JPS57403A - Reducing method of nitrogen oxides in exhaust gas and its device - Google Patents

Reducing method of nitrogen oxides in exhaust gas and its device

Info

Publication number
JPS57403A
JPS57403A JP7368880A JP7368880A JPS57403A JP S57403 A JPS57403 A JP S57403A JP 7368880 A JP7368880 A JP 7368880A JP 7368880 A JP7368880 A JP 7368880A JP S57403 A JPS57403 A JP S57403A
Authority
JP
Japan
Prior art keywords
exhaust gas
precombustion chamber
combustion zone
nitrogen oxides
concentration
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
JP7368880A
Other languages
Japanese (ja)
Other versions
JPS6362646B2 (en
Inventor
Shigeki Morita
Iwao Akiyama
Kunio Okiura
Akira Baba
Kijiro Arikawa
Shoichi Masuko
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 Power Ltd
Original Assignee
Babcock Hitachi KK
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 Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP7368880A priority Critical patent/JPS57403A/en
Publication of JPS57403A publication Critical patent/JPS57403A/en
Publication of JPS6362646B2 publication Critical patent/JPS6362646B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/16—Controlling secondary air

Landscapes

  • Combustion Of Fluid Fuel (AREA)
  • Treating Waste Gases (AREA)
  • Regulation And Control Of Combustion (AREA)

Abstract

PURPOSE: To reduce NOx in the exhaust gas from a combustion equipment without using reducing agent by a construction wherein the exhaust gas from a precombustion chamber is supplied near the complete combustion zone.
CONSTITUTION: On the furnace wall 100 of a furnace 10 are provided a plurality of stages of afterburning air charging ports 40 connecting through piping 41 to an exhaust gas duct 11a of the precombustion chamber 11 to supply the exhaust gas from the precombustion chamber 11 near the complete combustion zone. According to the construction described above, by the addition of the precombustion chamber exhaust gas with proper O2 concentration to the exhaust gas under proper ambient O2 concentration, the conversion of nitrogen compound such as HCN and the like remaining within the wake flow in a fuel-rich combustion zone to NOx is prevented, enabling to reduce NOx without using special reducing agent.
COPYRIGHT: (C)1982,JPO&Japio
JP7368880A 1980-06-03 1980-06-03 Reducing method of nitrogen oxides in exhaust gas and its device Granted JPS57403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7368880A JPS57403A (en) 1980-06-03 1980-06-03 Reducing method of nitrogen oxides in exhaust gas and its device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7368880A JPS57403A (en) 1980-06-03 1980-06-03 Reducing method of nitrogen oxides in exhaust gas and its device

Publications (2)

Publication Number Publication Date
JPS57403A true JPS57403A (en) 1982-01-05
JPS6362646B2 JPS6362646B2 (en) 1988-12-05

Family

ID=13525398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7368880A Granted JPS57403A (en) 1980-06-03 1980-06-03 Reducing method of nitrogen oxides in exhaust gas and its device

Country Status (1)

Country Link
JP (1) JPS57403A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942408U (en) * 1982-09-11 1984-03-19 バブコツク日立株式会社 boiler equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634331A1 (en) * 1988-07-12 1990-01-19 Rockwell Cim MOTOR-REDUCER ASSEMBLY WITH PROGRAMMER, PARTICULARLY FOR THE CONTROL OF A SUNROOF OF A MOTOR VEHICLE

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5691108A (en) * 1979-12-21 1981-07-23 Babcock Hitachi Kk Combustion method capable of reducing nox and uncombusted substance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5691108A (en) * 1979-12-21 1981-07-23 Babcock Hitachi Kk Combustion method capable of reducing nox and uncombusted substance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5942408U (en) * 1982-09-11 1984-03-19 バブコツク日立株式会社 boiler equipment

Also Published As

Publication number Publication date
JPS6362646B2 (en) 1988-12-05

Similar Documents

Publication Publication Date Title
ES8301279A1 (en) Supersonic injection of oxygen in cupolas.
JPS57403A (en) Reducing method of nitrogen oxides in exhaust gas and its device
JPS51137670A (en) Method for decreasing nitrogen oxides in exhaust gas
JPS53143807A (en) Internal combustion engine with precombustion chamber
JPS54159743A (en) Powder fuel combustion burner
JPS5212670A (en) Process of reducing nitrogen oxides in exhaust combustion gases
JPS52118634A (en) Preparation of low oxygen combustion for gas fuel
JPS52131226A (en) Combustion method at nox generation control fuel furnace
JPS5397638A (en) Combustion method for reducing nitrogen oxide
JPS52135871A (en) Method and apparatus for decreasing nox in combustion exhaust gas
JPS5422007A (en) Internal combustion engine with precombustion chamber
JPS53110128A (en) Combusting device
JPS56130513A (en) Combustion with low nox
JPS543623A (en) Running control equipment of internal combustion engine
JPS53439A (en) Fuel combustion method
JPS543926A (en) Flow layer combustion
JPS548215A (en) Reduction of concentration of nitrogen oxide in combustion gas of gas turbine
JPS5423228A (en) Outer located type combustion device
JPS51135872A (en) Method, technique and device for reducing nitrogen oxides discharged after combustion of fuel, by combined use of drawn oxygen and air
JPS51141913A (en) Gas turbine equipment
JPS52101321A (en) Control equipment of internal combustion engine
JPS5750530A (en) Method for denitration of waste combustion gas
JPS52101664A (en) Treatment of nitrogen oxides of high concentration by combustion
JPS524911A (en) Internal combustion engine with auxiliary chamber
JPS52101663A (en) Treatment of nitrogen oxides of high concentration