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JPS5462167A - Burner exhaust gas treating method - Google Patents

Burner exhaust gas treating method

Info

Publication number
JPS5462167A
JPS5462167A JP12762377A JP12762377A JPS5462167A JP S5462167 A JPS5462167 A JP S5462167A JP 12762377 A JP12762377 A JP 12762377A JP 12762377 A JP12762377 A JP 12762377A JP S5462167 A JPS5462167 A JP S5462167A
Authority
JP
Japan
Prior art keywords
gas
fuel
denitration
exhaust gas
air
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.)
Pending
Application number
JP12762377A
Other languages
Japanese (ja)
Inventor
Keizo Otsuka
Etsuji Kishida
Takeaki Nitta
Shinya Abe
Keitaro Tachibana
Tomihisa Ishikawa
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.)
Hitachi Ltd
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Hitachi 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 Babcock Hitachi KK, Hitachi Ltd filed Critical Babcock Hitachi KK
Priority to JP12762377A priority Critical patent/JPS5462167A/en
Publication of JPS5462167A publication Critical patent/JPS5462167A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Chimneys And Flues (AREA)

Abstract

PURPOSE: To reduce the amt. of fuel required to heat exhaust gas from a sintering machine in removal of NOx in the gas by heating the gas to a predetermined temp. with outlet hot air of a sinterdd ore cooler.
CONSTITUTION: Exhaust gas 5 of 60W150°C exhausted from sintering machine 12 is fed to hot gas mixer 11 through heat exchanger 1 and denitration fan 2 and heated to the denitration temp. of 200W450°C. At this time, as air needed to burn fuel 8 for hot stove 3, outlet air of sintered ore cooler 13 is introduced through dust removing unit 4 and fan 15 in an amt. proportional to the consumption of fuel 8 and fuel 8 is burnt with the air to generate hot air 9. Hot air 9 is mixed in mixer 11 with exhaust gas 5 passed through fan 2 to heat the gas to the denitration temp. NH3 10 is then added to the mixed gas and the gas is fed to denitration tower 4 packed with catalyst. In tower 4 NOx in gas 5 is reacted with the NH3 on the surface of the catalyst to be decomposed into harmless N2 and H2O by reduction. By this method the amt. of fuel used for heating can be rduced by about 25%, resulting in reduction of operational cost
COPYRIGHT: (C)1979,JPO&Japio
JP12762377A 1977-10-26 1977-10-26 Burner exhaust gas treating method Pending JPS5462167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12762377A JPS5462167A (en) 1977-10-26 1977-10-26 Burner exhaust gas treating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12762377A JPS5462167A (en) 1977-10-26 1977-10-26 Burner exhaust gas treating method

Publications (1)

Publication Number Publication Date
JPS5462167A true JPS5462167A (en) 1979-05-18

Family

ID=14964655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12762377A Pending JPS5462167A (en) 1977-10-26 1977-10-26 Burner exhaust gas treating method

Country Status (1)

Country Link
JP (1) JPS5462167A (en)

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