Abstract: The present invention is a system for the extraction and quantification of tetraprotic naphthenic acids present in oils, precursors of the formation of calcium naphthenates, which are potential formers of deposits, causing of damage to pieces of equipment used in the oil production industry.
Type:
Application
Filed:
September 22, 2015
Publication date:
June 2, 2016
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Flávio Cortiñas ALBUQUERQUE, Rafael dos Santos NASCIMENTO de BRITO, Marcele Abreu LOPES
Abstract: Polymeric blends of polystyrene (PS) and polylactic acid (PLA) are described, in the preparation of which a compatibilizing agent was added, preferably a PS-PLA block copolymer. Such compatibilizing agents act controlling phase separation of the blending compounds, and preventing excessive growth of polystyrene domains scattered in the PLA matrix; and this results in blends with good mechanical and thermal resistance.
Type:
Application
Filed:
May 16, 2014
Publication date:
May 12, 2016
Applicants:
PETROLEO BRASILEIRO S.A. - PETROBRAS, Universidade Federal do Rio Grande do Sul - UFRGS
Inventors:
Vinicius GALHARD GRASSI, Augusto Cesar DE CARVALHO PERES, Marcus Fernando DAL PIZZOL, Joao Manoel DA COSTA, Andreia OSSIG, Cesar LIBERATO PETZHOLD
Abstract: The present invention lies in the fields of chemistry and nanotechnology and describes a nanocomposite to be used in the recovery of several compounds from inorganic or organic medium. Specifically, the invention presents a nanocomposite consisting of magnetic nanoparticles composed of Fe3O4 associated to an activated charcoal adsorbent substrate, a process to obtain and methods of use of the nanocomposite. The present invention enables the processing, concentration and recovery of large volumes of contaminated water, regenerating magnetic adsorbent material for reuse, in a cyclic and sustainable manner, transforming dispersed/diluted pollutants in pre-concentrates that can be easily processed, helping to conserve natural resources.
Type:
Application
Filed:
June 11, 2015
Publication date:
December 24, 2015
Applicants:
Universidade de Sao Paulo-USP, PETROLEO BRASILEIRO S.A. - PETROBRAS
Abstract: The present invention relates to a method for the production of ethene, CO, and hydrogen in a reactor with a circulating fluidized bed with two independent sections, from feedstocks that contain hydrocarbons with at least 11 carbon atoms or from feedstocks with a high oxygen content, using a catalyst in particulate form. The method teaches that in one of the sections of the reactor, in the absence of oxygen, a catalyst containing a dehydrogenation metal promotes the cracking of the said feedstocks, facilitating the subsequent endothermic reactions. In the other section, the coke is burned with air and the heating of the catalyst is controlled, for the adjustment of the appropriate amount of energy that the heated catalyst will convey to the section in which the endothermic reactions take place. The total ethene yield of the process according to the present invention is approximately 20% by weight in relation to the feedstock.
Type:
Grant
Filed:
September 8, 2009
Date of Patent:
December 22, 2015
Assignee:
PETROLEO BRASILEIRO S.A. -PETROBRAS
Inventors:
Andrea de Rezende Pinho, Fabio Leal Mendes, Mauro Silva, Keiji Maeshiro, Antonio Wahib Bogossian Khalil, Julio Amilcar Ramos Cabral, Luis Fernando Soares de Azevedo, Daniel Santos de Albuquerque
Abstract: A two-step 2.5 FDCA integrated production process is described, comprising a first step for generating 5-HMF from streams comprising an aqueous carbohydrate solution wherein sub-critical water works as a catalyst by dehydrating the carbohydrates and generating 5-HMF, and a second step wherein 5-HMF is oxidized into 2.5 FDCA.
Type:
Grant
Filed:
October 17, 2013
Date of Patent:
December 1, 2015
Assignee:
PETROLEO BRASILEIRO S.A.-PETROBRAS
Inventors:
Bernardo Galvao Siqueira, Raphael Bezerra De Menezes, Carlos Rene Klotz Rabello, Marlito Gomes, Jr.
Abstract: The present invention relates to a process for obtaining a catalyst of high activity based on a mixture of supports, more specifically, the mixture of supports being Al2O3 plus MgCl2, intended for the production of polyolefins. The catalyst of the present invention involves the use of a spherical support based on special alumina that serves as a porous matrix, which is impregnated, by precipitation, with magnesium chloride by dissolving the latter in ethers and/or alcohols.
