Patents by Inventor Eduardo Cardoso De Melo Guerra
Eduardo Cardoso De Melo Guerra 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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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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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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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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Patent number: 7393435Abstract: Described is an injection charging system in delayed coking drums (11), comprised of at least two injection pipes (11a) connected to the sidewall of a coking drum (1) in its tricone portion, and fed by a circular distributor crown, in order to allow coupling or decoupling of the large lower flange (11e) of the coking drum (1) without needing to disconnect the injection system (11) from the pumping and heating system (10).Type: GrantFiled: December 16, 2004Date of Patent: July 1, 2008Assignee: Petroleo Brasiliero S.A.Inventor: Eduardo Cardoso De Melo Guerra
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Publication number: 20080116117Abstract: 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 said 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: ApplicationFiled: December 13, 2007Publication date: May 22, 2008Inventors: Emanuel Freire SANDES, Paulo Sergio Freire, Jose Geraldo Furtado Ramos, Aurelio Medina Dubois, Jose Mozart Fusco, Eduardo Cardoso de Melo Guerra, Wilson Kenzo Huziwara
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Patent number: 7332133Abstract: 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 said 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: April 1, 2004Date of Patent: February 19, 2008Assignee: 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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Publication number: 20040234425Abstract: 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.Type: ApplicationFiled: April 1, 2004Publication date: November 25, 2004Applicant: PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Emanuel Freire Sandes, Paulo Sergio Freire, Jose Geraldo Furtado Ramos, Aurelio Medina Dubois, Jose Mozart Fusco, Eduardo Cardoso de Melo Guerra, Wilson Kenzo Huziwara
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Patent number: 6743401Abstract: A distributor (9) for the equalization of flow rate of cyclones in closed cyclone systems installed in the interconnection of the cyclones of the disengager vessel of the gas-solid suspension of the fluid catalytic cracking (FCC) processes is described, that distributes the gases exiting the first stage cyclones so as to promote a desirable and uniform flow rate of said gases through said space, besides absorbing the relative movements between the cyclones caused by the differential thermal expansion. The distributor of the invention secures a homogeneous accommodation of the gas-solid suspension in a connecting pipe, allowing a uniform cyclone operation in the next stage, no matter the geometry of the riser-cyclone set or of the downer-cyclone set.Type: GrantFiled: May 7, 2001Date of Patent: June 1, 2004Assignee: Petroleo Brasileiro S.A.Inventor: Eduardo Cardoso De Melo Guerra
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Publication number: 20040071608Abstract: A distributor (9) for the equalization of flow rate of cyclones in closed cyclone systems installed in the interconnection of the cyclones of the disengager vessel of the gas-solid suspension of the fluid catalytic cracking (FCC) processes is described, that distributes the gases exiting the first stage cyclones so as to promote a desirable and uniform flow rate of said gases through said space, besides absorbing the relative movements between the cyclones caused by the differential thermal expansion. The distributor of the invention secures a homogeneous accommodation of the gas-solid suspension in a connecting pipe, allowing a uniform cyclone operation in the next stage, no matter the geometry of the riser-cyclone set or of the downer-cyclone set.Type: ApplicationFiled: May 7, 2001Publication date: April 15, 2004Applicant: PETROLEO BRASILEIRO S.A.- PETROBRASInventor: Eduardo Cardoso De Melo Guerra
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Publication number: 20010003575Abstract: 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: November 29, 2000Publication date: June 14, 2001Inventors: 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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Patent number: 6197266Abstract: A cyclone leg sealing system is composed of one or more intermediate solids-accumulation chambers delimited by two sealing valves and in series, the function of the valves being to prevent the back-flow of particulate material towards the inside of the separating cyclones in fluid catalytic cracking (FCC) processes, thereby ensuring the maximum efficiency of the separating effected by the cyclone.Type: GrantFiled: October 28, 1998Date of Patent: March 6, 2001Assignee: Petroleo Brasileiro S. A.-PetrobrasInventors: Jose Mozart Fusco, Eduardo Cardoso De Melo Guerra, Valmor Neves Vieira
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Patent number: 5800680Abstract: The present invention relates to a system for fastening and sealing the flanges of the inlets of pressure vessels operating under extreme temperature conditions and with frequent opening/closing cycles, as is the case of coking vessels (5), consisting of an assembly of a flange of the tongue (1) and groove (2) type, a C-clamp (3), and a soft compression gasket (4). Such a system offers total remote control of the opening of the vessel inlets, resulting in greater safety, less unit downtime, and lower operating costs. The invention also relates to a method for opening inlets which results therefrom.Type: GrantFiled: September 6, 1996Date of Patent: September 1, 1998Assignee: Petroleo Brasileiro S.A. - PetrobrasInventor: Eduardo Cardoso De Melo Guerra
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Patent number: 5665949Abstract: A process for separating catalyst particles in the catalytic cracking of reacted hydrocarbons includes feeding the reacted hydrobarbons to an unconfined cyclone device made up of a diplegless cyclone opening directly into a large volume separator vessel downwardly through a mouth and upwardly through the annular space between concentric pipes. The concentric pipes are connected to the other components of the system as well as the hydrocarbon fluid catalytic cracking process carried out in the system.Type: GrantFiled: July 26, 1995Date of Patent: September 9, 1997Assignee: Petroleo Brasileiro S.A. - PetrobrasInventors: Jose Mozart Fusco, Jose Geraldo Furtado Ramos, Valmor Neves Vieira, Eduardo Cardoso de Melo Guerra
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Patent number: 5569435Abstract: A system for separating catalyst particles in the catalytic cracking of reacted hydrocarbons includes an unconfined cyclone device made up of a diplegless cyclone opening directly into a large volume separator vessel downwardly through a mouth and upwardly through the annular space between concentric pipes. The concentric pipes are connected to the other components of the system as well as the hydrocarbon fluid catalytic cracking process carried out in the system.Type: GrantFiled: September 13, 1994Date of Patent: October 29, 1996Assignee: Petroleo Brasiliero S.A. - PetrobrasInventors: Jose M. Fusco, Jose Geraldo F. Ramos, Valmor N. Vieira, Eduardo Cardoso de Melo Guerra