Patents by Inventor Wilson Kenzo Huziwara
Wilson Kenzo Huziwara 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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Publication number: 20230294114Abstract: The present invention addresses to a third stage system with self-bleeding by means of the use of an internally or externally installed ejector with application in all multicyclone systems operating at positive pressure, whether for application in particulate abatement or protection systems of turbo-expanders or in industrial units that involve the need of recovering solid products carried by the process gas, aiming at eliminating the need for any additional separation systems using cyclones or filters to carry out the bleeding of the cyclone legs.Type: ApplicationFiled: July 19, 2021Publication date: September 21, 2023Inventors: Wilson Kenzo Huziwara, Rafael Diego Graczyk, Emanuel Freire Sandes
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Publication number: 20230235759Abstract: The present invention deals with a mechanical device with wide application in the reduction or elimination of severe slug or plug flow instabilities in horizontal or inclined gas-liquid multiphase flow pipes, which lead to a reduced operating capacity, mechanical risks of rupture due to repetitive efforts, and operational non-viability.Type: ApplicationFiled: December 16, 2022Publication date: July 27, 2023Inventors: Wilson Kenzo Huziwara, Jorge Roberto Duncan Lima, Evandro Meneguello Biggi, William Victor Carlos Candido, Roberto Gliese, Rafael Diego Graczyk
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Patent number: 8657932Abstract: 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: GrantFiled: June 25, 2009Date of Patent: February 25, 2014Assignee: Petroleo Brasileiro S.A.—PetrobrasInventors: Wilson Kenzo Huziwara, Celson Murilo Dos Santos, Rogério Michelan, Emanuel Freire Sandes
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Patent number: 8568669Abstract: 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: GrantFiled: October 29, 2010Date of Patent: October 29, 2013Assignee: Petroleo Brasileiro S.A.—PetrobrasInventors: 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.
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Patent number: 8492597Abstract: 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: GrantFiled: February 24, 2011Date of Patent: July 23, 2013Assignee: Petroleo Brasileiro S.A.-PetrobrasInventors: 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
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Patent number: 8231777Abstract: The present invention comprises a thermocatalytic cracking process for the production of diesel oil from a charge of vegetable origin made from seeds of oleaginous plants in refineries possessing at least two FCC reactors. At least one of such reactors processes heavy gas oil or residue under conventional conditions while at least one of such reactors processes the charge of vegetable origin made from seeds of oleaginous plants under conditions suitable, for production of diesel oil. Said process employs the same catalyst utilized in the fluid catalytic cracking process which, simultaneously, processes a conventional charge. The diesel, or biodiesel, oil produced by means of said process is of superior quality having a cetane number exceeding 40 given that the cracking reactions occur at low temperatures and the products obtained are less oxidized and consequently purer than products obtained by means of existing technology.Type: GrantFiled: June 17, 2008Date of Patent: July 31, 2012Assignee: Petroleo Brasileiro S.A.—PetrobrasInventors: Mauro Silva, Andrea de Rezende Pinho, Wilson Kenzo Huziwara, Amilcar Pereira da Silva Neto, Carlos Nagib Khalil, Julio Amilcar Ramos Cabral, Lúcia Cristina Ferreira Leite, Luiz Carlos Casavechia, Raul de Carvalho Silva
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Publication number: 20110295044Abstract: 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: ApplicationFiled: February 24, 2011Publication date: December 1, 2011Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Carlos René Klotz Rabello, Marlito Gomes Junior, Bernardo Galvão Siqueira, Raphael Bezerra de Menezes, Wilson Kenzo Huziwara, Tomas Shinobu Yamada, Ligia Maria Marcareli de Oliveira, Giselle de Carvalho Oliveira, William Victor Carlos Candido
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Publication number: 20110226129Abstract: 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: ApplicationFiled: June 25, 2009Publication date: September 22, 2011Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Wilson Kenzo Huziwara, Celso Murilo Dos Santos, Rogério Michelan, Emanuel Freire Sandes
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Patent number: 7988924Abstract: 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: GrantFiled: October 10, 2008Date of Patent: August 2, 2011Assignee: Petróleo Brasileiro S.A. - PetrobrasInventors: 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
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Patent number: 7972570Abstract: A distributor nozzle for a two-phase charge, to be used in fixed-bed reactors in order to increase the area over which the mixture is dispersed and to make its flow rate the same over the whole area of the bed in the reactor. The device includes a number of fixing bars and a deflector cone frustum. The deflector cones or cone frusta may have more than one angle in order to improve the distribution, and they have a number of apertures or slits and a number of vertical directing elements or a directing cage or frame to direct the stream of the two-phase charge in order to increase the area over which the mixture is dispersed and to make its flow rate the same over the entire area of the bed in the reactor.Type: GrantFiled: November 25, 2008Date of Patent: July 5, 2011Assignee: Petróleo Brasileiro S.A.—PetrobasInventors: Jose Antonio Vidal Vieira, Wilson Kenzo Huziwara, Donizeti Aurelio Silva Belato, Ademaro Marchiori, Jorge Roberto Duncan Lima, Fabricio Torres, Carlos Otavio Brito
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Publication number: 20110155642Abstract: 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: ApplicationFiled: December 28, 2010Publication date: June 30, 2011Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Wilson Kenzo Huziwara, Leonardo Fialho de Mello, Oscar Rene Chamberlain Pravia, Gustavo Torres Moure, Odnei Cesar Macalossi, Luiz Carlos Casavechia
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Patent number: 7967897Abstract: 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: GrantFiled: July 31, 2008Date of Patent: June 28, 2011Assignee: Petróleo Brasileiro S.A. - PetrobrasInventors: 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
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Patent number: 7967975Abstract: 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: GrantFiled: October 28, 2009Date of Patent: June 28, 2011Assignee: Petróleo Brasileiro S.A. - PetrobrasInventors: José Geraldo Furtado Ramos, Eduardo Cardoso de Melo Guerra, José Mozart Fusco, Aurélio Medina Dubois, Wilson Kenzo Huziwara, Waldir Pedro Martignoni
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Publication number: 20110104018Abstract: 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: ApplicationFiled: October 29, 2010Publication date: May 5, 2011Applicant: PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: 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.
