JPS5615843A - Regeneration of denitrification catalyst - Google Patents
Regeneration of denitrification catalystInfo
- Publication number
- JPS5615843A JPS5615843A JP9108479A JP9108479A JPS5615843A JP S5615843 A JPS5615843 A JP S5615843A JP 9108479 A JP9108479 A JP 9108479A JP 9108479 A JP9108479 A JP 9108479A JP S5615843 A JPS5615843 A JP S5615843A
- Authority
- JP
- Japan
- Prior art keywords
- denitrification
- catalyst
- air
- desulfurization
- heated
- 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.)
- Granted
Links
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To treat generated SOx effectively by a mthod in which newly introduced air is heated in the furnaces of both desulfurization apparatus and denitrification apparatus, wherein the catalyst poisoned by sulfur is left behind, and then the heated air is circulated, together with generated gas, to the desulfurization and denitrification apparatus.
CONSTITUTION: Without taking denitrification catalyst 12 poisoned by sulfur for denitrification out of the apparatus, the generation of the treating gas 2 is temporarily stopped, and the generated gas is isolated temporarily from the desulfurization apparatus, and then fresh air is introduced through the air suction valve 18. Then, the air is heated by heating furnaces inside the desulfurization apparatus 6 and the denitrification apparatus 10, into the catalyst layer 12 to heat the catalyst layer to 400W450°C, where the sulfur present in the catalyst is oxidized to SOx and expelled, and passed through the by-pass 26 and returned to the desulfurization apparatus 6 for desulfurization. Then, the air is heated again by the heating furnace of the denitrification apparatus 10 and circulated repeatedly through the catalyst layer 12 in order to reduce SOx to less than its environmental standard. Then, the gas is discharged through the stack 14. Thereafter, the connection to the source 2 in the untreated state is disclosed. Thus, SOx generated in company with the regeneration of the catalyst can be treated effectively.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9108479A JPS5615843A (en) | 1979-07-17 | 1979-07-17 | Regeneration of denitrification catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9108479A JPS5615843A (en) | 1979-07-17 | 1979-07-17 | Regeneration of denitrification catalyst |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5615843A true JPS5615843A (en) | 1981-02-16 |
JPS6247582B2 JPS6247582B2 (en) | 1987-10-08 |
Family
ID=14016643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9108479A Granted JPS5615843A (en) | 1979-07-17 | 1979-07-17 | Regeneration of denitrification catalyst |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5615843A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62225231A (en) * | 1986-03-27 | 1987-10-03 | Nippon Kokan Kk <Nkk> | Method for regenerating denitration catalyst |
CN106607106A (en) * | 2015-10-26 | 2017-05-03 | 浙江浙能技术研究院有限公司 | Activity regenerating and performance optimizing method of SCR catalyst for sulfur, arsenic and phosphorus poisoning |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05132254A (en) * | 1991-11-05 | 1993-05-28 | Hitachi Building Syst Eng & Service Co Ltd | Indicator box centering device for elevator |
-
1979
- 1979-07-17 JP JP9108479A patent/JPS5615843A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62225231A (en) * | 1986-03-27 | 1987-10-03 | Nippon Kokan Kk <Nkk> | Method for regenerating denitration catalyst |
JPH0363409B2 (en) * | 1986-03-27 | 1991-10-01 | Nippon Kokan Kk | |
CN106607106A (en) * | 2015-10-26 | 2017-05-03 | 浙江浙能技术研究院有限公司 | Activity regenerating and performance optimizing method of SCR catalyst for sulfur, arsenic and phosphorus poisoning |
Also Published As
Publication number | Publication date |
---|---|
JPS6247582B2 (en) | 1987-10-08 |
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