ATE162103T1 - Regelung der nox-reduktion in abgasströmen - Google Patents

Regelung der nox-reduktion in abgasströmen

Info

Publication number
ATE162103T1
ATE162103T1 AT93113131T AT93113131T ATE162103T1 AT E162103 T1 ATE162103 T1 AT E162103T1 AT 93113131 T AT93113131 T AT 93113131T AT 93113131 T AT93113131 T AT 93113131T AT E162103 T1 ATE162103 T1 AT E162103T1
Authority
AT
Austria
Prior art keywords
flue gas
treatment zone
treatment
nox
control
Prior art date
Application number
AT93113131T
Other languages
English (en)
Inventor
Henry V Krigmont
Wayne R Kozacka
Felix E Spokoyny
Original Assignee
Wahlco Environmental Systems I
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 Wahlco Environmental Systems I filed Critical Wahlco Environmental Systems I
Application granted granted Critical
Publication of ATE162103T1 publication Critical patent/ATE162103T1/de

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • B01D53/8628Processes characterised by a specific catalyst
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/006Layout of treatment plant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/30Controlling by gas-analysis apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/346Controlling the process
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/54Nitrogen compounds
    • B01D53/56Nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8621Removing nitrogen compounds
    • B01D53/8625Nitrogen oxides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/20Reductants
    • B01D2251/206Ammonium compounds
    • B01D2251/2062Ammonia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00Intercepting solids
    • F23J2217/10Intercepting solids by filters
    • F23J2217/102Intercepting solids by filters electrostatic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00Treatment devices
    • F23J2219/10Catalytic reduction devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00Treatment devices
    • F23J2219/20Non-catalytic reduction devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
AT93113131T 1992-08-20 1993-08-17 Regelung der nox-reduktion in abgasströmen ATE162103T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/933,488 US5233934A (en) 1992-08-20 1992-08-20 Control of NOx reduction in flue gas flows

Publications (1)

Publication Number Publication Date
ATE162103T1 true ATE162103T1 (de) 1998-01-15

Family

ID=25464061

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93113131T ATE162103T1 (de) 1992-08-20 1993-08-17 Regelung der nox-reduktion in abgasströmen

Country Status (8)

