Patents Assigned to Petróleo Brasileiro S.A. - Petrobras
  • CATALYTIC CRACKING PROCESS OF A STREAM OF HYDROCARBONS FOR MAXIMIZATION OF LIGHT OLEFINS
    Publication number: 20110270009
    Abstract: A process is described for maximization of light olefins, preferably ethylene, by the catalytic cracking of feeds of saturated hydrocarbons, with molecular size in the range from 4 to 6 carbon atoms. The process uses a catalyst based on a zeolite of type ZSM-5 with low sodium content and modified with nickel, with concentration by weight of nickel, expressed in the form of oxide, in the range from 0.1% to 20% relative to the weight of zeolite in the catalyst, and operating conditions that involve a temperature between 400° C. and 650° C. and feed partial pressure between 0.1 and 1.0 MPa, so that the product recovered is rich in light olefins, with ethylene/propylene ratio in the range from 0.25 to 2.00.
    Type: Application
    Filed: November 23, 2009
    Publication date: November 3, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Aline Barbosa Junqueira de Souza, Marcelo Maciel Pereira, Lam Yiu Lau, Janaina Gorne, Andrea de Rezende Pinho
  • METHOD OF PRODUCTION OF LIGHT OLEFINS IN CATALYTIC CRACKING UNITS WITH ENERGY DEFICIENCY
    Publication number: 20110266197
    Abstract: The present invention relates to a method of production of light olefins, with the objective of maximizing the production of propylene and in particular ethylene by the use of a special catalyst containing high-silica zeolite, whose composition also includes a dehydrogenating metal, so as to generate light olefins and appreciable deposition of coke on the catalyst. Gains in selectivity for light olefins are observed, and at the same time the energy deficiency of catalytic cracking in petrochemical operations with light hydrocarbons is minimized, avoiding problems due to the need to burn heating oil in the catalyst regenerating section to make up for the energy deficit of the converter.
    Type: Application
    Filed: August 28, 2009
    Publication date: November 3, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Andrea de Rezende Pinho, Lam Yiu Lau
  • INTEGRATED PROCESS FOR THE MANUFACTURE OF OLEFINS AND INTERMEDIATES FOR THE PRODUCTIONS OF AMMONIA AND UREA
    Publication number: 20110250119
    Abstract: An integrated process for the manufacture of olefins and intermediates for the production of ammonia and urea, comprising an FCC reactor, a regenerator, a steam reforming unit, an air-separation unit, an ammonia production unit and a urea production unit, is described. This process makes it possible to minimize CO2 emissions to atmosphere, make use of heavy feedstocks of low added value (AR) for the production of light olefins, in addition to making maximum use of all the flows involved, thus increasing the energy efficiency achieved, all at the same time.
