JPS55109436A - Nh3 pouring rate control method - Google Patents
Nh3 pouring rate control methodInfo
- Publication number
- JPS55109436A JPS55109436A JP1765779A JP1765779A JPS55109436A JP S55109436 A JPS55109436 A JP S55109436A JP 1765779 A JP1765779 A JP 1765779A JP 1765779 A JP1765779 A JP 1765779A JP S55109436 A JPS55109436 A JP S55109436A
- Authority
- JP
- Japan
- Prior art keywords
- denitration
- exhaust gas
- suitable amount
- inputted
- poured
- 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
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
PURPOSE: To control the pouring of a suitable amount of ammonia corresponding to load fluctuations by measuring the nitrogen oxide densities at the inlet and outlet of a denitration reactor, in a dry type denitration apparatus for exhaust gas.
CONSTITUTION: The nitrogen oxide contained exhaust gas 2 of fluctuating loads such as waste incinerator exhaust gas is led into a denitration reactor 3, where denitration is accomplished with ammonia as a reducing agent. At this time, NOx densities are measured by using NOx analyzers 9, 10 at the inlet and outlet of the denitration reactor 3. This values are converted to electric signals which are then inputted to an operator 11 to operate denitration efficiency. Based on this denitration efficiency, it is inputted to a NH3 controller 12 and is compared with the preset denitration efficiency and NH3 is poured at a suitable amount into the exhaust gas 2 by operating an NH3 control valve 6. In this way, the NH3 is poured and controlled at a suitable amount corresponding to load fluctuations readily and accurately.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1765779A JPS55109436A (en) | 1979-02-16 | 1979-02-16 | Nh3 pouring rate control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1765779A JPS55109436A (en) | 1979-02-16 | 1979-02-16 | Nh3 pouring rate control method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55109436A true JPS55109436A (en) | 1980-08-22 |
Family
ID=11949916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1765779A Pending JPS55109436A (en) | 1979-02-16 | 1979-02-16 | Nh3 pouring rate control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109436A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159527A (en) * | 1981-03-26 | 1982-10-01 | Babcock Hitachi Kk | System for controlling reductant injecting amount in denitration apparatus |
JP2010094605A (en) * | 2008-10-16 | 2010-04-30 | Mitsubishi Heavy Ind Ltd | Nitrogen oxide treatment apparatus |
-
1979
- 1979-02-16 JP JP1765779A patent/JPS55109436A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57159527A (en) * | 1981-03-26 | 1982-10-01 | Babcock Hitachi Kk | System for controlling reductant injecting amount in denitration apparatus |
JP2010094605A (en) * | 2008-10-16 | 2010-04-30 | Mitsubishi Heavy Ind Ltd | Nitrogen oxide treatment apparatus |
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