In A Porous Body Or Bed, E.g., Surface Combustion, Etc. Patents (Class 431/7)
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Publication number: 20090056695Abstract: An open “funnel shaped” Inner Burner inside an open top Outer Casing. The casings closed base has a central hole accommodating the burners small open bottom Ash Exit. The space between the Inner Burner wall and Outer Casing wall forms an Annular Air Plenum that's supplied by an electric variable speed blower. Air enters the Burner Combustion space through perforations in the Burner/Plenum wall. This ensures rapid ignition and controls combustion rate (Temp). This also precipitates ash from burner Ash Exit, through the Ash Chute and into Storage Container fitted to outer casings base. A Radial diffuser centered on the heating surface provides a variable speed Lateral Air Sheet between heating and grill surfaces, instantly blowing “Smoke and Flare-Ups” to the outer burner perimeter. Unit is designed as a “Drop-In” unit to fit a manufacturer BBQ cart suitably equipped to specify basic installation requirements.Type: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Applicant: BARRY COSGROVEInventor: Barry Cosgrove
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Publication number: 20090053661Abstract: A fluidized bed boiler plant and a method of combusting sulfurous fuel in the fluidized bed boiler plant, a furnace of which plant is provided with a fluidized bed of particles. Sulfurous fuel, CaCO3-containing sulphur-binding agent and combusting air are introduced to the bed of particles, whereby fuel burns and generates flue gases and the sulphur-binding agent calcinates to CaO and binds SO2 generated in the combustion. Energy is recovered to a heat exchange medium circulating in heat exchange tubes of a condensing heat exchanger arranged in a flue gas channel, and a water solution of acid condensing on outer surfaces is neutralized by mixing it in a mixing vessel to a CaO-containing ash from a plant, preferably, fly ash collected by a dust separator.Type: ApplicationFiled: February 16, 2006Publication date: February 26, 2009Applicant: FOSTER WHEELER ENERGIA OYInventor: Pertti Kinnunen
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Patent number: 7493876Abstract: A steam generating boiler having a matrix means for reducing combustion volume. Matrix means is placed in the combustion furnace of a steam generating boiler, preferably downstream of fuel and oxidant stream. Matrix means produces a shorter combustion envelope than that of a conventional boiler, allowing for reduced volume steam generating boilers.Type: GrantFiled: July 11, 2007Date of Patent: February 24, 2009Inventors: Joseph Robert Strempek, Ronald C. Lenzer
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Patent number: 7490601Abstract: 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 1501° F. (816° C.), reacting said fireplace emissions with a catalyst substrate, and releasing the results of said reaction from said shell.Type: GrantFiled: July 5, 2007Date of Patent: February 17, 2009Inventor: Paul E. Tiegs
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Patent number: 7482303Abstract: 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: GrantFiled: August 17, 2004Date of Patent: January 27, 2009Inventor: Dominique Bosteels
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Patent number: 7467942Abstract: 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: GrantFiled: September 21, 2006Date of Patent: December 23, 2008Assignee: ALSTOM Technology Ltd.Inventors: Richard Carroni, Thiemo Meeuwissen
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Publication number: 20080213708Abstract: A fuel delivering terminal (1) is disclosed adapted to be connected to a delivery end of a combustion lance (3) of lime regenerating ovens, wherein D is the external diameter of the terminal (1) and is greater that the internal diameter d of the delivery end of the combustion lance (3); a combustion lance equipped with the terminal (1) and a system and a process for controlling the fuel supply flow through such lances are also disclosed.Type: ApplicationFiled: February 10, 2006Publication date: September 4, 2008Inventors: Eugen Dan Cristea, Oliviero Collarini
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Patent number: 7399451Abstract: Device for pollution control where a polluted stream of air or gas is purified from both oxidisable material and nitrogen oxides simultaneously by a combination of regenerative high temperature treatment and catalytic treatment.Type: GrantFiled: March 8, 1999Date of Patent: July 15, 2008Assignee: Megtec Systems ABInventor: Bjorn Heed
