ATE123969T1 - Verfahren zur reduktion von stickstoffoxiden ohne erzeugung von distickstoffmonoxid. - Google Patents

Verfahren zur reduktion von stickstoffoxiden ohne erzeugung von distickstoffmonoxid.

Info

Publication number
ATE123969T1
ATE123969T1 AT91905926T AT91905926T ATE123969T1 AT E123969 T1 ATE123969 T1 AT E123969T1 AT 91905926 T AT91905926 T AT 91905926T AT 91905926 T AT91905926 T AT 91905926T AT E123969 T1 ATE123969 T1 AT E123969T1
Authority
AT
Austria
Prior art keywords
nitrogen oxides
generating
dinitrogen monoxide
reducing nitrogen
effluent
Prior art date
Application number
AT91905926T
Other languages
English (en)
Inventor
John E Hofmann
Barry N Sprague
William H Sun
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
Application filed by Fuel Tech Inc filed Critical Fuel Tech Inc
Application granted granted Critical
Publication of ATE123969T1 publication Critical patent/ATE123969T1/de

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
    • 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)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Dental Preparations (AREA)
AT91905926T 1990-03-07 1991-03-06 Verfahren zur reduktion von stickstoffoxiden ohne erzeugung von distickstoffmonoxid. ATE123969T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/489,919 US4997631A (en) 1990-03-07 1990-03-07 Process for reducing nitrogen oxides without generating nitrous oxide

Publications (1)

Publication Number Publication Date
ATE123969T1 true ATE123969T1 (de) 1995-07-15

Family

ID=23945830

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91905926T ATE123969T1 (de) 1990-03-07 1991-03-06 Verfahren zur reduktion von stickstoffoxiden ohne erzeugung von distickstoffmonoxid.

Country Status (9)

Country Link
US (1) US4997631A (de)
EP (1) EP0524953B1 (de)
AT (1) ATE123969T1 (de)
AU (1) AU638196B2 (de)
CA (1) CA2081379A1 (de)
DE (1) DE69110670T2 (de)
FI (1) FI923873L (de)
HU (1) HUT62536A (de)
WO (1) WO1991013829A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5441713A (en) * 1988-04-29 1995-08-15 Nalco Fuel Tech Hardness suppression in urea solutions
US5616307A (en) * 1988-04-29 1997-04-01 Nalco Fuel Tech Boiler operation with decreased NOx and waste water discharge
US6051040A (en) * 1988-12-28 2000-04-18 Clean Diesel Technologies, Inc. Method for reducing emissions of NOx and particulates from a diesel engine
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
US5048432B1 (en) * 1990-12-27 1996-07-02 Nalco Fuel Tech Process and apparatus for the thermal decomposition of nitrous oxide
US5229090A (en) * 1991-07-03 1993-07-20 Nalco Fuel Tech Process for nitrogen oxides reduction to lowest achievable level
US5281403B1 (en) * 1991-09-27 1996-06-11 Noell Inc Method for converting urea to ammonia
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
WO1994009896A1 (en) * 1992-11-02 1994-05-11 Nalco Fuel Tech Process and composition for sorbent reduction of n2o
DE69416137T2 (de) * 1993-05-07 1999-07-22 Nalco Fuel Tech, Naperville, Ill. VERFAHREN UND VORRICHTUNG ZUR VERBESSERUNG DER VERTEILUNG VON NOx-REDUZIERENDEN CHEMIKALIEN IN EINEM MEDIUM MIT HOHEM FESTSTOFFGEHALT
AU7359194A (en) * 1993-07-12 1995-02-13 Platinum Plus, Inc. Method for reducing emissions of nox and particulates from a diesel engine
US5404841A (en) * 1993-08-30 1995-04-11 Valentine; James M. Reduction of nitrogen oxides emissions from diesel engines
US5468460A (en) * 1994-01-10 1995-11-21 Nalco Fuel Tech Stabilization of calcium-based slurries for sox reduction by in-furnace injection
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
WO1997036676A1 (en) * 1996-04-02 1997-10-09 Clean Diesel Technologies, Inc. Method and apparatus for reducing harmful emissions from a diesel engine by urea injection scr
US5985222A (en) * 1996-11-01 1999-11-16 Noxtech, Inc. Apparatus and method for reducing NOx from exhaust gases produced by industrial processes
AU5445598A (en) * 1996-11-20 1998-06-10 Clean Diesel Technologies, Inc. Selective catalytic no reduction utilizing urea without catalyst fouling
AU5618598A (en) * 1996-12-20 1998-07-17 Clean Diesel Technologies, Inc. Method and apparatus for reducing harmful emissions from a lean-burn engine by urea injection scr
US6361754B1 (en) 1997-03-27 2002-03-26 Clean Diesel Technologies, Inc. Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction
US5976475A (en) * 1997-04-02 1999-11-02 Clean Diesel Technologies, Inc. Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
JP4195383B2 (ja) * 2001-11-09 2008-12-10 クリーン ディーゼル テクノロジーズ インコーポレーテッド 燃焼源用汚染減少剤の連続的−可変的調節法
US6887284B2 (en) * 2002-07-12 2005-05-03 Dannie B. Hudson Dual homogenization system and process for fuel oil
GB2552040B (en) 2016-12-01 2018-08-01 Univ Loughborough Process for reducing nitrogen oxides

