JPS5486823A - Combustion with reduction of nitrogen oxide - Google Patents

Combustion with reduction of nitrogen oxide

Info

Publication number
JPS5486823A
JPS5486823A JP15437477A JP15437477A JPS5486823A JP S5486823 A JPS5486823 A JP S5486823A JP 15437477 A JP15437477 A JP 15437477A JP 15437477 A JP15437477 A JP 15437477A JP S5486823 A JPS5486823 A JP S5486823A
Authority
JP
Japan
Prior art keywords
combustion gas
combustion
nox
oxygen
passage
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.)
Granted
Application number
JP15437477A
Other languages
Japanese (ja)
Other versions
JPS624606B2 (en
Inventor
Nobuaki Murakami
Kikuo Tokunaga
Yutaka Yamashita
Masayasu Sakai
Yasuo Takahashi
Minoru Hashiguchi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP15437477A priority Critical patent/JPS5486823A/en
Priority to NLAANVRAGE7812304,A priority patent/NL187768C/en
Priority to CA318,435A priority patent/CA1111338A/en
Priority to GB7849469A priority patent/GB2011051B/en
Priority to DE19782855766 priority patent/DE2855766A1/en
Priority to FR7836170A priority patent/FR2412786B1/en
Publication of JPS5486823A publication Critical patent/JPS5486823A/en
Publication of JPS624606B2 publication Critical patent/JPS624606B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

PURPOSE: To decrease NOx, by incompletely burning fuel and adding such gas as to the combustion gas to supply about 0.3% or less of oxygen to the combustion gas and thereafter supplying air to burn the unburned substances.
CONSTITUTION: The fuel is injected into a combustion furnace 1 through a pipe 3 and a burner 4 and burned by air A. A part of the combustion gas in a flue 6 is sucked through a pipe 8 by a recycling fan 7 and distributed to passages Ga1WGa3. The combustion gas in the passage Ga1 is blown to the bottom 1a of the furnace so that the combustion gas is diffused into the combustion flame C to lower the combustion temperature to decrease the Nox. The combustion gas in the passage Ga2 is mixed into the air A so that the concentration of the oxygen is reduced to lower the combustion temperature to decrease the Nox. The combustion gas in the passage Ga3 is blown into the incomplete combustion gas produced in a main burning portion to supply 0.3% or less of oxygen to this combustion gas to completely burn it.
COPYRIGHT: (C)1979,JPO&Japio
JP15437477A 1977-12-23 1977-12-23 Combustion with reduction of nitrogen oxide Granted JPS5486823A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP15437477A JPS5486823A (en) 1977-12-23 1977-12-23 Combustion with reduction of nitrogen oxide
NLAANVRAGE7812304,A NL187768C (en) 1977-12-23 1978-12-19 COMBUSTION PROCESS.
CA318,435A CA1111338A (en) 1977-12-23 1978-12-21 Combustion process with reduced nitrogen oxides exhaust
GB7849469A GB2011051B (en) 1977-12-23 1978-12-21 Combustion process with reduced nitrogen oxides exhausts
DE19782855766 DE2855766A1 (en) 1977-12-23 1978-12-22 COMBUSTION PROCESS FOR GENERATING EXHAUST GAS WITH REDUCED NITROGEN OXIDE CONTENT
FR7836170A FR2412786B1 (en) 1977-12-23 1978-12-22 COMBUSTION PROCESS WITH REDUCTION OF THE QUANTITY OF NITROGEN OXIDES IN THE EXHAUST GASES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15437477A JPS5486823A (en) 1977-12-23 1977-12-23 Combustion with reduction of nitrogen oxide

Publications (2)

Publication Number Publication Date
JPS5486823A true JPS5486823A (en) 1979-07-10
JPS624606B2 JPS624606B2 (en) 1987-01-31

Family

ID=15582751

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15437477A Granted JPS5486823A (en) 1977-12-23 1977-12-23 Combustion with reduction of nitrogen oxide

Country Status (6)

