US20120024206A1 - Method for reducing nitrogen oxide emissions in oxyfuel combustion - Google Patents

Method for reducing nitrogen oxide emissions in oxyfuel combustion Download PDF

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Publication number
US20120024206A1
US20120024206A1 US13/254,660 US201013254660A US2012024206A1 US 20120024206 A1 US20120024206 A1 US 20120024206A1 US 201013254660 A US201013254660 A US 201013254660A US 2012024206 A1 US2012024206 A1 US 2012024206A1
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Prior art keywords
gas
furnace
oxygen
combustion
primary
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US13/254,660
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English (en)
Inventor
Mikko Varonen
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Valmet Power Oy
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Metso Power Oy
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Assigned to METSO POWER OY reassignment METSO POWER OY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VARONEN, MIKKO
Publication of US20120024206A1 publication Critical patent/US20120024206A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/10—Furnace staging
    • F23C2201/101—Furnace staging in vertical direction, e.g. alternating lean and rich zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07001—Injecting synthetic air, i.e. a combustion supporting mixture made of pure oxygen and an inert gas, e.g. nitrogen or recycled fumes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/32—Direct CO2 mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the invention relates to a method for reducing nitrogen oxide emissions in oxyfuel combustion, in which method at least one primary gas flow and at least one secondary gas flow are supplied in a furnace of a circulating fluidised bed boiler, which primary gas and secondary gas have been produced by mixing oxygen and circulated flue gas together.
  • Oxyfuel combustion enables relatively simple recovery of carbon dioxide. After water carried along with fuel and developed in combustion reactions has been removed from flue gas by condensing, remaining carbon dioxide can be liquefied by cooling and compressing. Oxyfuel combustion can be utilised in both pulverised fuel combustion and fluidised bed combustion.
  • combustion takes place in solids suspension that is fluidised and circulated by means of a gas flow blown from below.
  • the fluidised bed consists of particle-like fluidised material (e.g. sand), fuel, combustion gas, and flue gas and ash produced in combustion.
  • combustion gas refers to primary and secondary gases, which usually comprise air or some other oxygenous gas mixture.
  • the primary gas flow is supplied at the bottom of the furnace and the secondary gas flow is guided to the furnace via nozzles on its walls above the grate plane.
  • fluidised material is carried along with flue gas away from the fluidising space and, for providing a steady state, it is returned to the furnace via separating and circulating devices.
  • Circulating fluidised bed boiler utilises low combustion temperature (e.g. 700-900° C.) compared to pulverised fuel combustion, which together with staged air supply enables low nitrogen oxide emissions.
  • Nitrogen oxides (NO x ) refer to nitric oxide (NO) and nitrogen dioxide (NO 2 ), which are mostly produced from nitrogen contained by fuel in fluidised bed combustion. Staging of air supply provides reducing conditions in the lower section of the bed, whereby less nitrogen oxides are produced. The rest of air required for perfect combustion is supplied as secondary and possibly tertiary air.
  • Circulating fluidised bed technology also enables desulphurisation of flue gases already in the boiler by supplying limestone or dolomite directly to the furnace.
  • U.S. Pat. No. 4,704,084 and U.S. Pat. No. 4,962,711 disclose examples of circulating fluidised bed boilers according to prior art which aim at reducing NO x emissions by staged supply of combustion air. In both specifications, in the lower section of the furnace is formed a reducing zone by adjusting the supply of primary, secondary and possible tertiary air to the furnace.
  • combustion air is replaced by a mixture of oxygen and circulated flue gas. If the process is run with a standard oxygen concentration, as it is usual in air combustion, diminishing the quantity of primary gas to provide a reducing zone decreases the internal and external circulation of fluidised material, whereby heat transfer onto the furnace walls and into a possible external heat exchanger also weakens. Furthermore, the temperature of the fluidised bed may rise too high, which causes sintering of solid particles.
  • the object of the invention is to avoid the above problems and enhance the reduction of nitrogen oxides in an oxyfuel combusted circulating fluidised bed boiler.
  • the method according to the invention is characterised by what is presented in the characterising part of claim 1 .
  • the oxygen content of primary gas is adjusted such that at the bottom of the furnace is formed a reducing zone in which nitrogen oxides carried to the furnace along with circulated flue gas reduce to nitrogen when reacting with carbon monoxide and coke.
