CN102553421B - Denitration method in SNCR (selective non catalytic reduction) furnace for exactly realizing temperature window tracking - Google Patents
Denitration method in SNCR (selective non catalytic reduction) furnace for exactly realizing temperature window tracking Download PDFInfo
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- CN102553421B CN102553421B CN 201210018423 CN201210018423A CN102553421B CN 102553421 B CN102553421 B CN 102553421B CN 201210018423 CN201210018423 CN 201210018423 CN 201210018423 A CN201210018423 A CN 201210018423A CN 102553421 B CN102553421 B CN 102553421B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract 2
- 239000007921 spray Substances 0.000 claims description 60
- 239000003546 flue gas Substances 0.000 claims description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 15
- 230000036413 temperature sense Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003517 fume Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 241000628997 Flos Species 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract description 9
- 230000006698 induction Effects 0.000 abstract description 2
- 230000001939 inductive effect Effects 0.000 abstract 2
- 239000000523 sample Substances 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 10
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 150000001723 carbon free-radicals Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201210018423 CN102553421B (en) | 2012-01-20 | 2012-01-20 | Denitration method in SNCR (selective non catalytic reduction) furnace for exactly realizing temperature window tracking |
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CN 201210018423 CN102553421B (en) | 2012-01-20 | 2012-01-20 | Denitration method in SNCR (selective non catalytic reduction) furnace for exactly realizing temperature window tracking |
Publications (2)
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CN102553421A CN102553421A (en) | 2012-07-11 |
CN102553421B true CN102553421B (en) | 2013-10-16 |
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CN 201210018423 Active CN102553421B (en) | 2012-01-20 | 2012-01-20 | Denitration method in SNCR (selective non catalytic reduction) furnace for exactly realizing temperature window tracking |
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Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103423766B (en) * | 2013-07-18 | 2016-03-02 | 武汉九州三维燃烧科技有限公司 | A kind of firing optimization method improving SNCR denitration efficiency |
CN104001420B (en) * | 2014-06-09 | 2016-01-20 | 盐城工学院 | The control method of a kind of flue gas SNCR denitration control device and use thereof |
CN105214468B (en) * | 2014-06-10 | 2018-05-01 | 四川大学 | The ammonium hydroxide spray method and flusher of cement decomposing furnace SNCR method denitrating systems |
CN104501195B (en) * | 2014-12-11 | 2017-05-31 | 杭州塘栖热电有限公司 | A kind of chain furnace and chain furnace method of denitration |
CN106669406A (en) * | 2017-03-03 | 2017-05-17 | 东北师范大学 | Denitrified accurate urea spraying device based on double sensors |
CN109200779A (en) * | 2017-07-04 | 2019-01-15 | 北京英斯派克科技有限公司 | A kind of device and method for the combustion zone denitration of carbon electrode open roasting furnace |
CN107991885A (en) * | 2017-12-28 | 2018-05-04 | 华能吉林发电有限公司长春热电厂 | A kind of coal-burning power plant's denitration spray ammonia autocontrol method and system |
CN110513702A (en) * | 2019-08-19 | 2019-11-29 | 上海南一环保科技有限公司 | A kind of waste incinerator denitration adjustable spray equipment and SNCR denitration system |
CN114100330B (en) * | 2021-11-08 | 2024-04-23 | 北京云岚科技有限公司 | Ammonia spraying automatic control method and system for nitrogen oxides discharged by industrial enterprises |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101668929A (en) * | 2006-12-22 | 2010-03-10 | 卡万塔能源公司 | Dynamic control of selective non-catalytic reduction system for semi-batch-fed stoker-based municipal solid waste combustion |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7780934B2 (en) * | 2005-09-06 | 2010-08-24 | Headwaters Incorporated | Method and system for reducing ammonia slip after selective reduction of NOx |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101668929A (en) * | 2006-12-22 | 2010-03-10 | 卡万塔能源公司 | Dynamic control of selective non-catalytic reduction system for semi-batch-fed stoker-based municipal solid waste combustion |
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CN102553421A (en) | 2012-07-11 |
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C06 | Publication | ||
PB01 | Publication | ||
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C53 | Correction of patent for invention or patent application | ||
CB02 | Change of applicant information |
Address after: 200125, 7C-18, building 7, building 3409, Dongfang Road, Shanghai, Pudong New Area Applicant after: Shanghai Techspray Engineering Co., Ltd. Address before: 200125, 7C-18, building 7, building 3409, Dongfang Road, Shanghai, Pudong New Area Applicant before: Shanghai Techspray Co., Ltd. |
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COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: SHANGHAI TECHSPRAY ENVIRONMENTAL PROTECTION COMPLETE EQUIPMENT CO., LTD. TO: SHANGHAI TECHSPRAY ENGINEERING CO., LTD. |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP03 | Change of name, title or address |
Address after: 200125, room 3, floor 3, building 3601, 305 Dongfang Road, Shanghai, Pudong New Area Patentee after: Shanghai Taixin environmental engineering Limited by Share Ltd Address before: 200125, 7C-18, building 7, building 3409, Dongfang Road, Shanghai, Pudong New Area Patentee before: Shanghai Techspray Engineering Co., Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 200125, room 3, floor 3, building 3601, 305 Dongfang Road, Shanghai, Pudong New Area Patentee after: Shanghai Taixin Environmental Engineering Co., Ltd Address before: 200125, room 3, floor 3, building 3601, 305 Dongfang Road, Shanghai, Pudong New Area Patentee before: Shanghai Taixin environmental engineering Limited by Share Ltd |