Disperser Feeds Into Permeable Mass, E.g., Checkerwork, Etc. Patents (Class 431/170)
  • Publication number: 20110171588
    Abstract: The invention relates to a device and to an improved method for chemical looping combustion of at least one liquid hydrocarbon feed, comprising: mixing the liquid feed with an atomization gas so as to feed it into a metal oxide transport zone (2), upstream from combustion zone (3), through atomization means (6) allowing to form finely dispersed liquid droplets in the atomization gas; spraying the liquid feed in form of droplets into contact with at least part of the metal oxides in transport zone (2), the operating conditions in transport zone (2) being so selected that the superficial gas velocity after spraying the liquid feed is higher than the transport velocity of the metal oxide particles; sending all of the effluents from transport zone (2) to a combustion zone (3) allowing reduction of the metal oxides, said combustion zone (3) comprising at least one dense-phase fluidized bed. The invention can be advantageously applied to CO2 capture and energy production.
    Type: Application
    Filed: September 21, 2009
    Publication date: July 14, 2011
    Inventors: Thierry Gauthier, Ali Hoteit, Ann Forret
  • Publication number: 20110146264
    Abstract: The invention provides an apparatus for generating heat and transferring the heat to a heater head of an external combustion engine, preferably, a Stirling engine. Fuel and air are introduced into a combustion chamber and mixed to form an air/fuel mixture. The air/fuel mixture is combusted over a combustion catalyst positioned in physical contact with a heat spreader, which itself is positioned in physical contact with a heat acceptor surface. The heat acceptor surface is secured in thermal communication with the heater head. Depending upon the design of the heater head, heat flux from the heat acceptor surface into the heater head may occur radially or non-radially.
    Type: Application
    Filed: January 6, 2010
    Publication date: June 23, 2011
    Inventors: Subir Roychoudhury, Benjamin D. Baird, Richard T. Mastanduno, Bruce Crowder, Paul Fazzino
  • Patent number: 7857616
    Abstract: A burner apparatus utilizes a reticulated member to promote mixing of a fuel and oxidizer mixture. A plurality of exit ports, disposed on a wall or surface encapsulating the reticulated member, defines exit streams of the mixture that produces flames upon combustion. The burner apparatus have high heating rates and turndown ratios of at least about 18:1.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: December 28, 2010
    Assignee: TIAX LLC
    Inventors: Philip C. Carbone, Matthew E. Brekken, Peter F. Pescatore, Charles E. Marble, Matthew Rhodes
  • Patent number: 7819656
    Abstract: A furnace, firing pattern and method of operating a heater that employs a combination of hearth burners and wall burners for the cracking of hydrocarbons is described. The firing pattern leads to improvements in the uniformity of the coil metal temperatures and vertical heat flux profiles over the firebox elevation. The hearth burners operate with a stoichiometric excess of air while the wall burners operate with less than the stoichiometric amount of air.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: October 26, 2010
    Assignee: Lummus Technology Inc.
    Inventors: Peter R Ponzi, Francesco Bertola, Robert J Gartside
  • Publication number: 20100242815
    Abstract: A sealpot for a combustion power plant includes a downcomer standpipe which receives solids of the combustion power plant, a bed including a first end and a second opposite end, the first end connected to the downcomer standpipe, a discharge standpipe disposed at the second opposite end of the bed, and an orifice plate disposed between the bed and the discharge standpipe separating the discharge standpipe from the bed. The orifice plate includes apertures disposed at a height above the bed which allow transport of fluidized solids and gas through the orifice plate.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: ALSTOM TECHNOLOGY LTD
    Inventors: John H. Chiu, Bard C. Teigen
  • Publication number: 20100227286
    Abstract: A portable catalytic combustion heater, wherein fuel vapor (11) and air (10) are supplied to a catalyst (6) which promotes the flameless combustion of fuel and releases that. The fuel is supplied as a liquid, passes through a selectively permeable membrane (8) such as fuel vapor exits the membrane and is fed to the catalyst (6). Additional features include porous supports and means of enhancing and diminishing the catalytic rate of combustion and controlling the heat output.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 9, 2010
    Inventors: Robert G. Hockaday, Patrick S. Turner, Zachary R. Bradford, Marc D. DeJohn, Carlos J. Navas, Heathcliff L. Vaz
  • Patent number: 7762806
    Abstract: An afterburner device and a method for operating an afterburner device, especially for chemical reformers for obtaining hydrogen, for making heat available from fuels and/or residual gases from a reforming process and/or a fuel cell process. In this context, heat is supplied in a controlled manner from recirculated combustion gases to a first housing and/or a combustion chamber situated in it and at least in part filled with heat resistant, open-pored foamed ceramics. The regulation takes place, for instance, based on a temperature recorded in the combustion chamber using an infrared light measurement.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: July 27, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Guenter Hoenig, Frank Miller
  • Patent number: 7723257