  • the oxygen content of secondary gas is adjusted such that above the reducing zone is formed an oxidising zone in which combustion can be completed.
  • Fluidisation speed can be kept constant or it can be adjusted independently, when the oxygen contents of primary and secondary gases are separately adjustable in a wide range.
  • the proportion of oxygen in the secondary gas can be equivalently increased in order to provide desired total oxygen content.
  • the oxygen content and volume flow of both gas flows are separately adjusted, it is easier than before to maintain a suitable temperature level in both the reducing and oxidising zones.
  • the invention provides an easy method based on running mode for the reduction of nitrogen oxides in a circulating fluidised bed boiler.
  • By varying the oxygen contents of the primary and secondary gas it is also possible to adjust the temperatures in the furnace, which is important for sulphur reduction, among others.
  • the FIGURE schematically shows circulating fluidised bed combustion with a mixture of oxygen and circulated flue gas.
  • a circulating fluidised bed boiler 10 shown in the FIGURE comprises a furnace 11 in which fuel is combusted in a circulating fluidised bed, a cyclone separator 12 in which fluidised material is separated from flue gas, and a return channel 13 via which fluidised material is circulated back to the furnace 11 .
  • Fuel 14 is supplied to the furnace 11 to which is also supplied oxygenous fluidisation and combustion gas as a primary gas flow 15 and as a secondary gas flow 16 . Combustion takes place in the fluidised bed, which is put to fluidise and circulate by means of the primary gas flow 15 supplied from below.
  • the fuel 14 can be e.g. solid fuel, such as coal.
  • the fluidised bed consists of solid inert bed material (usually sand), fuel supplied in it, fuel ash, possible limestone, combustion gas, and flue gas produced in combustion.
  • the gas flows 15 , 16 are arranged so great that a part of fluidised material exits along with flue gas from the upper section of the furnace to the cyclone separator 12 .
  • the cyclone separator 12 separates solid particles from flue gas, which are returned to the furnace 11 via the return channel 13 and an external heat exchanger (not shown in the FIGURE) possibly connected to it.
  • the flue gas is guided from the cyclone separator 12 to heat recovery 17 and from there further to fly ash separation 18 , which can be implemented e.g. with electrostatic or bag filters.
  • fly ash separation 18 the flue gas is guided to a condenser 19 , in which water and gases are separated from it by condensing.
  • the flue gas 20 of oxyfuel combustion mainly contains carbon dioxide, which can be cleansed and pressurised with methods known as such.
  • the primary gas flow 15 is supplied at the bottom of the furnace 11 via a wind box (not shown in the FIGURE) or equivalent.
  • One or more secondary gas flows 16 are supplied above the bottom via injection nozzles (not shown in the FIGURE) on the walls of the furnace 11 .
  • Both gas flows 15 , 16 contain oxygen and circulated flue gas, the main components of which are carbon dioxide and possibly water vapour.
  • flue gas contains small amounts of, inter alia, nitrogen oxides, sulphur dioxide, oxygen, and carbon monoxide.
  • the proportion of the primary gas flow 15 is usually at least 60% of the total amount of the combustion gases 15 , 16 supplied to the furnace 11 .
  • the primary gas flow 15 is produced by means of first mixing means 21 by mixing oxygen 24 and circulated flue gas 25 together in a desired ratio.
  • the secondary gas flow 16 is produced by means of second mixing means 22 by mixing oxygen 24 and circulated flue gas 25 together in a desired ratio.
  • the oxygen 24 can be produced e.g. by removing nitrogen from air by means of an oxygen plant 23 or by some other equivalent means.
  • the circulated flue gas 25 can be taken from the furnace flue either before the condenser 19 or after the condenser 19 depending on the wish of using wet or dry flue gas.
  • the first mixing means 21 for producing the primary gas flow 15 and the second mixing means 22 for producing the secondary gas flow can be in connection with the injection nozzles supplying gas to the furnace 11 or they can be separate from the furnace 11 , whereby the gas nozzles are supplied with a ready-mixed gas mixture.
  • the mixing means 21 , 22 can consist of means known as such (valves, measuring sensors, adjusters etc.) for adjusting the oxygen content of the gas flow supplied to the furnace.