    Type: Application
    Filed: October 21, 2009
    Publication date: October 13, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Leonardo Fialho de Mello, Oscar Rene Chamberlain Pravia, Gustavo Torres Moure
  • PROCESS FOR PRODUCTION OF AN ENZYMATIC PREPARATION FOR HYDROLYSIS OF CELLULOSE FROM LIGNOCELLULOSIC RESIDUES AND APPLICATION THEREOF IN THE PRODUCTION OF ETHANOL
    Publication number: 20110250652
    Abstract: The process of the present invention is based on the microbial production of enzymes from the growth of the fungus Penicillium funiculosum in a suitable culture medium with a cellulosic substrate. The process of the invention comprises in particular the fermentative treatment of a lignocellulosic substrate by means of a specially adapted fungus, for obtaining an enzymatic preparation capable of hydrolysing cellulose and hemicellulose for the production of ethanol.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 13, 2011
    Applicant: PETROLEO BRASILEIRO S.A.- PETROBRAS
    Inventors: Aline Machado de Castro, Lidia Maria Melo Santanna, Nei Pereira Junior, Absai Da Conceicao Gomes, Emerson Pires Menezes, Claudia Julia Groposo Silveira, Danuza Nogueira Moyses, Luiz Fernando Martins Bandeira, Roberto Nobuyuki Maeda
  • Process for obtaining a fertilizer with sustained release of phosphorus
    Patent number: 8034149
    Abstract: The present invention relates to obtaining a fertilizer with sustained release of phosphorus, enriched with other macro and micronutrients, which can be produced by pyrolysis of pyrobituminous shale, in combination with calcareous shale and with natural phosphatidic rocks. The invention presents a process for obtaining a solid fertilizer with sustained release of phosphorus, enriched with Ca, Mg, S, Si and micronutrients, by a combination of pyrolysis of a pyrobituminous shale at a temperature of 450-500° C., with the addition of calcareous shale and of a phosphatidic rock, which represents a promising innovation compared to the prior art, and will certainly serve to fill a gap in the availability of fertilizers permitted for use in agroecological systems.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: October 11, 2011
    Assignees: Petroleo Brasileiro S.A.-Petrobras, Empresa Brasileira de Pesquisa Agropecuaria-Embrapa
    Inventors: Luiz Alberto Medeiros Novicki, Valmor Neves Vieira, Waldemar Jiro Torii, Clenio Nailto Pillon, Walkyria Bueno Scivittaro
  • Process for the production of biodiesel
    Patent number: 8034130
    Abstract: The present invention relates to a process for the production of alkyl esters of carboxylic acids for use as biodiesel starting from the reaction of transesterification of triglycerides originating from oils and fats of vegetable or animal origin, which can be used individually or in mixtures with one another in any proportions, employing heterogeneous catalysis by means of protonated lamellar titanate catalysts in nanostructured form, and said forms can comprise, among in other forms, nanotubes, nanofibres or nanosheets.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: October 11, 2011
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: Márcio de Figueiredo Portilho, Edisson Morgado, Jr., Marco Antonio Santos De Abreu
  • CYCLONE SEPARATOR AND SEPARATION METHOD
    Publication number: 20110226129
    Abstract: A separator comprises a separation chamber (1) with at least one inlet (11a) in its upper part, a solids outlet (12) in its lower part and two outlet pipes (2 and 3) for fractions of gas. Also described is a method which the separator uses, with the fractions of gas being sucked out in two separation zones generated inside the chamber, one with reverse flow and the other with unidirectional flow.
    Type: Application
    Filed: June 25, 2009
    Publication date: September 22, 2011
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wilson Kenzo Huziwara, Celso Murilo Dos Santos, Rogério Michelan, Emanuel Freire Sandes
  • BIODIESEL PURIFICATION METHOD
    Publication number: 20110209981
    Abstract: The present invention concerns a process for purification of biodiesel obtained from castor seed oil for the purpose of promoting the efficient separation of the glycerine fraction formed during the transesterification reaction of a mixture of long-chain triglycerides derived from the oil in the presence of ethanol and an alkaline catalyst. The invention concerns the application of the method of electrostatic separation to biodiesel from castor oil in order to separate the glycerine from the stable emulsion then formed, in relatively short spaces of time.
    Type: Application
    Filed: September 3, 2009
    Publication date: September 1, 2011
    Applicant: PETROLEO BRASILEIRO S.A-PETROBRAS
    Inventors: Carlos Nagib Khalil, Rodolfo de Vico, Andre Manoel Goja Ferreira, Bianca Machado da Silva Ferreira, Carlos Alberto Dias Da Silva
  • ADDITIVE WITH MULTIPLE SYSTEM OF ZEOLITES AND METHOD OF PREPARATION
    Publication number: 20110207984
    Abstract: Additives for mixing with the catalyst inventory in process units for fluid catalytic cracking (FCC) for maximizing the production of LPG and light olefins are described. Said additives comprise a matrix that incorporates a zeolite of type MFI, preferably zeolite ZSM-5, a zeolite of type Y, and a source of phosphorus, in a single particle. Mixing of the additive in proportions from 1.0 to 40 wt. % with the equilibrium catalyst of an FCC unit maximizes the production of LPG and light olefins, chiefly propylene.