    Abstract: Hydrocarbon transformations through radical reaction are carried out in presence of: a carbon nano/meso precursor, an aluminium containing support, and a lanthanide catalyst deposited on said aluminium containing support.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: May 25, 2010
    Inventor: Dominique Bosteels
  • Patent number: 7717105
    Abstract: A gas radiation burner for improving the efficiency of burning by promoting mixing of fuel gas and air is disclosed. The gas radiation burner includes a gas supply member for injecting gas, at least one mixing pipe for suctioning air along with the gas injected from the gas supply member to produce mixture gas and injecting the produced mixture gas, a burner pot for receiving the mixture gas supplied from the mixing pipe, a burner mat mounted at a top of the burner pot and adapted to emit radiation heat that is generated as the mixture gas supplied from the burner pot burns on the burner mat, and a burner housing located on a top of the burner mat and defining a burning chamber therein. The mixing pipe is connected to a predetermined position of a lateral portion of the burner pot such that the mixture gas supplied from the mixing pipe flows along an inner peripheral surface of the burner pot.
    Type: Grant
    Filed: January 4, 2007
    Date of Patent: May 18, 2010
    Assignee: LG Electronics Inc.
    Inventors: Dae Rae Lee, Jung Wan Ryu, Dae Bong Yang, Young Soo Kim, Yang Ho Kim
  • Patent number: 7717700
    Abstract: The present invention relates to a hybrid burner (1) for a combustor (7), in particular of a power plant, comprising a housing (2), in which a full oxidation catalyst (9) and a partial oxidation catalyst (10) are arranged. An inlet side of the housing (2) is connected to at least one oxidizer supply (3) and to at least one fuel supply (4, 5). An outlet side of the housing (2) is connected to a combustion chamber (7).
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: May 18, 2010
    Assignee: Alstom Technology Ltd.
    Inventors: Richard Carroni, Timothy Griffin
  • Patent number: 7713056
    Abstract: A catalytic combustor is configured to accelerate the combustion processing of anode off gas in the combustor to reduce the amount of unburned hydrogen discharged to the outside of the combustor. Anode off gas and cathode off gas discharged from the fuel cell are fed into the catalytic combustor and combusted with a catalyst. Ventilation air is supplied from inside of the fuel cell is also supplied to the catalytic combustor. A portion of the catalytic combustor located upstream of the catalyst inside is divided into an upper flow path and a lower flow path by a partitioning plate and a gas flow passage is provided upstream of the upper and lower flow paths. The cathode off gas is supplied to the gas flow passage.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: May 11, 2010
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Karuki Hamada, Tadashi Shoji, Nobuo Sakiyama
  • Patent number: 7708553
    Abstract: This invention discloses a portable catalytic combustion heater. Fuel vapor and air are supplied to a catalyst which promotes the flameless combustion of the fuel, releasing heat. The fuel is supplied as a liquid, passes through a selectively permeable membrane such that fuel vapor exits the membrane and is fed to the catalyst. Additional features such as porous supports and means of enhancing and diminishing the catalytic rate of combustion and controlling the heat output are also shown. This invention can be used to heat apparel, blankets, food, dwellings, containers, machinery, insect attractants, humidifiers, and perfume generators.
    Type: Grant
    Filed: October 9, 2002
    Date of Patent: May 4, 2010
    Assignee: Vacca Inc.
    Inventors: Robert G. Hockaday, Patrick S. Turner, Zachary R. Bradford, Marc D. DeJohn, Carlos J. Navas, Heathcliff L. Vaz
  • Publication number: 20100092898
    Abstract: The present invention comprises a method and reactor of chemical looping combustion involving at least two gases in a reactor in which: said at least two gases are conveyed to a reactor fluid inlet centre which is divided in at least two sectors; said at least two gases flow radially outward into an oxygen carrier bed that surrounds said fluid inlet center, said oxygen carrier bed comprising an active material, in which at least one reaction takes place between said active material and said at least two gases; effluents from said at least one reaction are conveyed to an outer compartment of the reactor, said compartment being divided in two sections by means of two radially extending partition walls, said fluid inlet centre, said oxygen carrier bed and said outer compartment are rotating relative to each other.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 15, 2010
    Applicant: SINVENT AS
    Inventors: Ivar Martin Dahl, Richard Blom
  • Patent number: 7628610
    Abstract: A method and device for improved efficiency in thermal oxidation is presented which uses a cyclonic flame to combust a stream of hydrocarbons drawn to the flame source by a pressure differential. The improved burner and method are particularly suited for combusting volatile organic compounds that are a derivative result of another waste management process mechanically attached to a thermal oxidizer. The improved burner is formed by configuring a burner basket into a conical shape with openings that allow a combustible gas to travel along the interior of the basket frame. The gas travels spirally within the basket frame as it is assisted by forced air and when ignited, creates a cyclonic flame effectively combusting material such as volatile organic compounds that are manipulated into contacting the flame.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: December 8, 2009
    Assignee: Simeken, Inc.
