Movatterモバイル変換

[0]ホーム
URL:

AU2002228791A1 - Selective catalytic reduction of no, enabled by side stream urea decomposition - Google Patents

Selective catalytic reduction of no, enabled by side stream urea decomposition

Info

Publication number
AU2002228791A1
AU2002228791A1AU2002228791AAU2879102AAU2002228791A1AU 2002228791 A1AU2002228791 A1AU 2002228791A1AU 2002228791 AAU2002228791 AAU 2002228791AAU 2879102 AAU2879102 AAU 2879102AAU 2002228791 A1AU2002228791 A1AU 2002228791A1
Authority
AU
Australia
Prior art keywords
urea
flue gas
side stream
scr
stream
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2002228791A
Inventor
John M. Boyle
Paul G. Carmignani
William E. Cummings Jr.
Piers De Havilland
William H Sun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuel Tech Inc
Original Assignee
Fuel Tech Inc
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 filedlitigationCriticalhttps://patents.darts-ip.com/?family=22948481&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2002228791(A1)"Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fuel Tech IncfiledCriticalFuel Tech Inc
Publication of AU2002228791A1publicationCriticalpatent/AU2002228791A1/en
Abandonedlegal-statusCriticalCurrent

Links

Classifications

Landscapes

Abstract

A preferred process arrangement utilizes the enthalpy of the flue gas, which can be supplemented if need be, to convert urea ( 30 ) into ammonia for SCR. Urea ( 30 ), which decomposes at temperatures above 140 ° C., is injected ( 32 ) into a flue gas stream split off ( 28 ) after a heat exchanger ( 22 ), such as a primary superheater or an economizer. Ideally, the side stream would gasify the urea without need for further heating; but, when heat is required it is far less than would be needed to heat either the entire effluent ( 23 ) or the urea ( 30 ). This side stream, typically less than 3% of the flue gas, provides the required temperature and residence time for complete decomposition of urea ( 30 ). A cyclonic separator can be used to remove particulates and completely mix the reagent and flue gas. This stream can then be directed to an injection grid ( 37 ) ahead of SCR using a blower ( 36 ). The mixing with the flue gas is facilitated due to an order of magnitude higher mass of side stream compared to that injected through the AIG in a traditional ammonia-SCR process.
AU2002228791A2000-12-012001-12-03Selective catalytic reduction of no, enabled by side stream urea decompositionAbandonedAU2002228791A1 (en)

Applications Claiming Priority (3)

Application NumberPriority DateFiling DateTitle
US25061800P2000-12-012000-12-01
US602506182000-12-01
PCT/US2001/046415WO2002043837A1 (en)2000-12-012001-12-03Selective catalytic reduction of no, enabled by side stream urea decomposition

Publications (1)

Publication NumberPublication Date
AU2002228791A1true AU2002228791A1 (en)2002-06-11

Family

ID=22948481

Family Applications (1)

Application NumberTitlePriority DateFiling Date
AU2002228791AAbandonedAU2002228791A1 (en)2000-12-012001-12-03Selective catalytic reduction of no, enabled by side stream urea decomposition

Country Status (15)