    Type: Application
    Filed: September 18, 2009
    Publication date: August 25, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marlon Brando Bezerra De Almeida, Alexandre de Figueiredo Costa, Lam Yiu Lau, Sergio Augusto Santos Rodrigues, Marcelo Andre Torem
  • PROCESS FOR TREATMENT OF WATER/OIL EMULSIONS
    Publication number: 20110186515
    Abstract: A process for the treatment of water/oil (W/O) emulsions is described which includes the addition of an ionic liquid, under heating, to a water/oil emulsion containing between 0.5% and 85% of water per volume as a dispersion phase, until the concentration of the ionic liquid in the emulsion remains within the range of 0.01 ?L/g to 100 ?L/g. The ionic liquid used is a salt of a general C+ A? formula in a liquid state at temperatures below 150° C., where A? is an anion and C+ is a cation, which has at least a hydrophobic alkyl chain connected to a cation group. The heating method includes conventional heating and heating via microwaves. In the heating via microwaves, the salts of the general C+ A? formula present synergic behavior in separation efficiency in relation to conventional heating.
    Type: Application
    Filed: December 28, 2010
    Publication date: August 4, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Regina Celia Lourenco GUIMARÂES, Bianca Machado da Silva FERREIRA, Maria de Fatima Pereira DOS SANTOS, Ricardo Andre GUARNIERI, Montserrat Fortuny HEREDIA, Cláudio DARIVA, Alexandre Ferreira SANTOS, Rita de Cássia Bomfim LEMOS, Lisiane dos Santos FREITAS
  • Device and process for distribution of mixed charges onto fixed beds of catalyst in descending-flow reactors
    Patent number: 7988924
    Abstract: The present invention relates to a device and respective process for distribution of mixed charges comprising a flat tray in the form of a disc drained by a series of drainage tubes located above the surface of fixed beds of catalysts, capable of promoting the homogenisation and distribution of charges by means of said device. Such drainage tubes mounted in said manner have the objective of restricting and reorienting the flow of mixed charges, multiplying the points whereon they fall, principally of the liquid phase, onto said beds of catalysts. For the purpose of doing so said drainage ducts, being segments of tubes, distributed on the entire surface of said tray possess caps affixed at the upper extremity thereof impeding the direct flow of charge onto the bed of catalyst, creating a reservoir of liquid on the tray, subsequently being drained down such device in a more controlled manner.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: August 2, 2011
    Assignee: Petróleo Brasileiro S.A. - Petrobras
    Inventors: Wilson Kenzo Huziwara, Donizeti Aurelio Silva Belato, Jose Antonio Vidal Vieira, Angelo Jose Gugelmin, Shelton Rolim Cercal, Jorilvaldo Medeiros, William Victor Carlos Candido, Ademaro Marchiori, Jorge Roberto Duncan Lima, Roberto Ruva, Marcelle Vensão Camargo Foschiani, Alinson Francisco Geros
  • Tropicalized petroleum sector cut-off valve gear box system and decontamination method for gear boxes
    Patent number: 7987946
    Abstract: A tropicalized petroleum sector cut-off valve gear box system and its respective method of application are described. The system involves the conversion of any gear box model with cut-off valves used in the petroleum industry, into tropicalized gear boxes, so as to allow total preventative maintenance with no need for interruptions on production lines.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: August 2, 2011
    Assignee: Petróleo Brasileiro S.A. -Petrobras
    Inventor: Osmar Jose Leite da Silva
  • PROCESS FOR PRODUCTION OF LIPASES BY GENETIC MODIFICATION OF YEAST
    Publication number: 20110183400
    Abstract: The present invention relates to the construction of optimized synthetic lipase gene expression vectors for the high level expression of recombinant lipases in the yeast. The invention provides an enzymatic approach to the industrial processing of by-products resulting from biodiesel production.
