JPS5633025A - Control method for injection quantity of ammonia - Google Patents

Control method for injection quantity of ammonia

Info

Publication number
JPS5633025A
JPS5633025A JP10933679A JP10933679A JPS5633025A JP S5633025 A JPS5633025 A JP S5633025A JP 10933679 A JP10933679 A JP 10933679A JP 10933679 A JP10933679 A JP 10933679A JP S5633025 A JPS5633025 A JP S5633025A
Authority
JP
Japan
Prior art keywords
exhaust gas
ammonia
concentration
signal
transmission equipment
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
JP10933679A
Other languages
Japanese (ja)
Inventor
Minoru Izutsu
Hidenori Arakawa
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 JP10933679A priority Critical patent/JPS5633025A/en
Publication of JPS5633025A publication Critical patent/JPS5633025A/en
Pending legal-status Critical Current

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  • Treating Waste Gases (AREA)

Abstract

PURPOSE: To control the prescribed quantity of injecting ammonia, by finding total quantity of NOx in exhaust gas from the flowing quantity of gas and NOx concentration in said gas at the ammonia reduction denitration method of exhaust gas.
CONSTITUTION: Pressure difference of optional two points between the fire furnace 2 and the coal economizer 3, is measured and measure value is sent to the operator 15 from the pressure difference transmission equipment 16 at the process of denitrating NOx in exhaust gas by the reduction of ammonia. And, total quantity of NOx in the exhaust gas is calculated by the operator 14 from the signal of flowing quantity of the economizer inlet exhaust gas and signal of concentration of NOx from the NOx concentration transmission equipment 13. Moreover, a fixed supply quantity of NH3 is found by the controller 12 from the signal of total quantity of NOx and that of flowing quantity of NH3 from the NH3 flowing quantity transmission equipment 11 and then, an opening degree of the NH3 flowing quantity control valve 9 is adjusted. Thus, a highly reliable denitration is carried out.
COPYRIGHT: (C)1981,JPO&Japio
JP10933679A 1979-08-28 1979-08-28 Control method for injection quantity of ammonia Pending JPS5633025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10933679A JPS5633025A (en) 1979-08-28 1979-08-28 Control method for injection quantity of ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10933679A JPS5633025A (en) 1979-08-28 1979-08-28 Control method for injection quantity of ammonia

Publications (1)

Publication Number Publication Date
JPS5633025A true JPS5633025A (en) 1981-04-03

Family

ID=14507637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10933679A Pending JPS5633025A (en) 1979-08-28 1979-08-28 Control method for injection quantity of ammonia

Country Status (1)

Country Link
JP (1) JPS5633025A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473537A (en) * 1982-12-27 1984-09-25 General Electric Company Ammonia control system for NOx emission control for gas turbine exhaust
US4473536A (en) * 1982-12-27 1984-09-25 General Electric Company Catalytic pollution control system for gas turbine exhaust
CN1041172C (en) * 1991-10-14 1998-12-16 株式会社茬原制作所 Exhaust gas denitration method and apparatus therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473537A (en) * 1982-12-27 1984-09-25 General Electric Company Ammonia control system for NOx emission control for gas turbine exhaust
US4473536A (en) * 1982-12-27 1984-09-25 General Electric Company Catalytic pollution control system for gas turbine exhaust
CN1041172C (en) * 1991-10-14 1998-12-16 株式会社茬原制作所 Exhaust gas denitration method and apparatus therefor

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