DK1019321T3 - Fremgangsmåder til fremstilling af ammoniak fra urinstof og anvendelser deraf - Google Patents

Fremgangsmåder til fremstilling af ammoniak fra urinstof og anvendelser deraf

Info

Publication number
DK1019321T3
DK1019321T3 DK98913061T DK98913061T DK1019321T3 DK 1019321 T3 DK1019321 T3 DK 1019321T3 DK 98913061 T DK98913061 T DK 98913061T DK 98913061 T DK98913061 T DK 98913061T DK 1019321 T3 DK1019321 T3 DK 1019321T3
Authority
DK
Denmark
Prior art keywords
ammonia
urea
applications
preparation
methods
Prior art date
Application number
DK98913061T
Other languages
English (en)
Inventor
Herbert W Spencer Iii
Hal B H Cooper
Original Assignee
Ec & C Technologies 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 filed litigation Critical https://patents.darts-ip.com/?family=25237363&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1019321(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ec & C Technologies Inc filed Critical Ec & C Technologies Inc
Application granted granted Critical
Publication of DK1019321T3 publication Critical patent/DK1019321T3/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/08—Preparation of ammonia from nitrogenous organic substances
    • C01C1/086—Preparation of ammonia from nitrogenous organic substances from urea
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/08—Preparation of ammonia from nitrogenous organic substances
    • 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
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/026—Preparation of ammonia from inorganic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Electrostatic Separation (AREA)
DK98913061T 1997-03-21 1998-03-20 Fremgangsmåder til fremstilling af ammoniak fra urinstof og anvendelser deraf DK1019321T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/822,932 US6077491A (en) 1997-03-21 1997-03-21 Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal

Publications (1)

Publication Number Publication Date
DK1019321T3 true DK1019321T3 (da) 2004-06-01

Family

ID=25237363

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98913061T DK1019321T3 (da) 1997-03-21 1998-03-20 Fremgangsmåder til fremstilling af ammoniak fra urinstof og anvendelser deraf

Country Status (12)