    Inventors: Michael W. Gehring, Juan Antonio Caballero, James Sipprelle, William Sweet
  • Patent number: 7618255
    Abstract: A catalytic combustion apparatus is equipped with a reactor for catalytically burning a gas to be treated containing a combustible organic compound, which further comprises a condensate forming means for condensing a part of a gas after reaction in the reactor, to form a condensate, and a pH measuring means for measuring a pH of the resultant condensate. It is preferred that the catalytic combustion apparatus still further comprise a temperature adjusting means for adjusting a temperature of at least a catalyst-packed portion of the reactor based on data measured by the pH measuring means.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: November 17, 2009
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hideyasu Takezawa, Tomohiko Mawatari, Yasuhiro Kabu
  • Patent number: 7611351
    Abstract: A radiant gas burner is provided having a casing adapted for connection with an air-gas mixing and supply system including a flux dissector and a mixer. The burner further includes a metallic mesh emitter inside the casing having lower and upper meshes. The lower mesh and the upper mesh each have porous openings. Each of the lower and upper meshes having a radius of curvature wherein the lower mesh is spaced apart from the upper mesh.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: November 3, 2009
    Assignee: Chemical Physics Technologies, Inc.
    Inventors: Andrei V. Krauklis, Pawel S. Laptsevich, Vitali A. Zhdanok
  • Patent number: 7607914
    Abstract: A combustion type waste gas treatment system capable of oxidatively decomposing a hazardous combustible waste gas while heating efficiently with a structure which allows the waste gas to mix with an auxiliary burning gas efficiently without the occurrence of backfire in a waste gas inlet pipe. The combustion type waste gas treatment system has a burner part and a combustion chamber. Combustion flames are formed to extend from the burner part toward the combustion chamber, and a combustible waste gas is introduced into the combustion flames from waste gas inlet pipes thereby oxidatively decomposing the waste gas. A flow velocity accelerating device makes the flow velocity of the combustible waste gas flowing through the waste gas inlet pipe higher than the burning velocity of the combustible waste gas.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 27, 2009
    Assignee: Ebara Corporation
    Inventors: Tetsuo Komai, Kohtaro Kawamura, Takeshi Tsuji, Rikiya Nakamura, Kazutaka Okuda, Keiichi Ishikawa, Tomonori Ohashi, Yoshiro Takemura, Yasutaka Muroga, Tadakazu Nishikawa, Yuji Shirao
  • Patent number: 7568907
    Abstract: A method for operating a combustion chamber of a gas turbine, in particular of a power plant is provided. The combustion chamber includes at least one burner with a catalytic pilot burner. The method includes actuating the pilot burner at low power of the combustion chamber, generating a synthesis gas with a high proportion of hydrogen as a reaction product. The method further includes actuating the pilot burner at high power of the combustion chamber, generating a synthesis gas with a low proportion of hydrogen gas. An annular combustion chamber of a gas turbine, is also provided. The combustion chamber includes a plurality of burners distributed annularly. Each burner includes a catalytic pilot burner and a common air supply for the burner and the pilot burner is also provided. The common air supply distributes the supplied air with constant division between the burner and the pilot burner.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: August 4, 2009
    Assignee: Alstom Technology Ltd.
