Including Noncombustible Fluid Supply Means Patents (Class 110/297)
  • Patent number: 10106338
    Abstract: A delivery system deposits granular material being pneumatically conveyed within an entraining airflow to sequentially fill a storage silo from bottom to top. The delivery system has a series of vertical tubes and separators, vertically suspended and centered within the silo by a support, for conveying the entrained material upwardly from the bottom to the top of the silo. Each separator selectively separates the material from the airflow by choking the airflow entraining the material therewithin. Each separator automatically selects either to separate the entrained material therewithin and to deposit the separated material therefrom, or else to flow therethrough the entrained material without separation. The support has clamp assemblies, each having clamp halves and clamp brackets, wall brackets, and braces.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: October 23, 2018
    Inventor: Phillip Allan Douglas
  • Patent number: 9127839
    Abstract: A combustion apparatus has a burner, a combustion box containing therein a heat exchanger, an exhaust passage in fluid communication with the combustion box, a fan for supplying the burner with combustion air, and a predetermined length of air suction duct in fluid communication with a suction opening formed in a fan casing. The air suction duct has: on a downstream end thereof, an outlet cylindrical portion which is smaller in diameter than a diameter of the suction opening in the fan casing and which lies opposite to the suction opening; and a flange portion which overhangs radially outward from a perimeter of the air suction duct adjacent to the outlet cylindrical portion into contact with that peripheral portion of the fan casing which forms the suction opening. The flange portion is provided with an auxiliary suction opening in fluid communication with a space surrounding the outlet cylindrical portion.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: September 8, 2015
    Assignee: RINNAI CORPORATION
    Inventors: Fumio Tanaka, Kazuyuki Akagi, Hideo Okamoto
  • Publication number: 20150059402
    Abstract: According to certain embodiments of the invention, a gas containing at least 50% of carbon dioxide is cooled in a first exchanger so as to produce a cooled fluid, a liquid derived from the cooled fluid is sent to a distillation column to be separated therein, a head gas is withdrawn from the distillation column and reheated in the first exchanger, a vat liquid, which is richer in carbon dioxide than the gas containing at least 50% of carbon dioxide, is withdrawn and at least a portion thereof is heated in the first exchanger, at least a first portion of the vat liquid is vaporized in the first exchanger in order to produce a vaporized portion, the vaporized portion is sent back to the column and an NOx removal column is supplied with the liquefied cycle gas produced by vaporizing and reliquefying the vat liquid from the column.
    Type: Application
    Filed: March 5, 2013
    Publication date: March 5, 2015
    Inventors: Alain Briglia, Arthur Darde, Frederick Lockwood, Xavier Traversac
  • Publication number: 20150041718
    Abstract: The invention is directed to a burner for the gasification of a solid fuel, comprising a burner front having an opening for discharging a solid fuel, wherein the opening for discharging the solid fuel is fluidly connected to a central passage way and wherein the central passage way has a downstream part wherein the diameter of the passage way increases over a first length and subsequently decreases over a second length terminating at the burner front and wherein inside the downstream part of the central passage way a hollow member is positioned, and wherein the hollow member has an internal increasing diameter and inner decreasing diameter aligned with the increasing and decreasing diameter of the hollow member and wherein the connecting conduits have a discharge opening positioned in the diverging part of the hollow member.
    Type: Application
    Filed: September 26, 2011
    Publication date: February 12, 2015
    Applicant: SHELL OIL COMPANY
    Inventors: Johannes Hermanus Maria Disselhorst, Franciscus Gerardus Van Dongen
  • Publication number: 20150013300
    Abstract: A boiler system having a series of boilers. Each boiler includes a shell having an upstream end, a downstream end, and a hollow interior. The boilers also have an oxidizer inlet entering the hollow interior adjacent the upstream end of the shell and a fuel nozzle positioned adjacent the upstream end of the shell for introducing fuel into the hollow interior of the shell. Each boiler includes a flue duct connected to the shell adjacent the downstream end for transporting flue gas from the hollow interior. Oxygen is delivered to the oxidizer inlet of the first boiler in the series. Flue gas from the immediately preceding boiler in the series is delivered through the oxidizer inlet of each boiler subsequent to the first boiler in the series.