Country Link
US (5) US6077491A (da)
EP (2) EP1417996A3 (da)
JP (1) JP3791933B2 (da)
KR (1) KR100514508B1 (da)
AT (1) ATE258820T1 (da)
AU (1) AU6769898A (da)
CA (1) CA2284292C (da)
DE (1) DE69821505T2 (da)
DK (1) DK1019321T3 (da)
ES (1) ES2212280T3 (da)
PT (1) PT1019321E (da)
WO (1) WO1998042623A1 (da)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6077491A (en) * 1997-03-21 2000-06-20 Ec&C Technologies Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal
ITMI981155A1 (it) * 1998-05-25 1999-11-25 Siirtec Nigi S P A Processo per la produzione di ammoniaca mediante idrolisi dell'urea
US6093380A (en) * 1998-10-16 2000-07-25 Siirtec Nigi, S.P.A. Method and apparatus for pollution control in exhaust gas streams from fossil fuel burning facilities
US6511644B1 (en) * 2000-08-28 2003-01-28 The Chemithon Corporation Method for removing contaminants in reactors
US6436359B1 (en) * 2000-10-25 2002-08-20 Ec&C Technologies, Inc. Method for controlling the production of ammonia from urea for NOx scrubbing
US7829033B2 (en) * 2003-07-03 2010-11-09 Fuel Tech, Inc. Selective catalytic reduction of NOx enabled by sidestream urea decomposition
US7615200B2 (en) * 2000-12-01 2009-11-10 Fuel Tech, Inc. Selective catalytic reduction of NOx enabled by urea decomposition in heat-exchanger bypass
JP2004514828A (ja) * 2000-12-01 2004-05-20 フューエル　テック　インコーポレーテッド 側流尿素分解によって可能になるＮＯｘの選択触媒還元
DE10107034B4 (de) * 2001-02-15 2012-05-03 Mann + Hummel Gmbh Vorrichtung zur Verlängerung der chemischen Standzeit eines Filtermediums
US6761868B2 (en) * 2001-05-16 2004-07-13 The Chemithon Corporation Process for quantitatively converting urea to ammonia on demand
DE10154421A1 (de) * 2001-11-06 2003-05-22 Bosch Gmbh Robert Verfahren und Vorrichtung zur Verminderung von Stickoxiden eines Abgases
DE10206028A1 (de) * 2002-02-14 2003-08-28 Man Nutzfahrzeuge Ag Verfahren und Vorrichtung zur Erzeugung von Ammoniak
JP3820163B2 (ja) 2002-02-22 2006-09-13 三井化学株式会社 尿素濃度測定方法および装置
US20030211024A1 (en) * 2002-05-10 2003-11-13 Wojichowski David Lee Methods of converting urea to ammonia for SCR, SNCR and flue gas conditioning
US6865881B2 (en) * 2002-11-18 2005-03-15 Diesel & Combustion Technologies, Llc System and method for reducing nitrogen oxides in combustion exhaust streams
US6887449B2 (en) * 2002-11-21 2005-05-03 The Chemithon Corporation Method of quantitatively producing ammonia from urea
JP4262522B2 (ja) 2003-05-28 2009-05-13 株式会社日立ハイテクノロジーズ エンジン用排気ガス処理装置および排気ガス処理方法
JP2005105970A (ja) * 2003-09-30 2005-04-21 Nissan Diesel Motor Co Ltd エンジンの排気浄化装置
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
US7371313B2 (en) * 2004-05-18 2008-05-13 Matheson Tri-Gas, Inc. On-site generation, purification, and distribution of ultra-pure anhydrous ammonia
MX2007001367A (es) * 2004-08-06 2007-04-10 Eig Inc Ultra limpieza de gases de combustion, incluyendo la eliminacion de co2.
US7273595B2 (en) * 2004-12-30 2007-09-25 Spokoyny Felix E Method and apparatus for the production of gaseous ammonia from a urea solution
JP4646063B2 (ja) * 2005-02-15 2011-03-09 バブコック日立株式会社 尿素の分解触媒を用いた排ガス脱硝方法及び装置
US20070048204A1 (en) * 2005-09-01 2007-03-01 Rahul Mital Flash injector for NH3-SCR NOx aftertreatment
