CL2011002540A1 - Método para reducir los óxidos de nitrógeno generados en la quema de combustibles y aire del gas de combustión de una caldera, la cual comprende sobrecalentadores y un hogar para quemar combustibles, y donde se introduce un agente reductor de óxidos de nitrógeno en dichos gases de combustión, antes de la zona de sobrecalentamiento. - Google Patents

Método para reducir los óxidos de nitrógeno generados en la quema de combustibles y aire del gas de combustión de una caldera, la cual comprende sobrecalentadores y un hogar para quemar combustibles, y donde se introduce un agente reductor de óxidos de nitrógeno en dichos gases de combustión, antes de la zona de sobrecalentamiento.

Info

Publication number
CL2011002540A1
CL2011002540A1 CL2011002540A CL2011002540A CL2011002540A1 CL 2011002540 A1 CL2011002540 A1 CL 2011002540A1 CL 2011002540 A CL2011002540 A CL 2011002540A CL 2011002540 A CL2011002540 A CL 2011002540A CL 2011002540 A1 CL2011002540 A1 CL 2011002540A1
Authority
CL
Chile
Prior art keywords
combustion gases
nitrogen oxides
fuels
boiler
reducing agent
Prior art date
Application number
CL2011002540A
Other languages
English (en)
Inventor
Pasi Miikkulainen
Lauri Pakarinen
Original Assignee
Andritz 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40590200&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CL2011002540(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of CL2011002540A1 publication Critical patent/CL2011002540A1/es

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
    • F22B21/341—Vertical radiation boilers with combustion in the lower part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/40—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes arranged in a comparatively long vertical shaft, i.e. tower boilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/04—Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
    • F22B31/045—Steam generators specially adapted for burning refuse
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2067—Urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/10—Liquid waste
    • F23G2209/101—Waste liquor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F23J2215/101—Nitrous oxide (N2O)
    • 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
    • Y02E20/12—Heat utilisation in combustion or incineration of waste
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)

Abstract

LA PRESENTE INVENCIÓN ESTÁ RELACIONADA CON UN MÉTODO PARA REDUCIR UNA CANTIDAD DE ÓXIDOS DE NITRÓGENO GENERADOS EN LA QUEMA DE COMBUSTIBLES Y AIRE DE LOS GASES DE COMBUSTIÓN DE UNA CALDERA, TENIENDO DICHA CALDERA UN SISTEMA DE CIRCULACIÓN DE AGUA QUE COMPRENDE SOBRECALENTADORES, Y UN HOGAR PARA QUEMAR COMBUSTIBLE Y PARA GENERAR GASES DE COMBUSTIÓN QUE CONTIENEN ÓXIDOS DE NITRÓGENO, GASES DE COMBUSTIÓN QUE FLUYEN PRINCIPALMENTE HACIA ARRIBA EN EL HOGAR Y MÁS ALLÁ A UNA ZONA DEL SOBRECALENTADOR Y A TRAVÉS DE OTRAS SUPERFICIES DE RECUPERACIÓN TÉRMICA HACIA FUERA DE LA CALDERA, Y SE INTRODUCE UN AGENTE PARA REDUCIR ÓXIDOS DE NITRÓGENO EN DICHOS GASES DE COMBUSTIÓN, EN DONDE DICHO AGENTE REDUCTOR DE LOS ÓXIDOS DE NITRÓGENO ES INTRODUCIDO EN LOS GASES DE COMBUSTIÓN ANTES DE LA ZONA DEL SOBRECALENTADOR, Y ANTES QUE EL AGENTE PARA REDUCIR ÓXIDOS DE NITRÓGENO ES INTRODUCIDO, LA TEMPERATURA DE LOS GASES DE COMBUSTIÓN ES REDUCIDA POR MEDIO DE POR LO MENOS UN INTERCAMBIADOR DE CALOR QUE ESTÁ COLOCADO EN LA DIRECCIÓN DE ELEVACIÓN DE LA CALDERA DEBAJO DE LA NARIZ O EN EL ÁREA DE LA NARIZ EN EL FLUJO DE GASES DE COMBUSTIÓN AGUAS ARRIBA DE LA INTRODUCCIÓN DEL AGENTE REDUCTOR, PARA OBTENER UN RANGO DE Y ANDE TEMPERATURA ENTRE 850 OC A I000 OC EN EL FLUJO DE LOS GASES ,ÇICOMBUSTIÓN A FI DE REDUCIR LOS ÓXIDOS DE NITRÓGENO. ADEMÁS, SE DESCRIBE UNAALDERA GENERADORA-DE VAPOR.
CL2011002540A 2009-04-15 2011-10-13 Método para reducir los óxidos de nitrógeno generados en la quema de combustibles y aire del gas de combustión de una caldera, la cual comprende sobrecalentadores y un hogar para quemar combustibles, y donde se introduce un agente reductor de óxidos de nitrógeno en dichos gases de combustión, antes de la zona de sobrecalentamiento. CL2011002540A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20090141A FI129360B (fi) 2009-04-15 2009-04-15 Menetelmä savukaasupäästöjen vähentämiseksi ja kattila