    Type: Application
    Filed: June 3, 2014
    Publication date: January 15, 2015
    Applicant: Washington University
    Inventors: Richard L. Axelbaum, Benjamin M. Kumfer, Fei Xia, Akshay Gopan, Bhupesh Dhungel
  • Patent number: 8915731
    Abstract: A burner has a fuel/oxidant nozzles and a pair of dynamical lances spaced on either side thereof that inject a jet of fuel and primary oxidant along a fuel injection axis, and jets of secondary oxidant, respectively. Jets of actuating fluid impinge against the jets of secondary oxidant to fluidically angle the jets of secondary oxidant away from the fuel injection axis. The action of the angling away together with staging of the oxidant between primary and secondary oxidant injections allows achievement of distributed combustion conditions.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: December 23, 2014
    Assignees: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc., Air Liquide Advanced Technologies, U.S. LLC
    Inventors: Taekyu Kang, Vivek Gautam, Rajeev S. Prabhakar, Benoit Grand, Bertrand Leroux, Magnus Mortberg, Nicolas Docquier
  • Publication number: 20140360201
    Abstract: In a method for supplying nitrogen to a combustion chamber, gaseous nitrogen (9) is drawn off from an air separation unit (7) at a first pressure, the nitrogen is compressed in at least two stages (C1, C2) of a nitrogen compressor and sent to a combustion chamber (25) at a second pressure, which is the output pressure of the last stage (C3) of the nitrogen compressor, between two stages of the nitrogen compressor the nitrogen is humidified by direct contact in passing through a contactor (17) supplied at its top with water, and the humidified nitrogen is compressed in at least one stage of the nitrogen compressor and sent to the combustion chamber.
    Type: Application
    Filed: November 23, 2012
    Publication date: December 11, 2014
    Inventors: Richard Dubettier-Grenier, Sylvain Gerard, Loic Joly
  • Publication number: 20140295367
    Abstract: Provided is a technology for uniformly increasing atmosphere temperature while rapidly achieving a desired uniform atmosphere composition. A combustion apparatus is provided with: a combustion part including a combustion space with a combustible gas inlet which is opened toward the combustion space for allowing the entry of a combustible gas, an air inlet which is opened toward the combustion space for allowing the entry of air, and a combustion gas outlet for discharging a combustible gas to the outside; and a regulated gas through channel part including a regulated gas outlet for discharging the gas prepared into a desired composition to the outside, the regulated gas outlet located adjacent to the combustion gas outlet and having an opening facing the combustion gas immediately after being discharged from the combustion gas outlet.
    Type: Application
    Filed: June 13, 2014
    Publication date: October 2, 2014
    Inventors: Shigeru HANZAWA, Kouji OGURA, Hitoshi MORI
  • Patent number: 8826834
    Abstract: A method and apparatus for incinerating a medical waste material. The method includes introducing a volume of the medical waste material into a plasma zone of a non-thermal plasma generator. The method also includes introducing a volume of oxidizer into the plasma zone of the non-thermal plasma generator. The method also includes generating an electrical discharge between electrodes within the plasma zone of the non-thermal plasma generator to incinerate the medical waste material.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 9, 2014
    Assignee: Ceramatec, Inc.
    Inventors: Joseph J. Hartvigsen, Michele Hollist, Singaravelu Elangovan, Piotr Czernichowski
  • Publication number: 20140238282
    Abstract: A bonfire oven has a body placeable on the ground. The body has a combustion cabinet and an auxiliary equipment cabinet. A burner contained in the combustion cabinet has a fire grate, a side plate extending upward from the fire grate, a top plate opposite to the fire grate, a blowing space beneath the fire grate, and a hearth defined by the fire grate and the side plate. A fuel supply mechanism, an electrical equipment and an air blower is contained in the auxiliary equipment cabinet. The bonfire oven further has a flame portion on the top which is a flame roaring space formed by at least one piece of high temperature resistant glass.
    Type: Application
    Filed: October 11, 2011
    Publication date: August 28, 2014
    Inventors: Hongfeng Zhu, Qianxi Chen
  • Publication number: 20140234788
    Abstract: Contemplated configurations and methods are presented for effectively controlling the temperature in an oxy-fuel combustion system. Contemplated systems preferably introduce water independent of the fuel and oxygen into the combustion chamber. Water is injected through one or more nozzles, wherein water is atomized or sprayed, creating boundary layer cool zones in a boiler system and wherein water is recovered.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Applicant: Fluor Technologies Corporation
    Inventors: Dennis W. Johnson, James H. Brown, Bo Oscarsson, Jon Peeples, Dennis Malone, Randy Grantz
  • Publication number: 20140230703
    Abstract: An oxygen fueled integrated pollutant removal and combustion system includes a combustion system and an integrated pollutant removal system. The combustion system includes a furnace having at least one burner that is configured to substantially prevent the introduction of air. An oxygen supply supplies oxygen at a predetermine purity greater than 21 percent and a carbon based fuel supply supplies a carbon based fuel. Oxygen and fuel are fed into the furnace in controlled proportion to each other and combustion is controlled to produce a flame temperature in excess of 3000 degrees F. and a flue gas stream containing CO2 and other gases. The flue gas stream is substantially void of non-fuel borne nitrogen containing combustion produced gaseous compounds.