US7485272B2 (en) * 2005-11-30 2009-02-03 Caterpillar Inc. Multi-stage system for selective catalytic reduction
US7805929B2 (en) * 2005-12-21 2010-10-05 Caterpillar Inc Selective catalytic reduction system
DE102006023146A1 (de) * 2006-05-16 2007-11-22 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zum Bereitstellen eines gasförmigen Stoffgemisches
DE102006023147A1 (de) * 2006-05-16 2008-01-10 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zum Bereitstellen eines gasförmigen Stoffgemisches
EP2069049A2 (en) * 2006-08-22 2009-06-17 Babcock Power Inc. Thermal decomposition of urea in a side stream of combustion flue gas using a regenerative heat exchanger
DE102006047019A1 (de) * 2006-10-02 2008-04-03 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zur Bereitstellung eines ein Reduktionsmittel umfassenden Gasstroms
US20080267837A1 (en) 2007-04-27 2008-10-30 Phelps Calvin E Conversion of urea to reactants for NOx reduction
US8445398B2 (en) * 2007-07-31 2013-05-21 Exxonmobil Chemical Patents Inc. Ion exchange process for making molecular sieve composition
JP2009035644A (ja) * 2007-08-02 2009-02-19 Denso Corp 尿素ｓｃｒシステム用不凍尿素溶液および尿素ｓｃｒシステム
DE102007048691B4 (de) * 2007-10-10 2011-05-19 Pierburg Gmbh Fördervorrichtung zur Zuführung eines Feststoffes zu einem Reaktor eines Abgasnachbehandlungssystems
US8182577B2 (en) * 2007-10-22 2012-05-22 Alstom Technology Ltd Multi-stage CO2 removal system and method for processing a flue gas stream
US7862788B2 (en) * 2007-12-05 2011-01-04 Alstom Technology Ltd Promoter enhanced chilled ammonia based system and method for removal of CO2 from flue gas stream
US20090148370A1 (en) 2007-12-06 2009-06-11 Spencer Iii Herbert W Process to produce ammonia from urea
EP2107108A1 (en) * 2008-03-31 2009-10-07 KRÜGER Off-Shore A/S An apparatus and a method for continuous thermal hydrolysis of biological material
US20090282977A1 (en) * 2008-05-14 2009-11-19 Alstom Technology Ltd Gas purification system having provisions for co2 injection of wash water
US8852542B2 (en) * 2008-05-27 2014-10-07 Fuel Tech, Inc. Selective catalytic NOx reduction process and apparatus providing improved gassification of urea to form ammonia-containing gas
US7846240B2 (en) 2008-10-02 2010-12-07 Alstom Technology Ltd Chilled ammonia based CO2 capture system with water wash system
US8404027B2 (en) * 2008-11-04 2013-03-26 Alstom Technology Ltd Reabsorber for ammonia stripper offgas
CN101751089B (zh) * 2008-12-04 2012-02-29 鸿富锦精密工业（深圳）有限公司 电子元件的收容装置
BRPI1007418A2 (pt) * 2009-01-30 2017-09-12 Basf Corp método para produzir amônia
US8292989B2 (en) * 2009-10-30 2012-10-23 Alstom Technology Ltd Gas stream processing
US8784761B2 (en) * 2009-11-20 2014-07-22 Alstom Technology Ltd Single absorber vessel to capture CO2
US8790605B2 (en) * 2009-09-15 2014-07-29 Alstom Technology Ltd Method for removal of carbon dioxide from a process gas
US8309047B2 (en) 2009-09-15 2012-11-13 Alstom Technology Ltd Method and system for removal of carbon dioxide from a process gas
US8518156B2 (en) * 2009-09-21 2013-08-27 Alstom Technology Ltd Method and system for regenerating a solution used in a wash vessel