Publications (1)

Publication Number Publication Date
CL2011002540A1 true CL2011002540A1 (es) 2012-05-18

Family

ID=40590200

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2011002540A CL2011002540A1 (es) 2009-04-15 2011-10-13 Método para reducir los óxidos de nitrógeno generados en la quema de combustibles y aire del gas de combustión de una caldera, la cual comprende sobrecalentadores y un hogar para quemar combustibles, y donde se introduce un agente reductor de óxidos de nitrógeno en dichos gases de combustión, antes de la zona de sobrecalentamiento.

Country Status (12)

Country Link
US (2) US9310075B2 (es)
EP (1) EP2419197B2 (es)
CN (1) CN102405091B (es)
BR (1) BRPI1011390B1 (es)
CA (1) CA2758878C (es)
CL (1) CL2011002540A1 (es)
ES (1) ES2561405T3 (es)
FI (2) FI129360B (es)
PL (1) PL2419197T3 (es)
PT (1) PT2419197E (es)
RU (1) RU2533131C2 (es)
WO (1) WO2010119177A2 (es)

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DE102015108014B3 (de) * 2015-05-20 2016-11-24 Chemisch Thermische Prozesstechnik Gmbh Verfahren und Anlage zur Reinigung von mit Stickoxiden beladenen Abgasen
FI128290B (en) * 2016-12-22 2020-02-28 Valmet Technologies Oy recovery boiler
US10844763B2 (en) 2017-03-10 2020-11-24 R. F. Macdonald Co. Process for direct urea injection with selective catalytic reduction (SCR) for NOx reduction in hot gas streams and related systems and assemblies

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Also Published As

Publication number Publication date
BRPI1011390B1 (pt) 2020-10-13
CA2758878C (en) 2017-07-04
BRPI1011390A2 (pt) 2016-03-15
US9310075B2 (en) 2016-04-12
WO2010119177A3 (en) 2010-12-02
FI20090141L (fi) 2010-10-16
US20120186541A1 (en) 2012-07-26
FI129360B (fi) 2021-12-31
US10443839B2 (en) 2019-10-15
RU2011146152A (ru) 2013-05-20
FI20090141A0 (fi) 2009-04-15
RU2533131C2 (ru) 2014-11-20
CN102405091A (zh) 2012-04-04
PL2419197T3 (pl) 2016-04-29
WO2010119177A2 (en) 2010-10-21
FI2419197T4 (fi) 2024-05-30
CN102405091B (zh) 2015-06-24
EP2419197A2 (en) 2012-02-22
EP2419197B1 (en) 2015-11-11
CA2758878A1 (en) 2010-10-21
ES2561405T3 (es) 2016-02-26
PT2419197E (pt) 2016-03-09
US20160245510A1 (en) 2016-08-25
EP2419197B2 (en) 2024-04-17

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