    Type: Application
    Filed: April 2, 2014
    Publication date: August 21, 2014
    Inventors: Brian R. Patrick, Thomas L. Ochs, Cathy A. Summers, Danylo B. Oryshchyn, Paul C. Turner
  • Publication number: 20140223909
    Abstract: A comburant gas supply system is provided for a combustion boiler/turbine of a thermal power plant, a combustion boiler/turbine system and a thermal power plant. The gas supply system has an air separation module to separate and output an oxygen rich gas from an input air supply; a comburant gas storage module fluidly connected to the output of the air separation module for storage in liquid state of separated oxygen rich gas; a comburant gas supply module to supply the oxygen rich gas to the combustion boiler selectively from the air separation system and/or the comburant gas storage system. The air separation module has an oxygen rich gas output capacity determined from a demand rating for the combustion boiler/turbine adjusted with reference to a load factor across a predetermined operating period and/or the ASU size is increased to provide longer term energy storage capacity.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 14, 2014
    Applicant: DOOSAN BABCOCK LIMITED
    Inventors: Konrad Jerzy Kuczynski, Douglas John Spalding
  • Patent number: 8795416
    Abstract: An in-situ forced oxidation wet flue gas desulfurization apparatus, method and arrangement for utilization with oxy-fuel combustion power plants. The apparatus is a tower-like structure having a flue gas scrubbing zone and a reaction zone located subjacent to the gas scrubbing zone. A sulfur oxide absorbing liquid slurry is supplied to the gas scrubbing zone to react with and scrub the sulfur oxides from the flue gas. The partially reacted liquid slurry reagent and the scrubbed products drain into the reaction zone, rising to a set level. Oxidation air is introduced into the liquid slurry in the reaction zone to force the in-situ oxidation of sulfur compounds collected in the reaction zone.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: August 5, 2014
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventors: Dennis K. McDonald, Kevin J. Rogers
  • Patent number: 8789478
    Abstract: Provided is a dry distillation and gasification typed incinerator capable of saving time and fuels required for combustion aid. In a first phase when a waste material A stored in a dry distillation furnace 1 is ignited till a fire bed is formed, the dry distillation and gasification typed incinerator supplies air to the dry distillation furnace 1 through an air supply passage 13. When the waste material A is in a continuous combustion state (a second phase), the oxygen supply to the dry distillation furnace 1 is switched from the air supply by the air supply passage 13 to the concentrated oxygen supply by an oxygen supply passage 15.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 29, 2014
    Assignee: Kinsei Sangyo Co., Ltd.
    Inventor: Masamoto Kaneko
  • Publication number: 20140202365
    Abstract: The invention relates to a combustion apparatus, in particular to a burner for the combustion of carbonaceous fuel.
    Type: Application
    Filed: August 17, 2012
    Publication date: July 24, 2014
    Applicant: DOOSAN BABCOCK LIMITED
    Inventors: David William Sturgeon, Gerard John Hesselmann
  • Publication number: 20140196638
    Abstract: Disclosed is a combustion device and method for combusting granular, solid fuel, for example wood pellets. The combustion device includes a chamber having an outer wall and an inner wall, which inner wall divides the chamber into a combustion air space and a combustion chamber. Further, the combustion device includes at least one blast apparatus for providing primary combustion air and secondary combustion air and a rotating unit for rotating the combustion chamber. The inner surface of the combustion chamber includes a number of steps for lifting combustion fuel in the combustion chamber, when the combustion chamber is rotated. Further, primary combustion air is provided into the combustion chamber for contributing combustion of combustion fuel and for moving combustion fuel on the steps. In addition, secondary combustion air is provided into the combustion chamber for removing completely combusted fuel and/or combustion gases from the combustion chamber.
    Type: Application
    Filed: September 6, 2012
    Publication date: July 17, 2014
    Applicant: Konepaja M. Pappinen Oy
    Inventors: Matti Pappinen, Mikko Pappinen
  • Publication number: 20140182491
    Abstract: Improved combustion of biomass is achieved by injected first and second streams of biomass from a burner where the first stream of biomass has a median particle size larger than the biomass of the second stream and oxygen is injected with the first stream to provide an oxygen-enriched environment around the larger median sized particles. The oxygen-enriched environment is achieved either by injecting the oxygen directly into the first stream or by premixing the oxygen with the conveying air of the first stream.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Gorges Claude
    Inventor: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Georges Claude
  • Publication number: 20140154634
    Abstract: Disclosed is a method for enhanced fuel combustion to maximize the capture of by-product carbon dioxide. According to various embodiments of the invention, a method for combusting fuel in a two-stage process is provided, which includes in-situ oxygen generation. In-situ oxygen generation allows for the operation of a second oxidation stage to further combust fuel, thus maximizing fuel conversion efficiency. The integrated oxygen generation also provides an increased secondary reactor temperature, thereby improving the overall thermal efficiency of the process. The means of in-situ oxygen is not restricted to one particular embodiment, and can occur using an oxygen generation reactor, an ion transport membrane, or both. A system configured to the second stage combustion method is also disclosed.
    Type: Application
    Filed: November 22, 2013
    Publication date: June 5, 2014
    Applicant: Saudi Arabian Oil Company
    Inventors: Tidjani NIASS, Mourad V. YOUNES
  • Patent number: 8689708
    Abstract: Method and device for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding element (11), to be fed to an inlet opening (11a) in a burner device (10), where the burner device (10) includes a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The first inlet (13a) for oxidant is arranged in the form of a first opening arranged by the inlet opening, through which the oxidant is caused to flow out, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe and out through the burner orifice (17), and water vapour is added to the oxidant before the oxidant reacts with the fuel.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: April 8, 2014
    Assignee: AGA AB
    Inventors: Tomas Ekman, Anders Lugnet
  • Publication number: 20140083478
    Abstract: [Problem] To provide a combustion device of high combustion efficiency in which additional charging of combustion material containing solids is also possible, and an electric power-generating device using same. [Solution] The combustion method that burns combustion material inside a combustion device comprises: a process of charging the combustion material in the combustion chamber of the combustion device; a process of igniting and burning said combustion material; a process of supplying air or combustion-aiding gas (called “air, etc.” below) to the flame resulting from the combustion of said combustion material from outside of the flame; a process of secondary combustion of the combustion material by said air, etc.; and a process of smoke exhaustion; and in particular, comprises a process of additionally charging combustion material that at least contains solids into said combustion chamber during combustion of the combustion material.
    Type: Application
    Filed: October 26, 2011
    Publication date: March 27, 2014
    Applicant: HOKKAIDO TOKUSHUSHIRYOU KABUSHIKIKAISHA
    Inventor: Kazuhiro Onose
  • Publication number: 20140080073
    Abstract: A combustion system for operational connection to an energy conversion system and a method of providing thermal energy to the energy conversion system. The system comprises a combustor to be oxy-fired at above atmospheric pressure, using solid, liquid or gaseous fuels, with a supply of oxygen and supercritical carbon dioxide. The combustion gases from the combustor are delivered to a heat exchanger which interfaces with the energy conversion system. Temperatures in the combustor, and the delivery temperature to the heat exchanger, are controlled by selective recirculation of at least part of the combustion gases to the combustor, and by modulating the supply of oxygen and fuel to the combustor. Any combustion gases which are not recirculated are processed to separate carbon dioxide for use or sequestration. The system and method substantially eliminate emissions of carbon dioxide, while providing a highly efficient supply of thermal energy to the energy conversion system.
    Type: Application
    Filed: May 24, 2011
    Publication date: March 20, 2014
    Inventors: Kourosh Etemadi Zanganeh, William John Pearson, Milenka Mitrovic, Ahmed Shafeen
  • Publication number: 20140076214
    Abstract: A plant for the treatment of materials, in particular waste materials and refuse, comprises a combustion reactor to which the material to be treated can be supplied. The combustion reactor has an input for a combustion supporter comprising oxygen and an output for the gases that are produced during the combustion of the materials inside the reactor and, in use, is substantially isothermic or quasi-isothermic at high or very high temperature, and without substantial oxygen deficit, in all of its parts. A portion of the combustion gases is recirculated and mixed with the combustion supporter to bring about a high degree of opacification thereof, which is increased by increasing the total pressure of the combustion chamber. The substances which cannot be gasified inside the reactor are immediately fused. The parameters of the gases at the output from the reactor are constantly measured by sensors with response-time characteristics of about 2 seconds.
    Type: Application
    Filed: November 14, 2013
    Publication date: March 20, 2014
    Inventors: Massimo MALAVASI, Edoardo Rossetti
  • Publication number: 20140065559
    Abstract: A pressurized oxy-combustion circulating fluidized bed power plant having a circulating fluidized bed boiler is provided. A combustion chamber of the boiler is in fluid communication with a separator and configured so that solids produced during combustion enter the separator. The power plant further includes an air separation unit that is in fluid communication with the combustion chamber. The air separation unit is configured to supply substantially pure oxygen to the combustion chamber at a pressure greater than 1 bar. An external heat exchanger is in fluid communication with the separator and in fluid communication with the combustion chamber. The external heat exchanger is configured so that a portion of the solids received in the separator pass through the external heat exchanger and transfer heat to a working fluid, after which the solids are returned to the combustion chamber to moderate or control the temperature in the combustion chamber.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: ALSTOM Technology Ltd.