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Publication number: 20080124666Abstract: The invention relates to a porous burner with a housing, which has an inlet for a fuel-air mixture and an outlet for the exhaust gas mixture generated in the burner, where in flow-direction of the fuel-air mixture the housing contains an ignition space with an ignition device and adjacent to this space a porous burner medium. On the inlet side the ignition space is provided with a stabilizing element, which reduces the inlet cross-section and directs the flow of the fuel-air mixture essentially perpendicular to the inlet cross-section of the porous medium. The porous burner is provided with a device for controlling the mass flow of the fuel-air mixture, which serves to shift the combustion zone from the ignition space into the porous medium.Type: ApplicationFiled: October 24, 2007Publication date: May 29, 2008Inventors: Frank Stocker, August Lackner
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Patent number: 7371065Abstract: In order to provide an apparatus for the controlled production of nano-soot particles, a pore burner and a mixing device for the production of a pre-mixture of fuel and oxidizing agent are provided, wherein the mixing device is coupled to the pore burner so that the pre-mixture can be supplied to it.Type: GrantFiled: March 11, 2005Date of Patent: May 13, 2008Assignee: Deutsches Zentrum fur Luft -und Raumfahrt E.V.Inventors: Manfred Aigner, Claus Wahl, Veronique Krueger
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Patent number: 7279137Abstract: The invention provides improved burners, combustion apparatus, and methods for carbon nanomaterial production. The burners of the invention provide sooting flames of fuel and oxidizing gases. The condensable products of combustion produced by the burners of this invention produce carbon nanomaterials including without limitation, soot, fullerenic soot, and fullerenes. The burners of the invention do not require premixing of the fuel and oxidizing gases and are suitable for use with low vapor pressure fuels such as those containing substantial amounts of polyaromatic hydrocarbons. The burners of the invention can operate with a hot (e.g., uncooled) burner surface and require little, if any, cooling or other forms of heat sinking. The burners of the invention comprise one or more refractory elements forming the outlet of the burner at which a flame can be established. The burners of the invention provide for improved flame stability, can be employed with a wider range of fuel/oxidizer (e.g.Type: GrantFiled: March 15, 2002Date of Patent: October 9, 2007Assignee: TDA Research, Inc.Inventors: J. Michael Alford, Michael D. Diener, James Nabity, Michael Karpuk
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Patent number: 7175422Abstract: A method and apparatus for accelerated aging of an automotive catalytic converter under conditions incorporating volatilized oil consumption.Type: GrantFiled: June 10, 2003Date of Patent: February 13, 2007Assignee: Southwest Research InstituteInventors: Cynthia C. Webb, Brent A. Shoffner, Gordon J. Bartley
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Patent number: 7157066Abstract: The present invention provides a combustion apparatus for the production of carbon nanomaterials including fullerenes and fullerenic soot. Most generally the combustion apparatus comprises one or more inlets for introducing an oxygen-containing gas and a hydrocarbon fuel gas in the combustion system such that a flame can be established from the mixed gases, a droplet delivery apparatus for introducing droplets of a liquid hydrocarbon feedstock into the flame, and a collector apparatus for collecting condensable products containing carbon nanomaterials that are generated in the combustion system. The combustion system optionally has a reaction zone downstream of the flame. If this reaction zone is present the hydrocarbon feedstock can be introduced into the flame, the reaction zone or both.Type: GrantFiled: November 27, 2002Date of Patent: January 2, 2007Assignee: TDA Research, Inc.Inventors: Michael D. Diener, J. Michael Alford, James Nabity, Bradley D. Hitch
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Patent number: 7152409Abstract: According to one aspect, a method of controlling a multi-combustor catalytic combustion system is provided for determining a characteristic of a fuel-air mixture downstream of a preburner associated with a catalytic combustor and adjusting the fuel flow to the preburner based on the characteristic. The characteristic may include, for example, a measurement of the preburner or catalyst outlet temperature or a determination of the position of the homogeneous combustion wave in the burnout zone of the combustor.Type: GrantFiled: January 16, 2004Date of Patent: December 26, 2006Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: David K. Yee, Dag Reppen
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Patent number: 7008219Abstract: 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: GrantFiled: August 7, 2002Date of Patent: March 7, 2006Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshiaki Shimada, Takahiro Kuriiwa, Yoshio Nuiya
