Patents Assigned to Petróleo Brasileiro S.A. - Petrobras
  • Process for hydrotreating biomass oil diluted in a refinery stream of petroleum hydrocarbons
    Patent number: 8507738
    Abstract: 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: Grant
    Filed: April 27, 2010
    Date of Patent: August 13, 2013
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Jefferson Roberto Gomes, José Luiz Zotin, Marcelo Edral Pacheco, Raissa Maria Cotta Ferreira Da Silva
  • Production of propylene glycol from glycerine
    Patent number: 8492597
    Abstract: The present invention describes a process for the production of propylene glycol from glycerol, the transformation of purified glycerol to propylene glycol being carried out by means of a reaction of hydrogenolysis, in the liquid phase, where the two stages of the reaction take place simultaneously and in one and the same reactor (1) under specified conditions of temperature and pressure, and the effluent from the fixed-bed reactor (1) is led to subsequent process stages that comprise separation and purification.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: July 23, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Carlos René Klotz Rabello, Marlito Gomes Junior, Bernardo Galvão Siqueira, Raphael Bezerra de Menezes, Wilson Kenzo Huziwara, Tomas Shinobu Yamada, Lígia Maria Marçareli de Oliveira, Giselle de Carvalho Oliveira, William Victor Carlos Cândido
  • DAMPING SLEEVE AND ANCHORING METHOD
    Publication number: 20130168103
    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.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 4, 2013
    Applicant: PETROLEO BRASILEIRO S.A. -PETROBRAS
    Inventor: PETROLEO BRASILEIRO S.A.- PETROBRAS
  • ENZYMATIC PROCESS FOR SYNTHESIZING ESTOLIDES
    Publication number: 20130102041
    Abstract: This invention is a process for enzymatic synthesis of estolides through the reaction between stearic acid and methyl ricinoleate, using an immobilized lipase as the catalyst, in a solvent-free medium. This process prevents degradation of the product, reduces the formation of secondary products that generate color and odor in the lubricant, and allows recovery of the lipase and its subsequent reuse.
    Type: Application
    Filed: September 14, 2011
    Publication date: April 25, 2013
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Erika Cristina Goncalves Aguieiras, Claudia de Oliveira Veloso, Danielle de Oliveira Rosas, Marta Antunes Pereira Langone
  • PROCESS FOR THE PRODUCTION OF AVIATION BIOKEROSENE AND AVIATION KEROSENE COMPOSITION
    Publication number: 20130055624
    Abstract: The present invention relates to a process of obtainment of aviation biokerosene and a composition of aviation kerosene containing the aviation biokerosene thus produced. The process consists of simultaneously combining three basic conditions: raw material selection, processing conditions, and control of specific properties of the product. The composition is classified as a semisynthetic composition of aviation kerosene and may contain up to 20% by weight of aviation biokerosene, satisfying the limits determined in the international specifications for aviation kerosene.
    Type: Application
    Filed: April 5, 2011
    Publication date: March 7, 2013
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Jose Antonio Vidal Vieira, Mauro Iurk Rocha, Roberto Lopes Carvalho, Marcelo Vieira Alves
  • System and method for simultaneous sea drilling operations
    Patent number: 8387704
    Abstract: A system and method for carrying out simultaneous operations of assembling, dismantling, and maintaining equipment installed by an oil rig, using the tools, systems, and the areas available on the rig itself. The system includes two parallel and separated sustaining beams and two mobile bases supported on the beams to carry out the simultaneous operations. This system allows a method for simultaneously assembling two items of subsea equipment which are to be installed to be performed. Also, this system allows a method for simultaneously replacing and assembling subsea equipment to be performed. Additionally, the equipment can be lowered or recovered using either a derrick and pipe string or a winch and steel cable.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 5, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventor: Roberto Rodrigues
  • Process for hydroconversion of a mixture of organic oils of different origins
    Patent number: 8366910
    Abstract: 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: Grant
    Filed: April 26, 2007
    Date of Patent: February 5, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Jefferson Roberto Gomes, Raissa Maria Cotta Ferreira da Silva, Rogerio Oddone, Adriana de Souza Ferreira, Nelmo Furtado Fernandes
  • FREESTANDING HYBRID RISER SYSTEM
    Publication number: 20130022406
