JPS5570328A - Operation of denitrifier - Google Patents

Operation of denitrifier

Info

Publication number
JPS5570328A
JPS5570328A JP14353478A JP14353478A JPS5570328A JP S5570328 A JPS5570328 A JP S5570328A JP 14353478 A JP14353478 A JP 14353478A JP 14353478 A JP14353478 A JP 14353478A JP S5570328 A JPS5570328 A JP S5570328A
Authority
JP
Japan
Prior art keywords
sent
controller box
signal
waste gas
residual
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
JP14353478A
Other languages
Japanese (ja)
Inventor
Takashi Akiyama
Teruo Hisamura
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.)
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 JP14353478A priority Critical patent/JPS5570328A/en
Publication of JPS5570328A publication Critical patent/JPS5570328A/en
Pending legal-status Critical Current

Links

Landscapes

  • Chimneys And Flues (AREA)
  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To save the consumption of fuel for frontal burner and also of NH3 by detecting and controlling as signals the temperature of the upflow waste gas, NOX present in the afterflow waste gas, and the residual NH3 in a catalytic reactor.
CONSTITUTION: A variation in load is sent to the controller 15 as the signal of its flow rate from the vapor flow meter 14, and also the flow rate of waste gas of the boiler 1 is sent to the controller box 15 as the signal of its value from the gas flow meter 16. The value of residual NH3 in the afterflow waste gas in the catalytic reactor 9 is converted into a signal through the NH3 content measuring device 17 by the signal converter 17a and then sent to the controller box 15, and also the value of residual NOX is likewise converted into a signal through the NOX measuring device 18 by the signal converter 18 a and then sent to the controller box 15. The signals sent to the controller box 15 are compared with control data in the controller box 15 capable of memorizing fixed curves, and necessary NH3 amounts and frontal burner fuel amounts as signals are sent from the controller box 15 to the controlling valve 19 for fuel and the controlling valve 20 provided to the NH3 supply pipe to control the opening degree of these valves.
COPYRIGHT: (C)1980,JPO&Japio
JP14353478A 1978-11-22 1978-11-22 Operation of denitrifier Pending JPS5570328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14353478A JPS5570328A (en) 1978-11-22 1978-11-22 Operation of denitrifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14353478A JPS5570328A (en) 1978-11-22 1978-11-22 Operation of denitrifier

Publications (1)

Publication Number Publication Date
JPS5570328A true JPS5570328A (en) 1980-05-27

Family

ID=15340973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14353478A Pending JPS5570328A (en) 1978-11-22 1978-11-22 Operation of denitrifier

Country Status (1)

Country Link
JP (1) JPS5570328A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189917A2 (en) * 1985-01-30 1986-08-06 Babcock-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
US5078973A (en) * 1985-01-30 1992-01-07 Babcoco-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
GB2249973A (en) * 1989-03-27 1992-05-27 Foster Wheeler Energy Applic Catalytic denitrification control process and system for combustion flue gases
WO2012120417A1 (en) * 2011-03-04 2012-09-13 Foster Wheeler North America Corp. Method of and apparatus for selective catalytic nox reduction in a power boiler
CN111773896A (en) * 2020-06-28 2020-10-16 苏州西热节能环保技术有限公司 SNCR denitration accurate ammonia injection control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528417A (en) * 1978-08-17 1980-02-29 Jgc Corp Continuous operation method of exhaust gas denitration process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5528417A (en) * 1978-08-17 1980-02-29 Jgc Corp Continuous operation method of exhaust gas denitration process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189917A2 (en) * 1985-01-30 1986-08-06 Babcock-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
US5078973A (en) * 1985-01-30 1992-01-07 Babcoco-Hitachi Kabushiki Kaisha Apparatus for treating flue gas
GB2249973A (en) * 1989-03-27 1992-05-27 Foster Wheeler Energy Applic Catalytic denitrification control process and system for combustion flue gases
GB2249973B (en) * 1989-03-27 1995-04-26 Foster Wheeler Energy Applic Catalytic denitrification control process and system for combustion flue gases
WO2012120417A1 (en) * 2011-03-04 2012-09-13 Foster Wheeler North America Corp. Method of and apparatus for selective catalytic nox reduction in a power boiler
CN103443405A (en) * 2011-03-04 2013-12-11 福斯特惠勒北美有限公司 Method of and apparatus for selective catalytic NOx reduction in a power boiler
CN111773896A (en) * 2020-06-28 2020-10-16 苏州西热节能环保技术有限公司 SNCR denitration accurate ammonia injection control system

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