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Patent number: 6991454Abstract: A gas burner is provided that simulates wood burning fire and the glowing ember effect of real wood or coal burning. The burner has a burner pan which is covered by a refractory material and a ceramic material. Burner ports are formed through the refractory and ceramic materials. Methods for forming such a burner are also provided.Type: GrantFiled: September 15, 2003Date of Patent: January 31, 2006Assignee: Lennox Hearth Products, Inc.Inventors: Hardial S. Gore, Depinder Paul
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Patent number: 6986797Abstract: An auxiliary reactor for use with a reformer reactor having at least one reaction zone, and including a burner for burning fuel and creating a heated auxiliary reactor gas stream, and heat exchanger for transferring heat from auxiliary reactor gas stream and heat transfer medium, preferably two-phase water, to reformer reaction zone. Auxiliary reactor may include first cylindrical wall defining a chamber for burning fuel and creating a heated auxiliary reactor gas stream, the chamber having an inlet end, an outlet end, a second cylindrical wall surrounding first wall and a second annular chamber there between. The reactor being configured so heated auxiliary reactor gas flows out the outlet end and into and through second annular chamber and conduit which is disposed in second annular chamber, the conduit adapted to carry heat transfer medium and being connectable to reformer reaction zone for additional heat exchange.Type: GrantFiled: May 2, 2000Date of Patent: January 17, 2006Assignee: Nuvera Fuel Cells Inc.Inventors: Lawrence G. Clawson, Matthew H. Dorson, William L. Mitchell, Brian J. Nowicki, Jeffrey M. Bentley, Robert Davis, Jennifer W. Rumsey
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Patent number: 6982065Abstract: A catalyzer has a plurality of plane sheets arranged superposed and spaced apart from each other in a stack, between which a plurality of straight channels extend parallel in the flow direction and are delimited by the plane sheets. The plane sheets are coated in such a way that a catalytic coating is present in all channels; that the catalytic coating is limited to predetermined sections of the channels; and that inside the channels, uncoated sections in each case are positioned opposite to sections with the catalytic coatings. The uncoated sections absorb the heat radiation emitted by the catalytic coatings during operation, thereby improving cooling and preventing homogeneous ignition.Type: GrantFiled: December 20, 2001Date of Patent: January 3, 2006Assignee: Alstom Technology LtdInventors: Richard Carroni, Timothy A. Griffin, Verena Schmidt, Dieter Winkler
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Patent number: 6981865Abstract: 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: GrantFiled: February 16, 2001Date of Patent: January 3, 2006Assignee: Nissan Motor Co., Ltd.Inventor: Katsuya Kobayashi
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Patent number: 6948928Abstract: A catalytic combustor for a gas turbine includes a stack of metal strips, each strip having an inlet end and an outlet end. The inlet ends of both sides of the strip are uncoated, to limit the temperature and maintain rigidity of the strip at the inlet end. In one embodiment, both sides of the strip have a light-off band, coated with catalyst, and adjacent to the uncoated inlet band. One side of the strip (Side A) also includes at least one combustion band, while the other side (Side B) has no corresponding coated band. The strips are arranged such that Side A of a given strip inside the stack faces Side A of an adjacent strip, and Side B of a strip inside the stack faces Side B of an adjacent strip. The resulting structure prevents overheating of the combustor, maintains its rigidity, and reduces the pressure drop through the combustor.Type: GrantFiled: October 18, 2001Date of Patent: September 27, 2005Assignee: Catacel CorporationInventors: Richard C. Cornelison, William B. Retallick, William A. Whittenberger
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Patent number: 6939126Abstract: A gas burner (10) includes an internal cavity (20) for receiving a gas and air mixture and an external substantially cylindrical wall (16) surrounding the cavity (20). The wall (16) is provided with through holes (32) for allowing gases to pass from the cavity (20) to an exterior burner (10) for combustion. The wall (16) is made up of one or more wall elements (30) in the form of sheets of material shaped so that together they form a substantially cylindrical shape. The wall includes at least one join between adjacent edge portions (34a, 34b) of the wall elements, the join being welded and at least the part of one edge portion (34a) overlying at least a part of the other edge portion (34b) in the region of the join.Type: GrantFiled: March 17, 2003Date of Patent: September 6, 2005Assignee: Aeromatix LimitedInventor: Michael Boyes
