CA2140885A1 - Boiler operation with decreased no and waste water discharge - Google Patents

Boiler operation with decreased no and waste water discharge

Info

Publication number
CA2140885A1
CA2140885A1 CA002140885A CA2140885A CA2140885A1 CA 2140885 A1 CA2140885 A1 CA 2140885A1 CA 002140885 A CA002140885 A CA 002140885A CA 2140885 A CA2140885 A CA 2140885A CA 2140885 A1 CA2140885 A1 CA 2140885A1
Authority
CA
Canada
Prior art keywords
nox
hardness
reducing agent
water
process according
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
CA002140885A
Other languages
English (en)
French (fr)
Inventor
Leonard Dubin
Vincent M. Albanese
Roy A. Johnson
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
Individual
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 Individual filed Critical Individual
Publication of CA2140885A1 publication Critical patent/CA2140885A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • F22D1/12—Control devices, e.g. for regulating steam temperature
    • 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
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
CA002140885A 1992-07-24 1993-07-22 Boiler operation with decreased no and waste water discharge Abandoned CA2140885A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US91928192A 1992-07-24 1992-07-24
US07/919,281 1992-07-24

Publications (1)

Publication Number Publication Date
CA2140885A1 true CA2140885A1 (en) 1994-02-03

Family

ID=25441821

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002140885A Abandoned CA2140885A1 (en) 1992-07-24 1993-07-22 Boiler operation with decreased no and waste water discharge

Country Status (5)

Country Link
EP (1) EP0651726A4 (da)
KR (1) KR940005916A (da)
CA (1) CA2140885A1 (da)
TW (1) TW238257B (da)
WO (1) WO1994002410A1 (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077870A (en) 1990-09-21 1992-01-07 Minnesota Mining And Manufacturing Company Mushroom-type hook strip for a mechanical fastener
JP6128171B2 (ja) * 2015-07-09 2017-05-17 栗田工業株式会社 冷却排出水の回収方法及び回収装置
CN110482853B (zh) * 2019-09-17 2021-10-26 济南大学 一种将电镀废水中有毒金属离子固化于钠钙铝硅酸盐玻璃中的方法及所得玻璃

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL121615C (da) * 1958-09-06 1900-01-01
US3303139A (en) * 1962-01-27 1967-02-07 Henkel & Cie Gmbh Aminophosphonic acids and their derivatives as complex formers for metal ions
US3297578A (en) * 1963-07-26 1967-01-10 Monsanto Co Bleaching, sterilizing, disinfecting, and deterging compositions
US3663448A (en) * 1970-09-25 1972-05-16 Calgon Corp Inhibiting scale deposition
US3890228A (en) * 1973-04-13 1975-06-17 Chemed Corp Polyacrylate-polyphosphonic acid treatment in aqueous systems
US4208386A (en) * 1976-03-03 1980-06-17 Electric Power Research Institute, Inc. Urea reduction of NOx in combustion effluents
CA1117395A (en) * 1977-09-09 1982-02-02 Leonard Dubin Scale prevention in industrial cooling waters using phosphonocarboxylic acids and certain acrylic acid polymers
US4303568A (en) * 1979-12-10 1981-12-01 Betz Laboratories, Inc. Corrosion inhibition treatments and method
US4801388A (en) * 1986-03-21 1989-01-31 Nalco Chemical Company Modified acrylamide polymers used as scale inhibitors
US4919821A (en) * 1986-03-21 1990-04-24 Nalco Chemical Company Modified maleic anhydride polymers and the like for use as scale inhibitors
US4904413A (en) * 1986-03-26 1990-02-27 Nalco Chemical Company Cooling water corrosion control method and composition
US4744949A (en) * 1986-03-26 1988-05-17 Nalco Chemical Company Method for preventing corrosion in aqueous systems
US4752443A (en) * 1986-05-09 1988-06-21 Nalco Chemical Company Cooling water corrosion inhibition method
US4923634A (en) * 1986-05-09 1990-05-08 Nalco Chemical Company Cooling water corrosion inhibition method
US4756881A (en) * 1986-05-09 1988-07-12 Nalco Chemical Company Composition of corrosion inhibitors for cooling water systems using chemically modified acrylamide or methacrylamide polymers
US4680124A (en) * 1987-01-08 1987-07-14 Nalco Chemical Company Polyacrylate scale inhibition
US4842834A (en) * 1987-02-02 1989-06-27 Fuel Tech, Inc. Process for reducing the concentration of pollutants in an effluent
US4777024A (en) * 1987-03-06 1988-10-11 Fuel Tech, Inc. Multi-stage process for reducing the concentration of pollutants in an effluent
US4959156A (en) * 1987-07-30 1990-09-25 Olin Corporation Block co-polymers useful as aqueous dispersants
US4818506A (en) * 1988-01-15 1989-04-04 Nalco Chemical Company Gypsum scale inhibitors for flue gas desulfurization systems
US4834955A (en) * 1988-04-26 1989-05-30 Nalco Chemical Company Chemical formulation and combined process for inhibiting deposition and corrosion in cooling water and gypsum scaling in flue gas desulfurization scrubber systems
US5441713A (en) * 1988-04-29 1995-08-15 Nalco Fuel Tech Hardness suppression in urea solutions
PT90417B (pt) * 1988-04-29 1994-09-30 Fuel Tech Inc Processo para a preparacao de composicoes para introducao num ambiente de alta temperatura para reducao do teor de oxidos de azoto compreendendo pelo menos um composto hidrocarbonado oxigenado
US4985218A (en) * 1989-03-03 1991-01-15 Fuel Tech, Inc. Process and injector for reducing the concentration of pollutants in an effluent

Also Published As

Publication number Publication date
EP0651726A1 (en) 1995-05-10
TW238257B (da) 1995-01-11
WO1994002410A1 (en) 1994-02-03
EP0651726A4 (en) 1995-08-09
KR940005916A (ko) 1994-03-22

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Legal Events

Date Code Title Description
FZDE Dead