    Inventor: Glen D. Jukkola
  • Publication number: 20140057215
    Abstract: A combustion furnace and a method of its operation are described. The furnace comprises a chamber defining a combustion volume having at least one primary inlet for fuel and combustion supporting gases and at least one primary outlet for combustion product gases, which chamber is provided with one or more additional ports, for example in fluid communication with a supply of gas for secondary gas flow, allowing for secondary gas flow into and/or out of the combustion volume.
    Type: Application
    Filed: December 16, 2011
    Publication date: February 27, 2014
    Applicants: POWER SYSTEMS SYNETICS LIMITED, DOOSAN BABCOCK LIMITED
    Inventors: Konrad Jerzy Kuczynski, David James Adams
  • Publication number: 20140020607
    Abstract: An apparatus and method are provided for controlling the introduction of air into a burner. More particularly, the invention provides for a damper system that controls the introduction of air into a burner system by altering the size of a peripheral flow path for the introduction of air into the plenum of the burner.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Applicant: John Zink Company, LLC
    Inventors: Erwin M. Platvoet, Thomas M. Korb, Michel Sean McKinney, Ronnie Glen Taylor, Chad Nathan Carroll
  • Publication number: 20130340689
    Abstract: A combustion device includes a device main body having a combustion chamber installed above a cyclone melting furnace configured to combust a pyrolysis gas generated from a waste material after incineration while turning the pyrolysis gas, and configured to combust an unburnt gas discharged from the cyclone melting furnace. Further, the combustion device includes a plurality of sidewall boiler water pipes configured to cover a sidewall of the device main body from a periphery thereof and extending along the sidewall throughout upward and downward directions of the device main body.
    Type: Application
    Filed: March 18, 2011
    Publication date: December 26, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENVIRONMENTAL & CHEMICAL ENGINEERING CO., LTD.
    Inventors: Jun Sato, Toshimasa Shirai, Yoshihisa Saito, Norio Yoshimitsu, Yasunori Terabe
  • Patent number: 8607718
    Abstract: A combustion air system particularly useful for Kraft process recovery boilers or soda process recovery boilers has a level of liquor air ports located above the black liquor guns, and multiple levels of tertiary air formed by substantially vertically aligned tertiary air ports located above the black liquor guns. The liquor air ports and the tertiary air ports are on the same opposing walls of the furnace and are substantially vertically aligned with air ports in the same wall at different levels. The liquor air ports are located just above the black liquor guns, within a range of about ½ foot to about four feet. The tertiary air ports are laterally offset with respect to the tertiary air ports on the opposing wall of the furnace.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: December 17, 2013
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventor: Richard A. Wessel
  • Patent number: 8607717
    Abstract: The present invention relates to a regulated two stage thermal oxidation of waste and applications to use such a process for energy generation. A system and a method are provided comprising a set up of one or more gasification chambers, which are connected via ductwork to a combustion chamber to burn the waste material. The waste is loaded into the gasification chamber(s) and ignited there and the gas, which is generated by the sub-stoichiometric combustion in the gasification chamber is fully combusted in the secondary combustion chamber at a very high temperature. The time used for the burn down period is decreased and controlled by several air and gas flow factors of the system of the present invention.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: December 17, 2013
    Assignee: WTE Waste To Energy Canada, Inc.
    Inventor: Fridfinnur Einarsson
  • Publication number: 20130319299
    Abstract: In a boiler, a heat exchanger provided in one of two flow paths formed by partitioning a downstream portion of a flow path for exhaust gas discharged from a furnace has a smaller total heat transfer area than a heat exchanger provided in the other of the two flow paths; the exhaust gases discharged from the flow paths to outside the boiler are introduced, without being mixed, into an air heater downstream of the boiler; and, in the air heater, the heat of the exhaust gases is transferred to the primary air and the secondary air so as to heat combustion air.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 5, 2013
    Applicant: Hitachi, Ltd.