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6912935A (de) * 1968-08-31 1970-03-03
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
US4719092A (en) * 1985-10-04 1988-01-12 Fuel Tech, Inc. Reduction of nitrogen-based pollutants through the use of urea solutions containing oxygenated hydrocarbon solvents
US4756890A (en) * 1986-05-09 1988-07-12 Pyropower Corporation Reduction of NOx in flue gas
US4777024A (en) * 1987-03-06 1988-10-11 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4877590A (en) * 1987-03-06 1989-10-31 Fuel Tech, Inc. Process for nitrogen oxides reduction with minimization of the production of other pollutants
US4780289A (en) * 1987-05-14 1988-10-25 Fuel Tech, Inc. Process for nitrogen oxides reduction and minimization of the production of other pollutants
US4830839A (en) * 1987-02-13 1989-05-16 Fuel Tech, Inc. Ammonia scrubbing
US4803059A (en) * 1987-04-15 1989-02-07 Fuel Tech, Inc. Process for the reduction of nitrogen oxides in an effluent using a hydroxy amino hydrocarbon
US4863704A (en) * 1987-03-06 1989-09-05 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
US4902488A (en) * 1987-05-14 1990-02-20 Fuel Tech, Inc. Process for nitrogen oxides reduction with minimization of the production of other pollutants
WO1989002780A2 (en) * 1987-03-06 1989-04-06 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4851201A (en) * 1987-04-16 1989-07-25 Energy And Environmental Research Corporation Methods of removing NOx and SOx emissions from combustion systems using nitrogenous compounds
ATE122916T1 (de) * 1987-09-23 1995-06-15 Fuel Tech Inc Verfahren zur reduktion von stickoxiden und minimierung der produktiven von anderen verunreinigungen.

Also Published As

Publication number Publication date
HUT62536A (en) 1993-05-28
EP0524953A4 (en) 1993-04-07
US4997631A (en) 1991-03-05
EP0524953B1 (de) 1995-06-21
FI923873A7 (fi) 1992-08-28
EP0524953A1 (de) 1993-02-03
FI923873A0 (fi) 1992-08-28
HU9202840D0 (en) 1992-11-30
DE69110670D1 (de) 1995-07-27
AU638196B2 (en) 1993-06-17
FI923873L (fi) 1992-08-28
AU7485891A (en) 1991-10-10
DE69110670T2 (de) 1996-01-11
WO1991013829A1 (en) 1991-09-19
CA2081379A1 (en) 1991-09-08

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties