Water, Air Or Steam Feeder Spaced From Disperser Patents (Class 431/190)
  • Patent number: 10227932
    Abstract: Systems and methods for regulating fuel at a power plant are provided. One example aspect of the present disclosure is directed to a method for regulating fuel at a power plant. The method includes receiving data from an engine. The engine includes an A-ring, a B-ring, and a C-ring. The method includes updating a plurality of models based on the received data. The method includes predicting a plurality of outputs using the plurality of models for a plurality of fuel splits. Each fuel split includes a fuel amount associated with the A-ring. Each fuel split includes a fuel amount associated with the C-ring. The method includes selecting an actual fuel split based on the plurality of outputs.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 12, 2019
    Assignee: General Electric Company
    Inventors: Randall Boehm, Ruth Donan, Stephen Bartlett, Donald Bleasdale
  • Patent number: 9188000
    Abstract: The aim of the invention is to improve the efficiency of an axial-piston motor. To this end, the axial-piston motor is provided with a system for regulating the combustion chamber, said system comprising a means for supplying water into the combustion chamber.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: November 17, 2015
    Assignee: GETAS Gesellschaft fuer thermodynamische Antriebssysteme mbH
    Inventors: Ulrich Rohs, Dieter Voigt
  • Publication number: 20140134553
    Abstract: Reactor for chemical looping combustion. The reactor includes a rotary wheel having a plurality of channels extending therethrough, each channel having a wall with a porous oxygen carrier layer disposed on a bulk layer having high thermal inertia and conductivity. A stationary feeding chamber is located proximate to a bottom portion of the rotary wheel, the feeding chamber partitioned into a plurality of sectors for delivery of a selected pressurized feed gas into the channels of the rotary wheel as it rotates through the sectors. A stationary exit chamber is located proximate a top portion of the rotary wheel, the exit chamber partitioned into at least two sectors through which separate gas streams emerge. A motor is provided for rotating the rotary wheel. In a preferred embodiment, the sectors In the feeding chamber are fuel, air, fuel purging and air purging sectors.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 15, 2014
    Applicant: Massachusetts Institute of Technology
    Inventors: Ahmed F. Ghoniem, Zhenlong Zhao, Tianjiao Chen
  • Patent number: 8696349
    Abstract: The invention relates to a method for the combustion of a fuel using an oxygenated gas, in which a jet of fuel and at least two jets of oxygen-rich oxygenated gas are injected. According to the invention, the first jet of oxygen-rich oxygenated gas, known as the primary jet, is injected such as to be in contact with the jet of fuel and to produce a first incomplete combustion, the gases produced by said first combustion comprising at least one part of the fuel, and the second jet of oxygen-rich oxygenated gas is injected at a distance I1 from the jet of fuel such as to combust with a first part of the fuel present in the gases produced by the first combustion. Moreover, a low-oxygen oxygenated gas is injected at a distance I2 from the jet of fuel such as to combust with a second part of the fuel present in the gases produced by the first combustion, I2 being greater than I1.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 15, 2014
    Assignee: L'Air Liquide, Société Anonyme pour l'Étude et l'Éxploitation des Procédés Georges Claude
    Inventors: Bertrand Leroux, Remi Pierre Tsiava, Patrick Jean-Marie Recourt, Benoit Grand, Pascal Duperray, Loic Sylvestre, Mohand Amirat
  • Publication number: 20130340659
    Abstract: In a boiler having plurality of burners arranged on a furnace wall of a furnace, each burner includes a cylindrical fuel nozzle for injecting a mixture of fuel and carrier gas therefor into the furnace; one or more cylindrical air nozzles provided on the outer circumference of the nozzle for injecting combustion air into the furnace, and a wind box for supplying combustion air to the nozzles in common. The wind box is provided with openings through which combustion air flows in from one direction perpendicular to the axial direction of the burner, and is partitioned by a partition wall to form plurality of parallel flow paths for the air flowing in through the openings. Some of the plurality of flow paths are connected to an upper part of the combustion air nozzle, and the other flow paths are connected to a lower part of the nozzle.