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Patent number: 6939125Abstract: A method for reducing NOx, in a combustion gas which is discharged from a combustion furnace for burning a fuel by means of a gas containing oxygen in an amount of at least 80 vol % and which contains oxygen, which method comprises adding a combustible material to the combustion gas at a temperature of from 1,000 to 1,500° C., wherein the combustible material contains a compound comprising C and H.Type: GrantFiled: April 14, 2003Date of Patent: September 6, 2005Assignee: Asahi Glass Company, LimitedInventors: Masamichi Yokotani, Yutaka Ishikawa, Atsushi Tanigaki, Daisuke Hasegawa, Shinji Morohashi
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Patent number: 6932594Abstract: 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: GrantFiled: June 3, 2002Date of Patent: August 23, 2005Assignee: GVP Gesellschaft zur Vermarktung der Porenbrennertechnik mbHInventors: Miroslaw Weclas, Jochen Volkert
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Patent number: 6918755Abstract: A fuel-fired burner for use with an emission abatement device comprises a pair of electrodes. Each electrode comprises an arc-contact rod to generate an electrical arc therebetween.Type: GrantFiled: July 20, 2004Date of Patent: July 19, 2005Assignee: Arvin Technologies, Inc.Inventors: Randall J. Johnson, Wilbur H. Crawley, Stephen P. Goldschmidt
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Patent number: 6908301Abstract: A fuel injector (11) supplies liquid fuel to a catalytic combustor (9) of a fuel reforming device during startup of a fuel reforming device. A controller sets the injection amount (Qf) for liquid fuel to a first injection amount (Qf1) during a predetermined time (t1) after starting fuel injection. After the predetermined time, the injection amount (Qf) is set to a second injection amount (Qf2) which is larger than the first injection amount (Qf1). When the elapsed time after starting fuel injection is smaller than a value (t1), the discharged amount of uncombusted fuel is reduced by setting the injection amount (Qf) to a minimum injection amount (Qf1) which allows ignition and combustion in the catalyst.Type: GrantFiled: November 12, 2002Date of Patent: June 21, 2005Assignee: Nissan Motor Co., Ltd.Inventors: Koichi Yamaguchi, Tadashi Shoji, Tadashi Matoba
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Patent number: 6905327Abstract: A method of warming up a fuel evaporator is disclosed. The fuel evaporator 2 comprises: an evaporation chamber 2b equipped with a first injection device 2a for injecting raw fuel liquid onto a heat source 2p, and vaporizing the raw fuel liquid on the heat source; a catalyst combustor 20 having a combustion catalyst 22a, and introducing catalytically burned combustion gas into the heat source; a second injection device 30 for supplying fuel to the catalyst combustor; a combustion gas transferring device 10 equipped with a fuel injection portion 10a and a combustion catalyst 10c, and the fuel injection portion injecting fuel onto the combustion catalyst to generate a catalytically burned gas; a first temperature measurement device T1 for the catalyst combustor; and a second temperature measurement device T2 for the evaporation chamber.Type: GrantFiled: July 6, 2001Date of Patent: June 14, 2005Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takahiro Tachihara, Kiyoshi Kasahara, Satoshi Hanai
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Patent number: 6887067Abstract: A catalytically operating burner with a catalyzer structure (4), useful in particular for a gas turbine system, has a heat-resistant carrier material (10) that forms the walls of several adjoining channels (13). The channels (13) pervade the catalyzer structure (4) in longitudinal direction and permit that a gaseous reaction mixture flows through the catalyzer structure (4). The walls are coated at least in part with a catalyst. In order to improve the catalytic conversion within the catalyzer structure (4), communicating openings (14) are constructed in the walls between an inlet end and an outlet end of the catalyzer structure (4). Adjoining channels (13) are able to communicate with each other through the communicating openings (14).Type: GrantFiled: April 30, 2001Date of Patent: May 3, 2005Assignee: Alstom Technology LTDInventors: Timothy Griffin, Peter Jansohn, Verena Schmidt, Dieter Winkler
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Patent number: 6881052Abstract: 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: GrantFiled: December 16, 2003Date of Patent: April 19, 2005Assignee: Asia Pacific Fuel Cell Technologies, Ltd.Inventors: Jefferson Y S Yang, Yingjeng James Li
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Patent number: 6875007Abstract: 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: GrantFiled: February 12, 2004Date of Patent: April 5, 2005Assignee: General Motors CorporationInventor: William H. Pettit