FR2953737B1 (fr) * 2009-12-11 2013-03-15 Inst Francais Du Petrole Procede de traitement de polluants contenus dans des gaz d'echappement, notamment d'un moteur a combustion interne, et installation utilisant un tel procede
EP2322265A1 (en) 2009-11-12 2011-05-18 Alstom Technology Ltd Flue gas treatment system
US8293200B2 (en) * 2009-12-17 2012-10-23 Alstom Technology Ltd Desulfurization of, and removal of carbon dioxide from, gas mixtures
US20110146489A1 (en) * 2009-12-17 2011-06-23 Alstom Technology Ltd Ammonia removal, following removal of co2, from a gas stream
KR101800476B1 (ko) 2010-04-02 2017-11-22 오하이오 유니버시티 우레아의 전기분해를 통한 선택적 촉매 환원
US8562929B2 (en) 2010-04-02 2013-10-22 Ohio University Selective catalytic reduction via electrolysis of urea
JP5581790B2 (ja) * 2010-04-22 2014-09-03 いすゞ自動車株式会社 Ｓｃｒ装置へのアンモニア供給システム
CN103201411A (zh) * 2010-08-23 2013-07-10 俄亥俄州立大学 通过电解尿素而进行的选择性催化还原
US8728209B2 (en) 2010-09-13 2014-05-20 Alstom Technology Ltd Method and system for reducing energy requirements of a CO2 capture system
US8623307B2 (en) 2010-09-14 2014-01-07 Alstom Technology Ltd. Process gas treatment system
US8329128B2 (en) 2011-02-01 2012-12-11 Alstom Technology Ltd Gas treatment process and system
WO2012104205A1 (en) 2011-02-04 2012-08-09 Paul Scherrer Institut Ammonia generator converting liquid ammonia precursor solutions to gaseous ammonia for denox-applications using selective catalytic reduction of nitrogen oxides
US9028784B2 (en) 2011-02-15 2015-05-12 Alstom Technology Ltd Process and system for cleaning a gas stream
DE102011122970B3 (de) * 2011-06-09 2022-04-28 Mehldau & Steinfath Umwelttechnik Gmbh Vorrichtung zur Reduktion von Stickoxiden
JP5751165B2 (ja) * 2011-12-28 2015-07-22 いすゞ自動車株式会社 Ｓｃｒコンバータへのアンモニア供給システム
US9162177B2 (en) 2012-01-25 2015-10-20 Alstom Technology Ltd Ammonia capturing by CO2 product liquid in water wash liquid
US9863725B1 (en) * 2012-02-29 2018-01-09 The United States Of America As Represented By The Secretary Of The Air Force Systems and methods for thermal management through use of ammonium carbamate
US8864879B2 (en) 2012-03-30 2014-10-21 Jalal Askander System for recovery of ammonia from lean solution in a chilled ammonia process utilizing residual flue gas
US8591849B2 (en) 2012-04-16 2013-11-26 Combustion Components Associates, Inc. On demand generation of ammonia for small industrial and commercial boilers
US8951492B2 (en) * 2012-04-25 2015-02-10 Fuel Tech, Inc. Ammonia gas generation from urea for low temperature process requirements
JP5315493B1 (ja) * 2012-06-13 2013-10-16 武史 畑中 次世代カーボンフリー動力装置及びこれを利用した次世代カーボンフリー移動体
JP5315491B1 (ja) * 2012-06-13 2013-10-16 武史 畑中 次世代カーボンフリー燃焼器、これを利用した次世代カーボンフリーエンジン及び次世代カーボンフリー発電装置並びに次世代カーボンフリー燃焼器、次世代カーボンフリーエンジン及び次世代カーボンフリー発電装置に利用される尿素水
EP2724766A1 (en) 2012-10-26 2014-04-30 Alstom Technology Ltd A method of treating a carbon dioxide rich flue gas and a flue gas treatment system
US9746177B2 (en) 2012-11-12 2017-08-29 Peerless Mfg. Co. Urea decomposition and improved SCR NOx reduction on industrial and small utility boilers
CN102974200B (zh) * 2012-12-05 2015-06-03 寿光富康制药有限公司 一种氮氧化物废气处理装置及氮氧化物废气处理方法
EP2746548B1 (en) * 2012-12-21 2017-03-15 Inergy Automotive Systems Research (Société Anonyme) Method and system for purifying the exhaust gases of a combustion engine.