Country Link
US (1) US5233934A (de)
EP (1) EP0583771B1 (de)
KR (1) KR970001439B1 (de)
AT (1) ATE162103T1 (de)
AU (1) AU655115B2 (de)
CA (1) CA2104320A1 (de)
DE (1) DE69316286D1 (de)
ES (1) ES2114983T3 (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4217552C1 (de) * 1992-05-27 1993-08-19 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
US5426934A (en) * 1993-02-10 1995-06-27 Hitachi America, Ltd. Engine and emission monitoring and control system utilizing gas sensors
US5472680A (en) * 1994-01-26 1995-12-05 E. I. Du Pont De Nemours And Company Production of NO from N2 O
US5465690A (en) * 1994-04-12 1995-11-14 A. Ahlstrom Corporation Method of purifying gases containing nitrogen oxides and an apparatus for purifying gases in a steam generation boiler
US5462718A (en) * 1994-06-13 1995-10-31 Foster Wheeler Energy Corporation System for decreasing NOx emissions from a fluidized bed reactor
US5589142A (en) * 1994-07-27 1996-12-31 Salem Englehard Integrated regenerative catalytic oxidation/selective catalytic reduction abatement system
US5510092A (en) * 1994-11-01 1996-04-23 Applied Utility Systems, Inc. Integrated catalytic/non-catalytic process for selective reduction of nitrogen oxides
US5853683A (en) * 1995-06-19 1998-12-29 Public Services Electric & Gas Corporation Hybrid SCR/SNCR process
DE19600869A1 (de) * 1996-01-12 1997-07-17 Metallgesellschaft Ag Verfahren zur Entstickung von Rauchgasen
US5738024A (en) * 1996-04-19 1998-04-14 Winegar; Phillip Catalytic reduction apparatus for NOX reduction
DE69610759T3 (de) * 1996-04-22 2004-07-29 Applied Utility Systems, Inc., Irvine Integriertes katalytisches/nichtkatalytisches Verfahren zur selektiven Reduktion von Stickstoffoxiden
US5985222A (en) 1996-11-01 1999-11-16 Noxtech, Inc. Apparatus and method for reducing NOx from exhaust gases produced by industrial processes
WO1998029692A1 (fr) * 1996-12-30 1998-07-09 Honda Giken Kogyo Kabushiki Kaisha Equipements de combustion pour installations produisant des fumees
HUP9801342A2 (hu) * 1997-06-20 1999-06-28 Von Roll Umwelttechnik Ag Eljárás füstgázok nitrogénmentesítésére
US6120580A (en) * 1998-04-15 2000-09-19 Hera, Llc Method for testing systems designed for NOx reduction in the combustion of carbonaceous fuels
US5943865A (en) * 1998-12-03 1999-08-31 Cohen; Mitchell B. Reheating flue gas for selective catalytic systems
US6197268B1 (en) 1999-07-02 2001-03-06 The Boc Group, Inc. Reduction of toxic substances in waste gas emissions
US6295809B1 (en) 1999-07-12 2001-10-02 Ford Global Technologies, Inc. Emission control system with a catalyst
US6305160B1 (en) 1999-07-12 2001-10-23 Ford Global Technologies, Inc. Emission control system
US6146605A (en) * 1999-07-26 2000-11-14 Hera, Llc Combined SCR/SNCR process
US6403046B1 (en) 1999-07-26 2002-06-11 Hera, Llc Pollution control systems using urea and ammonia for the control of emissions from the flue gas of fossil fuel burning facilities
US6231824B1 (en) 1999-08-10 2001-05-15 The Boc Group, Inc. Removal of nitric oxide from gas streams
US6264905B1 (en) * 1999-10-12 2001-07-24 Hera, Llc Method and apparatus for reducing “ammonia slip” in SCR and/or SNCR NOX removal applications
US6136284A (en) * 1999-12-09 2000-10-24 The Boc Group, Inc. Process for the removal of nitrogen oxides from gas streams
DE10001997A1 (de) * 2000-01-19 2001-07-26 Alstom Power Schweiz Ag Baden Verbund-Kraftwerk sowie Verfahren zum Betrieb eines solchen Verbund-Kraftwerkes
JP2001241603A (ja) * 2000-02-28 2001-09-07 Miura Co Ltd ボイラの脱硝装置
US6269633B1 (en) 2000-03-08 2001-08-07 Ford Global Technologies, Inc. Emission control system
JP2001343103A (ja) 2000-03-30 2001-12-14 Miura Co Ltd ボイラにおける脱硝装置の制御方法
JP2001276564A (ja) * 2000-03-30 2001-10-09 Miura Co Ltd ボイラの脱硝装置
DE60140104D1 (de) * 2000-06-13 2009-11-19 Ford Global Tech Inc Verfahren zur Optimierung der Zugabe eines Reduktionmittels zu einem SCR-Katalysator einer Brennkraftmaschine
US6506351B1 (en) 2000-08-11 2003-01-14 The Boc Group, Inc. Removal of nitrogen oxides from gas streams
US20020044886A1 (en) * 2000-10-16 2002-04-18 William Larco Vaporization system having blower positioned in reduced temperature zone
US6663839B2 (en) * 2001-02-26 2003-12-16 Abb Lummus Global Inc. Radial flow gas phase reactor and method for reducing the nitrogen oxide content of a gas
DE10126456B4 (de) * 2001-05-31 2004-05-19 Daimlerchrysler Ag Vorrichtung und Verfahren zur Entfernung von Stickoxiden aus dem Abgas mager betriebener Brennkraftmaschinen
KR100415380B1 (ko) * 2001-12-05 2004-01-16 주식회사 케이이씨 트랜지스터 및 그 제조 방법
US6761863B2 (en) 2002-01-29 2004-07-13 The Boc Group, Inc. Process for the removal of impurities from gas streams