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Patent number: 6874498Abstract: A gas powered soldering tool (1) comprising a handle (2) and a tubular carrier member (15) extending therefrom. A combustion chamber (22) is formed in a distal end (19) of the carrier member (15) within which a catalytic combustion element (23) of cylindrical construction is located. Fuel gas/air mixture is supplied to the combustion chamber (22) through the carrier member (15). A receiving member (30) is crimped onto the carrier member (15) at the distal end thereof and releasably carries a soldering tip tool (18). A spigot (40) extending from the soldering tip tool (18) into the combustion chamber (22) conducts heat from the combustion chamber (22) to a soldering tip portion (36) of the soldering tool tip (18). A plug member (37) of the soldering tool tip (18) is threaded for engaging corresponding threads in a bore (31) of the receiving member (30) for facilitating replacement of the soldering tool (18).Type: GrantFiled: October 12, 2001Date of Patent: April 5, 2005Assignee: Oglesby & Butler Research & Development LimitedInventors: Alfred Peter Oglesby, John Paul Oglesby
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Patent number: 6866091Abstract: A method for vaporizing and/or superheating a combustible/water mixture, wherein the combustible is especially methanol, for supplying a gas generation system (2) belonging to a fuel cell installation (3). The waste-gas from the fuel cell and/or gas generation system is catalytically combusted together with a gas containing oxygen in order to produce the thermal energy required therefore. The combustible is added in a dosed manner to the volume flow from the gas containing oxygen and the waste gases of the fuel cell and/or gas generator system in the direction of flow prior to catalytic combustion.Type: GrantFiled: December 22, 2000Date of Patent: March 15, 2005Assignee: DaimlerChrysler AGInventor: Rainer Autenrieth
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Patent number: 6851947Abstract: The invention relates to a hydrogen combustion heater. This heater includes (a) a passage for allowing hydrogen gas and air to flow therethrough; (b) a first catalyst provided in the passage, the first catalyst being heated, when electricity is applied thereto, thereby starting a first combustion of a first mixture of the hydrogen gas and the air in the first catalyst; and (c) a heat exchanger provided downstream of the first catalyst in the passage, the heat exchanger being adapted to transfer heat generated by the first combustion to a heating medium of the heat exchanger.Type: GrantFiled: August 9, 2001Date of Patent: February 8, 2005Assignee: Calsonic Kanei CorporationInventors: Tamotsu Sugimoto, Shigeho Shimada
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Patent number: 6805553Abstract: A burner arrangement for the combustion of a fuel gas/oxygen mixture, characterized by a body permeable for the mixture whose surface regions defining the free cross section of flow are covered with an oxidation catalyst, by a feeder device arranged on an intake side of the body permeable for the mixture which distributes the mixture over at least essentially the entire active intake area of the intake side and by a layer coordinated with the feeder device and separating the catalytic combustion zone of the permeable body from the mixture inflow, but permeable for it, which serves as a flashback safety.Type: GrantFiled: February 6, 2001Date of Patent: October 19, 2004Assignee: General Motors CorporationInventors: Ingo Hermann, Hans-Gerd Dusterwald
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Patent number: 6796129Abstract: The present additional control strategy has been developed to allow the gas turbine to operate at lower load or at other conditions where the total fuel required by the gas turbine is not optimum for full combustion of the fuel. The present invention manages air that bypasses the catalytic combustor and air that bleeds off of the compressor discharge. The bypass system changes the fuel air ratio of the catalytic combustor without affecting the overall gas turbine power output. The bleed system also changes the fuel air ratio of the catalytic combustor but at the cost of reducing the overall gas turbine efficiency. The key advantage of a catalytic combustor with a bypass and bleed system and the inventive control strategy is that it can maintain the catalyst at optimum low emissions operating conditions over a wider load range than a catalytic combustor without such a system.Type: GrantFiled: February 7, 2002Date of Patent: September 28, 2004Assignee: Catalytica Energy Systems, Inc.Inventors: David K. Yee, Robert Anthony Corr, II, Sarento George Nickolas