  • the oxygen content of the primary gas flow 15 is adjusted such that a reducing zone I is formed at the bottom of the furnace 11 , in which zone there is oxygen less than required for the perfect combustion of fuel.
  • the speed of the primary gas flow is again adjusted such that a suitable level of internal and external circulation of fluidised material can be provided.
  • the oxygen content of the secondary gas flow 16 is adjusted such that above the reducing zone I is formed an oxidising zone II in which there is oxygen more than required for the perfect combustion of fuel. In the oxidising zone II, the combustion of fuel is completed.
  • each secondary gas flow 16 can be provided with its own mixing means 22 for adjusting the oxygen content of the secondary gas flows.
  • flue gas exiting from the circulating fluidised bed boiler to the carbon dioxide recovery only contains a very small amount of nitrogen oxides.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
US13/254,660 2009-03-06 2010-02-08 Method for reducing nitrogen oxide emissions in oxyfuel combustion Abandoned US20120024206A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20095220A FI123853B (fi) 2009-03-06 2009-03-06 Menetelmä typenoksidipäästöjen vähentämiseksi happipoltossa
FI20095220 2009-03-06
PCT/FI2010/050075 WO2010100324A1 (en) 2009-03-06 2010-02-08 Method for reducing nitrogen oxide emissions in oxyfuel combustion

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US (1) US20120024206A1 (ru)
EP (1) EP2404111B1 (ru)
CN (1) CN102341650B (ru)
BR (1) BRPI1009998A2 (ru)
CA (1) CA2753334A1 (ru)
DK (1) DK2404111T3 (ru)
ES (1) ES2729674T3 (ru)
FI (1) FI123853B (ru)
PL (1) PL2404111T3 (ru)
RU (1) RU2511819C2 (ru)
WO (1) WO2010100324A1 (ru)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120148961A1 (en) * 2009-08-17 2012-06-14 Metso Power Oy Method and arrangement for optimising combustion conditions in a fluidised-bed boiler
US20120244479A1 (en) * 2011-03-22 2012-09-27 General Electric Company Combustion System Using Recycled Flue Gas to Boost Overfire Air
US20130260324A1 (en) * 2012-03-29 2013-10-03 Luoyang Petrochemical Engineering Corporation/Sinopec Fired heater and method of using the same
CN104861991A (zh) * 2015-04-23 2015-08-26 武汉钢铁(集团)公司 一种焦炉烟气循环系统及处理方法
EP3064830A4 (en) * 2013-09-06 2017-08-16 Institute Of Engineering Thermophysics, Chinese Academy Of Sciences Method for distributing air for oxygen-enriched combustion on circulating fluidized bed
WO2024112660A1 (en) * 2022-11-22 2024-05-30 Honeywell International Inc. Low nox burner with targeted gas injection

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CN103697466A (zh) * 2013-12-20 2014-04-02 哈尔滨锅炉厂有限责任公司 带烟气再循环旁路的循环流化床锅炉及nox排放方法
CZ307680B6 (cs) * 2015-10-26 2019-02-13 ÄŚeskĂ© vysokĂ© uÄŤenĂ­ technickĂ© v Praze Systém pro zajištění fluidačního a oxidačního média v režimu oxyfuel pro fluidní kotel
CN105650628B (zh) * 2016-02-06 2019-04-30 中国科学院工程热物理研究所 循环流化床富氧燃烧装置及其富氧燃烧供风方法
CN105716091B (zh) * 2016-02-17 2018-04-10 无锡国联环保科技股份有限公司 烟气循环污泥喷动流化床焚烧系统及方法
CN105588120B (zh) * 2016-03-02 2018-05-11 内蒙古金土环保科技有限公司 一种脱硫泛氧燃烧系统
CN105864755B (zh) * 2016-03-30 2018-09-04 中国科学院工程热物理研究所 循环流化床富氧燃烧装置及其燃烧方法
CN111664445A (zh) * 2020-07-10 2020-09-15 青岛特利尔环保集团股份有限公司 一种基于料热平衡的兰炭末循环流化床锅炉
FI20225751A1 (fi) * 2022-08-25 2024-02-26 Aliceco Energy Ab Oy Järjestelmä ja menetelmä polttolaitoksen päivittämiseksi happipolttoa varten

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215508A (en) * 1962-03-15 1965-11-02 Pittsburgh Plate Glass Co Gas distributor