WO2003087550A1 (en) * 2002-04-05 2003-10-23 E. I. Du Pont De Nemours And Company Method and apparatus for controlling a gas-emitting process and related devices
US20030202927A1 (en) * 2002-04-24 2003-10-30 Minkara Rafic Y. Reduction of ammonia in flue gas and fly ash
US7575931B2 (en) * 2002-06-19 2009-08-18 E.I. Du Pont De Nemours And Company Method and apparatus for reducing a nitrogen oxide, and control thereof
US20040126286A1 (en) * 2002-06-19 2004-07-01 Deruyter John C. Method and apparatus for reducing a nitrogen oxide
JP3735594B2 (ja) * 2002-06-28 2006-01-18 株式会社東芝 光ディスク装置と光ディスク装置の待機方法
US7199088B2 (en) 2002-07-01 2007-04-03 Shell Oil Company Lubricating oil for a diesel powered engine and method of operating a diesel powered engine
US6649132B1 (en) 2002-07-23 2003-11-18 The Boc Group, Inc. Process for the removal of impurities from gas streams
US6865881B2 (en) * 2002-11-18 2005-03-15 Diesel & Combustion Technologies, Llc System and method for reducing nitrogen oxides in combustion exhaust streams
US6941746B2 (en) * 2002-11-21 2005-09-13 Combustion Components Associates, Inc. Mobile diesel selective catalytic reduction systems and methods
US6862879B2 (en) 2002-11-21 2005-03-08 Ford Global Technologies, Llc Diesel aftertreatment system
US6895747B2 (en) 2002-11-21 2005-05-24 Ford Global Technologies, Llc Diesel aftertreatment systems
US6834498B2 (en) 2002-11-21 2004-12-28 Ford Global Technologies, Llc Diesel aftertreatment systems
US7056478B1 (en) * 2002-11-26 2006-06-06 Alstom Technology Ltd Emission treatment system
US7118721B2 (en) * 2002-11-26 2006-10-10 Alstom Technology Ltd Method for treating emissions
US7198769B2 (en) 2003-12-02 2007-04-03 Cichanowicz J Edward Multi-stage process for SCR of NOx
US7438876B2 (en) * 2003-12-02 2008-10-21 Cichanowicz J Edward Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury
US7784272B2 (en) * 2004-08-31 2010-08-31 Cummins Inc. Control system for an engine aftertreatment system
US7393511B2 (en) * 2005-02-16 2008-07-01 Basf Catalysts Llc Ammonia oxidation catalyst for the coal fired utilities
US20070059226A1 (en) * 2005-09-13 2007-03-15 John Fogarty Control system for a boiler
US8691170B2 (en) * 2007-05-31 2014-04-08 Siemens Energy, Inc. System and method for selective catalytic reduction of nitrogen oxides in combustion exhaust gases
US7727499B2 (en) 2007-09-28 2010-06-01 Basf Catalysts Llc Ammonia oxidation catalyst for power utilities
EP2051007A1 (de) * 2007-10-16 2009-04-22 Robert Dal Pra' Vorwärmer/umweltfreundliche Vorrichtung zur Verwendung bei Verbrennungsheizgeräten
WO2009049647A1 (en) * 2007-10-17 2009-04-23 Dal Pra Robert Post-combustion device, for filtering and reducing emission of particulate as well as optimizing thermal performance
US8596073B2 (en) * 2008-07-18 2013-12-03 General Electric Company Heat pipe for removing thermal energy from exhaust gas
US8157512B2 (en) * 2008-07-29 2012-04-17 General Electric Company Heat pipe intercooler for a turbomachine
US8359824B2 (en) * 2008-07-29 2013-01-29 General Electric Company Heat recovery steam generator for a combined cycle power plant
US8402755B2 (en) * 2008-07-30 2013-03-26 General Electric Company Gas turbine combustor exhaust gas spray cooling for NOx control using selective catalytic reductions
FR2934790B1 (fr) * 2008-08-08 2011-11-18 Lab Sa Procede et installation d'epuration de fumees de combustion contenant des oxydes d'azote
US20100095648A1 (en) * 2008-10-17 2010-04-22 General Electric Company Combined Cycle Power Plant
JP5232613B2 (ja) * 2008-12-08 2013-07-10 三菱重工業株式会社 排ガス浄化装置
DE102009022904A1 (de) 2009-05-27 2010-12-02 Polysius Ag Verfahren zur Entstickung von Rauchgasen der Zement- und Mineralindustrie mit einer SNCR-Anlage und einer SCR-Anlage
DE102009055942C5 (de) 2009-11-26 2015-12-17 Chemisch-Thermische Prozesstechnik Gmbh Verfahren und Vorrichtung zur Reinigung von Abgasen
US20120282564A1 (en) * 2011-05-03 2012-11-08 Electric Power Research Institute, Inc. METHODS FOR REDUCING NOx IN SCR FOSSIL-FUEL FIRED BOILERS
CN103349898B (zh) * 2013-07-04 2016-06-08 张蕊 一种sncr脱硝装置及脱硝方法
JP6290645B2 (ja) * 2014-02-07 2018-03-07 三菱日立パワーシステムズ株式会社 ガスタービンプラントの制御装置、ガスタービンプラント、及びガスタービンの脱硝制御方法
CZ306526B6 (cs) * 2015-10-02 2017-02-22 Česká zemědělská univerzita v Praze Zařízení pro sušení a spalování paliv s odstraňováním NOx látek ve spalinách
CN105214456A (zh) * 2015-10-30 2016-01-06 太仓东能环保设备有限公司 一种sncr-scr烟气脱硝工艺
TWI633924B (zh) * 2016-05-13 2018-09-01 青淨光能科技有限公司 一種氣體之處理方法與氣體處理裝置
DE102017101507B4 (de) * 2017-01-26 2022-10-13 Chemisch Thermische Prozesstechnik Gmbh Verfahren und Vorrichtung zur Abgasreinigung
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
KR102046121B1 (ko) * 2018-12-03 2019-11-18 주식회사 피티케이씨 복합형 질소산화물 저감시스템