    Inventors: Richard Carroni, Timothy Griffin
  • Patent number: 7540160
    Abstract: A system is provided for vaporizing a cryogenic liquid. The system includes means for producing an exhaust gas by flameless thermal oxidation of a fuel. The system also includes means for transferring heat from the exhaust gas to the cryogenic liquid. The heat transferring means is coupled to receive the exhaust gas from the exhaust gas producing means. The means for producing an exhaust gas optionally includes an oxidizer having a matrix bed, a fuel/air mixture inlet positioned to deliver the fuel/air mixture to the matrix bed, and an exhaust outlet positioned to deliver the exhaust gas from the oxidizer to the heat transferring means. The means for transferring heat optionally includes a receptacle configured to hold a heat transfer medium, a conduit for cryogenic liquid extending into the receptacle, and a sparger positioned to deliver exhaust gas from the exhaust gas producing means to the receptacle.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: June 2, 2009
    Assignee: Selas Fluid Processing Corporation
    Inventors: Marc Rost, Peter Falcone
  • Patent number: 7521028
    Abstract: An improved catalytic reactor includes a housing having a plate positioned therein defining a first zone and a second zone, and a plurality of conduits fabricated from a heat conducting material and adapted for conducting a fluid therethrough. The conduits are positioned within the housing such that the conduit exterior surfaces and the housing interior surface within the second zone define a first flow path while the conduit interior surfaces define a second flow path through the second zone and not in fluid communication with the first flow path. The conduit exits define a second flow path exit, the conduit exits and the first flow path exit being proximately located and interspersed. The conduits define at least one expanded section that contacts adjacent conduits thereby spacing the conduits within the second zone and forming first flow path exit flow orifices having an aggregate exit area greater than a defined percent of the housing exit plane area.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: April 21, 2009
    Assignee: Precision Combustion, Inc.
    Inventors: Lance Smith, Shahrokh Etemad, Hasan Karim, William C. Pfefferle
  • Patent number: 7516607
    Abstract: A combustor assembly for a gas powered turbine includes a premix section to mix a first selected volume of fuel with a selected oxidizer. The premix section includes an injector plate that includes a porosity according to selected characteristics, such as pore size, pore density, pore distribution, and other selected characteristics. Therefore, the fuel may be provided through the porous plate to the premix area in a selected uniform flux.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: April 14, 2009
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: Shahram Farhangi, David R Matthews
  • Patent number: 7490601
    Abstract: A fireplace afterburner is presented including a shell having a first open shell end for receiving fireplace emissions and a second open shell end for expelling fireplace emissions, a flue inside said shell having a first flue end which can be closed, and a second flue end which is open, wherein when the first flue end is closed fireplace emissions flow around said flue, and wherein when said first flue end is open fireplace emission flow through said flue, a heating element connected to said shell and encircling said flue, wherein said heating element heats emissions that pass in proximity to the element, and a catalyst bed connected to said shell and encircling said flue. A method for reducing products of incomplete combustion in fireplace emissions is presented including receiving fireplace emissions into a shell, heating said fireplace emissions to at least 1501Ā° F. (816Ā° C.), reacting said fireplace emissions with a catalyst substrate, and releasing the results of said reaction from said shell.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: February 17, 2009
    Inventor: Paul E. Tiegs
  • Patent number: 7482303
    Abstract: Catalytic system combining an aluminium or iron containing catalytic support, a rare earth containing porous deposit, carbon nanoparticles and a carbon containing structure making bonds between carbon nanoparticles.
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: January 27, 2009
    Inventor: Dominique Bosteels
  • Patent number: 7467942
    Abstract: A device and a method for flame stabilization in a burner (10), includes a burner housing at least partially enclosing a burner volume, into which may be introduced via at least one fuel line, fuel, and via at least one air feed means, air, forming an air/fuel mixture spreading in a preferred flow direction, which may be ignited in a combustion chamber (11) connecting downstream of the burner housing to form a stationary flame (13). Upstream of the flame (13), a catalyst arrangement (1) is provided through which an air/pilot fuel mixture (4), separate from the air/fuel mixture, is flowable.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: December 23, 2008
    Assignee: ALSTOM Technology Ltd.