    Type: Application
    Filed: February 22, 2011
    Publication date: December 26, 2013
    Applicant: BABCOCK-HITACHI KABUSHIKI KAISHA
    Inventors: Yusuke Ochi, Kouji Kuramashi, Kenji Kiyama, Hirofumi Okazaki
  • Publication number: 20130305968
    Abstract: The burner device for high-temperature air combustion according to the present invention is equipped with a thermal insulation portion (5) that is provided facing a furnace (1) and has a throat (6); a burner nozzle (9) that is provided at the axial center of this throat and that injects a pulverized coal mixed flow (38) into the furnace through the throat; a windbox (8) that is provided so as to house this burner nozzle; an air register (16) that is provided at the distal end of the burner nozzle and that injects low-temperature secondary air from the windbox to the throat; a high-temperature air nozzle (23), one end of which opens into the furnace through the heat insulation portion; and a combustion air switching means (16, 24) that switches between injecting low-temperature secondary air to the throat through the air register and injecting high-temperature secondary air to the furnace interior through the high-temperature air nozzle, in which in steady combustion, low-temperature secondary air is injected
    Type: Application
    Filed: January 27, 2012
    Publication date: November 21, 2013
    Inventors: Masato Tamura, Takahiro Kozaki
  • Publication number: 20130220189
    Abstract: A method for staged combustion in a combustor assembly includes introducing an oxidant stream and a fuel stream at a first location into a combustion chamber to produce a heated stream. A Liquid water stream and an additional oxidant stream, fuel stream or both are then introduced into the heated stream in at least one location along the heated stream downstream from the first location. The additional oxidant stream, fuel stream or both react in the heated stream to generate additional heat that vaporizes liquid water from the liquid water stream to water vapor.
    Type: Application
    Filed: February 28, 2012
    Publication date: August 29, 2013
    Inventor: Jeffrey A. Mays
  • Publication number: 20120255472
    Abstract: A burner assembly for combusting fuel in a combustion zone to reduce NOx emissions includes a water spray subassembly including a water outlet configured to direct water at an angle with respect to an axis of the burner assembly, the water outlet further configured to direct the water in a direction for mixing with the air upstream of the combustion zone. A method is also provided for combusting fuel in a combustion zone to reduce NOx emissions.
    Type: Application
    Filed: June 10, 2011
    Publication date: October 11, 2012
    Inventors: Norman R. Gordon, Alex L. Primas, Ronald J. Kosinski
  • Patent number: 8192195
    Abstract: Inorganic fiber production burner apparatus and methods of use are disclosed. One burner includes a refractory block adapted to be in fluid connection with sources of primary oxidant and fuel, the refractory block having a fuel and primary oxidant entrance end and a flame exit end, the flame exit end having a substantially rectangular flame exit having a width greater than its height, the refractory block defining a combustion chamber and a second chamber fluidly connecting the combustion chamber and the flame exit end; and an oxygen manifold fluidly connected to the combustion chamber and adapted to route oxygen to the combustion chamber through a plurality of passages through the refractory block. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: June 5, 2012
    Assignee: Johns Manville
    Inventors: Harley Allen Borders, Michael R. Nijakowski, William J. Thome, Raymond L. McKenzie
  • Patent number: 8186423
    Abstract: An apparatus for cooling a hot gaseous medium includes a vessel, wherein a bundle of pipes is disposed in a coolant compartment, and wherein a liquid coolant flows around the bundle. The pipes are mounted near upstream ends in a thermal shield and extend through openings in a support plate mounted at a distance from the thermal shield defining a front space between the thermal shield and the support plate in the vessel separated from the coolant compartment. The apparatus permits addition of liquid coolant to the front space. The openings in the support plate are larger than the pipes, defining an annular space. Liquid coolant flows co-current with the hot gaseous medium in the pipes from the front space to the coolant compartment. A skirt type extension surrounds the pipe in the front space to the support plate and having an opening at the thermal shield.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: May 29, 2012
    Assignee: Shell Oil Company
    Inventors: TeckSoon Lau, Tycho Agien Van Der Plas, Edwin Bernardus Wilhelmus Gerardus Voeten
  • Publication number: 20120129110
    Abstract: Methods and systems for conversion of a carbon containing fuel to CO2 and H2O. An air stream is fed to a first ion transport membrane unit obtaining a pure oxygen stream from a permeate side and an air stream with a reduced oxygen content from a retentate side. The air stream with a reduced oxygen content is fed to a second ion transport membrane unit and a gaseous first carbon containing fuel is fed to a permeate side of the second ion transport membrane. The first carbon containing fuel is reacted with oxygen transported through the second ion transport membrane forming an at least partially combusted first fuel. The at least partially combusted first fuel, at least a part of the pure oxygen stream and optionally a second carbon containing fuel is fed to a combustion chamber for combustion. An exhaust stream comprising essentially CO2 and H2O is obtained.
