CN203764106U - Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption - Google Patents
Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption Download PDFInfo
- Publication number
- CN203764106U CN203764106U CN201420049203.5U CN201420049203U CN203764106U CN 203764106 U CN203764106 U CN 203764106U CN 201420049203 U CN201420049203 U CN 201420049203U CN 203764106 U CN203764106 U CN 203764106U
- Authority
- CN
- China
- Prior art keywords
- ozone
- flue gas
- sncr
- oxidation
- spray
- 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.)
- Expired - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 55
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 40
- 230000003647 oxidation Effects 0.000 title claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 30
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 100
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims description 54
- 238000005507 spraying Methods 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 11
- 230000003009 desulfurizing effect Effects 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 22
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 3
- 238000006477 desulfuration reaction Methods 0.000 abstract 2
- 230000023556 desulfurization Effects 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 8
- 238000009826 distribution Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption. The device comprises a furnace hearth, a cyclone separator, a dust remover, a desulfurization tower and a chimney, wherein the furnace hearth is connected with an ammonia injection module, the dust remover is connected with the desulfurization tower by an oxidative flue, an ozone injection device is arranged in the oxidative flue, and the ozone injection device is connected with an ozone generator. According to the utility model, SNCR, gas phase oxidation and wet absorption are combined, firstly, flue gas is subjected to preliminary denitrification by using SNCR, then, the flue gas is subjected to gas phase oxidation so as to form high-valence-state oxynitride, and finally, the obtained product is subjected to wet absorption. The flue gas denitrification device improves the denitrification efficiency of flue gas, and has the advantages that the space occupied area is small, reconstruction on an original system is facilitated and the reconstruction cost is relatively low, the energy consumption of ozone is reduced, resources are saved, the cost is lowered, and ozone escape is reduced, and the like.
Description
Technical field
The utility model relates to atmosphere pollution technology control field, is specifically related to the SNCR-ozone oxidation of a kind of easy of integration, high efficiency, low energy consumption in conjunction with the equipment for denitrifying flue gas of wet absorption.
Background technology
In the flue gas that coal combustion produces, contain a large amount of nitrogen oxide (NO
x), comprise N
2o, NO, NO
2, N
2o
3, N
2o
4and N
2o
5, nitrogen oxide harmfulness is very big, is one of major pollutants that cause greenhouse effects, acid rain and depletion of the ozone layer.China's atmosphere NO according to statistics
xin discharge 67% carrys out spontaneous combustion coal, therefore coal-fired boiler in power plant carried out to NO
xcontrol processing extremely important.In recent years, Environmental Protection in China rules have been carried out stricter restriction and regulation to discharged nitrous oxides standard.
For example, application number is that 201220630798.4 Chinese utility model patent document discloses a kind of SNCR flue gas denitrification system, and it comprises tank used for storing ammonia, deionized water storage tank, compressed air reservoir, distribution control system, atomisation system and NOx on-line monitoring system; Wherein, described tank used for storing ammonia is connected to distribution control system, and it is with stirring motor; Described deionized water storage tank is connected to distribution control system by a deionized water pressurizing control system; Described distribution control system is connected successively with atomisation system; Described compressed air reservoir is connected to atomisation system by a compressed air control system; Described NOx on-line monitoring system is connected with distribution control system.
Comparatively ripe method of denitration has at present: denitrating flue gas selective catalytic reduction (hereinafter to be referred as SCR), SNCR method (hereinafter to be referred as SNCR) or SNCR-SCR combined denitration method.For original large-scale coal fired power plant coal-burning boiler, because being subject to the restriction of the composite factors such as burner hearth physical dimension, temperature window, adopt single SNCR technique, denitration efficiency is not high; Adopt single SCR technique, need the consumption of catalyst and reactor size larger, also need to increase the equipment such as the preparation of reducing agent ammonia and spraying system, investment and operating cost are higher; And adopt the SNCR-SCR mixed flue gas denitration method problems such as also Existential Space takies greatly, improvement expenses is high, be not suitable for common middle-size and small-size thermal power plant.
Gaseous oxidation as a kind of novel denitration technology, utilizes the gaseous oxidizing agents such as ozone that the less NO of solubility in flue gas is oxidized to NO in conjunction with wet absorption denitrating flue gas
2, N
2o
5deng, and then remove with alkaline absorption solution.But it is higher in Practical Project, NO in flue gas to be oxidized to the required oxygen nitrogen of high valence state nitrogen oxide, and ozoniferous energy consumption is higher.
Utility model content
The utility model provides the equipment for denitrifying flue gas of a kind of SNCR-ozone oxidation in conjunction with wet absorption, can solve the technical problems such as existing denitrating system removal efficiency is low, complex structure, production cost is high, space hold is large, simplify denitrating technique, reduced cost of investment.
A kind of SNCR-ozone oxidation is in conjunction with the equipment for denitrifying flue gas of wet absorption, comprise the burner hearth, cyclone separator, deduster, desulfurizing tower and the chimney that connect successively, described burner hearth connects spray ammonia module, described deduster connects desulfurizing tower by oxidation flue, in described oxidation flue, ozone injection apparatus is set, described ozone injection apparatus connects ozone generator.
The flue gas of Boiler Furnace chamber inner combustion first carries out SNCR denitration in burner hearth, and the flue gas after SNCR denitration carries out ozone oxidation after dedusting, and the NO that solubility in flue gas is less is oxidized to NO
2, N
2o
5deng, and then remove with alkaline absorption solution, the flue gas after final purification is discharged by chimney.