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Publication number: 20040185400Abstract: A catalytic combustor for a gas turbine includes a stack of metal strips, each strip having an inlet end and an outlet end. The inlet ends of both sides of the strip are uncoated, to limit the temperature and maintain rigidity of the strip at the inlet end. In one embodiment, both sides of the strip have a light-off band, coated with catalyst, and adjacent to the uncoated inlet band. One side of the strip (Side A) also includes at least one combustion band, while the other side (Side B) has no corresponding coated band. The strips are arranged such that Side A of a given strip inside the stack faces Side A of an adjacent strip, and Side B of a strip inside the stack faces Side B of an adjacent strip. The resulting structure prevents overheating of the combustor, maintains its rigidity, and reduces the pressure drop through the combustor.Type: ApplicationFiled: October 18, 2001Publication date: September 23, 2004Applicant: Catacel Corp.Inventors: Richard C. Cornelison, William B. Retallick, William A. Whittenberger
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Publication number: 20040170936Abstract: The invention refers to a method for low-emission, non-catalytic combustion of a liquid fuel consisting of the following steps: separate introduction of the liquid fuel in a non-ignitable state into a mixing zone, vaporization of the liquid fuel in the mixing zone, separate introduction of a gaseous oxidizing agent into the mixing zone, mixing the fuel and the gaseous oxidizing agent in the mixing zone so that an ignitable mixture is created, wherein 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, and combustion of the mixture in a combustion zone located down current from the mixing zone.Type: ApplicationFiled: December 23, 2003Publication date: September 2, 2004Inventors: Miroslaw Weclas, Jochen Volkert
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Patent number: 6776606Abstract: A catalyst composition and method for oxidizing fuels is disclosed. The catalyst composition comprises at least one compound having one of a group III, group IIA or Lanthanide element such as, for example, Aluminum, Magnesium or Cesium, and at least one compound having at least one element selected from group IA, group IVA, group VI, group VII, group VIII, group IB, group IIB, and combinations thereof, such as, for example platinum, rhodium and rhenium. A method for oxidizing an fuel, the method comprising providing a fuel and a catalyst mixture; transporting the fuel and the catalyst to the flame zone separately; mixing the fuel and the catalyst; and oxidizing the fuel. The method and catalyst mixture may be used for oxidation of any hydrocarbon based fuel. Improved results from the use of the group III, group IIA or Lanthanide group element include increased power, reduced harmful emissions, and smoother oxidation process.Type: GrantFiled: March 1, 2002Date of Patent: August 17, 2004Assignee: Emmissions Technology, LLCInventor: James W. Haskew
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Patent number: 6775989Abstract: 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: GrantFiled: September 13, 2002Date of Patent: August 17, 2004Assignee: Siemens Westinghouse Power CorporationInventors: Ramarao V. Bandaru, John Carl Glessner
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Publication number: 20040146820Abstract: 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.Type: ApplicationFiled: January 14, 2004Publication date: July 29, 2004Inventors: Richard Carroni, Peter Flohr
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Publication number: 20040142291Abstract: 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: ApplicationFiled: December 16, 2003Publication date: July 22, 2004Inventors: Jefferson Ys Yang, Yingjeng James Li
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Patent number: 6761558Abstract: The present invention relates to a heating apparatus using thermal reaction of brown gas. After brown gas generated from a brown gas generator passes hexane liquid in a flame arrester, it is burnt in a brown gas burner located at a lower portion of a heating element. Heating members are installed in multi-stage inside a heating element body of a hollow form. The heating element body located at each stage includes vent holes and exhaust openings. A cover is disposed on the top of the heating element. The heating member located at the lower portion is heated by flame of the brown gas, and then also the heating member located at an upper portion is heated by flame of high temperature caused by the thermal reaction of the brown gas, which gradually heats the lower heating member. After all, the whole heating members are heated to emit a vast heat.Type: GrantFiled: April 12, 2002Date of Patent: July 13, 2004Inventor: Sang-Nam Kim
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Publication number: 20040126724Abstract: 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: ApplicationFiled: November 12, 2003Publication date: July 1, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Koichi Yamaguchi, Tadashi Shoji