    Inventors: Richard Carroni, Thiemo Meeuwissen
  • Patent number: 7291010
    Abstract: A light-emitting device comprises a structure defining an orderly and periodic series of cavities of nanometric dimensions, in which a process of catalytic combustion is confined. The dimensions and/or the distance between the micro-cavities are selected to obtain a light emission in the visible and prevent and/or attenuate at the same time emission of infrared radiation.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: November 6, 2007
    Assignee: CRF Societa Consortile per Azioni
    Inventors: Piero Perlo, Gianfranco Innocenti, Piermario Repetto, Vito Lambertini, Gianluca Bollito, Mauro Sgroi, Mauro Brignone, Nello Li Pira, Rossella Monferino, Marzia Paderi, Cosimo Carvignese, Roberto Finizio
  • Patent number: 7175422
    Abstract: A method and apparatus for accelerated aging of an automotive catalytic converter under conditions incorporating volatilized oil consumption.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: February 13, 2007
    Assignee: Southwest Research Institute
    Inventors: Cynthia C. Webb, Brent A. Shoffner, Gordon J. Bartley
  • Patent number: 7077643
    Abstract: The present invention provides microcombustors, microreformers, and methods of steam reforming alcohols over a catalyst. The microcombustors can be manufactured with a very small size and can operate at very low temperature. Surprisingly superior results and properties obtained in methods of the present invention are also described.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: July 18, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Jamelyn D. Holladay, Max R. Phelps, Yong Wang, Ya-Huei Chin
  • Patent number: 7063527
    Abstract: A ceramic burner plaque is described being of a predetermined thickness defined between first and second planar surfaces and through which a plurality of burner ports (6) pass from one surface to the other. The ports are arranged in offset rows and a plurality of polygonal channels (10) are cut into the second surface (8) of the plaque, said channels also being arranged in offset fashion rows and being of a depth less than the thickness of the plaque. The channels are ideally octogonal in shape and of a width which widens progressively from the narrow base of the channel within the thickness of the plaque towards the second surface. The width of the channels at their base is ideally similar or marginally greater to the dimensions of the burner ports and the shape and position of the channels is such that a plurality of burner ports are coincidental with the base thereof.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: June 20, 2006
    Assignee: Sit-Bray Limited
    Inventors: Callum Clifford, Edward Hart, Graham Wood
  • Patent number: 7047746
    Abstract: A catalytic burner (1) of a combustion chamber (2), in particular of a power plant, includes at least one catalyst (5) and one swirl generator (6). To improve the burner (1), the swirl generator is designed as a radial swirl generator (6) and is arranged radially between an inflow space (7) and an outflow space (8) leading axially to the combustion chamber (2).
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: May 23, 2006
    Assignee: ALSTOM Technology Ltd.
    Inventor: Jaan Hellat
  • Patent number: 7008219
    Abstract: A boil-off gas processing system for reliably burning a boil-off gas. The system processes a boil-off gas produced from a liquid hydrogen tank which is built in a hydrogen fueled vehicle. The system includes a mixing device for introducing air into a discharge passage through which the boil-off gas from the liquid hydrogen tank passes and for mixing the air and the boil-off gas and outputting a mixed gas; a catalytic combustor for burning the mixed gas which was mixed by the mixing device, the catalytic combustor having an inlet through which the mixed gas is introduced and an outlet for discharging combustion gas; an electric heater provided at the inlet side of the catalytic combustor; and a control section for controlling energizing of the electric heater.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 7, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Toshiaki Shimada, Takahiro Kuriiwa, Yoshio Nuiya
  • Patent number: 6996990
    Abstract: A flow controller is disposed between a preburner section in a diffuser and prior to the main fuel injector and catalytic sections in a turbine combustor. The flow from the burner section is typically not uniform in temperature and velocity and the flow splitter renders the flow substantially uniform at the fuel injector and catalyst inlet. The flow splitter comprises substantially equal mass annular flow areas defined by a first outer frustoconical element and the diffuser wall, a second element defining with the first element a second annular area and a central bluff disk defining with the second element the interior annular area. Vanes are provided on the flow splitter to enhance turbulent flow and substantially preclude swirling flow. As a result, flow uniformity at the catalyst inlet and main fuel injection is achieved.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: February 14, 2006
    Assignee: General Electric Company
    Inventor: Constantin Alexandru Dinu
  • Patent number: 6981865
    Abstract: A catalyst combustor (11) includes an inner catalyst combustion portion (20) connected to a substitute fuel supply line (LS21, 12, 16) and a substitute oxidizer supply line (LS22, 13), an outer catalyst combustion portion (40) connected to an effluent fuel supply line (LS23, 14) and an effluent oxidizer supply line (LS24, 15), and a fluid communication portion (60) connecting the inner catalyst combustion portion (20) and the outer catalyst combustion portion (40) to each other, and has a fixed relationship provided among a fluid resistance (R2) of the inner catalyst combustion portion (20), a fluid resistance (R4) of the outer catalyst combustion portion (40), and a fluid resistance (R6) of the fluid communication portion (60), whereby substantially a warming catalyst combustion is caused to occur simply in the inner catalyst combustion portion (20), and a regular catalyst combustion is caused to occur in the inner catalyst combustion portion (20) and the outer catalyst combustion portion (40).