    Type: Application
    Filed: October 11, 2011
    Publication date: May 24, 2012
    Applicant: NEBB ENGINEERING AS
    Inventor: Martin Siljan
  • Patent number: 8172566
    Abstract: An apparatus for combustion of a liquid fuel, such as an atomizer or burner, and an associated method using the apparatus for combusting an atomized liquid fuel. The apparatus for combustion has an outer conduit, an inner conduit and a spray tip. The spray tip has a mixing chamber for receiving a liquid fuel and an atomizing gas, and an orifice for discharging the liquid fuel and atomizing gas mixture as an atomized liquid fuel. The inner conduit has external fins where at least some of the external fins contact the inner surface of the spray tip.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: May 8, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Matthew James Watson, Xiaoyi He
  • Patent number: 8152514
    Abstract: An oil/slurry burner with injection atomization for the gasification of solids-containing liquid fuels under high pressures of e.g. 80 bar (8 MPa) and high temperatures of e.g. 1200 to 1900 degrees centigrade in reactors with liquid slag removal is proposed, wherein a plurality of feeding elements disposed outside the annular duct concentrically with respect to the burner axis are provided for introducing liquid fuel and atomizing agent, the individual feeding elements being implemented intrinsically straight in the burner, inclined to the burner axis in the direction of the burner mouth, and ending at the burner mouth adjacent to the oxidant outlet. By introducing the liquid fuel and atomizing agent in individual completely implemented tubes with a corresponding nozzle, different fuels can be supplied simultaneously via the individual feeds and converted in a flame reaction.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: April 10, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Dietmar Degenkolb, Norbert Fischer, Christian Reuther, Manfred Schingnitz
  • Publication number: 20110207066
    Abstract: A flare apparatus for burning combustible gases. A flare tip unit comprises an inner member and an outer member defining an annulus therebetween. The annulus defines an annular gas passage through which combustible gas passes. Air moved by a motive force, preferably steam, passes through the inner member and a steam/air mixture exits an outlet of the inner member. The combustible gas and an air/steam mixture mixes in a premix zone between the inner member outlet and the exit opening of the outer member. The combustible gas/air/steam mixture is ignited for burning in the atmosphere above the exit opening. The flare apparatus may include a plurality of flare tip units.
    Type: Application
    Filed: May 6, 2011
    Publication date: August 25, 2011
    Inventors: Jianhui Hong, James Wilkins, Jeff William White, Roger L. Poe
  • Publication number: 20110120717
    Abstract: Methods and apparatus relate to recovering petroleum products from underground reservoirs. The recovering of the petroleum products relies on introduction of heat and solvent into the reservoirs. Supplying water and then solvent for hydrocarbons in direct contact with combustion of fuel and oxidant generates a stream suitable for injection into the reservoir in order to achieve such thermal and solvent based recovery.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: ConocoPhillips Company
    Inventors: David C. LaMont, James P. Seaba
  • Publication number: 20110104625
    Abstract: The present invention relates to the supplying power to burners for oxy-fuel combustion glass melting furnaces, including a fuel injecting means and a hot oxygen power supplying means, the dispensing of oxygen being carried out so as to develop a staged combustion, a fraction of the oxygen being concurrently injected into the fuel, said oxygen being supplied essentially without heating prior to the supplying thereof into the fuel injecting means.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 5, 2011
    Applicants: AGC Glass Europe, L'Air Liq Soc Anon P L'etude Et L' Exp Des Pro G C
    Inventors: Mohand Amirat, Johan Behen, Gabriel Constantin, Olivier Douxchamps, Benoit Grand, Remi Tsiava, Fabrice Wagemans
  • Publication number: 20110033809
    Abstract: The invention is a connection duct between the blower and a mixing device of a burner. The connection duct expands wedge-shaped along a first direction and diverts air from the blower to a second direction. The connection duct further comprises diverting means for diverting the air in a circular flow around the second direction corresponding to a longitudinal axis of the mixing device. The diverting means comprise a tube section with at least one inflow opening arranged in the peripheral wall of the diverting means. A truncated cone comprising a tapering section is arranged in the tube section so that the tapering section faces in the direction of the mixing device. A passage cross-section of the inflow opening can be adjusted by a tube arranged in the peripheral wall which can be rotated around the tube's longitudinal axis and bears against the internal surface of the tube section.
    Type: Application
    Filed: August 4, 2010
    Publication date: February 10, 2011
    Applicant: Dome Holding GmbH
    Inventor: THOMAS RÜTTEN
  • Publication number: 20110027732
    Abstract: The burner of a gas turbine includes two or more part cone shells arranged offset with respect to one another and defining a cone shaped chamber with longitudinal tangential slots for feeding air therein. A lance carrying a liquid fuel nozzle arranged centrally in the cone shaped chamber is also provided. A portion of the nozzle facing the cone shaped chamber is divergent in shape. A diffuser angle (?) between the wall of the nozzle and a longitudinal axis of the cone shaped chamber is less than 5°. A diverging portion of the nozzle has a diffuser length to nozzle diameter ratio comprised between 2-6. The nozzle diameter is the smaller diameter of the diverging portion.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 3, 2011
    Applicant: ALSTOM Technology Ltd
    Inventors: Pirmin SCHIESSEL, Bruno Schuermans, Zdenko Papa, Norbert Emberger, Adnan Eroglu, Rainer Conzelmann, Luca Tentorio
  • Patent number: 7781116
    Abstract: The present invention is a simulator used in initial system integration tests of a SOFC to test peripheral components with saved costs by replacing the costly SOFC with the simulator.