CountryLink
US (1)US7090810B2 (en)
EP (1)EP1339479B1 (en)
JP (1)JP2004514828A (en)
KR (1)KR20020081294A (en)
CN (2)CN101066520B (en)
AT (1)ATE355883T1 (en)
AU (1)AU2002228791A1 (en)
CA (1)CA2397923C (en)
CZ (1)CZ305419B6 (en)
DE (1)DE60127164T2 (en)
ES (1)ES2278806T3 (en)
MX (1)MXPA02007703A (en)
PT (1)PT1339479E (en)
TW (1)TWI228054B (en)
WO (1)WO2002043837A1 (en)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US7615200B2 (en)*2000-12-012009-11-10Fuel Tech, Inc.Selective catalytic reduction of NOx enabled by urea decomposition in heat-exchanger bypass
US7829033B2 (en)*2003-07-032010-11-09Fuel Tech, Inc.Selective catalytic reduction of NOx enabled by sidestream urea decomposition
DE10247989A1 (en)†2002-10-152004-04-29Robert Bosch Gmbh Exhaust gas cleaning of an internal combustion engine and method for cleaning its exhaust gases
JP4262522B2 (en)*2003-05-282009-05-13株式会社日立ハイテクノロジーズ Exhaust gas treatment device for engine and exhaust gas treatment method
JP2005105970A (en)*2003-09-302005-04-21Nissan Diesel Motor Co LtdExhaust emission control device of engine
US7273595B2 (en)*2004-12-302007-09-25Spokoyny Felix EMethod and apparatus for the production of gaseous ammonia from a urea solution
DE102005002319A1 (en)*2005-01-172006-07-27Robert Bosch Gmbh Apparatus for aftertreatment of exhaust gases
DE102005002317A1 (en)*2005-01-172006-07-27Robert Bosch Gmbh Apparatus for aftertreatment of exhaust gases
NL1028497C2 (en)*2005-03-092006-09-12Dsm Ip Assets Bv Process for the preparation of a urea-containing aqueous stream.
JP2007145796A (en)*2005-03-172007-06-14Mitsui Chemicals IncUrea water and denitrification apparatus using the same
US7776280B2 (en)2005-05-102010-08-17Emcon Technologies LlcMethod and apparatus for selective catalytic reduction of NOx
ATE479489T1 (en)*2005-06-172010-09-15Bd Heat Recovery Inc DEVICE FOR THE CATALYTIC PURIFICATION OF EXHAUST GASES
US7361321B2 (en)2005-07-112008-04-22General Electric CompanyExhaust stream treatment
CN103527289A (en)*2006-06-132014-01-22沃尔沃拉斯特瓦格纳公司Selective catalytic reduction system and method for reducing nitrogen oxide emission of engine
US8899020B2 (en)*2006-08-212014-12-02Southwest Research InstituteApparatus and method for assisting selective catalytic reduction
WO2008024367A2 (en)*2006-08-222008-02-28Babcock Power, Inc.Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
CN101568372B (en)*2006-12-232012-02-29澳泽化学特罗斯特贝格有限公司 Use of guanidine formate aqueous solution for selective catalytic reduction of nitrogen oxides in vehicle exhaust gas
US7622091B2 (en)*2007-01-242009-11-24General Electric CompanyMethods and systems for reducing NOx emissions in industrial combustion systems
JP2008196479A (en)2007-02-092008-08-28Sulzer Chemtech AgExhaust gas cleaning system
US8047145B2 (en)*2007-02-202011-11-01Hitachi Power Systems America, LtdAmmonia vaporization system using non-flue gas intermediate heat transfer medium
US7985280B2 (en)*2007-02-202011-07-26Hitachi Power Systems America, Ltd.Separation of aqueous ammonia components for NOx reduction
US20100077767A1 (en)*2007-04-102010-04-01Maria BalmasEmission free integrated gasification combined cycle
US20080267837A1 (en)2007-04-272008-10-30Phelps Calvin EConversion of urea to reactants for NOx reduction
DE102007024782B4 (en)*2007-05-262011-08-25Eichenauer Heizelemente GmbH & Co. KG, 76870 Heating insert and its use in a urea supply system
FR2918294B1 (en)2007-07-022009-10-09Lab Sa Sa PROCESS FOR PURIFYING COMBUSTION FUMEES CONTAINING NITROGEN OXIDES
CN101219329B (en)*2007-09-272010-06-16中电投远达环保工程有限公司 Pre-cyclone pre-dust removal SCR flue gas denitrification process
US8591848B2 (en)*2007-11-092013-11-26Fuel Tech, Inc.Selective catalytic NOx reduction process and control system
US7736608B2 (en)*2007-11-292010-06-15General Electric CompanyMethods and systems for reducing the emissions from combustion gases
