the hydrotreatment step presents aromatics, olefins and compounds resulting from the polymerization of esters and acids in its composition. This fact occurs due to the use of partially reduced catalysts and without injection of sulfide agent and allows obtaining a bioJET-A1 with adequate quality for use in a mixture with fossil kerosene. At the same time, the process generates, in addition to products in the distillation range of naphtha, kerosene and diesel, high molecular weight linear paraffins (with up to 40 carbon atoms).Type: ApplicationFiled: August 20, 2021Publication date: October 19, 2023Inventors: Jefferson Roberto Gomes, Jose Luiz Zotin, Rodrigo Caetano Chistone, Anilza De Almeida Lyra Correa, Marcelo Edral Pacheco
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Publication number: 20230174874Abstract: The present invention refers to the processing of a 100% renewable load in FCC units, wherein the load comprises triglycerides of vegetable and animal source, free fatty acids, fatty acid esters, ketones, alcohols and long-chain aldehydes, using catalyst and appropriate operating conditions in order to obtain 100% renewable products with a high content of aromatic compounds, in the range of naphtha, kerosene, diesel and heavy gas oil. The product thus obtained complies with all the properties of the ASTM D1655 standard, even for contents of up to 10% renewable content. In addition, there is no need to reduce the freezing point of the fossil QAV for the introduction of the renewable component, with no impact on the yield and economy of the process.Type: ApplicationFiled: December 6, 2022Publication date: June 8, 2023Inventors: Jose Luiz Zotin, Marcelo Edral Pacheco, Rodrigo Caetano Chistone, William Richard Gilbert, Isa Santos Duarte, Andrea De Rezende Pinho, Jefferson Roberto Gomes
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Publication number: 20230049916Abstract: The present invention relates to a process for the production of bio-oil-based renewable streams for composing a diesel or aviation kerosene (AVK) pool by combining the technologies of hydroprocessing esters and fatty acids (HEFA) and thermochemical conversion of lignocellulosic biomass for generating bio-oil. The integration of conventional raw material from the HEFA pathway with a bio-oil fraction has the advantages of the use of a stream originating from the conversion of lignocellulosic material, which is widely available on the market, and also the production of a renewable stream containing aromatics in its composition.Type: ApplicationFiled: December 14, 2020Publication date: February 16, 2023Inventors: Adriano Do Couto Fraga, Andrea De Rezende Pinho, Luiza Torres Abrantes, Jefferson Roberto Gomes, Jose Luiz Zotin, Iris Medeiros Junior, Vitor Loureiro Ximenes, Marlon Brando Bezerra de Almeida
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Publication number: 20230047725Abstract: The present invention relates to a process for the conversion of plant oils, animal fats, waste food oils and carboxylic acids into renewable liquid fuels, such as bio-naphtha, bioQAV and renewable diesel, for use in combination with fossil fuels. The process is composed of two steps: hydrotreatment and hydrocracking. The effluent from the hydrotreatment step contains aromatics, olefins and compounds resulting from the polymerization of esters and acids. This is due to the use of partially reduced catalysts without the injection of a sulfiding agent and allows for the production of bioQAV of suitable quality for use in combination with fossil kerosene. Concurrently, the process generates, in addition to products in the distillation range of naphtha, kerosene and diesel, high molecular weight linear paraffins (up to 40 carbon atoms).Type: ApplicationFiled: December 15, 2020Publication date: February 16, 2023Inventors: Jefferson Roberto Gomes, José Luiz Zotin, Anilza De Almeida Lyra Correa, Marcelo Edral Pacheco, Rodrigo Caetano Chistone
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Patent number: 8513476Abstract: The process combines hydroconversion and catalytic cracking starting from a feed containing triglycerides, at concentrations of fatty acids above 85%, which maximizes the yields of light olefins, chiefly ethylene and propylene, while reducing the yield of gasoline, with conversion greater than 80 wt. %.Type: GrantFiled: June 3, 2009Date of Patent: August 20, 2013Assignee: Petroleo Brasileiro S.A.-PetrobrasInventors: Jefferson Roberto Gomes, Júlio Amílcar Ramos Cabral, Andrea de Rezende Pinho, Luis Fernando Soares de Azevedo