    Type: Grant
    Filed: January 10, 2006
    Date of Patent: August 24, 2010
    Assignee: Atomic Energy Council - Institute of Nuclear Energy Research
    Inventors: Yu-Ching Tsai, Yau-Pin Chyou
  • Publication number: 20100139324
    Abstract: An internal combustion burner including a combustion chamber supplied with fuel and with oxidant and at least two combustion devices supplied with oxidant and with fuel. Combining two combustion devices of distinct configurations, which respectively generate two distinct types of flames with a system for cooling the walls of the burner by introducing air along the walls, makes it possible to obtain a burner that supplies a combustion gas temperature of up to 1700° C., while at the same time being easily cooled and occupying very little space so that it can, for example, be housed in an existing installation used in the manufacture of rock wool or glass wool.
    Type: Application
    Filed: April 7, 2008
    Publication date: June 10, 2010
    Applicant: SAINT- GOBAIN ISOVER
    Inventors: Oleg Boulanov, Christopher Ellison
  • Publication number: 20100081098
    Abstract: A precombustor system to be used in conjunction with an oxy-fuel burner employing recycled flue gas is disclosed. A method of introducing streams into the precombustor to achieve desired improvements in flame properties is also disclosed.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 1, 2010
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Mark Daniel D'Agostini, Reed Jacob Hendershot, Aleksandar Georgi Slavejkov, Xiaoyi He
  • Publication number: 20100064986
    Abstract: The present invention provides a solid fuel burner, which, while rendering the capacity larger than that in the conventional art, can suppress an increase in an unignited region and thus can realize the prevention of an increase in NOx concentration in a combustion gas and the prevention of a lowering in combustion efficiency, and a combustion equipment and boiler including the burner. The burner includes a fuel-containing fluid supply nozzle (12) which supplies a fuel-containing fluid, from a connecting part in a fluid transfer flow passage (10) for transferring a fuel-containing fluid including a fuel and a medium for transfer of the fuel, toward an outlet part provided on the wall of a furnace (4).
    Type: Application
    Filed: March 27, 2007
    Publication date: March 18, 2010
    Applicant: BABCOCK-HITACHI KABUSHIKI KAISHA
    Inventors: Kenji Kiyama, Akira Baba, Takanori Yano, Osamu Okada, Hirofumi Okazaki, Kouji Kuramashi
  • Publication number: 20100003624
    Abstract: A combustor having an array of dilution holes it provided with an asymmetrically located trim port for injection a controlled volume of air into the combustor. The controlled volume mixes with fuel rich air near the combustor wall and improves the dilution of the combustion gases. The improved dilution reduces the formation of NOx.
    Type: Application
    Filed: May 21, 2009
    Publication date: January 7, 2010
    Applicant: ROLLS-ROYCE PLC
    Inventors: Robert A Hicks, Emmanuel VJ Aurifeille
  • Patent number: 7618595
    Abstract: An assembly is provided for purifying toxic gases from production processes by thermal conversion in a reactor chamber and subsequent treatment of reaction products with a sorption agent in a washing device in order to bind water-soluble reaction products and to elute solid reaction products. The reactor chamber has an external wall and an internal wall, the internal wall tapering at its base in the form of a funnel at a predetermined angle. A unit for thermal treatment of toxic gases is located on the reactor chamber, sealing the top of the chamber. An inner face of the internal wall of the reactor chamber comprises a film of water flowing downwards in a uniform manner. The exterior of the internal wall is surrounded by a cloak of water. A waste gas outlet and a connection for a water circuit are located at the lower end of the tapering internal wall.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: November 17, 2009
    Assignee: Centrotherm Clean Solutions GmbH & Xo. KG
    Inventors: Robert Michael Hartung, Volker Kinzig, Rolf Hartung
  • Patent number: 7581948
    Abstract: Inorganic fiber production burner apparatus and methods of use are disclosed. One burner includes a refractory block adapted to be in fluid connection with sources of primary oxidant and fuel, the refractory block having a fuel and primary oxidant entrance end and a flame exit end, the flame exit end having a substantially rectangular flame exit having a width greater than its height, the refractory block defining a combustion chamber and a second chamber fluidly connecting the combustion chamber and the flame exit end; and an oxygen manifold fluidly connected to the combustion chamber and adapted to route oxygen to the combustion chamber through a plurality of passages through the refractory block. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: September 1, 2009
    Assignee: Johns Manville
    Inventors: Harley Allen Borders, Michael R. Nijakowski, William J. Thome, Raymond L. McKenzie
  • Patent number: 7484956
    Abstract: Combustion of hydrocarbon fuel is achieved with less formation of NOx by feeding the fuel into a slightly oxygen-enriched atmosphere, and separating air into oxygen-rich and nitrogen-rich streams which are fed separately into the combustion device.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: February 3, 2009
    Assignee: Praxair Technology, Inc.