FR2924623A1 (en)*2007-12-052009-06-12Air Liquide METHOD FOR SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES IN COMBUSTION FUME AND INSTALLATION FOR ITS IMPLEMENTATION
US20090148370A1 (en)*2007-12-062009-06-11Spencer Iii Herbert WProcess to produce ammonia from urea
JP4951560B2 (en)*2008-03-192012-06-13東京濾器株式会社 Exhaust gas purification device for internal combustion engine
US8141353B2 (en)*2008-04-252012-03-27Tenneco Automotive Operating Company Inc.Exhaust gas additive/treatment system and mixer for use therein
BRPI0913209A2 (en)*2008-05-272019-09-24Fuel Tech Inc selective catalytic reduction process and apparatus for proposing improved urea gasification to form ammonia-containing gas
DE102008033984B4 (en)2008-07-212016-03-24Friedrich Boysen Gmbh & Co. Kg exhaust system
JP5426863B2 (en)*2008-10-242014-02-26株式会社タクマ Exhaust gas treatment method and exhaust gas treatment apparatus
CN101751089B (en)*2008-12-042012-02-29鸿富锦精密工业（深圳）有限公司 Storage device for electronic components
US8986002B2 (en)*2009-02-262015-03-248 Rivers Capital, LlcApparatus for combusting a fuel at high pressure and high temperature, and associated system
US7824636B1 (en)*2009-07-242010-11-02General Electric CompanyModel-based tuning of ammonia distribution and control for reduced operating cost of selective catalytic reduction
DK2496336T3 (en)*2009-11-052018-01-02Johnson Matthey Inc SYSTEM AND PROCEDURE FOR GASIZING AUROUS UREA FOR AMMONIA VAPE USING SECONDARY Flue gases
JP2011144766A (en)*2010-01-152011-07-28Mitsubishi Heavy Ind LtdExhaust gas denitration system and ship equipped therewith, and control method for the exhaust gas denitration system
CN101890279B (en)*2010-03-102013-03-13张作保Efficient ammonia-process denitration process and device
US8562929B2 (en)2010-04-022013-10-22Ohio UniversitySelective catalytic reduction via electrolysis of urea
MY157391A (en)*2010-04-022016-06-15Univ OhioSelective catalytic reduction via electrolysis of urea
CN102210974A (en)*2010-04-092011-10-12同方环境股份有限公司Selective catalytic reduction device by directly spraying urea solution and method thereof
CN103201411A (en)*2010-08-232013-07-10俄亥俄州立大学Selective catalytic reducton via electrolysis of urea
CN102068904B (en)*2010-12-102013-10-02中电投远达环保工程有限公司SCR flue gas denitration technology and device by urea directly-spraying method
CN102166473A (en)*2011-03-112011-08-31北京洛卡环保技术有限公司Boiler flue gas denitration system and process
ITMI20111149A1 (en)*2011-06-232012-12-24Ecospray Technologies S R L APPARATUS AND METHOD FOR NO CATALYTIC SELECTIVE REDUCTION SNCR OF NOX WITHIN INDUSTRIAL CEMENT PRODUCTION PLANTS
WO2013022869A1 (en)*2011-08-102013-02-14Fuel Tech, Inc.SELECTIVE CATALYTIC NOx REDUCTION AND CONTROL SYSTEM
JP5915927B2 (en)*2011-12-122016-05-11三菱自動車工業株式会社 Exhaust gas purification device for internal combustion engine
CN102553420B (en)*2011-12-132013-08-21中能东讯新能源科技(大连)有限公司 A high-efficiency denitrification device for pulverized coal boilers
JP5804376B2 (en)*2011-12-132015-11-04三菱自動車工業株式会社 Exhaust gas purification device for internal combustion engine
US8501131B2 (en)*2011-12-152013-08-06General Electric CompanyMethod and apparatus to inject reagent in SNCR/SCR emission system for boiler
JP2013124642A (en)*2011-12-162013-06-24Mitsubishi Motors CorpExhaust emission control device of internal combustion engine
CN102553412A (en)*2012-02-102012-07-11山东大学Method for denitrifying flue gas by using amino reducing agent with high reaction activity
US8591849B2 (en)2012-04-162013-11-26Combustion Components Associates, Inc.On demand generation of ammonia for small industrial and commercial boilers
US20130291518A1 (en)*2012-05-072013-11-07Ajay PatelExhaust system having a pre-heater
CN102794106A (en)*2012-08-222012-11-28东方电气集团东方锅炉股份有限公司Method and device for spraying reducing agent used for selective catalytic reduction (SCR) of NOx