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Patent number: 8507738Abstract: A co-processing combining a first selective catalytic bed consisting of only one metal element selected from group VIB metals and of at least one conventional hydrotreating bimetallic catalytic bed. The co-processing provides control of the hydroconversion reactions of the triglycerides and/or fatty acids of biomass oil diluted in a refinery stream of petroleum hydrocarbons and minimizes the generation of gaseous products that are undesirable to the process, while maintaining the levels of unsaturated hydrocarbons hydrogenation and of heteroatomic contaminants removal from the refinery stream of petroleum hydrocarbons. The co-processing selectively providing n-paraffins of even number of carbon atoms, generated from the biomass oil, which are incorporated in a hydrotreated liquid product in petroleum refining HDT units.Type: GrantFiled: April 27, 2010Date of Patent: August 13, 2013Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Jefferson Roberto Gomes, José Luiz Zotin, Marcelo Edral Pacheco, Raissa Maria Cotta Ferreira Da Silva
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Patent number: 8366910Abstract: A process is described for hydroconversion of a mixture of organic oils of different origins in a conventional hydrotreatment unit, constituted by at least two catalyst beds, under moderately severe process conditions to obtain diesel fuel oil. The process includes injection of a stream of oil of animal or plant origin, with independently adjusted flow rates, from the second catalyst bed of the hydrotreatment unit onwards, in accordance with the variations in temperature observed in each of the catalyst beds after the first bed. The process is applicable to conventional hydrotreatment units, and makes it possible to overcome the effects of the highly exothermic nature of hydroconversion reactions in oils of animal and/or plant origin in hydrotreatment process for obtaining specified diesel fuel oil.Type: GrantFiled: April 26, 2007Date of Patent: February 5, 2013Assignee: Petroleo Brasileiro S.A.-PetrobrasInventors: Jefferson Roberto Gomes, Raissa Maria Cotta Ferreira da Silva, Rogerio Oddone, Adriana de Souza Ferreira, Nelmo Furtado Fernandes
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Patent number: 8067657Abstract: The process described by this invention involves the hydroconversion of vegetable oils appropriately selected for the production of N-paraffins, through hydrotreatment of a stream of vegetable hydrocarbon oils in and/or natural fats that may be used in a pure state or in a mixture with mineral hydrocarbon oil. This mixture flow is submitted to the process of hydrotreatment, obtaining as a result, a product flow with an elevated content of N-paraffins in the range of C10-C-13. This process provides an alternative to the usual process that uses a mineral hydrocarbon oil load (petroleum kerosene of paraffin base) to produce C10-C13 N-paraffins that are raw materials for the production of detergents (LAB), being, therefore, especially advantageous for use in situations where kerosene is a limiting factor for producing N-paraffins, resulting in a product of good quality with a reasonable gain in the production of N-paraffins.Type: GrantFiled: April 17, 2007Date of Patent: November 29, 2011Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Fernando Antonio Duarte Santiago, Wlamir Soares Nogueira, Anita Eleonora Ferreira Fontes, Lelia Maria Ximenes Lowe, Jefferson Roberto Gomes
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Publication number: 20100270207Abstract: A co-processing combining a first selective catalytic bed consisting of only one metal element selected from group VIB metals and of at least one conventional hydrotreating bimetallic catalytic bed. The co-processing provides control of the hydroconversion reactions of the triglycerides and/or fatty acids of biomass oil diluted in a refinery stream of petroleum hydrocarbons and minimizes the generation of gaseous products that are undesirable to the process, while maintaining the levels of unsaturated hydrocarbons hydrogenation and of heteroatomic contaminants removal from the refinery stream of petroleum hydrocarbons. The co-processing selectively providing n-paraffins of even number of carbon atoms, generated from the biomass oil, which are incorporated in a hydrotreated liquid product in petroleum refining HDT units.Type: ApplicationFiled: April 27, 2010Publication date: October 28, 2010Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Jefferson Roberto Gomes, José Luiz Zotin, Marcelo Edral Pacheco, Raissa Maria Cotta Ferreira Da Silva