    Inventors: Hisashi Kobayashi, Lawrence E. Bool, William J. Snyder
  • Patent number: 7377771
    Abstract: The invention relates to an apparatus for the thermal treatment of process exhaust gases containing pollutants, which can be used for a very wide range of surface modification processes carried out under a vacuum. The intention is to achieve the object of thermally treating process exhaust gases containing pollutants in such a way that accumulations of particles on the inner wall of a combustion chamber and an undesirable adverse effect on the thermal conversion can be avoided with little outlay.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: May 27, 2008
    Assignee: DAS-Dunnschicht Anlagan Systeme GmbH
    Inventors: Wido Wiesenberg, Andreas Frenzel, Konrad Gehmlich, Horst Reichardt, Lothar Ritter, Corina Kloβ, Michael Hentrich
  • Patent number: 7335014
    Abstract: A method of extending the droplet half-life of water droplets in a combustion furnace by increasing the relative humidity in the droplets' environment; thereby reducing the evaporation rate of the water from the droplet and increasing the half-life of the droplets in the droplets' environment.
    Type: Grant
    Filed: December 20, 2003
    Date of Patent: February 26, 2008
    Assignee: Mobotec USA, Inc.
    Inventor: Brian S. Higgins
  • Patent number: 7273366
    Abstract: A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be conducted directly into the flame of the inner burner element (direct inject) or routed through the annular passageway and preheated, for injection at the flame or beyond. The burner elements may include solid or perforated cones mounted on their exits to enhance mixing and injection of the streams. The burner assembly may be configured as in inline duct burner. A wide range of contaminants may be processed because waste streams having primarily nonflammable or combustion inhibiting constituents may be processed.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 25, 2007
    Assignee: Soil-Therm Equipment, Inc.
    Inventor: Mark L. Sujata
  • Patent number: 7270539
    Abstract: A burner assembly for the destruction of noxious vapors and other waste streams includes an inner burner element in the form of a sudden expansion burner and an outer burner element that encircles the inner burner element and forms an annular passageway between the two elements. Waste vapors may be conducted directly into the flame of the inner burner element (direct inject) or routed through the annular passageway and preheated, for injection at the flame or beyond. The burner elements may include solid or perforated cones mounted on their exits to enhance mixing and injection of the streams. The burner assembly may be equipped with water injection nozzles for flash oxidation of contaminants in waste waters.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: September 18, 2007
    Assignee: Soil-Therm Equipment, Inc.
    Inventor: Mark L. Sujata
  • Patent number: 6986658
    Abstract: Method and apparatus for use in burners of furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving fuel and air, flue gas or mixtures thereof. A burner tip is mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip. At least one passageway has a first end at a second opening in the furnace and a second end in a primary air chamber adjacent the upstream end of the burner tube. The passageway also has structure for injecting steam into the passageway and a means for drawing flue gas from the furnace through the passageway.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 17, 2006
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: George Stephens, David B. Spicer
  • Patent number: 6910879
    Abstract: A method of combustion and a burner assembly wherein at least one fuel and at least one oxidizer are injected separately. The oxidizer comprises a primary oxidizer stream and a secondary oxidizer stream. The primary oxidizer stream is divided into at least two portions. One portion is injected close to the fuel whereby generating a first incomplete combustion. The second portion is injected downstream of the first injection point with the fuel source consisting of the remaining uncombusted fuel of the first incomplete combustion in addition to the fuel. The secondary oxidizer stream is injected downstream from the primary oxidizer stream, whereby resulting in combustion with the unreactive fuel gases remaining from the first combustion.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: June 28, 2005
    Assignee: L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Jacques Dugue, Thierry Legiret, Rémi Pierre Tsiava, Olivier Louedin
  • Patent number: 6840760
    Abstract: An improved flare burner for burning combustible gases in petroleum and petrochemical installations. A cylindrical shell has a closed bottom and an open top. A central opening in the bottom is connectable to a source of the gas to be burned. A plurality of linear steam/gas tubes is disposed within the shell, each tube extending to the open end of the shell and also extending through the shell bottom. A lower steam distribution sub-assembly below the shell bottom includes individual steam jets adjacent the ends of the tubes for educting air to the upper end of the tube. A pilot gas sub-assembly for igniting the flare gas is disposed within the shell. Gas to be burned is passed into the interior of the shell through the bottom opening and moves to the open end. Steam injected into the steam/air tubes educts air, and air and steam exit the tubes and mix with the gas to create a combustible mixture. The pilot light assembly provides an open flame which ignites the mixture.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: January 11, 2005