    Inventors: Masato HANDA, Yoshiharu HAYASHI, Tsuyoshi SHIBATA
  • Publication number: 20130312645
    Abstract: A heating apparatus can have a sealed combustion chamber and a burner. The heating apparatus can have an air shutter that controls the amount of air that mixes with fuel directed toward the burner. The air shutter can be controlled by rotating a shaft that connects to the air shutter. The heating apparatus can also have a system of channels along its front face which direct air along the front face.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 28, 2013
    Applicant: CONTINENTAL APPLICANES, INC. D.B.A. PROCOM
    Inventor: CONTINENTAL APPLIANCES, INC. D.B.A PROCOM
  • Publication number: 20130291772
    Abstract: An oxygen combustion system includes a boiler to burn fuel using combustion gas composed of oxygen-rich gas and circulating flue gas, a dust remover disposed in a flue through which flue gas discharged from the boiler flows, a second flue leading the combustion gas to the boiler, the combustion gas being made by mixing the circulating flue gas extracted downstream of the dust remover with the oxygen-rich gas, a combustion gas heater exchanging heat between the flue gas flowing between the boiler and dust remover and the combustion gas flowing through the second flue, and a flue gas cooler disposed between the heater and the dust remover to cool the flue gas. A control unit controls at least one of a flow rate and cooling medium temperature of the flue gas cooler such that temperature of the flue gas introduced into the dust remover will be between 90° C. and 140° C.
    Type: Application
    Filed: September 30, 2011
    Publication date: November 7, 2013
    Applicant: BABCOCK-HITACHI KABUSHIKI KAISHA
    Inventors: Toshihiko Mine, Kenji Kiyama, Koji Kuramashi, Kenichi Ochi, Hirofumi Okazaki
  • Publication number: 20130276723
    Abstract: A ground supported single drum power boiler is described combining a refractory lined and insulated V-Cell floor; refractory lined and insulated combustion chamber; integrated fuel chutes configured to pre-dry wet solid fuel; top mounted fuel bin; internal chamber walls; configurable combustion air systems; and a back pass with after-burner ports and cross flow superheaters. The boiler can be configured in pre-assembled modules to minimize the field construction time and cost. An alternative embodiment is adaptable as a gasifier.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 24, 2013
    Inventors: Daniel R. Higgins, Eugene Sullivan
  • Patent number: 8555797
    Abstract: Disclosed herein is a NOx reducing system comprising a first inner conduit in fluid communication with a reactant source; and a first outer conduit comprising an open end for receiving the first inner conduit and a closed end; the first outer conduit comprising a port for discharging reactant from the reactant source into an exhaust gas stream. Also disclosed herein is a NOx reducing system comprising a conduit comprising a closed end and an open end that is in fluid communication with a reactant source; the conduit comprising a port for discharging reactant from the reactant source into an exhaust gas stream; the port being located on a downstream surface of the first outer conduit.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: October 15, 2013
    Assignee: Alstom Technology Ltd
    Inventor: Iqbal F. Abdulally
  • Publication number: 20130263766
    Abstract: Method and apparatus for burning oil from an oil release in a body of water. A mixture of oil and water is collected from the surface of the body of water and separated into an oil-enriched portion and a water-enriched portion. The oil-enriched portion is passed to a burner where the oil-enriched portion is combusted with an oxygen-containing gas having an oxygen concentration of at least 25 volume % oxygen.
    Type: Application
    Filed: April 5, 2012
    Publication date: October 10, 2013
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Tunc Goruney, Xianming Jimmy Li, Paul M. Ashline
  • Publication number: 20130255551
    Abstract: A splitter divides a flow of low heating value biomass into a central stream and an annular stream. A stable flame may be achieved by combusting the central stream with oxygen. This avoids the use of costly fossil fuels or biomass (that have higher heating values than the biomass fuel) as an auxiliary fuel for achieving a stable flame.
    Type: Application
    Filed: May 24, 2012
    Publication date: October 3, 2013
    Applicants: American Air Liquide, Inc., L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Yuan XUE, Remi Pierre Tsiava, Chendhil Periasamy, Jiefu Ma
  • Publication number: 20130260325
    Abstract: A gas boiler and a method of adjusting output of the gas boiler by adjusting mixture ratio of air and gas for combustion in proportion to an output value of the boiler, and continuously changing the mixture regardless of the boiler output. The gas boiler includes a ventilator, a gas valve, a burner, a combustion chamber, a heat exchanger, and an exhaust gas hood. The inlet of the ventilator includes an output adjusting device having an air inlet; an air adjustment valve; a gas outlet; a gas adjustment valve that adjusts the gas passing through the gas outlet; and a valve driving unit that drives the air adjustment valve and the gas adjustment valve. Output of the burner is continuously adjusted by adjusting distance between the air adjustment valve and the gas adjustment valve, and distance between the air inlet and the gas outlet.
    Type: Application
    Filed: August 19, 2011
    Publication date: October 3, 2013
    Applicant: Kyungdong Navien Co., Ltd.