US9447996B2 (en) 2013-01-15 2016-09-20 General Electric Technology Gmbh Carbon dioxide removal system using absorption refrigeration
US8986640B1 (en) 2014-01-07 2015-03-24 Alstom Technology Ltd System and method for recovering ammonia from a chilled ammonia process
US9586831B2 (en) * 2014-06-09 2017-03-07 Wahlco, Inc. Urea to ammonia process
EP2975233B1 (en) * 2014-07-18 2018-06-06 Plastic Omnium Advanced Innovation and Research Ammonia precursor generating system for use in a vehicle
WO2016009083A1 (en) * 2014-07-18 2016-01-21 Plastic Omnium Advanced Innovation And Research S.A. Ammonia generating system for use in a vehicle
CN104474892A (zh) * 2014-12-09 2015-04-01 邹英奎 一种脱硝粉的生产方法
CN105314653B (zh) * 2015-11-11 2017-05-10 中国华能集团公司 一种尿素水解反应器控制系统和方法
KR102154368B1 (ko) * 2015-12-21 2020-09-09 현대중공업 주식회사 엔진용 scr 시스템
IT201600131605A1 (it) * 2016-12-28 2018-06-28 Ama Spa Impianto di piccole dimensioni e procedimento ottimizzato per la preparazione di una soluzione acquosa di urea
EP3470639A1 (en) 2017-10-16 2019-04-17 Winterthur Gas & Diesel Ltd. Device and method for generating a reducing agent gas from a liquid or solid reducing agent
US10767529B2 (en) 2018-11-08 2020-09-08 Faurecia Emissions Control Technologies, Usa, Llc Automotive exhaust aftertreatment system having onboard ammonia reactor with heated doser
US10876454B2 (en) 2018-11-08 2020-12-29 Faurecia Emissions Control Technologies, Usa, Llc Automotive exhaust aftertreatment system with multi-reductant injection and doser controls
US10683787B2 (en) 2018-11-08 2020-06-16 Faurecia Emissions Control Technologies, Usa, Llc Automotive exhaust aftertreatment system having onboard ammonia reactor with hybrid heating
CN111185083A (zh) * 2018-11-15 2020-05-22 东莞市升佳净水材料有限公司 一种新型燃烧炉烟气粉状固体脱硝装置
US11193413B2 (en) 2019-12-12 2021-12-07 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with virtual temperature determination and control
US11319853B2 (en) 2020-03-31 2022-05-03 Faurecia Emissions Control Technologies, Usa, Llc Automotive exhaust aftertreatment system with doser
US11022014B1 (en) 2020-04-28 2021-06-01 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with heated flash-boiling doser
US11511239B2 (en) 2020-04-29 2022-11-29 Faurecia Emissions Control Technologies, Usa, Llc Heated flash-boiling doser with integrated helix
US11092054B1 (en) 2020-04-29 2021-08-17 Faurecia Emissions Control Technologies, Usa, Llc Flash-boiling doser with thermal transfer helix
US11384667B2 (en) 2020-05-29 2022-07-12 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with heated dosing control
US11225894B1 (en) 2020-06-30 2022-01-18 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with thermally controlled reagent doser
CN111689497B (zh) * 2020-07-17 2024-07-02 宁夏宜鑫环保科技有限公司 可抑制二噁英生成的危险废炭节能活化再生系统
CN112354487B (zh) * 2020-11-06 2022-10-14 李东田 一种碳酸铵原料气的制备方法
CN112588089A (zh) * 2020-11-23 2021-04-02 西安西热锅炉环保工程有限公司 一种基于醇类吸收工艺的尿素水解制氨产品气脱水系统
CN113101783A (zh) * 2021-04-29 2021-07-13 西安热工研究院有限公司 一种将尿素水解制氨产品气分离用于化学加氨系统的系统
EP4140980A1 (en) * 2021-08-26 2023-03-01 Yara International ASA Method for producing a sncr/scr solution
CN113788484B (zh) * 2021-10-11 2023-07-18 西安热工研究院有限公司 一种尿素水解产品气净化系统及方法