    Inventors: Michael R. Keller, Roger K. Noble, John A. Simmer
  • Patent number: 6786714
    Abstract: A delivery system for generating a sparging gas containing catalyst particles and delivering them to a flame zone of a combustion reaction is disclosed. A catalyst mixture receptacle for the delivery system includes a floating ball check valve on an air inlet to an inlet tube of the receptacle which is spaced from a vertical wall of the receptacle. A secondary splash chamber having an opening smaller than the body of the chamber is also included between the main body of the receptacle and the sparging gas outlet for the receptacle to reduce the opportunity for catalyst mixture in liquid form to reach the sparging gas outlet. An enrichment circuit is disclosed including a controller, pump, and a one-way check valve for adding additional sparging gas to a flame zone of a combustion process in times of added load. The receptacle may be mounted with a vibrator, such as the pump, to increase the consistency of the bubbles in the sparging process.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 7, 2004
    Inventor: James W. Haskew
  • Publication number: 20030175640
    Abstract: Method and apparatus for use in burners of furnaces such as those used in steam cracking. The apparatus includes a burner tube having a downstream end and an upstream end for receiving fuel and air, flue gas or mixtures thereof. A burner tip is mounted on the downstream end of the burner tube adjacent a first opening in the furnace, so that combustion of the fuel takes place downstream of the burner tip. At least one passageway has a first end at a second opening in the furnace and a second end in a primary air chamber adjacent the upstream end of the burner tube. The passageway also has structure for injecting steam into the passageway and a means for drawing flue gas from the furnace through the passageway.
    Type: Application
    Filed: March 14, 2003
    Publication date: September 18, 2003
    Inventors: George Stephens, David B. Spicer
  • Patent number: 6558153
    Abstract: A combustion method and burner system are disclosed herein. The burner system comprises: a fuel manifold comprising a housing, the housing defining an interior area comprising a chamber. The burner system comprises a set of injectors for injecting a fuel from the chamber into a stream of air to pre-mix the fuel and the air, the set of injectors disposed radially inward from the fuel manifold. The system includes a refractory located downstream of the fuel manifold, the refractory to shape a flame and the refractory comprising a plurality of channels for at least one of introducing air and combustion product into a combustion chamber, the combustion chamber located downstream of the refractory. The system can also include steam and/or water injection.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Aqua-Chem, Inc.
    Inventors: Wayne D. Schutz, Eugene A. Showers
  • Patent number: 6524097
    Abstract: Method and apparatus for continuation of combustion with an oxy-fuel combustion system when the supply of oxygen is temporally reduced or stopped. Air or oxygen enriched air and fuel are introduced into the device being heated in place of the oxy-fuel mixture to effect combustion and maintain the heating level in the furnace. Water cooling of the furnace gases is used to reduce the volume of exhaust gases when operating in the air or oxygen enriched air mode.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: February 25, 2003
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Bryan Clair Hoke, Jr., Aleksandar Georgi Slavejkov, Mark Daniel D'Agostini, Kevin Alan Lievre, Joseph Michael Pietrantonio
  • Patent number: 6499993
    Abstract: A combustor having a combustion liner and at least one combustor orifice assembly, the combustor orifice assembly comprising a boss, an orifice plate that defines an orifice, the orifice plate having a bottom surface that is adapted to be received by the boss, and a retaining ring, whereby the orifice plate is retained between the retaining ring and the boss.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: December 31, 2002
    Assignee: General Electric Company
    Inventors: Charles Evan Steber, Larry Lou Thomas, Mark William Pinson, Ronald Thomas Clawson
  • Publication number: 20020064742
    Abstract: A system for feeding over-fire air to a combustion chamber (10, 24, 42) of a steam or hot water generation plant of low-medium capacity, using solid, liquid or gaseous fuel or a combination thereof, comprising a main combustion air duct (5) supplied to a burner unit (11, 25, 43) in the combustion chamber and an over-fire air duct (12, 27, 44), which extends within said combustion chambers and is provided at its end with nozzle means (17, 27, 47) for said over-fire air.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 30, 2002
    Inventors: Sergio Ligasacchi, Enrico Tosi, Alessandro Birindelli
  • Patent number: 6394790
    Abstract: A combustion method for carrying out combustion with reduced generation of NOx wherein high velocity fuel and oxidant in a very low substoichiometric ratio are combusted and thereafter secondary oxidant mixes and combusts with the resulting combustion reaction products.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: May 28, 2002
    Assignee: Praxair Technology, Inc.
