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FI20055063A7 - Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler - Google Patents

Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler Download PDF

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Publication number
FI20055063A7
FI20055063A7 FI20055063A FI20055063A FI20055063A7 FI 20055063 A7 FI20055063 A7 FI 20055063A7 FI 20055063 A FI20055063 A FI 20055063A FI 20055063 A FI20055063 A FI 20055063A FI 20055063 A7 FI20055063 A7 FI 20055063A7
Authority
FI
Finland
Prior art keywords
fluidized bed
bed boiler
fuel
air
distribution system
Prior art date
Application number
FI20055063A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20055063L (en
FI20055063A0 (en
Inventor
Pauli Dernjatin
Marko Fabritius
Jukka Röppänen
Original Assignee
Metso Power Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Power Oy filed Critical Metso Power Oy
Priority to FI20055063A priority Critical patent/FI20055063A7/en
Publication of FI20055063A0 publication Critical patent/FI20055063A0/en
Priority to CA2597159A priority patent/CA2597159C/en
Priority to US11/883,887 priority patent/US20080149012A1/en
Priority to EP06708960.7A priority patent/EP1846694B1/en
Priority to PCT/FI2006/050056 priority patent/WO2006084954A1/en
Publication of FI20055063L publication Critical patent/FI20055063L/en
Publication of FI20055063A7 publication Critical patent/FI20055063A7/en

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

Menetelmä biopolttoainetta polttavan kerrosleijukattilan typenoksidipäästöjen vähentämiseksi ja biopolttoainetta polttavan kerrosleijukattilan ilmanjakojärjestelmä. Kerrosleijukattilan tulipesän (1) alaosaan on järjestetty leijukerros (2), jota leijutetaan leijutuskaasun, joka sisältää ainakin primääri-ilmaa, avulla. Leijukerrokseen (2) syötetään polttoainetta, joka kuivuu ja pyrolysoituu polttoaineen haihtuvia aineita sisältäväksi pyrolyysikaasuksi, joka nousee ylöspäin tulipesässä ja palaa siellä. Leijukerroksen (2) yläpuolelle syötetään sekundääri-ilmaa sekundääri-ilmasuuttimista (6) ja sekundääri-ilmasuuttimien (6) yläpuolelle syötetään tertiääri-ilmaa. Osa primääri-ilmasta syötetään polttoaineen syötön yhteydessä niin, että polttoaine pakotetaan olennaisesti leijukerroksen (2) pinnalle, jolloin se pyrolysoituu olennaisesti kokonaan ja että ainakin osa pyrolyysissä muodostuneista pyrolyysikaasuista poltetaan primääri-ilman avulla niin, että ilmakerroin pyrolyysikaasussa olevien polttoaineen haihtuvien aineiden suhteen on alistökiömetrisellä alueella.&sr;Fig. 2A method for reducing nitrogen oxide emissions from a biofuel-burning fluidized bed boiler and an air distribution system for a biofuel-burning fluidized bed boiler. A fluidized bed (2) is arranged in the lower part of the furnace (1) of the fluidized bed boiler, which is fluidized by means of a fluidizing gas containing at least primary air. Fuel is fed to the fluidized bed (2), which dries and pyrolyzes into a pyrolysis gas containing volatile substances of the fuel, which rises upwards in the furnace and burns there. Secondary air is fed above the fluidized bed (2) from secondary air nozzles (6) and tertiary air is fed above the secondary air nozzles (6). Part of the primary air is supplied in connection with the fuel supply so that the fuel is essentially forced onto the surface of the fluidized bed (2), whereby it is essentially completely pyrolyzed and at least part of the pyrolysis gases formed in the pyrolysis are burned by means of the primary air so that the air ratio in relation to the volatile substances of the fuel in the pyrolysis gas is in the substoichiometric range.&sr;Fig. 2

FI20055063A 2005-02-11 2005-02-11 Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler FI20055063A7 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI20055063A FI20055063A7 (en) 2005-02-11 2005-02-11 Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler
CA2597159A CA2597159C (en) 2005-02-11 2006-02-09 A method for reducing nitrogen oxide emissions of a bubbling fluidized bed boiler and an air distribution system of a bubbling fluidized bed boiler
US11/883,887 US20080149012A1 (en) 2005-02-11 2006-02-09 Method For Reducing Nitrogen Oxide Emissions of a Bubbling Fluidized Bed Boiler and an Air Distribution System of a Bubbling Fluidized Bed Boiler
EP06708960.7A EP1846694B1 (en) 2005-02-11 2006-02-09 A method for reducing nitrogen oxide emissions of a bubbling fluidized bed boiler
PCT/FI2006/050056 WO2006084954A1 (en) 2005-02-11 2006-02-09 A method for reducing nitrogen oxide emissions of a bubbling fluidized bed boiler and an air distribution system of a bubbling fluidized bed boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20055063A FI20055063A7 (en) 2005-02-11 2005-02-11 Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler

Publications (3)

Publication Number Publication Date
FI20055063A0 FI20055063A0 (en) 2005-02-11
FI20055063L FI20055063L (en) 2006-08-12
FI20055063A7 true FI20055063A7 (en) 2006-08-12

Family

ID=34224273

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20055063A FI20055063A7 (en) 2005-02-11 2005-02-11 Method for reducing nitrogen oxide emissions from a fluidized bed boiler and air distribution system for a fluidized bed boiler

Country Status (5)

Country Link
US (1) US20080149012A1 (en)
EP (1) EP1846694B1 (en)
CA (1) CA2597159C (en)
FI (1) FI20055063A7 (en)
WO (1) WO2006084954A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080149010A1 (en) 2006-12-22 2008-06-26 Covanta Energy Corporation Tertiary air addition to solid waste-fired furnaces for nox control
CA2615344A1 (en) 2006-12-22 2008-06-22 Covanta Energy Corporation Tertiary air addition to solid waste-fired furnaces for nox control
JP4413275B2 (en) * 2007-11-07 2010-02-10 メタウォーター株式会社 Fluid incinerator and fluid incineration method of sludge using the same
FI123853B (en) * 2009-03-06 2013-11-15 Metso Power Oy Procedure for reducing nitric oxide emissions during oxygen combustion
FI125814B (en) * 2009-06-02 2016-02-29 Valmet Technologies Oy Method for performing pyrolysis and pyrolysis apparatus
FI125314B (en) 2011-09-30 2015-08-31 Fortum Oyj Process for reducing nitric oxide emissions and corrosion in a BFB boiler and a BFB boiler
CN102330973A (en) * 2011-10-13 2012-01-25 邹城市圣瑞达能源有限公司 Blending gas-solid mixed fuel technology of CFB (circulating fluid bed) boiler
FI126253B (en) * 2015-02-09 2016-08-31 Fortum Oyj Method for reducing nitrogen oxide emissions in a bubbling fluidised bed boiler and a bubbling fluidised bed boiler
FI126254B (en) 2015-02-09 2016-08-31 Fortum Oyj Method for supplying air to a fluidized bed boiler, fluidized bed boiler and fuel supply means for a fluidized bed boiler
US11047568B2 (en) * 2015-06-15 2021-06-29 Improbed Ab Method for operating a fluidized bed boiler
CN113522743B (en) * 2021-07-30 2022-05-17 中国矿业大学 Method and system for weakening bubbles in gas-solid separation fluidized bed

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863577A (en) * 1971-11-22 1975-02-04 Dorr Oliver Inc Fluidized bed reactor
US4060041A (en) * 1975-06-30 1977-11-29 Energy Products Of Idaho Low pollution incineration of solid waste
DE3907165A1 (en) * 1989-03-06 1990-09-13 Pauli Balduin METHOD AND DEVICE FOR BLOWING AND BURNING FUELS WITH A LOW PROBLEM OF RESIDUES
US5401130A (en) * 1993-12-23 1995-03-28 Combustion Engineering, Inc. Internal circulation fluidized bed (ICFB) combustion system and method of operation thereof
GB2286345A (en) * 1994-02-09 1995-08-16 Mark Frederick Wickham Feeding a fluidised bed
US5660125A (en) * 1995-05-05 1997-08-26 Combustion Engineering, Inc. Circulating fluid bed steam generator NOx control
JP3037134B2 (en) * 1996-04-26 2000-04-24 日立造船株式会社 Fluid bed incinerator
ATE228225T1 (en) * 1996-12-30 2002-12-15 Alstom Power Inc METHOD FOR CONTROLLING NITROGEN OXIDES IN A CIRCULATING FLUIDIZED STEAM GENERATOR
FI102411B1 (en) * 1997-02-07 1998-11-30 Kvaerner Pulping Oy Method and apparatus for feeding air into a floating bed reactor
EP1078203A1 (en) * 1998-05-11 2001-02-28 ALSTOM POWER (Schweiz) AG Method for the heat treatment of solids
US7004089B2 (en) * 2001-05-11 2006-02-28 Kvaerner Power Oy Combined fluidized bed and pulverized coal combustion method

Also Published As

Publication number Publication date
FI20055063L (en) 2006-08-12
CA2597159C (en) 2013-10-22
US20080149012A1 (en) 2008-06-26
EP1846694A4 (en) 2012-01-04
FI20055063A0 (en) 2005-02-11
WO2006084954A1 (en) 2006-08-17
CA2597159A1 (en) 2006-08-17
EP1846694B1 (en) 2017-05-10
EP1846694A1 (en) 2007-10-24

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Owner name: METSO POWER OY

Free format text: METSO POWER OY

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