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Patent number: 7867321Abstract: An improved cyclone system for disengaging solid and gaseous particles in fluid catalytic cracking (FCC) processes with reduced coke formation in disengager vessels, without favoring release of the disengaged catalyst into cyclones in subsequent stages, said system comprising legless cyclones 42 fitted with external collector pipes 43, is described. The collector pipes 43 optimize the purge of gases coming from the disengager vessel 49, reducing the time the hydrocarbons remain inside the disengager vessel 49, thus preventing overcracking and subsequent coke formation. Positioning of the external collector pipes 43 prevents release of the disengaged catalyst into cyclones in subsequent stages.Type: GrantFiled: December 13, 2007Date of Patent: January 11, 2011Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Emanuel Freire Sandes, Paulo Sérgio Freire, José Geraldo Furtado Ramos, Aurélio Medina Dubois, José Mozart Fusco, Eduardo Cardoso de Melo Guerra, Wilson Kenzo Huziwara
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Patent number: 7799285Abstract: A stripping apparatus is described for the gas-solid separation process in a fluidized bed in a counter-current flow of a stripping fluid. The apparatus includes sets of perforated baffle-plates with holes, fixed in series, alternating central and lateral plates inside a stripping chamber. The holes in the baffle-plates, in number, size and in circular or elliptical lay-out, are oriented in offset position in relation to the holes in the parallel and subsequent baffle-plates, reducing the damage of erosion on the perforated baffle-plates and optimizing stripping of the fluidized solid particles.Type: GrantFiled: April 10, 2007Date of Patent: September 21, 2010Assignee: Petróleo Brasileiro S.A.-PetrobrasInventors: Wilson Kenzo Huziwara, Claudio Maria de Lacerda Alvarenga Baptista, Henrique Soares Cerqueira, José Mozart Fusco
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Publication number: 20100071553Abstract: 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: ApplicationFiled: October 28, 2009Publication date: March 25, 2010Applicant: Petroleo Brasileiro S.A.- PetrobrasInventors: Jose Geraldo Furtado Ramos, Eduardo Cardoso de Melo Guerra, Jose Mozart Fusco, Aurelio Medina Dubois, Wilson Kenzo Huziwara, Waldir Pedro Martignoni
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Publication number: 20090142241Abstract: 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: ApplicationFiled: July 31, 2008Publication date: June 4, 2009Applicant: PETROLEO BRASILEIRO S.A. PETROBRASInventors: Wilson Kenzo HUZIWARA, Emanuel Freire Sandes, Luiz Carlos Casavechia, Jose Geraldo Ramos, Andrea de Rezende Pinho, Shelton Rolim Cercal, Aurelio Medina Dubois, Paulo Sergio Freire, Nelson Patricio Junior
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Publication number: 20090134063Abstract: 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: ApplicationFiled: October 10, 2008Publication date: May 28, 2009Applicant: PETROLEO BRASILEIRO S.A.Inventors: Wilson Kenzo Huziwara, Donizeti Aurelio Silva Belato, Jose Antonio Vidal Vieira, Angelo Jose Gugelmin, Shelton Rolim Cercal, Jorivaldo Medeiros, William Victor Carlos Candido, Ademaro Marchiori, Jorge Roberto Duncan Lima, Roberto Ruva, Marcelle Vensao Camargo Foschiani, Alinson Francisco Geros
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Patent number: 7531142Abstract: A device and a method for operating it for application in a vertical tube reactor with downward flow (downer), has the aim of ensuring the intimate mixing of the solid particulate catalyst with a reagent fluid. Homogeneous distribution of catalyst is due to the use of a plate having perforations. Said perforated plate normally allows the passage of a portion of the stream of catalyst. The other portion overflows the edge of the plate, flowing in the form of an annular curtain, near the inner surface of the surrounding tube of the device. After passing beyond the perforated plate, the curtain-flow undergoes a deflection produced by an annular screen, to be mixed with the stream originating from the orifices in the perforated plate. A hydrocarbon charge is injected below the perforated plate, forming a certain angle with respect to the direction of the downward flow of catalyst, by means of inlets distributed uniformly about cross sections of the surrounding tube.Type: GrantFiled: August 30, 2006Date of Patent: May 12, 2009Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Wilson Kenzo Huziwara, Waldir Pedro Martignoni, Mauro Silva, José Geraldo Furtado Ramos, Aurelio Medina Dubois, Paulo Sergio Freire