US4102989A (en) * 1974-05-15 1978-07-25 Iowa State University Research Foundation, Inc. Simultaneous reductive and oxidative decomposition of calcium sulfate in the same fluidized bed
US4111158A (en) * 1976-05-31 1978-09-05 Metallgesellschaft Aktiengesellschaft Method of and apparatus for carrying out an exothermic process
US4704084A (en) * 1979-12-26 1987-11-03 Battelle Development Corporation NOX reduction in multisolid fluidized bed combustors
US4962711A (en) * 1988-01-12 1990-10-16 Mitsubishi Jukogyo Kabushiki Kaisha Method of burning solid fuel by means of a fluidized bed
US5660125A (en) * 1995-05-05 1997-08-26 Combustion Engineering, Inc. Circulating fluid bed steam generator NOx control
US5826521A (en) * 1993-04-22 1998-10-27 Sbw Sonderabfallentsorgung Badenwurttemberg Gmbh Method for reducing the emissions produced by incinerating waste
US6230664B1 (en) * 1997-02-07 2001-05-15 Kvaerner Pulping Oy Method and arrangement for supplying air to a fluidized bed boiler
US6415743B2 (en) * 1999-11-22 2002-07-09 Abb Alstom Power Combustion Method of decreasing nitrogen oxide emissions in a circulating fluidized bed combustion system
US6505567B1 (en) * 2001-11-26 2003-01-14 Alstom (Switzerland) Ltd Oxygen fired circulating fluidized bed steam generator
US20060150510A1 (en) * 2001-12-21 2006-07-13 Foster Wheeler Energia Oy Method and apparatus for gasifying carbonaceous material
US20070175411A1 (en) * 2004-02-25 2007-08-02 Jean-Xavier Morin Oxygen-producing oxycombustion boiler
US20070295249A1 (en) * 2006-06-21 2007-12-27 Metso Power Oy Method for reducing nitrogen oxide emissions of a recovery boiler, and a recovery boiler
US20080000403A1 (en) * 2004-05-28 2008-01-03 Alstom Technology Ltd Fluidized-Bed Device With Oxygen-Enriched Oxidizer
US20080149012A1 (en) * 2005-02-11 2008-06-26 Metso Power Oy Method For Reducing Nitrogen Oxide Emissions of a Bubbling Fluidized Bed Boiler and an Air Distribution System of a Bubbling Fluidized Bed Boiler
US20090007827A1 (en) * 2007-06-05 2009-01-08 Hamid Sarv System and Method for Minimizing Nitrogen Oxide (NOx) Emissions in Cyclone Combustors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1523500A (en) * 1975-10-21 1978-09-06 Battelle Development Corp Method of operating a fluidized bed system
JPS5860107A (ja) * 1981-10-03 1983-04-09 Osaka Gas Co Ltd 流動層式熱処理炉
US5325796A (en) * 1992-05-22 1994-07-05 Foster Wheeler Energy Corporation Process for decreasing N2 O emissions from a fluidized bed reactor
DE19703197A1 (de) * 1997-01-30 1998-08-06 Umsicht Inst Fuer Umwelt Siche Verfahren und Vorrichtung zur Verbrennung von Holz und/oder Biomassen
US6430914B1 (en) * 2000-06-29 2002-08-13 Foster Wheeler Energy Corporation Combined cycle power generation plant and method of operating such a plant
CN100441946C (zh) * 2006-11-09 2008-12-10 华中科技大学 富氧燃烧循环流化床锅炉系统

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215508A (en) * 1962-03-15 1965-11-02 Pittsburgh Plate Glass Co Gas distributor
US4102989A (en) * 1974-05-15 1978-07-25 Iowa State University Research Foundation, Inc. Simultaneous reductive and oxidative decomposition of calcium sulfate in the same fluidized bed
US4111158A (en) * 1976-05-31 1978-09-05 Metallgesellschaft Aktiengesellschaft Method of and apparatus for carrying out an exothermic process
US4704084A (en) * 1979-12-26 1987-11-03 Battelle Development Corporation NOX reduction in multisolid fluidized bed combustors
US4962711A (en) * 1988-01-12 1990-10-16 Mitsubishi Jukogyo Kabushiki Kaisha Method of burning solid fuel by means of a fluidized bed