CN102814119B (en)*2012-09-112014-06-04上海龙净环保科技工程有限公司 A power plant exhaust gas pre-dust removal ammonia injection disc SCR denitrification device
US8815197B2 (en)2012-10-052014-08-26Peerless Mfg. Co.Method for urea decomposition and ammonia feed to a selective catalytic reduction system
US8815196B2 (en)2012-10-052014-08-26Peerless Mfg. Co.Method for in-duct urea injection for selective catalytic reduction on small boilers and combustion sources
US9593609B2 (en)2012-10-052017-03-14Peerless Mfg. Co.System and method for urea decomposition to ammonia in a side stream for selective catalytic reduction
FI20126122A7 (en)*2012-10-292014-04-30Waertsilae Finland OyMethod for mixing reducing agent with exhaust gas and exhaust system
US9746177B2 (en)2012-11-122017-08-29Peerless Mfg. Co.Urea decomposition and improved SCR NOx reduction on industrial and small utility boilers
US9388978B1 (en)2012-12-212016-07-12Mitsubishi Hitachi Power Systems Americas, Inc.Methods and systems for controlling gas temperatures
KR101445038B1 (en)*2013-06-282014-09-26두산엔진주식회사System for selective catalytic reuction and catalytic regeneration
US9528414B2 (en)2013-10-142016-12-27Cummins Emission Solutions, Inc.Diesel exhaust fluid deposit mitigation
US9616383B2 (en)*2014-02-062017-04-11Johnson Matthey Catalysts (Germany) GmbhCompact selective catalytic reduction system for nitrogen oxide reduction in the oxygen-rich exhaust of 500 to 4500 kW internal combustion engines
US9861934B2 (en)*2014-06-042018-01-09Peerless Mfg.CoCyclonic injector and method for reagent gasification and decomposition in a hot gas stream
CN204609991U (en)*2014-11-102015-09-02燃料技术公司The selective catalysis NO that the urea of improvement gasifies is provided xreduction device
US9470132B2 (en)2014-12-052016-10-18Cummins Emission Solutions, Inc.Compact radial exterior exhaust assisted decomposition reactor pipe
US10300435B2 (en)2015-02-262019-05-28Ngk Spark Plug Co., Ltd.Ammonia generation apparatus and ammonia generation control apparatus
WO2017086840A1 (en)*2015-11-192017-05-26Александр Дмитриевич РЯЗАНОВСКИЙSpray-type grille for liquid
CN105363347A (en)*2015-12-152016-03-02浙江百能科技有限公司SCR denitration reaction device of coupling coal economizers
CN107664054A (en)*2016-07-302018-02-06东北林业大学 A kind of SCR system based on urea hydrolysis
CN106166446A (en)*2016-08-312016-11-30山东格润内泽姆环保科技有限公司A kind of integrated form marine diesel emission-control equipment
WO2018128902A1 (en)2017-01-052018-07-12Fuel Tech, Inc.Controlled, compact, on-demand ammonia gas generation process and apparatus
CN106838898B (en)*2017-01-222024-05-24海湾环境科技（北京）股份有限公司Heat accumulating type combustion system and heat accumulating type combustion method
CN106994301A (en)*2017-03-212017-08-01华电电力科学研究院The efficient SCR denitration structures and methods of sulfur dioxide/sulphur trioxide conversion rate can be reduced
US10273854B1 (en)2017-12-202019-04-30Cnh Industrial America LlcExhaust system for a work vehicle
US10563557B2 (en)2017-12-202020-02-18Cnh Industrial America LlcExhaust system for a work vehicle
CN109289521A (en)*2018-10-162019-02-01中国华电科工集团有限公司A kind of method of the out of stock system of low energy consumption afterburning heated type and afterburning heating flue gas
US11027237B2 (en)2019-07-192021-06-08American Electric Power Company, Inc.Direct injection of aqueous urea
JP7382595B2 (en)*2019-11-122023-11-17日立造船株式会社 Rectifier, hydrolysis equipment, and denitrification equipment
JP7254010B2 (en)*2019-11-192023-04-07日立造船株式会社 Hydrolysis system, denitrification equipment, and control method for hydrolysis system
CN112169589A (en)*2020-10-302021-01-05山东信能达工程科技有限公司Ultralow-temperature flue gas SCR denitration system and technology
CN113457407B (en)*2021-06-302022-12-23广西科学院 Graphene material production waste gas treatment process
CN114870560B (en)*2022-05-302024-08-23西安西热锅炉环保工程有限公司Full-load denitration bypass flue system coupled with urea hydrolysis and working method thereof