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: January 3, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Katsuya Kobayashi
  • Patent number: 6932594
    Abstract: A method and device for low-emission, noncatalytic combustion of a liquid fuel. The method includes separately introducing the liquid fuel in a non-ignitable state into a mixing zone, vaporizing the liquid fuel in the mixing zone, separately introducing a gaseous oxidizing agent into the mixing zone, and mixing the fuel and the gaseous oxidizing agent in the mixing zone to create ignitable mixture. The mixing zone is formed so that combustion is not possible even when the ignition temperature of the mixture is reached within the mixing zone. Combustion of the mixture occurs in a combustion zone located down current from the mixing zone.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: August 23, 2005
    Assignee: GVP Gesellschaft zur Vermarktung der Porenbrennertechnik mbH
    Inventors: Miroslaw Weclas, Jochen Volkert
  • Patent number: 6923001
    Abstract: A pilotless catalytic combustor (10) including a basket (12) having a central axis (14) and a central core region (16) disposed along a portion of the central axis. Catalytic combustion modules (18) are circumferentially disposed about the central axis radially outward of the central core region for receiving a fuel flow (20) and a first portion of an oxidizer flow (22), and discharge a partially oxidized fuel/oxidizer mixture (24) at respective exit ends (26). A base plate (30) is positioned in the central core region upstream of the exit ends of the catalytic combustion modules, the baseplate defining a recirculation zone (32) near the respective exit ends for stabilizing oxidation in the burnout zone. A method of staged fueling for a pilotless catalytic combustor includes providing fuel to at least one of the modules during start up and progressively providing fuel to other modules as a load on the turbine engine is increased.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: August 2, 2005
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Walter Ray Laster, Ramarao V. Bandaru
  • Patent number: 6896509
    Abstract: In a combustion method, in a burner (12, 20), a fuel/air mixture flowing through a flow passage (13) is made to react in a first combustion stage in a catalytic reactor (15), and downstream of the catalytic reactor (15) fuel is burnt together with the exhaust gas from the catalytic reactor (15) in a second combustion stage to form a homogenous flame (17) by self-ignition. If the fuel from the fuel/air mixture is only partially burnt in the first combustion stage in the catalytic reactor (15), and the unburnt remainder of the fuel is burnt in the second combustion stage, combustion can be stabilized by virtue of the fact that the fuel-containing exhaust gas from the catalytic reactor (15), between the outlet of the catalytic reactor (15) and the homogenous flame (17) is passed through devices 916, 19) which aerodynamically stabilize the homogenous flame (17).
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: May 24, 2005
    Assignee: ALSTOM Technology LTD
    Inventors: Richard Carroni, Peter Flohr
  • Patent number: 6881052
    Abstract: A device for heating hydrogen storage canister includes a canister containing chamber for accommodation of at least one hydrogen storage canister, a catalyst bed arranged in the canister containing chamber for catalysis. A blowing device provides an air flow through an air flow leading pipe to a nozzle section which is connected with a heating gas drawing pipe to the catalyst bed. A heating fuel storage tank supplies heating fuel which is conveyed to the nozzle section through a heating fuel supplying pipeline, a coiled pipe and a heating fuel conveying pipe in sequence. When the air flow flows through the nozzle section, the heating fuel is drawn into the nozzle section to mix with the air flow, forming a heating gas. The heating gas is atomized by the nozzle section and flows to the catalyst bed where the heating gas is catalyzed to burn to generate a hot gas to heat the hydrogen storage canister.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: April 19, 2005
    Assignee: Asia Pacific Fuel Cell Technologies, Ltd.