US5826521A (en) * 1993-04-22 1998-10-27 Sbw Sonderabfallentsorgung Badenwurttemberg Gmbh Method for reducing the emissions produced by incinerating waste
US5660125A (en) * 1995-05-05 1997-08-26 Combustion Engineering, Inc. Circulating fluid bed steam generator NOx control
US6230664B1 (en) * 1997-02-07 2001-05-15 Kvaerner Pulping Oy Method and arrangement for supplying air to a fluidized bed boiler
US6415743B2 (en) * 1999-11-22 2002-07-09 Abb Alstom Power Combustion Method of decreasing nitrogen oxide emissions in a circulating fluidized bed combustion system
US6505567B1 (en) * 2001-11-26 2003-01-14 Alstom (Switzerland) Ltd Oxygen fired circulating fluidized bed steam generator
US20060150510A1 (en) * 2001-12-21 2006-07-13 Foster Wheeler Energia Oy Method and apparatus for gasifying carbonaceous material
US20070175411A1 (en) * 2004-02-25 2007-08-02 Jean-Xavier Morin Oxygen-producing oxycombustion boiler
US20080000403A1 (en) * 2004-05-28 2008-01-03 Alstom Technology Ltd Fluidized-Bed Device With Oxygen-Enriched Oxidizer
US20080149012A1 (en) * 2005-02-11 2008-06-26 Metso Power Oy Method For Reducing Nitrogen Oxide Emissions of a Bubbling Fluidized Bed Boiler and an Air Distribution System of a Bubbling Fluidized Bed Boiler
US20070295249A1 (en) * 2006-06-21 2007-12-27 Metso Power Oy Method for reducing nitrogen oxide emissions of a recovery boiler, and a recovery boiler
US20090007827A1 (en) * 2007-06-05 2009-01-08 Hamid Sarv System and Method for Minimizing Nitrogen Oxide (NOx) Emissions in Cyclone Combustors

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120148961A1 (en) * 2009-08-17 2012-06-14 Metso Power Oy Method and arrangement for optimising combustion conditions in a fluidised-bed boiler
US9052106B2 (en) * 2009-08-17 2015-06-09 Valmet Technologies Oy Method and arrangement for optimising combustion conditions in a fluidised-bed boiler
US20120244479A1 (en) * 2011-03-22 2012-09-27 General Electric Company Combustion System Using Recycled Flue Gas to Boost Overfire Air
US20130260324A1 (en) * 2012-03-29 2013-10-03 Luoyang Petrochemical Engineering Corporation/Sinopec Fired heater and method of using the same
US9683741B2 (en) * 2012-03-29 2017-06-20 China Petroleum & Chemical Corporation Fired heater and method of using the same
EP3064830A4 (en) * 2013-09-06 2017-08-16 Institute Of Engineering Thermophysics, Chinese Academy Of Sciences Method for distributing air for oxygen-enriched combustion on circulating fluidized bed
AU2014317540B2 (en) * 2013-09-06 2017-12-14 Institute Of Engineering Thermophysics, Chinese Academy Of Sciences Method for distributing air for oxygen-enriched combustion on circulating fluidized bed
US10174937B2 (en) 2013-09-06 2019-01-08 Institute Of Engineering Thermophysics, Chinese Academy Of Sciences Method for distributing gas for oxy-fuel combustion in circulating fluidized bed
CN104861991A (zh) * 2015-04-23 2015-08-26 武汉钢铁(集团)公司 一种焦炉烟气循环系统及处理方法
WO2024112660A1 (en) * 2022-11-22 2024-05-30 Honeywell International Inc. Low nox burner with targeted gas injection

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CA2753334A1 (en) 2010-09-10
FI123853B (fi) 2013-11-15
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BRPI1009998A2 (pt) 2019-02-26
FI20095220A0 (fi) 2009-03-06
EP2404111A4 (en) 2014-11-26
FI20095220A (fi) 2010-09-07
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RU2011135189A (ru) 2013-04-20
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