    Inventor: Hisashi Kobayashi
  • Patent number: 6367288
    Abstract: In furnaces for producing high purity fused silica glass boules, glass particles have a tendency to build-up adjacent the burner hole rim. It was discovered that unburned furnace gases containing silica particles where re-circulated in the furnace close to the burner hole rim and reacted with the oxygen of infiltrated air adjacent the burner hole, and thus deposited such particles in the form of a glassy build-up about the rim of the burner hole. In order to eliminate the source of oxygen adjacent the burner hole rim, a curtain of an inert gas is caused to flow through the burner hole between the sidewalls of the burner hole and the flame of the burner. Accordingly, the curtain of inert gas inhibits the combustion of the unburned hydrogen and carbon monoxide furnace gases adjacent the exit rim of the burner hole and thereby minimizes glass build-up about the burner hole rim.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 9, 2002
    Assignee: Corning Incorporated
    Inventors: Raymond E. Lindner, Robert E. McLay, Mahendra K. Misra, Michael H. Wasilewski
  • Patent number: 6347935
    Abstract: A round burner capable of being operated with reduced CO and NOx emissions includes a venturi tube positioned to direct a flow of air through the burner and into a combustion zone in a combustion chamber through an entrance in a wall of the combustion chamber. The venturi tube has inlet and outlet ends and a throat. The outlet end of the venturi tube has a larger internal diameter than either the inlet end or the throat and the same is positioned adjacent the entrance to the combustion chamber. The inlet end of the venturi tube is also positioned further from the entrance than the outlet end of the venturi tube. The burner may include a duct system that includes an inlet disposed in fluid communication with the combustion zone and an outlet disposed in fluid communication with the venturi tube adjacent the throat thereof.
    Type: Grant
    Filed: June 17, 1999
    Date of Patent: February 19, 2002
    Assignee: John Zink Company, L.L.C.
    Inventors: Edmund Schindler, Lev Tsirulnikov, John Guarco, Jon Moore, Michael Gamburg
  • Patent number: 6331110
    Abstract: Dilution sleeves are provided in radially aligned openings in the combustion liner and flow sleeve of a combustor for a gas turbine. The sleeves have a flange for seating on a collar of the flow sleeve about the opening therethrough enabling the dilution sleeve to extend through the aligned openings. A cover is removably mounted on the outer casing and a spring bears between the cover and the dilution sleeve flange to maintain the dilution sleeve in the openings. Dilution sleeves having different cross-sectional flow areas may be provided in lieu of initially installed dilution sleeves upon comparing measured emission levels with desired emission levels and ascertaining the desired increase or decrease in cross-sectional flow area through the dilution sleeves.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 18, 2001
    Assignee: General Electric Company
    Inventors: Charles Evan Steber, Harmon Lindsay Morton, Jacob Tussey McLeroy
  • Patent number: 6331107
    Abstract: A burner assembly having improved flame length and shape control is presented, which includes in exemplary embodiments at least one fuel fluid inlet and at least one oxidant fluid inlet, means for transporting the fuel fluid from the fuel inlet to a plurality of fuel outlets, the fuel fluid leaving the fuel outlets in fuel streams that are injected into a combustion chamber, means for transporting the oxidant fluid from the oxidant inlets to at least one oxidant outlet, the oxidant fluid leaving the oxidant outlets in oxidant fluid streams that are injected into the combustion chamber, with the fuel and oxidant outlets being physically separated, and geometrically arranged in order to impart to the fuel fluid streams and the oxidant fluid streams angles and velocities that allow combustion of the fuel fluid with the oxidant in a stable, wide, and luminous flame. Alternatively, injectors may be used alone or with the refractory block to inject oxidant and fuel gases.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: December 18, 2001
    Assignee: American Air Liquide, Inc.
