UA96229C2 - Method for removing nitrogen oxides from flue gases - Google Patents
Method for removing nitrogen oxides from flue gasesInfo
- Publication number
- UA96229C2 UA96229C2 UAA201009230A UAA201009230A UA96229C2 UA 96229 C2 UA96229 C2 UA 96229C2 UA A201009230 A UAA201009230 A UA A201009230A UA A201009230 A UAA201009230 A UA A201009230A UA 96229 C2 UA96229 C2 UA 96229C2
- Authority
- UA
- Ukraine
- Prior art keywords
- flue gases
- mixing
- product
- fed
- temperature
- Prior art date
Links
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title abstract 8
- 239000003546 flue gas Substances 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 2
- 239000004202 carbamide Substances 0.000 abstract 2
- 235000013877 carbamide Nutrition 0.000 abstract 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The present invention relates to processes of non-catalytic removing nitrogen oxides (NO) from flue gases and can be used to reduce NOemissions in flue gases of fuel-firing plants of any capacity and purpose. An aqueous solution of carbamide is put in contact with superheated steam under the temperature of 150-, pressure of 3.10 atm., for 0.5-5.0 sec. The resulting gas-steam reducible mixture is mixed with an ozone-containing mixture and a product of mixing is fed into the flow of flue gases with temperature of 150-. The weight ratio of ozone : carbamide is 0.01-1.0. Preferably the product of mixing is fed into the flow of flue gases having temperature of 250-, time of stay of the product of mixing in the flue gas flow is 0.2-1.0 s, the product of mixing is fed by a gas-carrier selected from the group consisting of air, water steam, flue gases, inert gases or mixtures thereof. Technical result: increased extent of purification.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2009128733/05A RU2411065C1 (en) | 2009-07-27 | 2009-07-27 | Method of removing nitrogen oxides from flue gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UA96229C2 true UA96229C2 (en) | 2011-10-10 |
Family
ID=43569956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UAA201009230A UA96229C2 (en) | 2009-07-27 | 2010-07-22 | Method for removing nitrogen oxides from flue gases |
Country Status (3)
| Country | Link |
|---|---|
| IL (1) | IL206677A0 (en) |
| RU (1) | RU2411065C1 (en) |
| UA (1) | UA96229C2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2472571C1 (en) * | 2011-06-28 | 2013-01-20 | Владимир Михайлович Гвоздев | Method of making nonpolluting wasteless coal-burning plant with complex non-catalytic cleaning of flue gases of nitrogen oxides and trapping of fly ash, its grinding, free carbon afterburning, rectification and complete recovery |
| EP3549661A1 (en) | 2018-04-06 | 2019-10-09 | Yara International ASA | Nox removal from gaseous effluents |
| RU2742174C1 (en) * | 2020-07-24 | 2021-02-02 | Открытое акционерное общество "Всероссийский дважды ордена Трудового Красного Знамени теплотехнический научно-исследовательский институт" (ОАО "ВТИ") | Method of purification from nitrogen oxides of fuel combustion products in gas duct of thermal unit and installation for its implementation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5314662A (en) * | 1976-07-28 | 1978-02-09 | Hitachi Ltd | Method for decreasing nitrogen oxides concentration of combustion exhaust gas |
| US4777024A (en) * | 1987-03-06 | 1988-10-11 | Fuel Tech, Inc. | Multi-stage process for reducing the concentration of pollutants in an effluent |
| RU2271856C2 (en) * | 2004-02-25 | 2006-03-20 | Российский государственный университет нефти и газа им. И.М. Губкина | Method of purification of flue gases from nitrogen oxide |
| US7368094B2 (en) * | 2004-09-23 | 2008-05-06 | General Motors Corporation | Plasma-assisted NOx reduction |
-
2009
- 2009-07-27 RU RU2009128733/05A patent/RU2411065C1/en not_active IP Right Cessation
-
2010
- 2010-06-28 IL IL206677A patent/IL206677A0/en unknown
- 2010-07-22 UA UAA201009230A patent/UA96229C2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL206677A0 (en) | 2010-12-30 |
| RU2411065C1 (en) | 2011-02-10 |
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