Family Cites Families (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202537C (da)
US3084416A (en) * 1959-12-28 1963-04-09 Gen Electric Cutting tool
US3102326A (en) * 1960-04-20 1963-09-03 Alfred R Conti Cutting tool
US3303553A (en) * 1964-08-24 1967-02-14 Viking Tool Company Cutting tool assembly
CH485505A (de) * 1968-02-02 1970-02-15 Ver Drahtwerke Ag Spanabhebendes Werkzeug
US3731356A (en) * 1971-06-18 1973-05-08 Gen Electric Cutting tool
DE2362887A1 (de) * 1972-06-21 1975-06-26 Ivo Mavrovic Verfahren zur rueckgewinnung von restlichem ammoniak aus schwachen waessrigen loesungen desselben
US3826815A (en) 1972-06-21 1974-07-30 I Mavrovic Recovery of residual ammonia from weak aqueous solutions thereof
US3864799A (en) * 1973-01-19 1975-02-11 Kennametal Inc Tool holder
US3922222A (en) 1973-02-20 1975-11-25 Cf Ind Method for treatment of urea crystallizer condensate
US3900554A (en) 1973-03-16 1975-08-19 Exxon Research Engineering Co Method for the reduction of the concentration of no in combustion effluents using ammonia
US3862815A (en) 1973-07-20 1975-01-28 Valley Metallurg Processing Record producing apparatus
US4220632A (en) 1974-09-10 1980-09-02 The United States Of America As Represented By The United States Department Of Energy Reduction of nitrogen oxides with catalytic acid resistant aluminosilicate molecular sieves and ammonia
IT1060622B (it) 1976-05-14 1982-08-20 Snam Progetti Procedimento per la riutilizzazio ne delle acque di processo negli impianti combinati urea e ammoniaca
US4341640A (en) 1976-09-27 1982-07-27 Standard Oil Company Urea hydrolysis
US4087513A (en) 1977-08-12 1978-05-02 Olin Corporation Method of hydrolyzing urea contained in waste water streams
US4168299A (en) * 1978-03-20 1979-09-18 Olin Corporation Catalytic method for hydrolyzing urea
US4189264A (en) * 1978-09-15 1980-02-19 Fansteel Inc. Cutting insert and chip control assembly
NL7903623A (nl) * 1979-05-09 1980-11-11 Stamicarbon Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine.
NL8100989A (nl) 1981-02-28 1982-09-16 Unie Van Kunstmestfab Bv Werkwijze voor het verwijderen van ureum, ammoniak en kooldioxide uit verdunde waterige oplossingen.
NL8102391A (nl) * 1981-05-15 1982-12-01 Unie Van Kunstmestfab Bv Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding.
DD202537A5 (de) * 1981-12-08 1983-09-21 Unie Van Kunstmestfab Bv Verfahren zum entfernen von harnstoff, ammoniak und kohlendioxid aus verduennten waessrigen loesungen
US4533364A (en) 1983-02-01 1985-08-06 Electric Power Research Institute, Inc. Method for flue gas conditioning with the decomposition products of ammonium sulfate or ammonium bisulfate
JPH02268811A (ja) * 1989-04-10 1990-11-02 Hitachi Zosen Corp 尿素の加水分解によるアンモニアを用いる脱硝方法
US5034030A (en) * 1989-07-03 1991-07-23 The University Of North Dakota School Of Engineering & Mines Foundation (Und-Sem Foundation) Process of flue gas conditioning applied to fabric filtration
IT1232670B (it) 1989-09-15 1992-03-02 Snam Progetti Procedimento per la purificazione delle acque reflue prodotte dagli impianti di produzione dell'urea.
US5543123A (en) * 1990-08-01 1996-08-06 Nalco Fuel Tech Low pressure formation of a urea hydrolysate for nitrogen oxides reduction
US5240688A (en) 1990-08-01 1993-08-31 Fuel Tech Gmbh Process for the in-line hydrolysis of urea
US5098680A (en) * 1990-10-15 1992-03-24 Exxon Research & Engineering Company Aqueous ammonia injection scheme
DE4038054A1 (de) * 1990-11-29 1992-06-04 Man Technologie Gmbh Verfahren und vorrichtung zur selektiven katalytischen no(pfeil abwaerts)x(pfeil abwaerts)-reduktion in sauerstoffhaltigen abgasen
US5281403B1 (en) * 1991-09-27 1996-06-11 Noell Inc Method for converting urea to ammonia
US5252308A (en) * 1991-12-31 1993-10-12 Union Oil Company Of California Transporting urea for quantitative conversion into ammonia
US5567226A (en) * 1992-10-09 1996-10-22 Lookman; Aziz A. Apparatus and method for enhancing the performance of a particulate collection device
WO1994013391A1 (en) * 1992-12-08 1994-06-23 Nalco Fuel Tech Process for improving the performance of an electrostatic precipitator
JP3638638B2 (ja) * 1994-08-24 2005-04-13 バブコック日立株式会社 固体還元剤を用いた脱硝装置
JPH0871372A (ja) * 1994-09-07 1996-03-19 Babcock Hitachi Kk 尿素を用いた脱硝装置と方法
US6077491A (en) * 1997-03-21 2000-06-20 Ec&C Technologies Methods for the production of ammonia from urea and/or biuret, and uses for NOx and/or particulate matter removal
ITMI981155A1 (it) 1998-05-25 1999-11-25 Siirtec Nigi S P A Processo per la produzione di ammoniaca mediante idrolisi dell'urea
US6093380A (en) * 1998-10-16 2000-07-25 Siirtec Nigi, S.P.A. Method and apparatus for pollution control in exhaust gas streams from fossil fuel burning facilities