    Inventor: Louis C. Philippe
  • Publication number: 20010023053
    Abstract: Method and apparatus for continuation of combustion with an oxy-fuel combustion system when the supply of oxygen is temporally reduced or stopped. Air or oxygen enriched air and fuel are introduced into the device being heated in place of the oxy-fuel mixture to effect combustion and maintain the heating level in the furnace. Water cooling of the furnace gases is used to reduce the volume of exhaust gases when operating in the air or oxygen enriched air mode.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 20, 2001
    Inventors: Bryan Clair Hoke, Aleksandar Georgi Slavejkov, Mark Daniel D'Agostini, Kevin Alan Lievre, Joseph Michael Pietrantonio
  • Patent number: 6234092
    Abstract: A process for the thermal treatment of incombustible liquids in a combustion space of a combustion apparatus by contacting the incombustible liquid with a supplementary fuel in the combustion space in the presence of at least one reactive gas. The process of the invention comprises feeding the incombustible liquid and the supplementary fuel into the combustion space (1) at different points, mixing the incombustible liquid with at least one reactive gas and the supplementary fuel with at least one inert gas prior to the contacting, and vaporizing the incombustible liquid and supplementary fuel prior to the contacting in the combustion space. The advantage of this invention is that environmentally harmful waste waters in particular are disposed of by burning these using a supplementary fuel. The required amounts of supplementary fuel are minimal in the process and only small amounts of nitrogen oxides, carbon monoxide and soot are generated.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: May 22, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Domschke, Andreas Joa, Klaus Steinebrunner
  • Patent number: 6196831
    Abstract: The invention relates to a combustion process for burning a fuel, in which the point of injection of each main oxidizer jet (7, 8) with respect to the point of injection of a fuel jet (4) closest to it is arranged a distance D away satisfying the following relation: D A > 5 ⁢   ⁢ and / or ⁢   ⁢ D B > 5 D being the minimum distance between the outer edge of the relevant oxidizer jet (7, 8) and the outer edge of the fuel jet (4) closest to it, at their respective points of injection, A and B being, respectively, the cross section of the main jet (7, 8) of the oxidizer and the cross section of the fuel jet, considered at their respective points of injection.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: March 6, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Jacques Dugue, Jean-Michel Samaniego, Bernard Labegorre, Olivier Charon
  • Patent number: 6193502
    Abstract: The fuel is fed centrally into a fire tube (3), where it is mixed with combustion air in a combustion zone. The air exits through first and second air line nozzles (4 or 5) which are arranged in two directly adjoining rows (6, 7) and inclined in the direction of counterflow at an angle of 60° to the axis of the fire tube. The distance (x) between the fuel nozzle (9) and the openings of the first air line nozzles (4) is 0.70 times the diameter of the fire tube. In addition, the second air line nozzles (5) extend into the fire tube by a distance (y) which is 0.17 times the diameter of the fire tube. The total cross-section of the second air line nozzles (5) is 0.6 times that of the first air line nozzles (4). A highly turbulent toroidal eddy forms inside the fire tube (3) which generates a very homogeneous mixture across the cross-section of said fire tube (3). This results in lower NOx values and even temperature distribution already inside the fire tube.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: February 27, 2001
    Assignee: Ruhrgas Aktiengesellschaft
    Inventors: Anatolij Vladimirovic Sudarev, Jevgenij Dimitrijevic Vinogradov, Jurij Ivanovic Zacharov, Stanislav Vesely, Gustav Poslusny, Karl Peters, Karl-Heinz Scholz, Erik Zizow
  • Patent number: 6126438
    Abstract: A burner apparatus comprises a conduit adapted to convey preheated oxidant and having outlet and inlet ends, and a conduit adapted to convey preheated fuel and having outlet and inlet ends. The conduit adapted to convey preheated fuel is substantially parallel to the conduit adapted to convey preheated oxidant. The conduit adapted to convey preheated oxidant is positioned substantially vertically above the conduit adapted to convey preheated fuel. The conduit adapted to convey preheated oxidant and the conduit adapted to convey preheated fuel each are positioned within its own respective elongate cavity in a refractory burner block. Each of the conduits are positioned in their respective cavity such that a substantially annular region is present between an outer surface of each conduit and its respective cavity. Each conduit inlet end extends through a respective plenum for receiving an ambient temperature fluid, the plenums adapted to pass the ambient temperature fluid into the respective annular regions.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: October 3, 2000
    Assignees: American Air Liquide, L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation des Procedes Georges Claude
    Inventors: Mahendra L. Joshi, Arnaud Fossen, Harley A. Borders, Remi P. Tsiava, Olivier Charon
  • Patent number: 6109911
    Abstract: A method and an arrangement for reducing emissions of nitrogen oxides in a combustion apparatus provided with a tubular furnace. The method comprises burning odor gases at first sub-stoichiometrically, and subsequently supplying additional air to the furnace (3) in the transverse direction thereof in such a manner that the final air ratio is over 1. The arrangement comprises an additional air duct (7) which extends to the furnace of the boiler and from which additional air is supplied to the furnace (3) in the transverse direction of the furnace (3).
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: August 29, 2000
    Assignee: Kvaerner Pulping Oy
    Inventors: Ari Tamminen, Risto Syrjalainen, Heikki Koivuniemi, Erkki Valimaki