Patents Assigned to Petroleo Brasileiro S.A. Petrobras
  • Patent number: 10086358
    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: Grant
    Filed: June 11, 2015
    Date of Patent: October 2, 2018
    Assignees: PETROLEO BRASILEIRO S.A.-PETROBRAS, Universidade de Sao Paulo-USP
    Inventors: Koiti Araki, Ulisses Condomitti Epamino, Alceu Totti Silveira Junior, Sergio Hiroshi Toma, Henrique Eisi Toma
  • Patent number: 9983187
    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: Grant
    Filed: September 22, 2015
    Date of Patent: May 29, 2018
    Assignee: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Flávio Cortiñas Albuquerque, Rafael dos Santos Nascimento de Brito, Marcele Abreu Lopes
  • Publication number: 20180106406
    Abstract: The present invention provides a system for auto-alignment and tensioning of flexible pipes (24) in a stationary production unit, said system comprising (i) at least one tensioner (10) comprising an upper cone (10s) and a lower cone (10i), the upper cone (10s) and the lower cone (10i) being fixed together and forming a symmetrical double cone structure provided with an internally hollow cylindrical opening suitable for passage of a flexible pipe (24), (ii) at least one supporting fork (12) with pivoted connection to the at least one tensioner (10) and (iii) at least one coupling device (16) which, at a first end, is connected detachably to the at least one supporting fork (12) and, at a second end, is connected to the stationary production unit. A method for installing flexible pipes by means of said system is also provided.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Ricardo Wagner CAPLLONCH, Carlos Alberto Duarte de LEMOS, Anderson Barata CUSTODIO, Eduardo VARDARO
  • Publication number: 20180094201
    Abstract: The present invention describes a process for purifying biodiesel without using a filter aid, in which purification of the biodiesel takes place by a sequence of washing operations after the reaction section, with stirring that is sufficiently vigorous to assist in the transformation of the molecules of esterified steryl glycosides, in order to convert them to a chemical form that can be removed by the process.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 5, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Jose Antonio Vidal VIEIRA, Vitor Loureiro XIMENES, Carolina Ludwig QUINTANI, Marcio DE FIGUEIREDO PORTILHO, Roberto Ricardo RANGEL
  • Publication number: 20180093261
    Abstract: The present invention relates to catalysts of iron and chromium with a platinum promoter for use in water-gas shift reactions, both at low temperatures (LTS) and at high temperatures (HTS). Their characteristics of higher activity due to the addition of Pt compared to the conventional catalysts make them superior to the commercial catalysts in the same operating conditions. Because precursors of the active phase (Fe3O4) are obtained in greater quantity per unit area, it was possible to prepare catalysts that are more promising with a smaller surface area.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 5, 2018
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL FLUMINENSE - UFF
    Inventors: Luis Eduardo Terra DE ALMEIDA, Ludmila DE PAULA CABRAL SILVA, Ana Carla da Silveira Lomba Sant'ana COUTINHO, Fabio Barboza PASSOS, Vivian Passos DE SOUZA, Maira Andrade RODRIGUES, Amanda DE ALMEIDA DUMANI DOS SANTOS
  • Publication number: 20180086967
    Abstract: The present invention relates to a method for removing organic deposits from oil and gas wells and other subsystem systems comprising cumene and biodiesel. The invention also relates to a method for removing organic deposits, including the steps for pumping said remover composition through a riser and/or through peripheral pipes of the umbilical and/or production pipe, leaving the composition in contact with the deposit for a sufficient time for removal of at least 50% of such.
    Type: Application
    Filed: June 12, 2015
    Publication date: March 29, 2018
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wendel Rodrigues CEZARIO, Rodrigo Pio Borges MENEZES, Pedro Aledi PORTUGAL, Rosana Serfaty DE CAMPOS, Guilherme dos Santos VIEIRA LIMA, Plinio Martins Dias DA SILVA
  • Publication number: 20180085740
    Abstract: The present invention relates to a process for preparing a nickel-based catalyst promoted with aluminium compounds with increased resistance to thermal deactivation and to the nickel-based catalyst thus obtained. In addition, the present invention relates to the use of said catalyst in a steam reforming process starting from hydrocarbons for producing hydrogen or synthesis gas.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 29, 2018
    Applicant: Petroleo Brasileiro S.A. - Petrobras
    Inventor: Roberto Carlos PONTES BITTENCOURT
  • Publication number: 20180087328
    Abstract: The present invention relates to systems for securing connectors of risers in petroleum production units. In this scenario, the present invention provides an autonomous system for securing a riser support, said system comprising (i) a riser support (32) connected at its bottom end to a submerged riser (34) and at its upper end to a tensioning element (30), (ii) a supporting ledge (20) comprising a through-hole (22) through which the tensioning element (30) and at least part of the riser support (32) pass, (iii) a securing device (40) located on the supporting ledge (20), said securing device (40) sliding relative to the supporting ledge (20) and driven by an actuator (48), wherein the securing device (40) slides between an unlocked position and a locked position on the through-hole (22), wherein, in the locked position, the securing device (40) can engage with locking in a connector (38) of the riser support (32) after the connector (38) has passed through the through-hole (22) of the supporting ledge (20).