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477277A (en) * 1977-12-02 1979-06-20 Mitsubishi Heavy Ind Ltd Method and apparatus for reducing nitrogen oxides in combustion exhaust gas
GB2132112B (en) * 1982-12-27 1986-08-20 Gen Electric Catalytic pollution control system for gas turbine exhaust
DE3505416A1 (de) * 1985-02-16 1986-08-21 Kraftanlagen Ag, 6900 Heidelberg Verfahren zur selektiven beseitigung von stickoxiden aus abgasen
DE3508553A1 (de) * 1985-03-11 1986-09-11 Hüls AG, 4370 Marl Verfahren und vorrichtung zum katalytischen umsetzen von gasen
JPS6219229A (ja) * 1985-07-16 1987-01-28 Babcock Hitachi Kk アンモニアの注入量制御装置
US5057293A (en) * 1987-02-13 1991-10-15 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
DE3805791A1 (de) * 1988-02-24 1989-08-31 Kraftanlagen Ag Verfahren und anlage zur entstickung der abgase von feuerungsanlagen
US5047220A (en) * 1989-03-27 1991-09-10 Foster Wheeler Energy Corporation Catalytic denitrification control process and system for combustion flue gases
US5047219A (en) * 1989-08-18 1991-09-10 Fuel Tech, Inc. Hybrid process for nitrogen oxides reduction
US4978514A (en) * 1989-09-12 1990-12-18 Fuel Tech, Inc. Combined catalytic/non-catalytic process for nitrogen oxides reduction
ES2074296T3 (es) * 1991-03-04 1995-09-01 Siemens Ag Precalentador regenerativo y procedimiento para su funcionamiento.

Also Published As

Publication number Publication date
ES2114983T3 (es) 1998-06-16
EP0583771B1 (de) 1998-01-14
DE69316286D1 (de) 1998-02-19
CA2104320A1 (en) 1994-02-21
AU4475793A (en) 1994-03-03
KR940003603A (ko) 1994-03-12
US5233934A (en) 1993-08-10
EP0583771A1 (de) 1994-02-23
AU655115B2 (en) 1994-12-01
KR970001439B1 (ko) 1997-02-06

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