JPS5771624A - Reduction of nox present in waste gas - Google Patents
Reduction of nox present in waste gasInfo
- Publication number
- JPS5771624A JPS5771624A JP55148057A JP14805780A JPS5771624A JP S5771624 A JPS5771624 A JP S5771624A JP 55148057 A JP55148057 A JP 55148057A JP 14805780 A JP14805780 A JP 14805780A JP S5771624 A JPS5771624 A JP S5771624A
- Authority
- JP
- Japan
- Prior art keywords
- waste gas
- gas
- mixed
- line
- reduction
- 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
- 239000002912 waste gas Substances 0.000 title abstract 5
- 239000007789 gas Substances 0.000 abstract 5
- 239000003054 catalyst Substances 0.000 abstract 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- -1 air Chemical compound 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000011282 treatment Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Incineration Of Waste (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
PURPOSE: To save the amount of catalyst used as well as raise the efficiency of dentrification by a method in which the concentration of oxygen in waste gas after being reduction and denitrification treatments in a furnace is regulated and then mixed with NH3, and then the gas is passed through the catalyst.
CONSTITUTION: Combustion waste gas of 1,000W1,600°C, containing O2 and NOx, generated in a furnace 1a is converted into a gas containing N2, HCN, and NH3 by a petroleum fuel supplied from a line 3. The gas is then mixed with a gas containing oxygen, e.g., air, etc., from a line 4 to convert it into waste gas containing N2 and a small amount of NOx. Then, the waste gas is mixed with air, etc., from a line 5 to make the concentration of O2 approx. 2%, and then mixed with NH3 supplied from a line 6. Then, the gas is passed through a denitrification catalyst layer 7 to decompose the remaining NOx into N2 and water.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148057A JPS5771624A (en) | 1980-10-22 | 1980-10-22 | Reduction of nox present in waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148057A JPS5771624A (en) | 1980-10-22 | 1980-10-22 | Reduction of nox present in waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771624A true JPS5771624A (en) | 1982-05-04 |
Family
ID=15444200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55148057A Pending JPS5771624A (en) | 1980-10-22 | 1980-10-22 | Reduction of nox present in waste gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771624A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168947B2 (en) * | 2004-07-06 | 2007-01-30 | General Electric Company | Methods and systems for operating combustion systems |
| JP2009521312A (en) * | 2005-12-21 | 2009-06-04 | プラクスエア・テクノロジー・インコーポレイテッド | Reduction of CO and NOx in regenerator flue gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50130677A (en) * | 1974-04-02 | 1975-10-16 | ||
| JPS5440277A (en) * | 1977-09-06 | 1979-03-29 | Mitsubishi Heavy Ind Ltd | Reducing method for nitrogen oxides in exhaust gas |
-
1980
- 1980-10-22 JP JP55148057A patent/JPS5771624A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50130677A (en) * | 1974-04-02 | 1975-10-16 | ||
| JPS5440277A (en) * | 1977-09-06 | 1979-03-29 | Mitsubishi Heavy Ind Ltd | Reducing method for nitrogen oxides in exhaust gas |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7168947B2 (en) * | 2004-07-06 | 2007-01-30 | General Electric Company | Methods and systems for operating combustion systems |
| JP2009521312A (en) * | 2005-12-21 | 2009-06-04 | プラクスエア・テクノロジー・インコーポレイテッド | Reduction of CO and NOx in regenerator flue gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS54134012A (en) | Iron making by a direct method | |
| JPS5771624A (en) | Reduction of nox present in waste gas | |
| JPS5330975A (en) | Decreasing method for nitrogen oxides concentration of combustion exhaust gas | |
| JPS5394271A (en) | Absorbing and removing method of nox in exhaust gas | |
| JPS55112913A (en) | Low nox combustion system | |
| JPS53102866A (en) | Treating method for waste gas comtaining ammonia | |
| JPS5637029A (en) | Reduction of nox in exhaust gas | |
| JPS529674A (en) | A denitration apparatus for combustion gases | |
| JPS5544365A (en) | Treating method for waste gas | |
| JPS55125198A (en) | Hydrocarbon fuel having high combustion efficiency | |
| JPS54158371A (en) | Reducing method for nitrogen oxides contained in exhaust gas | |
| JPS546859A (en) | Denitrating method for exhaust gas containing co | |
| JPS5551426A (en) | Treatment of ammonia-containing waste gas | |
| JPS5570325A (en) | Reduction of oxides of nitrogen in exhaust gas | |
| JPS52131226A (en) | Combustion method at nox generation control fuel furnace | |
| JPS5376968A (en) | Refining method for combustion exhaust gas | |
| JPS543926A (en) | Flow layer combustion | |
| JPS5360880A (en) | Wet desulfurizing method for exhaust gas by use of slag | |
| JPS51146368A (en) | A process for denitration and desulfurization treatment of exhaust gas | |
| JPS56141819A (en) | Treatment of waste gas | |
| JPS5333977A (en) | Automatically controlling method for quantity of introduced nh3 in denitration plant for flue gas | |
| JPS54131569A (en) | Treatment of exhaust gas containing carbon monoxide and nitrogen oxides | |
| JPS5673526A (en) | Exhaust smoke desulfurization and denitrification method | |
| JPS5670822A (en) | Method of reducing nitrogen oxides generated in combustion | |
| JPS5640420A (en) | Denitrification of co-containing waste gas |