Also Published As

Publication number Publication date
US6730280B2 (en) 2004-05-04
US7220395B2 (en) 2007-05-22
WO1998042623A1 (en) 1998-10-01
PT1019321E (pt) 2004-06-30
ES2212280T3 (es) 2004-07-16
US20020102197A1 (en) 2002-08-01
AU6769898A (en) 1998-10-20
EP1019321B1 (en) 2004-02-04
ATE258820T1 (de) 2004-02-15
DE69821505T2 (de) 2004-12-16
US6506350B2 (en) 2003-01-14
US20040126294A1 (en) 2004-07-01
JP3791933B2 (ja) 2006-06-28
US6322762B1 (en) 2001-11-27
EP1417996A3 (en) 2004-11-24
EP1019321A4 (en) 2001-09-12
KR20010005610A (ko) 2001-01-15
KR100514508B1 (ko) 2005-09-15
EP1019321A1 (en) 2000-07-19
EP1417996A2 (en) 2004-05-12
DE69821505D1 (de) 2004-03-11
CA2284292C (en) 2003-01-07
US20030053943A1 (en) 2003-03-20
CA2284292A1 (en) 1998-10-01
JP2001518047A (ja) 2001-10-09
US6077491A (en) 2000-06-20

Similar Documents

Publication Publication Date Title
DK1019321T3 (da) Fremgangsmåder til fremstilling af ammoniak fra urinstof og anvendelser deraf
AU2009335366B2 (en) Method for removing impurities from gas flows comprising oxygen
WO2004110595A3 (en) Method for recovery of co2 from gas streams
ATE130780T1 (de) Methode zum entfernen von nox- und sox-emissionen aus verbrennungssystemen unter verwendung stickstoffhaltiger verbindungen.
DK0407287T3 (da) Fremgangsmåde til røggaskonditionering anvendt på filtrering gennem stof
WO2002062453A8 (en) Process for removing sulfur oxides from gaseous mixtures
DK1152815T3 (da) Strömningsopspaltningsproces og apparat
CA2311199A1 (en) Carbon dioxide recovery with composite amine blends
DE60330861D1 (de) VERFAHREN ZUM REINIGEN VON NOx IN ABGASEN UNTER VERWENDUNG VON CHLORDIOXID
JPS5843222A (ja) 廃ガスより硫黄酸化物および窒素酸化物を除去する方法
DK1355721T3 (da) Fremgangsmåde til regulering af produktionen af ammoniak ud fra urea med henblik på NOx-scrubber-rensning
DE60143923D1 (de) Verfahren zur Wiedergewinnung von Ammoniak aus einem Gasgemisch
ATE519535T1 (de) Entfernung von kohlendioxid aus rauchgasen
WO2007038605A3 (en) Flue gas scrubbing with a multifunction impinging stream gas-liquid reactor
ATE139139T1 (de) Verfahren zur abgaskonditionierung
FI97333B (fi) Menetelmä polttoprosessin NOx:n vähentämiseksi
DE59009850D1 (de) Verfahren zur Abtrennung von Isocyansäure aus einem Gemisch von Isocyansäure und Ammoniak.
ATE118175T1 (de) Verfahren und vorrichtung zur minderung der stickoxid-konzentration im abgasstrom von verbrennungsprozessen.
US4878442A (en) Nox control for high nitric oxide concentration flows through combustion-driven reduction
DE50203575D1 (de) Verfahren zur selektiven katalytischen reduktion von stickoxiden mit ammoniak im mageren abgas eines verbrennungsprozesses
MXPA04011293A (es) Filtro de cartucho para purificacion de gases.
ATE69735T1 (de) Verfahren zum entfernen von stickoxiden aus abgasen.
Jeong et al. NOx removal by selective noncatalytic reduction with urea solution in a fluidized bed reactor
JPS5750560A (en) Method for refining of waste gas for electrostatic dust precipitator
SE441150B (sv) Forfarande for att ur avgaser fran forbrenningsanleggningar samtidigt avlegsna kveveoxider och svaveloxider under tillsats av ammoniak