FI892466A - FLERSTEGSPROCESS FOER REDUCERING AV FOERORENINGAR I UTSLAEPP. - Google Patents

FLERSTEGSPROCESS FOER REDUCERING AV FOERORENINGAR I UTSLAEPP. Download PDF

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Publication number
FI892466A
FI892466A FI892466A FI892466A FI892466A FI 892466 A FI892466 A FI 892466A FI 892466 A FI892466 A FI 892466A FI 892466 A FI892466 A FI 892466A FI 892466 A FI892466 A FI 892466A
Authority
FI
Finland
Prior art keywords
utslaepp
flerstegsprocess
foeroreningar
concentration
reduce
Prior art date
Application number
FI892466A
Other languages
Finnish (fi)
Other versions
FI88587C (en
FI892466A0 (en
FI88587B (en
Inventor
William Robert Epperly
Jeremy Deeble Peter-Hoblyn
Jr George F Shulof
James Christopher Sullivan
Barry Normand Sprague
Leary John Henry O'
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
Priority claimed from US07/022,716 external-priority patent/US4777024A/en
Priority claimed from US07/100,128 external-priority patent/US4863705A/en
Priority claimed from US07/108,779 external-priority patent/US4844878A/en
Priority claimed from US07/132,801 external-priority patent/US4830839A/en
Priority claimed from US07/155,864 external-priority patent/US4877590A/en
Priority claimed from US07/207,292 external-priority patent/US4863704A/en
Priority claimed from US07/207,382 external-priority patent/US4902488A/en
Publication of FI892466A0 publication Critical patent/FI892466A0/en
Publication of FI892466A publication Critical patent/FI892466A/en
Application filed by Fuel Tech Inc filed Critical Fuel Tech Inc
Publication of FI88587B publication Critical patent/FI88587B/en
Application granted granted Critical
Publication of FI88587C publication Critical patent/FI88587C/en

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
    • B01D53/60—Simultaneously removing sulfur oxides and 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
    • B01D53/46—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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00054—Controlling or regulating the heat exchange system
    • B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
    • B01J2219/00058—Temperature measurement
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Treating Waste Gases (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

A process is presented for reducing the concentration of impurities in a flue gas from the burning of carboniferous fuel. The process relates to the addition of a first treatment reagent in the waste gas at a first temperature range in order to reduce the concentration of a first impurity and the addition of a second treatment reagent in the waste gas at a second temperature range in order to reduce the concentration of either the first or a second impurity, the first and the second treatment reagent being added under effective conditions to reduce the pollution index of the flue gas.
FI892466A 1987-03-06 1989-05-22 Foerfarande Foer reducering av halalt kvaeveoxider i avgas, som bildas vid foerbraenning av ett kolhaltigt braensle FI88587C (en)

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
US07/022,716 US4777024A (en) 1987-03-06 1987-03-06 Multi-stage process for reducing the concentration of pollutants in an effluent
US2271687 1987-03-06
US07/100,128 US4863705A (en) 1987-09-23 1987-09-23 Process for the reduction of nitrogen oxides in an effluent
US10012887 1987-09-23
US07/108,779 US4844878A (en) 1985-10-04 1987-10-14 Process for the reduction of nitrogen oxides in an effluent
US10877987 1987-10-14
US07/132,801 US4830839A (en) 1987-02-13 1987-12-14 Ammonia scrubbing
US13280187 1987-12-14
US15586488 1988-02-29
US07/155,864 US4877590A (en) 1987-03-06 1988-02-29 Process for nitrogen oxides reduction with minimization of the production of other pollutants
US20738288 1988-06-15
US07/207,292 US4863704A (en) 1987-03-06 1988-06-15 Multi-stage process for reducing the concentration of pollutants in an effluent using an ammonium salt
US07/207,382 US4902488A (en) 1987-05-14 1988-06-15 Process for nitrogen oxides reduction with minimization of the production of other pollutants
US20729288 1988-06-15
US8802748 1988-08-12
PCT/US1988/002748 WO1989002780A2 (en) 1987-03-06 1988-08-12 Multi-stage process for reducing the concentration of pollutants in an effluent

Publications (4)

Publication Number Publication Date
FI892466A true FI892466A (en) 1989-05-22
FI892466A0 FI892466A0 (en) 1989-05-22
FI88587B FI88587B (en) 1993-02-26
FI88587C FI88587C (en) 1993-06-10

Family

ID=27575737

Family Applications (1)

Application Number Title Priority Date Filing Date
FI892466A FI88587C (en) 1987-03-06 1989-05-22 Foerfarande Foer reducering av halalt kvaeveoxider i avgas, som bildas vid foerbraenning av ett kolhaltigt braensle

Country Status (6)

Country Link
AT (1) ATE88372T1 (en)
AU (1) AU614094B2 (en)
DE (1) DE3880484T2 (en)
DK (1) DK250389A (en)
FI (1) FI88587C (en)
WO (1) WO1989002780A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0497762A4 (en) * 1987-03-06 1993-04-07 Fuel Tech, Inc. System for the efficient reduction of nitrogen oxides in an effluent
EP0432166A1 (en) * 1989-07-04 1991-06-19 Fuel Tech Europe Limited Lance-type injection apparatus for introducing chemical agents into flue gases
US4997631A (en) * 1990-03-07 1991-03-05 Fuel Tech, Inc. Process for reducing nitrogen oxides without generating nitrous oxide
US5043150A (en) * 1990-04-17 1991-08-27 A. Ahlstrom Corporation Reducing emissions of N2 O when burning nitrogen containing fuels in fluidized bed reactors
GB2246121B (en) * 1990-07-13 1995-03-08 Hitachi Shipbuilding Eng Co Process for simultaneously effecting desulfurization and denitration within furnace
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
IT1250740B (en) * 1991-08-02 1995-04-21 Eniricerche Spa REDUCTION OF POLLUTANTS IN THE COMBUSTION EFFLUENT
US5498707A (en) * 1993-04-22 1996-03-12 Gatlin; Larry W. Hydrogen sulfide converter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565575A (en) * 1968-05-22 1971-02-23 Chemical Construction Corp Removal of nitrogen oxides from a gas stream
CA1097487A (en) * 1976-04-20 1981-03-17 David W. Turner Method and apparatus for reducing no.sub.x emission to the atmosphere
US4853193A (en) * 1986-01-10 1989-08-01 Exxon Research And Engineering Company Process for removing NOx and SOx from a gaseous mixture

Also Published As

Publication number Publication date
WO1989002780A2 (en) 1989-04-06
DE3880484D1 (en) 1993-05-27
AU614094B2 (en) 1991-08-22
DK250389D0 (en) 1989-05-23
FI88587C (en) 1993-06-10
AU2308488A (en) 1989-04-18
DK250389A (en) 1989-05-23
ATE88372T1 (en) 1993-05-15
DE3880484T2 (en) 1993-08-05
FI892466A0 (en) 1989-05-22
WO1989002780A3 (en) 1989-05-05
FI88587B (en) 1993-02-26

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: FUEL TECH, INC.