Type:
Grant
Filed:
March 10, 2010
Date of Patent:
November 24, 2015
Assignee:
PETROLEO BRASILEIRO S.A.-PETROBRAS
Inventors:
Noemi Tatizawa, Jaime Correia Da Silva, Danielle De Carvalho Pinto Freitas, Katia Simone Zanco Palma, Richard Faraco Amorim, Leandro Dos Santos Silveira
Abstract: The present invention relates to a catalyst for steam pre-reforming of hydrocarbons, containing in its formulation nickel and rare earths supported on alumina or magnesium or calcium aluminates, so as to increase the resistance to coke deposition, and the process for preparing said catalyst. Additionally the present invention relates to a process for manufacturing hydrogen or syn gas through steam pre-reforming olefin-containing hydrocarbons in the presence of the catalyst obtained according to the present invention.
Type:
Application
Filed:
May 16, 2014
Publication date:
November 5, 2015
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Roberto Carlos Pontes BITTENCOURT, Antonio Marcos Fonseca BIDART, Fabio Menezes PASSARELLI
Abstract: The invention relates to the preparation of carboxylic acid esters compounds, biodiesel (B) from microalgae, for use as a biofuel for compression type ignition. The objective is achieved through a hydroesterification process of a microalgae biomass (MU) comprising a hydrolysis stage and the esterification stage by means of heterogeneous catalysis. The wet microalgae biomass (MU) is the result of a process of cultivation concentration and is hydrolyzed directly in a hydrolysis column (20). Fatty acids (C), water (A) and raw glycerin (G) are obtained following the hydrolysis. The fatty acids (C) are esterified by reactive distillation in the presence of an impregnated heterogeneous catalyst (I).
Type:
Application
Filed:
November 28, 2012
Publication date:
August 27, 2015
Applicants:
UNIVERSIDADE FEDERAL DO RIO DE JANEIRO -UFRJ, PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Donato Alexandre Gomes Aranda, Yordanka Reyes Cruz, Gisel Chenard Dias, Leonardo Brantes Bacellar Mendes, Rafael Richard Joao
Abstract: The present invention refers to a method to repair flexible flow lines used in the petroleum industry. This method provides a means for quick and permanent repairs of birdcage-type failures (BC) in flexible ducts while they are in operation, without interrupting production flows. The technology proposed, because of its simple characteristics, eliminates the need for replacing the affected section and for allocating special vessels to perform the repair.
Abstract: A combustion device for meeting the energy demand of processes for producing light olefins (ethylene and propene) in fluidized-bed catalytic cracking units. The combustion device is used to burn heating oil and to keep burning the coke deposited on the catalyst, with a view to heating it to meet the energy demand of the reaction, combustion taking place smoothly and uniformly, preventing the formation of hotspots within the catalytic bed and in the dilute phase following combustion (afterburning), thereby minimizing deactivation of the catalyst and the risk of damage to the equipment inside of the combustion device.
Type:
Grant
Filed:
September 14, 2010
Date of Patent:
July 28, 2015
Assignee:
PETROLEO BRASILEIRO S.A.-PETROBRAS
Inventors:
Jose Mozart Fusco, Emanuel Freire Sandes, Naiara dos Santos Lages, Geovani Aliatti, Jose Geraldo Furtado Ramos, Ricardo Serfaty, Nelson Patricio Junior
Abstract: Additives are described for use in high solids content epoxy-based corrosion resistant coatings in liquid form, where such additives are composed by microcapsules containing a regenerating agent dispersed in an organic solvent. The coatings, when additivated with such dispersion, will have the ability to self-regenerate in the event of damages (cracks or scratches) to the applied and cured coating on the metal surface, preventing the propagation of corrosion on the exposed metal surface.
Type:
Application
Filed:
August 29, 2012
Publication date:
July 2, 2015
Applicants:
Universidade de São Paulo - USP, PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Marly Grinapel Lachtermacher, Jorge Fernando Pereira Coelho, Andre Koebsch, Pedro Altoe Ferreira, Victor Solymossy, Idalina Vieira Aoki
Abstract: The present invention relates to an apparatus for inspecting and monitoring flexible collection and production lines in real time, rendering possible constant tracking of the condition of the internal structures of a flexible riser, specifically of the tensile armor thereof. The device may be provided at any point along the riser ensuring the establishment of an area of physical and visual contact directly over the surface of the tensile armor of the riser for the installation of equipment for analysis, which area permits further accesses without destroying the sealing of the chamber there formed.