    Type: Application
    Filed: December 17, 2010
    Publication date: July 28, 2011
    Applicant: PETROLEO BRASILEIRO S.A.- PETROBRAS
    Inventors: Aline Machado de Castro, Juliana Vaz Bevilaqua, Denise Maria Guimarães Freire, Fernando Araripe Goncalves Torres, Lídia Maria Melo Sant'anna, Melissa Limoeiro Estrada Gutarra, Caroline Alexandre Barbosa, Rodrigo Volcan Almeida, Reginaldo Ramos de Menezes, Aline Gomes Cunha
  • COMPOSITION OF PACKER FLUID FOR DEEP AND ULTRA-DEEP WELLS IN ENVIRONMENTS CONTAINING CO2
    Publication number: 20110160100
    Abstract: A composition of a packer fluid which comprises biodiesel glycerin to be used in deep and ultra-deep wells in environments containing CO2 and a process of using the same. This fluid presents a specific mass of at least 1.15 g/cm3, adequate viscosity for pumping at less than 2,000 cP and corrosive potential of up to 3 mm in 30 years. In addition to this, the composition of this packer fluid is compatible with the elastomers normally employed and does not degrade when exposed to temperatures lower than 100° C. The packer fluid is injected into an oil well as part of a well packer process.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Marcia Cristina Khali OLIVEIRA, Alexandre Zacarias Ignàcio PEREIRA, Ilson Palmieri BAPTISTA, Carlos José Bandeira de Mello JOIA
  • FLUID CATALYTIC CRACKING PROCESS WITH REDUCED CARBON DIOXIDE EMISSION
    Publication number: 20110155642
    Abstract: This invention concerns a fluid catalytic cracking (FCC) process with reduced carbon monoxide emission which modifies the regeneration phase of the spent catalyst by using pure oxygen without the need for dilution when burning coke adhering to the catalyst. In addition, this invention improves the reconditioning stage of the catalyst, incorporating a reconditioner supplementary to a conventional reconditioner which employs nitrogen as a carrier gas in the reconditioning of the already regenerated catalyst.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Applicant: PETROLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wilson Kenzo Huziwara, Leonardo Fialho de Mello, Oscar Rene Chamberlain Pravia, Gustavo Torres Moure, Odnei Cesar Macalossi, Luiz Carlos Casavechia
  • PROCESS FOR REDUCING NAPHTHENIC ACIDITY & SIMULTANEOUS INCREASE OF API GRAVITY OF HEAVY OILS
    Publication number: 20110155558
    Abstract: A process for API GRAVITY enrichment and the reduction of naphthenic acidity of petroleum, heavy petroleum, extra-heavy oil and oil mixtures and their fractions in the presence of microwave-absorbing materials, preferentially those which absorb radiation in localized sites forming nanoreactors, pure or in mixtures such as spent hydrotreatment catalysts. The process is characterized by causing an increase in the API GRAVITY of the petroleum or its mixtures, performing the cracking of the heavier fractions present in the petroleum and reducing the concentration of naphthenic acids present in the processed petroleum. This process is also characterized by operating at a relatively low temperature and pressure with an operating range that enables a simplified union of the microwave source with a petroleum enrichment industrial reactor.