    Type: Application
    Filed: September 21, 2017
    Publication date: March 29, 2018
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Sergio Batista DE BARROS, Marcelo Costa VITIELLO
  • Publication number: 20180086992
    Abstract: The present invention describes a process for the simultaneous removal of arsenic and sulphur compounds from hydrocarbon streams of fossil origin, wherein hydrocarbon streams of fossil origin resulting from the retorting process of schist are purified by direct contact with hydrated iron oxide, such as goethite (?-FeOOH) in its raw natural form (limonite ore particles).
    Type: Application
    Filed: September 27, 2017
    Publication date: March 29, 2018
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wladmir FERRAZ DE SOUZA, Marcus Vinicius Eiffle DUARTE, Lilian ERNST, Carmen Lucia TAVARES DA SILVA
  • Patent number: 9879509
    Abstract: The present invention relates to the design of a nozzle valve (GL) for gas lifting that can be used in place of conventional orifice valves (VO). The gas lift nozzle valve (GL) according to the present invention has a body (1) with admission orifices (2), and, immediately below these, a slight recess (3) in the internal diameter of the body where a convergent nozzle (4) is fitted to regulate the gas flow passing through the inside of the nozzle valve (GL) towards the outlet (5) of the latter.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: January 30, 2018
    Assignee: PETROLEO BRASILEIRO S.A. -PETROBRAS
    Inventor: Alcino Resende De Almeida
  • Publication number: 20170240824
    Abstract: The present invention relates to a process for obtaining fuel from biomass which comprises the introduction of the catalyst (3) in the base of an cracking section (4), wherein said catalyst (3) at high temperature comes in contact with a gas stream of light hydrocarbons rich in hydrogen (1), wherein the catalyst (3) and hydrocarbon (1) then come in contact with a lignocellulosic liquid stream (2) in the same cracking section (4), creating the reaction mixture (5) that, soon after, comes into contact with the main stream containing the traditional fossil load of a FCC (6) in a second cracking section (7).
    Type: Application
    Filed: February 24, 2017
    Publication date: August 24, 2017
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Andrea de Rezende PINHO, Fabio Leal MENDES
  • Publication number: 20170144731
    Abstract: The present invention is related to a gravitation anchor for offshore anchoring of ships and platforms, comprising a main body (10) with a longitudinal axis of revolution (11), comprising a means of stabilization (14), whereby the means of stabilization (14) comprises a means of automatic activation (140). Optionally, the means of stabilization comprises at least one stabilizer (14), whereby each stabilizer (14) comprises an end pivotally attached (141) to the gravitation anchor (1), and a free end, whereby when the stabilizer (14) is in a retracted position, the free end is positioned closer to the main body (10) of the gravitation anchor (1), and whereby when the stabilizer (14) is in an extended position, the free end is positioned away from the main body (10) of the gravitation anchor (1).
    Type: Application
    Filed: November 17, 2016
    Publication date: May 25, 2017
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO
    Inventors: Daniel Fonseca DE CARVALHO E SILVA, Marcos Donato Auler DA SILVA FERREIRA, Antonio Carlos FERNANDES
  • Publication number: 20170138478
    Abstract: The present invention is for sealing gaskets applicable to pipes, valves and boiler equipment. In this context, the present invention provides a sealing gasket for piping systems comprising (i) a core (10) formed by a plurality of concentric metal rings (10a), each ring (10a) comprising a substantially rectangular cross-section, wherein the height of the rectangular cross-section is the same for all the rings (10a), and (ii) surface coating (12) of flexible material applied to the upper and lower surfaces of the core (10). The present invention also provides the manufacturing process of said sealing gasket. Thus, the present invention provides a sealing gasket (i) that eliminates the need for an external rigid ring, (ii) that is easy to conform for reduced-diameter sealing gaskets and (iii) can be easily formed into different shapes, such as an oval shape, which is particularly useful for sealing between the body and the gate valve bonnet.
