JPS5451970A - Denitration method from gas containing sulphur oxide and nitrogen oxide - Google Patents
Denitration method from gas containing sulphur oxide and nitrogen oxideInfo
- Publication number
- JPS5451970A JPS5451970A JP11830877A JP11830877A JPS5451970A JP S5451970 A JPS5451970 A JP S5451970A JP 11830877 A JP11830877 A JP 11830877A JP 11830877 A JP11830877 A JP 11830877A JP S5451970 A JPS5451970 A JP S5451970A
- Authority
- JP
- Japan
- Prior art keywords
- nox
- catalyst layer
- gas containing
- oxide
- temp
- 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
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To prolong life expectancy, by preventing the corrosion of an apparatus by making the temp of a catalyst layer to be the precipitation temp of (Acidic) (NH4)2SO4 and by segregating SOx and NOx in the catalyst layer when NOx is catalytically reduced by using HN3 to gas containing SOx and NOx.
CONSTITUTION: When NOx is catalytically reduced by adding NH3 to gas containing SOx and NOx as a reducing agent, the temp of a catalyst layer is made ot be not more than approx. 300°C -preferably, not more than approx. 280°C. Consequently, (Acidic) (NH4)2SO4 is segregation attached into the catalyst layer, thus preventing the precipitation of these salt after the catalyst layer. This method can operated a denitration device efficiently. and stably for a long term
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11830877A JPS5451970A (en) | 1977-09-30 | 1977-09-30 | Denitration method from gas containing sulphur oxide and nitrogen oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11830877A JPS5451970A (en) | 1977-09-30 | 1977-09-30 | Denitration method from gas containing sulphur oxide and nitrogen oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5451970A true JPS5451970A (en) | 1979-04-24 |
Family
ID=14733459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11830877A Pending JPS5451970A (en) | 1977-09-30 | 1977-09-30 | Denitration method from gas containing sulphur oxide and nitrogen oxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5451970A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5486474A (en) * | 1977-12-23 | 1979-07-10 | Hitachi Ltd | Treating method for exhaust gas containing nitrogen oxides |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52106362A (en) * | 1976-03-04 | 1977-09-06 | Hitachi Ltd | Decomposition of nitrogen oxides by catalytic reduction |
JPS5343669A (en) * | 1976-10-04 | 1978-04-19 | Babcock Hitachi Kk | Dry type denitrating method in low temperature |
JPS53117672A (en) * | 1977-03-24 | 1978-10-14 | Babcock Hitachi Kk | Treating method for exhaust gas |
-
1977
- 1977-09-30 JP JP11830877A patent/JPS5451970A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52106362A (en) * | 1976-03-04 | 1977-09-06 | Hitachi Ltd | Decomposition of nitrogen oxides by catalytic reduction |
JPS5343669A (en) * | 1976-10-04 | 1978-04-19 | Babcock Hitachi Kk | Dry type denitrating method in low temperature |
JPS53117672A (en) * | 1977-03-24 | 1978-10-14 | Babcock Hitachi Kk | Treating method for exhaust gas |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5486474A (en) * | 1977-12-23 | 1979-07-10 | Hitachi Ltd | Treating method for exhaust gas containing nitrogen oxides |
JPS5817644B2 (en) * | 1977-12-23 | 1983-04-08 | 株式会社日立製作所 | Treatment method for exhaust gas containing nitrogen oxides |
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