DE69117163D1 - Stickoxidreduktion mittels eines harnstoffhydrolysats - Google Patents

Stickoxidreduktion mittels eines harnstoffhydrolysats

Info

Publication number
DE69117163D1
DE69117163D1 DE69117163T DE69117163T DE69117163D1 DE 69117163 D1 DE69117163 D1 DE 69117163D1 DE 69117163 T DE69117163 T DE 69117163T DE 69117163 T DE69117163 T DE 69117163T DE 69117163 D1 DE69117163 D1 DE 69117163D1
Authority
DE
Germany
Prior art keywords
hydrolysate
urea
nitrogen reduction
urea hydrolysate
nitrogen oxides
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.)
Expired - Fee Related
Application number
DE69117163T
Other languages
English (en)
Other versions
DE69117163T2 (de
Inventor
Harpe Thure Von
Reinhard Pachaly
M Lin
Daniel Diep
Joseph Wegrzyn
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.)
Nalco Fuel Tech
Original Assignee
Nalco Fuel Tech
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 Nalco Fuel Tech filed Critical Nalco Fuel Tech
Application granted granted Critical
Publication of DE69117163D1 publication Critical patent/DE69117163D1/de
Publication of DE69117163T2 publication Critical patent/DE69117163T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/40—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a hydrolysis catalyst
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Cosmetics (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
DE69117163T 1990-08-01 1991-08-01 Stickoxidreduktion mittels eines harnstoffhydrolysats Expired - Fee Related DE69117163T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/561,154 US5240688A (en) 1990-08-01 1990-08-01 Process for the in-line hydrolysis of urea
PCT/US1991/005461 WO1992002450A1 (en) 1990-08-01 1991-08-01 Nitrogen oxides reduction using a urea hydrolysate

Publications (2)

Publication Number Publication Date
DE69117163D1 true DE69117163D1 (de) 1996-03-28
DE69117163T2 DE69117163T2 (de) 1996-09-05

Family

ID=24240855

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69114503T Expired - Fee Related DE69114503T2 (de) 1990-08-01 1991-08-01 Verfahren zur in-line-hydrolyse von harnstoff.
DE69117163T Expired - Fee Related DE69117163T2 (de) 1990-08-01 1991-08-01 Stickoxidreduktion mittels eines harnstoffhydrolysats

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69114503T Expired - Fee Related DE69114503T2 (de) 1990-08-01 1991-08-01 Verfahren zur in-line-hydrolyse von harnstoff.

Country Status (8)

Country Link
US (2) US5240688A (de)
EP (2) EP0542792B1 (de)
AT (2) ATE129925T1 (de)
AU (1) AU8297991A (de)
CA (2) CA2063811C (de)
DE (2) DE69114503T2 (de)
FI (1) FI930377A (de)
WO (2) WO1992002291A1 (de)

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EP0555746B1 (de) * 1992-02-10 1997-09-10 MAN Nutzfahrzeuge Aktiengesellschaft Vorrichtung zur katalytischen NOX-Reduktion
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US5489419A (en) * 1992-10-13 1996-02-06 Nalco Fuel Tech Process for pollution control
US5536482A (en) * 1992-10-13 1996-07-16 Nalco Fuel Tech Process for pollution control
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EP0722421A4 (de) * 1993-10-06 1997-05-28 Nalco Fuel Tech Niederdruckherstellung eines harnstoffhydrolysats für die reduktion von stickstoffoxiden
US5489420A (en) * 1994-03-10 1996-02-06 Nalco Fuel Tech Nitrogen oxides reducing agent and a phosphate
US5658547A (en) * 1994-06-30 1997-08-19 Nalco Fuel Tech Simplified efficient process for reducing NOx, SOx, and particulates
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US8562929B2 (en) 2010-04-02 2013-10-22 Ohio University Selective catalytic reduction via electrolysis of urea
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WO2012123378A1 (en) 2011-03-11 2012-09-20 Puregeneration (Uk) Ltd Production and use of cyanoguanidine and cyanamide
US8518354B2 (en) * 2011-07-29 2013-08-27 Deere & Company Diesel exhaust fluid formulation having a high ammonium content and a low freezing point
CN102553412A (zh) * 2012-02-10 2012-07-11 山东大学 一种利用高反应活性氨基还原剂进行烟气脱硝的方法
DE102014204307A1 (de) 2013-03-19 2014-09-25 Ford Global Technologies, Llc Verfahren und Anordnung zur Behandlung von Abgasen eines Verbrennungsmotors
EP2926886A1 (de) * 2014-04-01 2015-10-07 Inergy Automotive Systems Research (Société Anonyme) System mit Zersetzungseinheit zur Verwendung an Bord eines Fahrzeugs
US9586831B2 (en) 2014-06-09 2017-03-07 Wahlco, Inc. Urea to ammonia process
CN104477939B (zh) * 2014-10-28 2017-01-18 河南骏化发展股份有限公司 一种低压水解工艺
CN106807193A (zh) * 2015-12-02 2017-06-09 昆山市三维换热器有限公司 一种烟气脱硝工艺系统
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
CN106986434B (zh) * 2017-04-20 2022-12-02 中国科学院生态环境研究中心 一种抗生素生产废水的预处理方法
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
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
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
US11193413B2 (en) 2019-12-12 2021-12-07 Faurecia Emissions Control Technologies, Usa, Llc Exhaust aftertreatment system with virtual temperature determination and control
CN111135714A (zh) * 2020-01-15 2020-05-12 安徽晨晰洁净科技有限公司 一种碳酸氢铵作为scr脱硝还原剂的方法
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
CN112354487B (zh) * 2020-11-06 2022-10-14 李东田 一种碳酸铵原料气的制备方法
CN112661172A (zh) * 2020-12-23 2021-04-16 中国华电科工集团有限公司 一种scr脱硝尿素非均相催化水解制氨的系统及方法
CN114405450A (zh) * 2022-02-23 2022-04-29 西安热工研究院有限公司 一种填料式的尿素催化水解装置
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Also Published As

Publication number Publication date
EP0542792A1 (de) 1993-05-26
CA2063811C (en) 2000-05-09
EP0495089A4 (en) 1993-03-10
DE69114503D1 (de) 1995-12-14
DE69117163T2 (de) 1996-09-05
EP0495089A1 (de) 1992-07-22
CA2063811A1 (en) 1992-02-02
CA2088576A1 (en) 1992-02-02
WO1992002291A1 (en) 1992-02-20
DE69114503T2 (de) 1996-05-02
FI930377A0 (fi) 1993-01-29
ATE134155T1 (de) 1996-02-15
WO1992002450A1 (en) 1992-02-20
US5399325A (en) 1995-03-21
FI930377A (fi) 1993-01-29
US5240688A (en) 1993-08-31
EP0495089B1 (de) 1996-02-14
ATE129925T1 (de) 1995-11-15
EP0542792B1 (de) 1995-11-08
AU8297991A (en) 1992-03-02

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