    Inventors: Jefferson Y S Yang, Yingjeng James Li
  • Patent number: 6875007
    Abstract: A catalytic combustor contains multiple sections for catalytically combusting an anode effluent. The anode effluent is divided into a plurality of portions with each portion routed to a different section or stage of the combustor. The proportioning of the anode effluent allows the combustor to be operated so that the flows combusted do not autoignite and various heat loads placed on the different stages of the combustor can be met. Additionally, the proportioning of the anode effluent allows the temperature within the various components of the combustor to be controlled so that a useful life of the combustor can be increased.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: April 5, 2005
    Assignee: General Motors Corporation
    Inventor: William H. Pettit
  • Patent number: 6840762
    Abstract: A small microcombustion heater which can realize reliable combustion. The heater has a premixed gas passage which reaches a combustion chamber, and a passage for a combustion gas drawn from the combustion chamber. The passages are arranged in a spiral form in a manner such that a heating wall is provided between the passages. The width of the premixed gas passage is a quenching distance or less, where the quenching distance is determined depending on the premixed gas. The heater has two outer faces for holding the spiral passages from both sides of the upper and lower edges of the heating wall, and at least one of the outer faces is a heating surface for emitting radiant heat. Typically, the spiral passages are placed between a heat-resisting heating plate and a heat insulating plate, and an outer face of the heat-resisting heating plate functions as the heating surface.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: January 11, 2005
    Assignees: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Kaoru Maruta, Toshiro Fujimori
  • Patent number: 6829896
    Abstract: A gas turbine engine (10) includes a catalytic oxidation module (28). The catalytic oxidation module includes a pressure boundary element (30); a catalytic surface (32); and an opening (34) in the pressure boundary element to allow premixing of the fluids before the fluids enter a downstream plenum. In an embodiment, the pressure boundary element includes a catalyst-coated tube (58) having holes (68) formed therein to allow mixing across the tube. In another embodiment, the pressure boundary element includes a tubesheet (44) having a first fluid passageway intersecting a second fluid passageway to premix the fluids upstream of the outlet end of the tubesheet. In yet another embodiment, the catalytic oxidation module includes an upstream tubesheet (86) for mounting a tube inlet end (73) and a downstream tubesheet (78) for mounting a tube outlet end (72) so that the tube is slidably contained there between.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 14, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Gerald J. Bruck, William E. Kepes, Dennis M. Bachovchin, Thomas E. Lippert
  • Patent number: 6817860
    Abstract: A catalytic combustor includes a plurality of channels formed by corrugated and flat strips, some of the channels being coated with a catalyst and others being uncoated. In the vicinity of the inlet end of the combustor, the boundary of each coated channel has a thermal barrier, to inhibit the flow of heat from the coated channel to an adjacent uncoated channel. Also in the vicinity of the inlet end, the coated channels may include one or more additional coated members, to enhance catalytic combustion in the light-off zone. The combustor of the present invention lights off at a relatively low temperature, and quickly reaches a stabilized and controlled operating temperature.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 16, 2004
    Assignee: Catacel Corp.
    Inventor: William A. Whittenberger
  • Patent number: 6810670
    Abstract: A catalytic section of a combustor is formed from a spaced tandem array of corrugated panels. The exterior top and bottom surfaces of the panels are coated with a catalyst and the space between panels defines a passage for a fuel-rich/air mixture. The interior of the corrugated panels define cooling air passages for maintaining the catalyst and substrate on which it is formed, at acceptable temperatures.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: November 2, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Gerald J. Bruck, William E. Kepes, Maria E. Stampahar, Thomas E. Lippert, Bernd Prade, Stefan Hoffmann
  • Publication number: 20040161718
    Abstract: A catalytic combustor contains multiple sections for catalytically combusting an anode effluent. The anode effluent is divided into a plurality of portions with each portion routed to a different section or stage of the combustor. The proportioning of the anode effluent allows the combustor to be operated so that the flows combusted do not autoignite and various heat loads placed on the different stages of the combustor can be met. Additionally, the proportioning of the anode effluent allows the temperature within the various components of the combustor to be controlled so that a useful life of the combustor can be increased.
    Type: Application
    Filed: February 12, 2004
    Publication date: August 19, 2004
    Inventor: William H. Pettit
  • Publication number: 20040161717
    Abstract: A catalyst combustion apparatus, includes: a fuel feed course for feeding liquid fuel; an air feed course for feeding air; a mixing unit for mixing fuel to be fed from the fuel feed course with air to be fed from the air feed course; a vaporizing unit for heating mixture obtained by mixing in the mixing unit to vaporize the liquid fuel; a catalyst heating unit disposed on the downstream side of the vaporizing unit in contact with or in close proximity to the vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component; and a catalyst combustion unit provided on the downstream of the catalyst heating unit, having a multiplicity of conductive holes, and the vaporizing unit is capable of utilizing heat from the catalyst heating unit.