Country Link
JP (1) JPS5486823A (en)
CA (1) CA1111338A (en)
DE (1) DE2855766A1 (en)
FR (1) FR2412786B1 (en)
GB (1) GB2011051B (en)
NL (1) NL187768C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193005A (en) * 1982-05-07 1983-11-10 Hitachi Ltd Combustion furnace for pulverized coal
JPS5949407A (en) * 1982-09-13 1984-03-22 Babcock Hitachi Kk Burner

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2076135B (en) * 1980-04-22 1984-04-18 Mitsubishi Heavy Ind Ltd Pulverized fuel firing apparatus
DE3324411A1 (en) * 1983-07-06 1985-01-24 Steag Ag, 4300 Essen Process for the combustion of pulverulent fuel and steam generator for carrying out the process
DE3527697C2 (en) * 1985-08-02 1994-08-04 Babcock Energie Umwelt Process for burning coal
DE3643863A1 (en) * 1986-12-22 1988-06-30 Hoelter Heinz Measures to reduce NOx by staged flue-gas recirculation in furnaces
DE3805189A1 (en) * 1988-02-19 1989-08-31 Erwin Schulze Method for reducing the solids content of a coal dust flue gas stream in coal dust furnaces, in which the coal dust flue gas stream is fed to a plurality of feed ducts having an end horizontal bend, which feed ducts open out into the combustion chamber
CH684960A5 (en) * 1991-12-05 1995-02-15 Asea Brown Boveri A process for process heat generation.
DE4419193C2 (en) * 1994-06-01 1997-03-20 Gurudas Dr Samant Process and device for the combustion, in particular afterburning of gases and for the complete decomposition of pollutants and for the production of exhaust gas with reduced NO¶x¶ content
US5707596A (en) * 1995-11-08 1998-01-13 Process Combustion Corporation Method to minimize chemically bound nox in a combustion process
US6200128B1 (en) * 1997-06-09 2001-03-13 Praxair Technology, Inc. Method and apparatus for recovering sensible heat from a hot exhaust gas

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1274637A (en) * 1969-03-27 1972-05-17 Zink Co John Process for disposal of oxides of nitrogen
FR2105156A1 (en) * 1970-09-28 1972-04-28 Costin Dimitri
US3781162A (en) * 1972-03-24 1973-12-25 Babcock & Wilcox Co Reducing nox formation by combustion
JPS5646045B2 (en) * 1972-05-12 1981-10-30
US3787168A (en) * 1972-08-23 1974-01-22 Trw Inc Burner assembly for providing reduced emission of air pollutant
US3880570A (en) * 1973-09-04 1975-04-29 Babcock & Wilcox Co Method and apparatus for reducing nitric in combustion furnaces
US3958915A (en) * 1974-02-15 1976-05-25 The Toyo Rubber Industry Co., Ltd. Method of burning emulsion oils
FR2291454A1 (en) * 1974-11-14 1976-06-11 Bouteleux Rene Boiler with burner fed with air by suction - with total combustion and means of purifying and recycling gases
US4023921A (en) * 1975-11-24 1977-05-17 Electric Power Research Institute Oil burner for NOx emission control
US4135874A (en) * 1976-03-31 1979-01-23 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Two stage combustion furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193005A (en) * 1982-05-07 1983-11-10 Hitachi Ltd Combustion furnace for pulverized coal
JPS5949407A (en) * 1982-09-13 1984-03-22 Babcock Hitachi Kk Burner

Also Published As

Publication number Publication date
NL187768B (en) 1991-08-01
NL7812304A (en) 1979-06-26
NL187768C (en) 1992-01-02
FR2412786A1 (en) 1979-07-20
GB2011051A (en) 1979-07-04
CA1111338A (en) 1981-10-27
DE2855766C2 (en) 1987-12-23
FR2412786B1 (en) 1985-07-12
JPS624606B2 (en) 1987-01-31
GB2011051B (en) 1982-03-03
DE2855766A1 (en) 1979-06-28

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