    Abstract: A free standing hybrid riser system including: a vertical section including an upper strengthening joint; a buoyant unit; a top riser assembly (TRA) below the buoyant unit and connected at a first connection point on the TRA to the upper strengthening joint; the buoyant unit is connected to the TRA at a second connection point on the TRA; and a flexible jumper is connected to the TRA at a third connection point on the TRA; wherein a first bending moment is applied about the first connection point to the TRA by the buoyant unit, and a second bending moment is applied about the first connection point to the TRA by the flexible jumper, wherein the first and second bending moments oppose each other.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 24, 2013
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Francisco Edward ROVERI, Jose Mauncio Teixeira da Gama LIMA
  • Multiphase multifunctional reactor
    Patent number: 8357342
    Abstract: A multiphase multifunctional reactor, system and method is described which has the capacity to effect extractive oxidation of sulfur and nitrogen compounds and unstable unsaturated compounds that are present in raw hydrocarbon streams, in such a way that the reaction conditions are adjusted and avoid losses of yield of the treated hydrocarbon in the stages of the extraction and/or absorption. The objective is achieved by means of the conception of a reactor which comprises a column divided into five sections which can be classified as two reaction sections (1, 2) two decantation sections (3, 4) and an inert gas section (5) under pressure.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: January 22, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Wladmir Ferraz de Souza, Adriana Moret Borges, Jose Antonio Vidal Vieira
  • Liquid-liquid extraction process for the purification of estolides for use as lubricants
    Patent number: 8350068
    Abstract: A process is described for the purification of estolides for subsequent use as lubricants. This purification process comprises the removal of free fatty acids present in the estolide by liquid-liquid extraction using an alcohol, preferably ethanol or methanol, as solvent, where the total acid number of the estolide after purification is less than 1 mg KOH/g of sample, which endows it with characteristics of oxidation stability suitable for its use as a lubricant.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: January 8, 2013
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Danielle de Oliveira Rosas, Bauer Costa Ferrera, Denise Diniz Leite
  • HIGH-PERFORMANCE COMBUSTION DEVICE AND FLUID CATALYTIC CRACKING PROCESS FOR THE PRODUCTION OF LIGHT OLEFINS
    Publication number: 20120234727
    Abstract: The present invention relates to a combustion device for meeting the energy demand of processes for producing light olefins (ethylene and propene) in fluidized-bed catalytic cracking units. Said 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: Application
    Filed: September 14, 2010
    Publication date: September 20, 2012
    Applicant: 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, JR.
  • END FITTING FOR A FLEXIBLE RISER AND METHOD OF ASSEMBLY
    Publication number: 20120211975
    Abstract: The present invention relates to an end fitting of a flexible riser. The device makes it possible to carry out the assembly procedure without the need to bend the tensile armour. By means of the assembly procedure thereof, the technique proposed eliminates residual tension due to plastic deformation of the tensile armour and modifications in the microstructural properties of the steel, imposed by current end fittings and the corresponding techniques for assembling the same.
    Type: Application
    Filed: February 22, 2012
    Publication date: August 23, 2012
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: George Carneiro CAMPELLO, Marcos Carpigiani De Almeida
  • SCUTTLE FOR THE MONITORING AND INSPECTION OF A FLEXIBLE RISER
    Publication number: 20120211233
    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 armour 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 armour 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: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Applicant: PETROLEO BRASILEIRO S.A.- PETROBRAS
    Inventors: George Carneiro CAMPELLO, Sergio Ricardo Kokay Morikawa
  • RECEIVING LATERAL WELLBORE AND METHOD FOR IMPLANTING SAME
    Publication number: 20120205159
    Abstract: The present invention relates to an innovative wellbore concept, which gives experts a new alternative enabling them to analyse the economic viability of a deposit. The new structural arrangement for oil wells involves the utilisation of equipment that is already available at the wells (of dry or wet completion), and the exploitation of a remote neighbouring field by mechanical and hydraulic interconnection. The implementation method uses already known drilling tools and techniques, but renders their applicability advantageous, since it ensures production from deposits or wells that are not considered viable, by using resources that are already available and in operation.
