JPS5488673A - Fluidized combustion method for combusting nitrogen containing combustible waste - Google Patents

Fluidized combustion method for combusting nitrogen containing combustible waste

Info

Publication number
JPS5488673A
JPS5488673A JP14191577A JP14191577A JPS5488673A JP S5488673 A JPS5488673 A JP S5488673A JP 14191577 A JP14191577 A JP 14191577A JP 14191577 A JP14191577 A JP 14191577A JP S5488673 A JPS5488673 A JP S5488673A
Authority
JP
Japan
Prior art keywords
gas
combusting
waste
nox
amount
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
JP14191577A
Other languages
Japanese (ja)
Other versions
JPS5832285B2 (en
Inventor
Yuya Yamahata
Kazuhiko Oi
Katsunori Takahashi
Shinseki Itaya
Tamotsu Takebayashi
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding Co 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Priority to JP52141915A priority Critical patent/JPS5832285B2/en
Publication of JPS5488673A publication Critical patent/JPS5488673A/en
Publication of JPS5832285B2 publication Critical patent/JPS5832285B2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed

Abstract

PURPOSE:To provide a method of combusting nitrogen containing combustible waste, comprising the steps of combusting nitrogen containing waste with introduction of less than a certain amount of primary air to a fluidized bed section, reducing NOx in the gas formed by the combustion of the waste with NH3 also contained in the formed gas, then introducing secondary air for combusting the uncombusted matters, thus reducing formation of NOx in the combustion gas, and converting NOx into innoxious N2. CONSTITUTION:Primary air for combusting waste and auxiliary fuel such as heavy oil are supplied respectively from lines 7 and 8, whereas nitrogen containing combustible waste is supplied from line 9. Fluidizing medium such as sand is used in bed portion 3. Amount of primary air introduced into the furnace is designed to be less than the amount of air containing theoretical amount of oxygen necessary for combusting the waste and auxiliary fuel. Uncombusted matter containing gas, formed by the combustion at the bed portion 3, is introduced at 650-850 deg.C into reducing section 5, where NOx in the gas is reduced to N2 through reaction with NH3, one of uncombusted matters contained in the gas, so that amount of NOx can be reduced considerably. The time requied for the gas to pass through reducing section 5 is designed to be greater than 1 second. Then, secondary air is supplied to oxidizing section 6 from lines 10A, 10B and 10C to combust the uncombusted matters completely.
JP52141915A 1977-11-25 1977-11-25 Fluid combustion method for nitrogen-containing combustibles Expired JPS5832285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52141915A JPS5832285B2 (en) 1977-11-25 1977-11-25 Fluid combustion method for nitrogen-containing combustibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52141915A JPS5832285B2 (en) 1977-11-25 1977-11-25 Fluid combustion method for nitrogen-containing combustibles

Publications (2)

Publication Number Publication Date
JPS5488673A true JPS5488673A (en) 1979-07-13
JPS5832285B2 JPS5832285B2 (en) 1983-07-12

Family

ID=15303115

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52141915A Expired JPS5832285B2 (en) 1977-11-25 1977-11-25 Fluid combustion method for nitrogen-containing combustibles

Country Status (1)

Country Link
JP (1) JPS5832285B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54105867A (en) * 1978-02-06 1979-08-20 Tsukishima Kikai Co Method of incinerating sludge*etc* and its device
US5325796A (en) * 1992-05-22 1994-07-05 Foster Wheeler Energy Corporation Process for decreasing N2 O emissions from a fluidized bed reactor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1316528C (en) * 1988-01-11 1993-04-20 Paul H. Ballentine Suction enhancement for a wavy plate-fin

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5080674A (en) * 1973-11-21 1975-06-30
JPS5389281A (en) * 1977-01-14 1978-08-05 Ishigaki Mech Ind Control of nox emission in fluidized bed incinerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5080674A (en) * 1973-11-21 1975-06-30
JPS5389281A (en) * 1977-01-14 1978-08-05 Ishigaki Mech Ind Control of nox emission in fluidized bed incinerator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54105867A (en) * 1978-02-06 1979-08-20 Tsukishima Kikai Co Method of incinerating sludge*etc* and its device
JPS6056965B2 (en) * 1978-02-06 1985-12-12 月島機械株式会社 Incineration method and equipment for sludge, etc.
US5325796A (en) * 1992-05-22 1994-07-05 Foster Wheeler Energy Corporation Process for decreasing N2 O emissions from a fluidized bed reactor

Also Published As

Publication number Publication date
JPS5832285B2 (en) 1983-07-12

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