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Patent number: 7785461Abstract: A process for the selective hydrodesulfurization of a naphtha containing olefins and organosulfur compounds is disclosed, which minimizes the hydrogenation of the olefins and results in a product with a low sulfur content. The process involves a two-stage hydrodesulfurization with H2S removed from the first stage effluent. A flow of hydrogen and at least one added non-reactive compound is fed into the first stage, wherein the H2 molar fraction ranges from 0.2 to 1.0, and with H2S at the reactor intake limited to a maximum of 0.1% by volume. The second stage involves a feedstream of hydrogen and at least one added non-reactive compound, wherein the H2 molar fraction ranges from 0.2 to 0.7 and with H2S at the reactor intake limited to a maximum of 0.05% by volume.Type: GrantFiled: April 6, 2005Date of Patent: August 31, 2010Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Rafael Menegassi De Almeida, Jefferson Roberto Gomes, Marcelo Edral Pacheco, Marcus Vinicius Eiffle Duarte, Rogerio Oddone, Giane Ribeiro Stuart
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Patent number: 7754068Abstract: A process for the selective hydrodesulfurization of naphtha streams containing olefins and organosulfur compounds that minimizes olefin hydrogenation and results in a reduced sulfur content product. This is attained by two-stage hydrodesulfurization and H2S removal from the first stage effluent, with the first reaction stage catalyst being a more active HDS catalyst than the second reaction stage catalyst. Hydrogen and a non-reactive compound are fed to the first stage, with the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 1.0. H2S at the reactor inlet is limited to not more than 0.1% by volume. Hydrogen and a non-reactive compound are fed to the second reaction stage, the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 0.7. H2S at the reactor inlet is limited to not more than 0.05% by volume.Type: GrantFiled: November 21, 2006Date of Patent: July 13, 2010Assignee: Petroleo Brasileiro S.A.-PetrobrasInventors: Rafael Menegassi De Almeida, Jefferson Roberto Gomes, Guilherme Luis Monteiro De Souza, Joy Leslie, legal representative, Xiaondong Hu
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Publication number: 20090326293Abstract: The process combines hydroconversion and catalytic cracking starting from a feed containing triglycerides, at concentrations of fatty acids above 85%, which maximizes the yields of light olefins, chiefly ethylene and propylene, while reducing the yield of gasoline, with conversion greater than 80 wt. %.Type: ApplicationFiled: June 3, 2009Publication date: December 31, 2009Applicant: PETROLEO BRASILEIRO S.A. -PETROBRASInventors: Jefferson Roberto GOMES, Julio Amilcar Ramos Cabral, Andrea de Rezende Pinho, Luis Fernando Soares de Azevedo
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Publication number: 20090301932Abstract: A process is described for hydroconversion of a mixture of organic oils of different origins in a conventional hydrotreatment unit, constituted by at least two catalyst beds, under moderately severe process conditions to obtain diesel fuel oil. The process includes injection of a stream of oil of animal or plant origin, with independently adjusted flow rates, from the second catalyst bed of the hydrotreatment unit onwards, in accordance with the variations in temperature observed in each of the catalyst beds after the first bed. The process is applicable to conventional hydrotreatment units, and makes it possible to overcome the effects of the highly exothermic nature of hydroconversion reactions in oils of animal and/or plant origin in hydrotreatment process for obtaining specified diesel fuel oil.Type: ApplicationFiled: April 26, 2007Publication date: December 10, 2009Applicant: PETROLEO BRAISLEIRO S.A. - PETROBRASInventors: Jefferson Roberto Gomes, Raissa Maria Cotta Ferreira da Silva, Rogerio Oddone, Adriana De Souza Ferreira, Nelmo Furtado Fernandes
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Patent number: 7504023Abstract: A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.Type: GrantFiled: August 31, 2006Date of Patent: March 17, 2009Assignee: Petroleo Brasileiro S.A.Inventors: Oscar René Chamberlain Pravia, Henrique Soares Cerqueira, Elizabeth M. Moreira, Cláudia Maria de L. Alvarenga Baptista, Jefferson Roberto Gomes, Paulo César Peixoto Bugueta