    Inventor: Tae-Sik Min
  • Publication number: 20130255257
    Abstract: Disclosed herein is a system comprising a compressor in mechanical communication with a turbine; the compressor being operative to produce compressed air; a premixer; the premixer being operative to mix a fuel with the compressed air; a carbonator being located downstream of the premixer; the carbonator being operative to receive a mixture of carbon dioxide and syngas and to convert a metal oxide into a metal carbonate by reacting it with the carbon dioxide; a calciner; the calciner being operative to receive the metal carbonate from the carbonator; and to dissociate carbon dioxide from the metal carbonate; and a combustor; the combustor being located downstream of the carbonator; where the combustor is operative to combust syngas received from the carbonator.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 3, 2013
    Applicant: ALSTOM TECHNOLOGY LTD.
    Inventors: Gian-Luigi Agostinelli, Peter Stuttaford, Richard Carroni, Michal Bialkowski
  • Patent number: 8544394
    Abstract: Method for reducing a formation of nitrogen oxide on a primary side of a furnace and reducing or avoiding nitrous oxide and ammonia slip in an offgas of the furnace in which a fuel is burned in a combustion process having at least two stages. The method includes passing a fuel consecutively through each of a plurality of bed areas of a combustion bed of the furnace. A primary gas including oxygen is fed individually to each of the bed areas so as to burn the fuel in the combustion chamber of the furnace. A secondary gas including oxygen is introduced into a downstream offgas burn-out zone, so as to after-burn incompletely burned offgas components formed during the burning of the fuel.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: October 1, 2013
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventor: Hans Hunsinger
  • Publication number: 20130252184
    Abstract: To inhibit corrosion of water wall tubes of a boiler and stabilize combustion on a burner during oxygen combustion operation, a boiler combustion system includes a boiler equipped with a burner and a two-staged combustion gas input port; a flue gas supply fan extracting flue gas from a flue gas treatment system via a flue gas circulation line; a combustion gas supply line, fuel carrier gas supply line, and two-staged combustion gas supply line branched off from the flue gas circulation line downstream of the flue gas supply fan; an oxygen supply line supplying oxygen-rich gas to the combustion gas supply line and fuel carrier gas supply line; combustion air supply fans; a switching unit switching operation between the flue gas supply fan and the combustion air supply fans; and dampers regulating gas flow rates on the combustion gas supply line and the two-staged combustion gas supply line, respectively.
    Type: Application
    Filed: October 12, 2011
    Publication date: September 26, 2013
    Applicants: FORTUM CORPORATION, BABCOCK-HITACHI KABUSHIKI KAISHA
    Inventors: Hitoshi Wakamatsu, Takahiro Marumoto, Toshihiko Mine, Pauli Dernjatin
  • Publication number: 20130233213
    Abstract: Described herein are embodiments of systems and methods for oxidizing gases. In some embodiments, a reaction chamber is configured to receive a fuel gas and maintain the gas at a temperature within the reaction chamber that is above an autoignition temperature of the gas. The reaction chamber may also be configured to maintain a reaction temperature within the reaction chamber below a flameout temperature. In some embodiments, heat and product gases from the oxidation process can be used, for example, to drive a turbine, reciprocating engine, and injected back into the reaction chamber.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 12, 2013
    Applicant: FLEXENERGY, INC.
    Inventors: Richard MARTIN, Jeffrey ARMSTRONG, Douglas HAMRIN
  • Patent number: 8522698
    Abstract: In a combustible energy recycling system and its method, the system includes an airtight incinerator body, a gas intake module and a blower. The incinerator body is filled with a combustible waste material, and the gas intake module installed in the incinerator body includes gas intake pipes, and one of the gas intake pipes is an ignition pipe for igniting the waste material in the incinerator body for a smoldering combustion, and an air outlet pipe of the blower is interconnected to the gas intake module for guiding outside air into the incinerator body, such that the outside air can move slowly upward with a high-temperature dense smoke produced in the smoldering combustion and surround every cross-section in the incinerator body for a uniform smoldering combustion, and a gas containing combustible energy in the dense smoke can be guided to a gas recycling mechanism for recycling and reusing the gas.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: September 3, 2013
    Assignee: Hung Chih Corporation Limited
    Inventor: Huan-Ho Lo
  • 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
  • Patent number: 8505471
    Abstract: A burning equipment for improving burning efficiency with a simple structure. The burning equipment includes a burning chamber having a top plate section and a bottom plate section; a first burn-promoting plate extending downward from the top plate section until the lower end reaches a prescribed height from the bottom plate section, dividing the burning chamber into a primary burning chamber and a secondary burning chamber, and having a plurality of through-holes; and an air outlet being provided to the secondary burning chamber. The air outlet is provided to the top plate section. A second burn-promoting plate extends downward from the top plate section, in the secondary burning chamber, until the lower end reaches a prescribed height from the bottom plate section. It divides an opening of the air outlet and also has a plurality of through-holes.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: August 13, 2013
    Assignee: Moki Seisakusho Co., Ltd.