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US3032287A (en)1958-11-041962-05-01Epsylon Res & Dev Co LtdMagnetic tape recorders
US3599427A (en)1969-09-221971-08-17Ford Motor CoExhaust gas purification
US3900554A (en)1973-03-161975-08-19Exxon Research Engineering CoMethod for the reduction of the concentration of no in combustion effluents using ammonia
US4107272A (en)1973-05-211978-08-15Hitachi, Ltd.Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts
US4208386A (en)1976-03-031980-06-17Electric Power Research Institute, Inc.Urea reduction of NOx in combustion effluents
GB1581628A (en)1976-03-181980-12-17Johnson Matthey Co LtdCatalytic purification of automobile exhaust gases
JPS5915022B2 (en)1976-03-261984-04-07株式会社日立製作所 Catalyst for removing nitrogen oxides from exhaust gas
CA1092910A (en)*1976-07-271981-01-06Ko'hei HamabeBoiler apparatus containing denitrator
US4325924A (en)1977-10-251982-04-20Electric Power Research Institute, Inc.Urea reduction of NOx in fuel rich combustion effluents
US4393031A (en)1979-02-221983-07-12Werner HenkeProcess for efficiently removing oxides of nitrogen from exhaust gas
US4268488A (en)1979-05-101981-05-19Uop Inc.Process for the catalytic reduction of nitrogen oxides in gaseous mixtures
US4533364A (en)*1983-02-011985-08-06Electric Power Research Institute, Inc.Method for flue gas conditioning with the decomposition products of ammonium sulfate or ammonium bisulfate
EP0190416A3 (en)*1984-11-301988-07-27Waagner-Biro AktiengesellschaftProcess for separating pollutants from combustion gases
DE3523326A1 (en)1985-06-291987-01-08Steag Ag METHOD FOR SEPARATING NO (DOWN ARROW) X (DOWN ARROW) FROM GASES, ESPECIALLY SMOKE GASES
JPS6422328A (en)1987-07-181989-01-25Mitsubishi Heavy Ind LtdDiesel cogeneration system
JPH01139146A (en)1987-08-141989-05-31Mitsubishi Heavy Ind LtdMethod and device for regenerating deteriorated denitration catalyst with arsenic component
JPH0286813A (en)*1988-09-221990-03-27Mitsubishi Heavy Ind LtdStack gas denitration apparatus
DE4038054A1 (en)1990-11-291992-06-04Man Technologie Gmbh METHOD AND DEVICE FOR SELECTIVE CATALYTIC NO (DOWN ARROW) X (DOWN ARROW) REDUCTION IN OXYGEN-BASED EXHAUST GASES
US5202101A (en)*1991-03-211993-04-13General Electric Environmental ServicesRegenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream
US5252298A (en)1991-04-231993-10-12Noell, Inc.Device for cleaning gases
JP3100191B2 (en)*1991-09-022000-10-16三菱重工業株式会社 Flue gas denitration equipment
CA2088713C (en)1992-02-241999-11-16Hans Thomas HugCleaning exhaust gases from combustion installations
US5296206A (en)*1992-07-311994-03-22Foster Wheeler Energy CorporationUsing flue gas energy to vaporize aqueous reducing agent for reduction of NOx in flue gas
US5300270A (en)*1992-08-201994-04-05Wahlco Environmental Systems, Inc.Hot-side electrostatic precipitator
CZ287308B6 (en)*1993-03-102000-10-11Man Nutzfahrzeuge AktiengesellschaftApparatus for catalytic reduction of nitrogen oxides NOx in combustion products
DE4308542A1 (en)1993-03-171994-09-22Man Nutzfahrzeuge Ag Method and device for the selective catalytic reduction of NO¶x¶ in oxygen-containing gases
DK0835160T3 (en)1995-06-282000-10-09Siemens Ag Method and apparatus for catalytic purification of flue gas from a combustion plant
AU5445598A (en)*1996-11-201998-06-10Clean Diesel Technologies, Inc.Selective catalytic no reduction utilizing urea without catalyst fouling
US6077491A (en)*1997-03-212000-06-20Ec&C TechnologiesMethods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal
US6063350A (en)*1997-04-022000-05-16Clean Diesel Technologies, Inc.Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
US5968464A (en)*1997-05-121999-10-19Clean Diesel Technologies, Inc.Urea pyrolysis chamber and process for reducing lean-burn engine NOx emissions by selective catalytic reduction
DE19808722C2 (en)*1998-03-022000-03-16Siemens Ag Gas and steam turbine plant and method for operating such a plant
ITMI981155A1 (en)1998-05-251999-11-25Siirtec Nigi S P A PROCESS FOR THE PRODUCTION OF AMMONIA BY HYDROLYSIS OF THE UREA
US5988115A (en)*1998-08-111999-11-23Anderson; David K.SCR reactant injection grid
US6093380A (en)1998-10-162000-07-25Siirtec Nigi, S.P.A.Method and apparatus for pollution control in exhaust gas streams from fossil fuel burning facilities
US5943865A (en)1998-12-031999-08-31Cohen; Mitchell B.Reheating flue gas for selective catalytic systems
DE19913462A1 (en)1999-03-252000-09-28Man Nutzfahrzeuge AgUrea hydrolysis to generate ammonia for reducing nitrogen oxides in an exhaust gas catalytic converter comprises reacting urea with a side stream of exhaust gas
US6146605A (en)*1999-07-262000-11-14Hera, LlcCombined SCR/SNCR process