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Publication number: 20040121274Abstract: A gas burner (10) includes an internal cavity (20) for receiving a gas and air mixture and an external substantially cylindrical wall (16) surrounding the cavity (20). The wall (16) is provided with through holes (32) for allowing gases to pass from the cavity (20) to an exterior burner (10) for combustion. The wall (16) is made up of one or more wall elements (30) in the form of sheets of material shaped so that together they form a substantially cylindrical shape. The wall includes at least one join between adjacent edge portions (34a, 34b) of the wall elements, the join being welded and at least the part of one edge portion (34a) overlying at least a part of the other edge portion (34b) in the region of the join.Type: ApplicationFiled: March 17, 2003Publication date: June 24, 2004Inventor: Michael Boyes
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Patent number: 6752623Abstract: 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: GrantFiled: May 6, 2002Date of Patent: June 22, 2004Assignee: Precision Combustion, Inc.Inventors: Lance L. Smith, Shahrokh Etemad, Marco J. Castaldi, Hasan Ul Karim, William C. Pfefferle
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Patent number: 6748745Abstract: The invention is a method and apparatus for use therewith for a main burner of a gas turbine. The method employs catalytic combustion to support main combustion. More specifically, a rich fuel/air mixture is catalytically oxidized with the resulting reacted mixture being made lean by having additional air added thereto. The resulting lean mixture is then combusted in the presence of the main mixture that is also lean thereby supporting combustion of the main mixture. The method allows for enhanced turndown of a lean main mixture.Type: GrantFiled: September 15, 2001Date of Patent: June 15, 2004Assignee: Precision Combustion, Inc.Inventors: Md. Hasan Ul Karim, Kent Lyle, Lance L. Smith, Shahrokh Etemad, William C Pfefferle
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Patent number: 6736633Abstract: A burner manifold apparatus (10) for delivering reactants to a combustion site of a chemical vapor deposition process includes fluid inlets (32a, 32b), fluid outlets (49), and a plurality of fluid passages (50) extending therebetween. The fluid passages (50) converge toward each other from the fluid inlets to the fluid outlets. One embodiment includes a manifold base (12), a pressure plate (14), and a manifold burner mount (16) for mounting thereto a micromachined burner (58). The fluid passages (50) internal to the manifold base are configured to distribute symmetrically the fluid to the manifold burner mount. The fluid is then channeled through fluid passages in the manifold burner mount. The fluid passages converge, yet remain fluidly isolated from each other, and the fluid passages create a linear array for producing linear streams of fluid. Alternatively, the burner manifold apparatus may include a plurality of manifold elements in a stacked arrangement.Type: GrantFiled: April 26, 2001Date of Patent: May 18, 2004Assignee: Corning IncorporatedInventors: David F. Dawson-Elli, Xiaodong Fu, Daniel W. Hawtof, William J. Kiefer, John F. Wight, Jr., John Stone, III
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Patent number: 6712603Abstract: 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: GrantFiled: August 7, 2002Date of Patent: March 30, 2004Assignee: General Motors CorporationInventor: William H. Pettit
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Patent number: 6712601Abstract: A catalytic heater 10 has an insulation pad 36 and a catalyst pad 34 mounted in face-to-face relation within an enclosure 11 having an open front face 20. A starter 48 is mounted within the catalyst pad and is effective for preheating of the catalyst pad. Fuel gas is supplied to the rear face of the insulation pad and air is supplied to the front face of the catalyst pad, so that a catalytic reaction occurs generally when the catalyst pad and sear the ope front face. After the catalytic reaction begins, electrical energy is ceased to the starter. The starter preferably comprises a quartz-halogen lamp of a relatively small size which is mounted within the catalyst pad.Type: GrantFiled: October 31, 2001Date of Patent: March 30, 2004Assignee: PGI International, Ltd.Inventor: Kevin J. Cessac
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Patent number: 6712602Abstract: 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: GrantFiled: August 1, 2002Date of Patent: March 30, 2004Assignee: Korea Institute of Energy ResearchInventors: Sung-Kyu Kang, Nam-Jo Joung, Yong-Seok Seo, Sung-Jun Cho, In-Soo You, Hyun-Dong Shin
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Publication number: 20040058286Abstract: Process for burning off oil spills, especially on lakes, seas and marginal seas or in the soil, wherein, prior to ignition, the oil slick is sprayed with an incendiary material containing a readily combustible mixture of saturated and/or unsaturated hydrocarbons, preferably containing a readily combustible mixture of saturated hydrocarbons, and the oil slick soaked with this mixture is then ignited, and incendiary composition and priming compound for carrying out the process.Type: ApplicationFiled: September 12, 2003Publication date: March 25, 2004Inventors: August Peisker, Andre Peisker