    Type: Application
    Filed: January 6, 2012
    Publication date: August 16, 2012
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Carlos Alberto Teles Borges, Elias Saad Saade, Mateus Albernaz Lemos
  • PUMPING MODULE AND SYSTEM
    Publication number: 20120199359
    Abstract: A subsea pumping system using a subsea module is installed on the sea bed, preferably away from production wells and intended to pump hydrocarbons having a high associated gas fraction produced by subsea production wells to the surface. The system achieves an advantage by the design of a pumping module (PM) which is linked to pumping equipment already present in a production well and which includes: an inlet pipe (2), separator equipment (3), a first pump (4) and a second pump (8). Another advantage of the subsea pumping system for the production of hydrocarbons with a high gas fraction is that, when oil is pumped from the production well (P), the well pump (13) increases the energy of the fluid in the form of pressure and transmits this increase in energy in the form of an increase in suction pressure in the second pump (8) of the subsea module (PM).
    Type: Application
    Filed: March 2, 2012
    Publication date: August 9, 2012
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: Roberto RODRIGUES
  • Process for the fermentative production of ethanol from solid lignocellulosic material comprising a step of treating a solid lignocellulosic material with alkaline solution in order to remove the lignin
    Patent number: 8232082
    Abstract: The present invention relates to a process for obtaining fuel ethanol by using agricultural and agroindustrial waste materials composed of lignocellulose, and especially sugar cane bagasse. These residues have significant contents of carbohydrates in the form of polysaccharides (cellulose and hemicellulose), which can be hydrolyzed by chemical and enzymic processes. The hemicellulose fraction is submitted to mild hydrolysis with sulphuric acid, and the solid material from this hydrolysis is submitted to a process of saccharification (enzymic hydrolysis) with simultaneous rapid alcoholic fermentation under conditions which allow a significant increase in conversion to alcohol in a greatly shortened time.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 31, 2012
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Lidia Maria Melo Sant'anna, Nei Pereira, Jr., Absai Da Conceicao Gomes, Mariana Penuela Vasques
  • GAS LIFT NOZZLE VALVE
    Publication number: 20120186662
    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: Application
    Filed: May 13, 2010
    Publication date: July 26, 2012
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventor: Alcino Resende De Almeida
  • Chromium and nickel catalysts for oligomerization recations and process for obtaining alpha-olefins using said catalysts
    Publication number: 20120178939
    Abstract: The present invention refers to the synthesis of precatalysts and the use of such precatalysts in ethylene oligomerization reactions for the selective production of alpha-olefins. More specifically, it refers to the preparation and use of coordination compounds containing polydentate ligands comprising Group 6 and 10 transition metal compounds, in particular chromium (III) and nickel (II). Such catalytic precursors present high catalytic activity and selectivity for the production of alpha-olefins.
    Type: Application
    Filed: September 30, 2011
    Publication date: July 12, 2012
    Applicants: UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL - UFRGS, PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Osvaldo de Lazaro Casagrande Junior, Carlos Rene Klotz Rabello, Lucilene Losch de Oliveira, Ana Helena Dias Pereira dos Santos, Roberta Campedelli, Adao Lauro Bergamo
  • Apparatus and method for loading particulate material into vertical tubes
    Patent number: 8182758
    Abstract: An apparatus and method for loading particulate material in a vertical tube comprising at least one impact-absorbing module, a central axis and a sustaining wire to position the apparatus suspended in the interior of the tube in such a way as to allow loading and uniform distribution of all the material loaded in the tube and the method of loading that uses the apparatus is also described.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: May 22, 2012
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Francisco de Assis Oliveira, Ricardo Lopes Matriciano
  • Drive system and actuation method
    Patent number: 8142729
    Abstract: The present invention relates to a drive system (100) applied to the mechanism for discharging solids and regulating flows of a reactor vessel (300), reducing the degree of freedom between the components of the distributor element, increasing the definition of its movements and consequently providing more uniform and precise flow discharge. The drive system (100) comprises an actuator piston (101) affixed to a fixed support (400), a transmission rod (103) and a drive rod (106) connected to the scrapper rings (301). The transmission (103) and drive (106) rods are connected by a vertical joint (105).
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 27, 2012
    Assignee: Petróleo Brasileiro S.A.-Petrobras
    Inventor: Valmor Neves Vieira