Also Published As

Publication numberPublication date
JP2004514828A (en)2004-05-20
DE60127164T2 (en)2008-01-10
CN101066520B (en)2010-06-16
EP1339479B1 (en)2007-03-07
KR20020081294A (en)2002-10-26
DE60127164D1 (en)2007-04-19
TW200407189A (en)2004-05-16
MXPA02007703A (en)2004-09-10
ATE355883T1 (en)2007-03-15
CA2397923C (en)2007-08-07
US7090810B2 (en)2006-08-15
US20040057887A1 (en)2004-03-25
TWI228054B (en)2005-02-21
CN1419471A (en)2003-05-21
WO2002043837A1 (en)2002-06-06
CZ305419B6 (en)2015-09-09
ES2278806T3 (en)2007-08-16
CZ2003218A3 (en)2003-12-17
HK1111648A1 (en)2008-08-15
CA2397923A1 (en)2002-06-06
EP1339479A4 (en)2004-11-24
PT1339479E (en)2007-05-31
CN101066520A (en)2007-11-07
EP1339479A1 (en)2003-09-03
CN1314475C (en)2007-05-09

Similar Documents

PublicationPublication DateTitle
AU2002228791A1 (en)Selective catalytic reduction of no, enabled by side stream urea decomposition
US7682586B2 (en)Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
EP1481719A3 (en)Engine exhaust gas treatment system and exhaust gas treatment process
NO20044858L (en) Method of Removal of Nitric Oxides
HUP9800723A2 (en)Simplified, efficient process for reducing nox', sox and particulates
NZ308045A (en)Flue gas scrubbing and waste heat recovery system
US5120516A (en)Process for removing nox emissions from combustion effluents
FI880028A7 (en) NOX REDUCTION IN EXHAUST GASES.
NO20053881D0 (en) Catalytic method for reducing nitrogen oxides in exhaust gas, and composition of the reducing agent
RU2501596C2 (en)Method and plant for purification of combustion gases containing nitrogen oxides
WO2006036311A3 (en)PLASMA-ASSISTED NOx REDUCTION
CN107297144B (en)Desulfurization and denitrification agent and preparation method and application thereof
WO2006004962A3 (en)Reversible absorption refrigeration
JPS5285056A (en)Removal of nitrogen oxides
SE0003335L (en) Process for reducing NOx compounds in the flue gases of an atmosphere
ATE188878T1 (en) METHOD FOR THE THERMAL CATALYTIC PROCESSING OF CHEMICAL WARPOINTS
CN109701380A (en)Application of the cyanuric acid in SCCR denitration and the SCCR denitrating technique method based on cyanuric acid
JPS5332865A (en)Dry denitrating method for exhaust combustion gas
DK251187A (en) PROCEDURES AND PLANTS FOR CLEANING OF ROOF GASES FROM A LINING PLANT
CN210544296U (en)Flue gas denitration device for hazardous waste incineration system
JPS546859A (en)Denitrating method for exhaust gas containing co
WO1995009810A1 (en)Low pressure formation of a urea hydrolysate for nitrogen oxides reduction
Chun et al.Reduction of NOx emission from fuel nitrogen in new staged fuelling system (1)(Characteristics of NOx formation & reduction)
JPS5499076A (en)Removing method for nitrogen oxides contained in exhaust gas
RU2610596C1 (en)Method of producing thermally expanded graphite
[8]ページ先頭
©2009-2025 Movatter.jp