JPS5637036A - Treatment of nitrogen oxides in exhaust gas - Google Patents
Treatment of nitrogen oxides in exhaust gasInfo
- Publication number
- JPS5637036A JPS5637036A JP11342879A JP11342879A JPS5637036A JP S5637036 A JPS5637036 A JP S5637036A JP 11342879 A JP11342879 A JP 11342879A JP 11342879 A JP11342879 A JP 11342879A JP S5637036 A JPS5637036 A JP S5637036A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- catalitic
- reactor
- temp
- water vapor
- 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
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To carry out the exhaust gas desulfurizing treatment efficiently by blowing a specific amount of water vapor or water into the exhaust gas of an upstream side of a catalitic reactor of a denitrating apparatus as well as maintaining the temp. of the catalitic reactor in a specific range.
CONSTITUTION: In a general operating condition at reaction temp. of 300W450°C, 5W60vol%, pref., 10W50vol% of water vapor against the total treating exhaust gas is added to the exhaust gas to be treated through a water vapor supply pipe 13 to form a high humidity atmosphere temporally. Moreover, the temp. of a catalitic reactor 2 is maintained at 300W450°C, more pref., 350W400°C and a poisoning component contained in a catalyst is decomposed and released to regenerate said catalyst. The temp. of the catalitic reactor 2 is regulated by controlling a damper 12 of a bypass 11. In substitute of the water vapor supply pipe 13, a water injecting pipe 15 is provided and said high humidity atmosphere can be formed by adding water.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11342879A JPS5637036A (en) | 1979-09-03 | 1979-09-03 | Treatment of nitrogen oxides in exhaust gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11342879A JPS5637036A (en) | 1979-09-03 | 1979-09-03 | Treatment of nitrogen oxides in exhaust gas |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5637036A true JPS5637036A (en) | 1981-04-10 |
JPS6211891B2 JPS6211891B2 (en) | 1987-03-16 |
Family
ID=14611974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11342879A Granted JPS5637036A (en) | 1979-09-03 | 1979-09-03 | Treatment of nitrogen oxides in exhaust gas |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5637036A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106492887A (en) * | 2016-10-28 | 2017-03-15 | 浙江大学 | A kind of method of the online activity recovery of SCR denitration |
JP2019534782A (en) * | 2016-09-26 | 2019-12-05 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Method for reducing nitrogen oxide compounds |
US11471831B2 (en) | 2016-09-26 | 2022-10-18 | Shell Usa, Inc. | Method of regenerating a deNOx catalyst |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52107268A (en) * | 1976-03-05 | 1977-09-08 | Mitsubishi Chem Ind Ltd | Combustion apparatus |
JPS55116443A (en) * | 1979-02-28 | 1980-09-08 | Agency Of Ind Science & Technol | Regeneration of dry type simultaneous desulfurization and denitrification catalyst |
-
1979
- 1979-09-03 JP JP11342879A patent/JPS5637036A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52107268A (en) * | 1976-03-05 | 1977-09-08 | Mitsubishi Chem Ind Ltd | Combustion apparatus |
JPS55116443A (en) * | 1979-02-28 | 1980-09-08 | Agency Of Ind Science & Technol | Regeneration of dry type simultaneous desulfurization and denitrification catalyst |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019534782A (en) * | 2016-09-26 | 2019-12-05 | シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー | Method for reducing nitrogen oxide compounds |
US11471831B2 (en) | 2016-09-26 | 2022-10-18 | Shell Usa, Inc. | Method of regenerating a deNOx catalyst |
CN106492887A (en) * | 2016-10-28 | 2017-03-15 | 浙江大学 | A kind of method of the online activity recovery of SCR denitration |
Also Published As
Publication number | Publication date |
---|---|
JPS6211891B2 (en) | 1987-03-16 |
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