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Publication number: 20080132435Abstract: Process for hydroconversion of loads of mixtures of waxes from renewable resources that may be made up of waxes of mineral origin or waxes of animal origin, that may be used in their pure form or mixed in any proportion, that may optionally be combined with loads of hydrocarbons of mineral origin, as is the case of waxes obtained from petroleum, by industrial treatment. This mixture flow is submitted to a hydrotreatment and hydroisomerization/hydrofinishing process and the referenced process takes place under the usual hydroconversion conditions, in the presence of a hydrogen stream and hydroconversion catalysts, resulting in obtaining products referred to as biolubricants and bioparaffins, that present characteristics of being biodegradable and less of an environmental pollutant.Type: ApplicationFiled: June 5, 2007Publication date: June 5, 2008Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Anita Eleonora Ferreira Fontes, Wlamir Soares Nogueira, Fernando Antonio Duarte Santiago, Jefferson Roberto Gomes
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Patent number: 7361265Abstract: A process for the hydrodesulfurization of cracked olefin streams is described, the process aiming at reducing the sulfur content while at the same time minimizing the hydrogenation degree of said olefins. In order to dilute the added reaction hydrogen, the process makes use of non-reactive compounds such as N2, CH4, C2H6, C3H8, C4H10, Group VIII noble gases as well as admixtures of same in any amount, in gas or vapor phase.Type: GrantFiled: March 12, 2003Date of Patent: April 22, 2008Assignee: Petroleo Brasileiro S.A.-PetrobrasInventors: Rafael M. de Almeida, Jefferson Roberto Gomes
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Publication number: 20070267326Abstract: A process for the selective hydrodesulfurization of naphtha streams containing olefins and organosulfur compounds is described, said process minimizing olefin hydrogenation and resulting into a product having a reduced sulfur content, this being attained by two-stage hydrodesulfurization and H2S removal from the first stage effluent, with the first reaction stage catalyst being a more active HDS catalyst than the catalyst of the second reaction stage. A stream of hydrogen and at least one added non-reactive compound is fed to the first stage, with the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 1.0 and limiting H2S at the reactor inlet to not more than 0.1% by volume. A hydrogen and at least one added non-reactive compound stream is fed to the second reaction stage, the H2 mole fraction in the mixture of H2 and non-reactive compound being from 0.2 to 0.7 and limiting H2S at the reactor inlet to not more than 0.05% by volume.Type: ApplicationFiled: November 21, 2006Publication date: November 22, 2007Inventors: Rafael Menegassi De Almeida, Jefferson Roberto Gomes, Guilherme Luis Monteiro De Souza, Xiaondong Hu
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Publication number: 20070260102Abstract: The process described by this invention involves the hydroconversion of vegetable oils appropriately selected for the production of N-paraffins, through hydrotreatment of a stream of vegetable hydrocarbon oils in and/or natural fats that may be used in a pure state or in a mixture with mineral hydrocarbon oil. This mixture flow is submitted to the process of hydrotreatment, obtaining as a result, a product flow with an elevated content of N-paraffins in the range of C10-C-13. This process provides an alternative to the usual process that uses a mineral hydrocarbon oil load (petroleum kerosene of paraffin base) to produce C10-C13 N-paraffins that are raw materials for the production of detergents (LAB), being, therefore, especially advantageous for use in situations where kerosene is a limiting factor for producing N-paraffins, resulting in a product of good quality with a reasonable gain in the production of N-paraffins.Type: ApplicationFiled: April 17, 2007Publication date: November 8, 2007Applicant: PETROLEO BRASILEIRO S.A.-PETROBRASInventors: Fernando Antonio Duarte Santiago, Wlamir Soares Nogueira, Anita Eleonora Ferreira Fontes, Lelia Maria Ximenes Lowe, Jefferson Roberto Gomes
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Publication number: 20040026299Abstract: A process for reducing the naphthenic acidity of petroleum oils, or their liquid fractions, is described, the process comprising a thermal treatment of the petroleum oils, or their liquid fractions, in the presence of an adsorbent the surface of which is covered by high molecular weight carbon compounds. Preferred adsorbents are the spent or coked FCC catalysts.Type: ApplicationFiled: July 2, 2003Publication date: February 12, 2004Inventors: Oscar Rene Chamberlain Pravia, Henrique Soares Cerqueira, Elizabeth M. Moreira, Claudia Maria de L. Alvarenga Baptista, Jefferson Roberto Gomes, Paulo Cesar Peixoto Bugueta