    Type: Application
    Filed: November 15, 2016
    Publication date: May 18, 2017
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: Paulo Koji USUDA
  • Publication number: 20170136685
    Abstract: This invention offers a method to install a wear-resistant polymeric sleeve in a pipe bend stiffener with a metal inner wall, including the following steps: calculate thickness of the internal wall of the stiffener that can removed; remove the thickness of at least a portion of the calculated inner wall; and apply a polymeric material sleeve in the inner wall of the stiffener, where the polymeric material sleeve has the thickness of the inner wall removed.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 18, 2017
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Alexandre Soares RABELO, Volney Soares LOPES, Antonio Marcos Rego MOTTA
  • Publication number: 20170128956
    Abstract: This invention is for a centrifugal separator comprised of a group formed by: a central feed chamber (10) fed by a feed pipe (20); a separation chamber (30) including a number of frustoconical disks (3); a first recovery chamber (11) in communication with a first liquid phase recovery pipe (21) and a gaseous phase recovery pipe (23); and a second recovery chamber (12) communicating with a second liquid phase recovery pipe (22), where the group is encompassed by a rotating envelope (1), where the central feed chamber (10) is in liquid fluid communication with the separation chamber (30), and in gaseous fluid communication with the first recovery chamber (11), where the separation chamber (30) is in fluid communication with the first and second recovery chambers where the centrifugal separator is encompassed by pressurizable stationary casing (4a, 4b).
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, DELP ENGENHARIA MECANICA S/A
    Inventors: Marcos Aurélio DE SOUZA, Leonardo DOS SANTOS PEREIRA, Thiago Esteves MARTINS
  • Publication number: 20170128907
    Abstract: The present invention describes a photochemical hydrogenation process for heavy fractions of hydrocarbon streams where the aromatic and polyaromatic compounds present in that fraction selectively react in the presence of an alkoxide, when subjected to electromagnetic irradiation.
    Type: Application
    Filed: November 9, 2016
    Publication date: May 11, 2017
    Applicants: PETROLEO BRASILEIRO S.A. - PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO - RJ
    Inventors: Rodrigo Jose CORREA, Felipe Pereira FLEMING
  • Publication number: 20170106531
    Abstract: The present invention relates to a robotic inspection device (10) comprising at least one pair of robotic modules (1) connected together by means of an articulated joint (9), with at least one displacement device (2) coupled to a rail (11); the displacement device (2) comprising at least one pair of pivoted brackets (3); at least one of the robotic modules (1) comprising at least one within an instrumentation system (7) and a manipulator arm (8).
    Type: Application
    Filed: October 13, 2016
    Publication date: April 20, 2017
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, STATOIL BRASIL ÓLEO E GAS LTDA, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO - UFRJ
    Inventors: Romankevicius COSTA, Gustavo Medeiros DE FREITAS, Pal Johan FROM, Guilherme Pires De Sales DE CARVALHO, Mauricio GALASSI, Andres ROYROY, Peter Wilhelmus Jacques DERKS
  • Publication number: 20170082767
    Abstract: This invention relates to a method of correcting eccentricity of ultrasonic image profiles, measured along a section of rock, including the steps of measuring emitted amplitude values (A0) and measuring transit time values (t?) of ultrasonic acoustic pulses emitted at a range of default angles (?), where the amplitude measured at each angle (A?) is determined by an amplitude decay model in relation to the transit time (t?) defined by A ?=A?·et?/?·I?, where ? is the decay correction factor; and I? is the reflection coefficient of the rock wall.
    Type: Application
    Filed: September 19, 2016
    Publication date: March 23, 2017
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Candida Menezes de JESUS, Andre Luiz Martins COMPAN, Rodrigo SURMAS
  • Publication number: 20160251561
    Abstract: This invention describes the development of technology for the preparation of superparamagnetic lipophilic nanofluids, as well as of drilling fluid additives based on the aforementioned nanofluids, which improve the properties which form walls or mud filter cakes and concomitantly act as contrast agents in RMN logging.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Applicants: PETRÓLEO BRASILEIRO S.A. - PETROBRAS, Universidade de Sao Paulo - USP
    Inventors: Koiti ARAKI, Sergio Hiroshi TOMA, Delmárcio Gomes DA SILVA, Henrique Eisi TOMA, Rita de Cássia Comis WAGNER, Bernardo Coutinho Camilo DOS SANTOS, Alex Tadeu de Almeida WALDMANN
  • Publication number: 20160236183
    Abstract: This invention is aimed at making viable a catalyst and the process for obtaining it that besides having a higher resistance to the deposition of coke on the catalyst surface, does not introduce limitations to the process variables, maintains acceptable levels of activity throughout the steam reforming process and has a lower cost of production. The aforementioned objective is achieved by means of a catalyst formed by an inorganic oxide support, a mixture of Nickel, Lanthanum and Cerium and a promoter element.
    Type: Application
    Filed: October 17, 2013
    Publication date: August 18, 2016
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Antonio Marcos FONSECA BIDART, Roberto Carlos PONTES BITTENCOURT, Fabio MENEZES PASSARELLI