    Type: Application
    Filed: June 19, 2003
    Publication date: August 19, 2004
    Inventors: Motohiro Suzuki, Tatsuo Fujita, Yoshitaka Kawasaki, Tetsuo Terashima
  • Patent number: 6775989
    Abstract: A catalytic combustor 30 includes a frame 32 and catalyst support plate assemblies 34 carried by the frame. A catalyst support plate assembly 34 includes a pair of opposing plates 36A, 36B, at least one having ridges 38A, 38B that define passageways 40 between the pair of opposing plates. A catalyst 44 is carried by the catalyst support plate assemblies 34. Both of the opposing plates 36A, 36B may have ridges 38A, 38B with valleys 42A, 42B between adjacent ridges. A pair of opposing plates 36A, 36B may be aligned and connected at opposing ridges 38A, 38B so that opposing valleys 42A, 42B define air passageways having predetermined shapes. The catalyst support plate assemblies 34 may be arranged in back-to-back relation so that adjacent pairs of catalyst support plate assemblies 34 define fuel/air passageways 46. Adjacent pairs of catalyst support plate assemblies 34 may be offset from one another to define a nested configuration.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: August 17, 2004
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: Ramarao V. Bandaru, John Carl Glessner
  • Publication number: 20040142291
    Abstract: A device for heating hydrogen storage canister includes a canister containing chamber for accommodation of at least one hydrogen storage canister, a catalyst bed arranged in the canister containing chamber for catalysis. A blowing device provides an air flow through an air flow leading pipe to a nozzle section which is connected with a heating gas drawing pipe to the catalyst bed. A heating fuel storage tank supplies heating fuel which is conveyed to the nozzle section through a heating fuel supplying pipeline, a coiled pipe and a heating fuel conveying pipe in sequence. When the air flow flows through the nozzle section, the heating fuel is drawn into the nozzle section to mix with the air flow, forming a heating gas. The heating gas is atomized by the nozzle section and flows to the catalyst bed where the heating gas is catalyzed to burn to generate a hot gas to heat the hydrogen storage canister.
    Type: Application
    Filed: December 16, 2003
    Publication date: July 22, 2004
    Inventors: Jefferson Ys Yang, Yingjeng James Li
  • Publication number: 20040126724
    Abstract: A catalytic combustor is provided with a housing supplied with mixed gas including exhaust fuel gas from a fuel electrode of a fuel cell and exhaust oxidizer gas from an oxidizer electrode of the fuel cell, and a catalyst combusting the mixed gas. At an area upstream of the catalyst, an inner periphery surface of the housing has a continuous shape, and at least one of the exhaust fuel gas and the exhaust oxidizer gas is supplied to the housing in a way to generate swirl flow in the mixed gas so as to swirl along the inner peripheral surface. Such a catalytic combustor is applied to a fuel cell system provided with a fuel cell having a fuel electrode and an oxidizer electrode.
    Type: Application
    Filed: November 12, 2003
    Publication date: July 1, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Koichi Yamaguchi, Tadashi Shoji
  • Patent number: 6752623
    Abstract: The present invention is a method, and an apparatus for practicing the method, that creates a product stream and a heat of reaction from a fuel-rich fuel/air mixture and then contacts the product stream with a sufficient quantity of additional air to completely combust all of the fuel, to which air a portion of the heat of reaction has been transferred.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: June 22, 2004
    Assignee: Precision Combustion, Inc.
    Inventors: Lance L. Smith, Shahrokh Etemad, Marco J. Castaldi, Hasan Ul Karim, William C. Pfefferle
  • Patent number: 6712603
    Abstract: A catalytic combustor contains multiple sections for catalytically combusting an anode effluent. The anode effluent is divided into a plurality of portions with each portion routed to a different section or stage of the combustor. The proportioning of the anode effluent allows the combustor to be operated so that the flows combusted do not autoignite and various heat loads placed on the different stages of the combustor can be met. Additionally, the proportioning of the anode effluent allows the temperature within the various components of the combustor to be controlled so that a useful life of the combustor can be increased.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: March 30, 2004
    Assignee: General Motors Corporation
    Inventor: William H. Pettit
  • Patent number: 6712602
    Abstract: Disclosed is a hybrid high pressure catalytic combustion burner employing catalysts and CST combustion with staged mixing systems, in which a primary combustion gas containing reacted gas of a primary gas mixture, which is formed via catalytic combustion, is subject to a secondary mixing with the primary gas mixture containing fuel and high temperature air, completing stable high temperature CST combustion at ultra lean conditions, thereby achieving high temperature combustion reducing formation of NOx.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: March 30, 2004
    Assignee: Korea Institute of Energy Research
    Inventors: Sung-Kyu Kang, Nam-Jo Joung, Yong-Seok Seo, Sung-Jun Cho, In-Soo You, Hyun-Dong Shin
  • Patent number: 6709264
    Abstract: A catalytic combuster having a mixing section upstream of a combustion section. The mixing section includes a multi-port injector for injecting a first reactant gas into the mixing section in a plurality of directions perpendicular the direction or flow of a second reactant gas.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: March 23, 2004
    Assignee: General Motors Corporation
    Inventors: Ingo Hermann, Axel Junge, Martin Stadie, Andreā€² Mack-Gardner, Philip Klaus