    Inventor: Kunitoyo Mogi
  • Publication number: 20130199425
    Abstract: Integrated polymeric-ceramic membrane-based oxy-fuel combustor. The combustor includes a polymer membrane structure for receiving air at an input and for delivering oxygen-enriched air at an outlet. An oxygen transport reactor including a ceramic ion transport membrane receives the oxygen-enriched air from the polymer membrane structure to generate oxygen for combustion with a fuel introduced into the oxygen transport reactor.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Applicants: King Fahd University of Petroleum and Minerals, Massachusetts Institute of Technology
    Inventors: Ahmed F. Ghoniem, Alexander Mitsos, Yang Shao-Horn, Mohamed A. Habib, Khaled Mezghani, Rached Ben-Mansour
  • Publication number: 20130196271
    Abstract: A material is utilized with an electropositive metal. This can be used as post-oxyfuel process for oxyfuel power stations. Here, an energy circuit is realized by the material utilization. An electropositive metal, in particular lithium, serves as energy store and as central reaction product for the conversion of nitrogen and carbon dioxide into ammonia and methanol. The power station thus operates without CO2 emissions.
    Type: Application
    Filed: September 16, 2011
    Publication date: August 1, 2013
    Inventor: Günter Schmid
  • Patent number: 8453583
    Abstract: A process for combusting solid liquid or gaseous fuels in a high temperature refractory-lined reactor with the aim of generating electric power comprises mixing at least one fuel with steam. The refactory material of the reactor and the opaque gases of the reaction environment bring about high power infrared radiation which substantially instantaneously preheats the reactants on input including said reactants being intrinsically transparent to infrared radiation (N2/O2) but rendered opaque and thus absorbers of energy from infrared radiation thanks to dilution with steam. A high efficiency combustor is provided for carrying out the above-stated process.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: June 4, 2013
    Assignee: ITEA S.p.A.
    Inventors: Massimo Malavasi, Edoardo Rossetti
  • Publication number: 20130133560
    Abstract: The present invention relates to a non-catalytic biomass burner that may be used to burn a variety of fuel types at high efficiencies. The burner may include a cylindrical combustion chamber with an auxiliary igniter to heat the fuel in the combustion chamber until desirable combustion temperatures are reached. Fuel may be added to the chamber via a fuel feed assembly, and the rate of fuel addition to the chamber by the fuel feed assembly may be controlled by a computer. A fan located on the distal side of a flue pipe from the chamber may also be provided that pulls air into the chamber through one or more air inlets that are designed to encourage cyclonic air and exhaust flow in the chamber. Methods are further provided for controlling the manner of operation of the burner by a computer that may be instructed by a computer program code.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 30, 2013
    Inventors: Scott Laskowski, Timothy Baughman, Johann Duerichen, Donald Laskowski
  • Publication number: 20130104520
    Abstract: A combustion device for hydrogen-rich gas is provided. Before entering a chamber, fuel and air are non-premixed for avoiding flushback. A vortex generator and a fuel sprayer are combined to mix fuel and air for enhancing burning effect. Vortex flame is generated with stabilizing aerodynamics of flow provided through vortex breakdown. A flameholder is formed downstream an injector to maintain stable combustion. Cooling air is introduced from a sheath to cool down a high-temperature gas, which leaves the combustion chamber and drives a turbine for turning a power generator. Thus, the present invention effectively mixes fuel and air, avoids flushback and prevents combustor damage.
    Type: Application
    Filed: April 23, 2012
    Publication date: May 2, 2013
    Applicant: ATOMIC ENERGY COUNCIL-INSTITUTE OF NUCLEAR ENERGY RESEARCH
    Inventors: Yau-Pin Chyou, Shenqyang (Steven) Shy, Chien-Chia Liu, Chih-Yang Wu
  • Patent number: 8413596
    Abstract: An oxyfuel boiler 1 is equipped with an oxygen separation apparatus 23 to produce oxygen by separating oxygen from the air, a recirculation fan 26 to supply a portion of combustion flue gas branched from the combustion flue gas discharged from the boiler to the oxyfuel boiler 1, a temperature sensor 14a to detect gas temperature at a boiler outlet 1d in the oxyfuel boiler 1, and a control apparatus 150 to calculate gas temperature at a furnace outlet 1c in the boiler from the gas temperature at the boiler outlet 1d detected by the temperature sensor 14a and control the operating condition of the recirculation fan 26 so that the calculated gas temperature at the furnace outlet 1c becomes a desired preset gas temperature.
    Type: Grant
    Filed: October 19, 2009
    Date of Patent: April 9, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiharu Hayashi, Akihiro Yamada, Tsuyoshi Shibata