Type:
Grant
Filed:
May 7, 2014
Date of Patent:
May 5, 2015
Assignee:
Petroleo Brasileiro S.A.-Petrobras
Inventors:
George Carneiro Campello, Sergio Ricardo Kokay Morikawa
Abstract: The present invention refers to a method wherein a test body is assembled in specific configurations to be submitted to testing in a conventional hydrostatic chamber. The method calls for assembling a test body that simulates cementing failures, the presence of stress anisotropy and a borehole of irregular geometry, by pressurizing said test body in a conventional hydrostatic chamber. The uniform forces are distributed circumferentially around a casing stream in a non-uniform way, simulating operating conditions that are as close as possible to reality, enabling an analysis of how the structure reacts in scenarios similar to actual conditions.
Type:
Application
Filed:
December 22, 2011
Publication date:
April 16, 2015
Applicant:
PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Edgard Poiate Junior, Jose Nunes Pimentel Neto, Fernando Antonio Santos Medeiros, Alvaro Maia Da Costa, Jose Luiz Falcão, Claudio Dos Santos Amaral, Renato Seixas Da Rocha
Abstract: Additives for mixing into the base catalyst inventory of the fluid catalytic cracking (FCC) process units, so as to achieve a high selectivity of light olefins (ethylene and propylene), are described. Such additives comprise an FER zeolite and an MFI zeolite, the MFI zeolite preferably being zeolite ZSM-5. The mixture of the additive in a concentration greater than 2% w/w relative to the base catalyst of an FCC unit allows greater selectivity for light olefins, propylene and ethylene, while maintaining catalytic activity.
Type:
Application
Filed:
March 2, 2012
Publication date:
April 2, 2015
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Raquel Bastianti, Lam Yiu Lau, Andrea de Rezende Pinho, Rosana Wasserman, Ivanilda Barboza do Espirito Santo
Abstract: The present invention relates to an accessory device which comprises a damping sleeve (100), which is coupled to a bend stiffener (4), capable of acting in the anchoring operation of a riser (3) so as to eliminate the need for fuse cables and safety straps, the need to use a team of divers, and to guarantee the implementation of the operation in all sea conditions.
Abstract: The present invention relates to a method of preparing catalysts based on molybdenum sulphide, with an alkaline promoter incorporated, said catalysts being employed in the production of alcohols, especially ethanol, from synthesis gas. The method involves reaction of molybdenum hexacarbonyl (Mo(CO)6) with sulphur, so as to generate molybdenum sulphide, in which an alkaline promoter is then incorporated, so as to obtain a solid catalyst for application in processes of production of alcohols from synthesis gas, selective for ethanol.
Type:
Application
Filed:
June 13, 2012
Publication date:
January 15, 2015
Applicant:
PETROLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Arthur Jose Gerbasi da Silva, Antonio Manzolillo Sanseverino, Cristina Pontes Bittencourt Quitete, Antonio Carlos Sallares de Mattos Carvalho
Abstract: Method for transesterification of fatty acid esters. The method includes contacting (i) a catalyst comprising at least one of barium oxide and apatite with (ii) a reaction medium comprising at least one of vegetable oil and fats.
Type:
Grant
Filed:
October 18, 2013
Date of Patent:
October 7, 2014
Assignee:
Petroleo Brasileiro S.A.-Petrobras
Inventors:
Márcio de Figueiredo Portilho, Alexander Rangel Bastos
Abstract: This certificate of addition pertains to alternative constructive methods submitted for the components of the seal, resulting in increased efficiency and durability of the device, as well as the ease of assembly thereof. Compact restrictive seal (1) derived from these constructive alternatives can be applied indiscriminately to equipment lubricated by grease, fluid oil or oil mist.
Abstract: The present invention relates to a floating coastal structure used in water transportation terminals for production flowage of the petroleum industry. The structure exhibits a constructive configuration comprised of multiple monobuoys interconnected in an arrangement and in a specific dimensional relationship, being capable of reducing the instability and movements generated by the hydrodynamic effect of waves, thereby reducing the stresses of the accessory components, such as mooring lines, oil transfer lines and discharge hoses, connected to it.
Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.
Type:
Application
Filed:
November 22, 2013
Publication date:
June 5, 2014
Applicants:
INT - INSTITUTO NACIONAL DE TECNOLOGIA, PETRÓLEO BRASILEIRO S.A. - PETROBRAS
Inventors:
Marco André FRAGA, Tatiana Vieira GALVÃO, Simone Maria DE REZENDE, Andrea Maria Duarte DE FARIAS, Alexandre Barros GASPAR, Marlito GOMES JUNIOR, Carlos Renê Klotz RABELLO, Bernardo Galvão SIQUEIRA, Raphael Bezerra DE MENEZES