    Type: Application
    Filed: December 29, 2010
    Publication date: June 30, 2011
    Applicant: PETROLEO BRASILEIRO S.A.-PETROBRAS
    Inventors: Mauri Jose Baldini Cardoso, Elizabeth Marques Moreira, Mauricio Souza de Alencar, Claudio Roberto Ribeiro da Silva
  • Sealing system for cyclone leg
    Patent number: 7967975
    Abstract: A system for sealing the legs of two stages of cyclones in series used in fluid catalytic cracking (FCC) processes, comprising a terminal leg configuration, which is devoid of moving parts and makes use of a long-radius curve, and which changes the flow direction of the descending mass flow of catalyst in dense phase into a plane orthogonal to the ascending gaseous flow. This prevents the entry of gaseous phase inside the leg, and promotes efficient sealing and preventing the “packing-down” of the dense bed of particulates.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: June 28, 2011
    Assignee: Petróleo Brasileiro S.A. - Petrobras
    Inventors: José Geraldo Furtado Ramos, Eduardo Cardoso de Melo Guerra, José Mozart Fusco, Aurélio Medina Dubois, Wilson Kenzo Huziwara, Waldir Pedro Martignoni
  • System and process for the separation of suspensions of spent catalysts and hydrocarbons formed in a fluid catalytic cracking unit with multiple ascending flow reaction tubes
    Patent number: 7967897
    Abstract: The present invention relates to a system for the separation of suspensions of spent catalysts and hydrocarbons formed in an FCC unit with multiple ascending flow reaction tubes, comprising interconnections between each of the ascending flow reaction tubes and the separator vessel, each interconnection also comprises two sections. The outside sections of the separator vessel are inclined and are connected to a single vertical section, which penetrates into the interior of the separator vessel, and which has at its lower end an open device for draining the spent catalyst from the suspensions separated in this sector. In the same vertical section, at the end of its internal part at the separator vessel, a series of two sets of cyclones are installed, the first set containing cyclones without sealing legs, and the second set containing conventional cyclones of the first stage.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: June 28, 2011
    Assignee: Petróleo Brasileiro S.A. - Petrobras
    Inventors: Wilson Kenzo Huziwara, Emanuel Freire Sandes, Luiz Carlos Casavechia, José Geraldo Furtado Ramos, Andrea De Rezende Pinho, Shelton Rolim Cercal, Aurelio Medina Dubois, Paulo Sergio Freire, Nelson Patricio Junior
  • Method for recycling and exploitation of the glycerin obtained in the production of biodiesel
    Patent number: 7955402
    Abstract: A method to exploit the glycerin obtained as a by-product of the industrial process to produce biodiesel inside or out of the industrial production unit, providing a reduction in the environmental liability that may be caused by an excess in the production of glycerin that cannot be exploited for industrial use. The referenced method uses recycling of the glycerin obtained through industrial process to produce biodiesel, using a process basically consisting of four stages: a) extracting glycerin produced as a by-product of the industrial process for producing biodiesel; b) hydrogenation of said n-propanol glycerin, c) recycling of the n-propanol thus obtained to be added to a mixture of alcohols; and d) transesterfication of the n-propanol mixture added to the alcohol mixture, together with raw material triglycerides from renewable sources in order to obtain biodiesel.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 7, 2011
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Carlos Rene Klotz Rabello, Bernardo Galvão Siqueira, Raphael Bezerra De Menezes
  • DEVICE FOR COOLING AND DISTRIBUTING MIXED CHARGES ON FIXED CATALYST BEDS
    Publication number: 20110104018
    Abstract: This invention relates to a device for cooling and distributing mixed charges on fixed catalyst beds for use in the cooling zone of descending flow reactors which comprises a flat tray fitted with collector and distributor tubes for liquid superimposed upon and connected to another flat tray of similar design to the upper tray. The device, which is of smaller size in comparison with other commercially available devices, is extremely simple to install industrially and compact, and has as its main characteristic the efficiency with which it promotes reduction of the temperature of the reaction medium when it receives the cooling fluid within the catalytic reactor.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 5, 2011
    Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRAS
    Inventors: Wilson Kenzo HUZIWARA, Donizeti Aurelio Silva Belato, Jorge Roberto Duncan Lima, Rogério Michelan, William Victor Carlos Candido, Angelo Jose Gugelmin, Paulo Sérgio Freire, Nelson Patrício, JR.