Described desulfurizing tower is wet sprinkling absorption tower, in tower, be followed successively by tower reactor, spraying layer and demist layer from bottom to top, exhanst gas outlet is positioned at the top on absorption tower, and smoke inlet is between tower reactor and spraying layer, the quantity of spraying layer arranges 2～5 layers, and the quantity of demist layer is set to 1～3 layer.Absorbent adopts calcium base, magnesium method and ammonia process etc.
As preferably, described ozone injection apparatus is for spraying grid.
Further preferably, the grille plane of described injection grid is arranged perpendicular to walling of flue.
The Main Function that sprays grid is that ozone is sprayed in flue gas equably, the uniformity that ozone sprays has important function to gaseous oxidation in conjunction with wet absorption system, not only can be so that gas phase mixes, avoid some areas because oxygen nitrogen declines than the not enough denitration efficiency causing, improve denitration efficiency.Can also improve the utilization rate of ozone, reduce the ozone escapement ratio in smoke evacuation tail gas, reduce the corrosion to follow-up equipment simultaneously.
As preferably, described injection grid comprises:
Carriage;
Be installed on some spray ozone arms in carriage;
Be opened in the some ozone spouts on spray ozone arm.
Further preferably, each sprays on ozone arm and is equipped with flow control valve.Each sprays ozone arm can independently control.
Further preferably, be also provided with the spray ozone house steward who connects ozone generator, all spray ozone arms are all communicated with this spray ozone house steward, and spray ozone house steward is provided with total flow control valve.
Further preferably, between all spray ozone arms, be parallel to each other, and evenly arrange in carriage.
As preferably, be also provided with a source of the gas platform being connected with ozone generator, ozone oxidation system adopts dry compressed gas source, comprises two kinds of air-source and source of oxygen, and producing ozone is 0.5-1.5 with nitrous oxides concentration than scope.
Further preferably, described ozone spout is positioned at spray ozone arm and deviates from a side of flue gas incoming flow, and spray ozone arm is provided with reinforcement baffle plate towards a side of flue gas incoming flow.The injection direction that is ozone is consistent with flue gas stream direction, strengthens the intensity that baffle plate can strengthen spray ozone arm, reduces the wearing and tearing of particulate matter to spray ozone arm in flue gas stream.
Further preferably, in described injection grid, the density of setting of ozone spout is 20-40/m
2, ozone spout internal diameter is 5-15mm.Controlling spout flow velocity is 15-35m/s.
As preferably, described spray ammonia module comprises metering module, mixing module and the ammonia jet module connecting successively, and described ammonia jet module is arranged on the smoke outlet of described burner hearth.Furnace outlet place flue-gas temperature is 800-1200 ℃.
The utility model combines SNCR with gaseous oxidation and wet absorption, first adopt SNCR to carry out preliminary denitration to flue gas, then with ozone, the NO not removing completely in flue gas is oxidized to high valence state nitrogen oxide, finally enters absorption tower and carries out wet absorption.When improving denitrating flue gas efficiency, have concurrently again space hold area little, be convenient to transform on original system and improvement expenses is lower, reduce ozone energy consumption, saving resource, the advantage such as reduce costs.
At ozone entrance place, be provided with ozone and spray grid simultaneously, make ozone spray into equably in flue gas, the uniformity that ozone sprays has important function to gaseous oxidation in conjunction with wet absorption system, not only can be so that gas phase mixes, avoid some areas because oxygen nitrogen declines than the not enough denitration efficiency causing, improve denitration efficiency.Can also improve the utilization rate of ozone, reduce the ozone escapement ratio in smoke evacuation tail gas, reduce the corrosion to follow-up equipment simultaneously.
Compared with prior art, the utlity model has following beneficial effect:
(1) space hold area is less, be convenient to transform on original denitrating system basis and improvement expenses lower;
(2) reduce the energy consumption of gaseous oxidation system ozone, saving resource, when reducing costs, guarantees higher denitration efficiency.
(3) reduce the ozone escapement ratio in smoke evacuation tail gas, reduce the corrosion to follow-up equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device.
Fig. 2 is that the utility model sprays grid and the cutaway view that is oxidized flue.
Fig. 3 is the structural representation that the utility model sprays grid.
Fig. 4 is the cutaway view of ozone spout.
Shown in figure, Reference numeral is as follows:
1-metering module 2-mixing module 3-ammonia jet module
4-ammonia entrance 5-burner hearth 6-cyclone separator
7-deduster 8-source of the gas platform 9-ozone generator
10-ozone entrance 11-ozone injection apparatus 12-smoke inlet
13-desulfurizing tower 14-tower reactor 15-spraying layer
16-demist layer 17-exhanst gas outlet 18-chimney
19-oxidation flue 20-walling of flue 1101-spray ozone arm
1102-ozone spout 1103-flow control valve 1104-strengthens baffle plate.
The specific embodiment
As shown in Fig. 1～4, a kind of SNCR-ozone oxidation is in conjunction with the equipment for denitrifying flue gas of wet absorption, comprise the burner hearth 5, cyclone separator 6, deduster 7, desulfurizing tower 13 and the chimney 18 that connect successively, the furnace outlet place of burner hearth 5 connects reducing agent and sprays module, connecting deduster 7 is oxidation flue 19 with the flue of desulfurizing tower 13, oxidation flue 19 is provided with ozone entrance 10, ozone entrance 10 connects ozone generators 9, in oxidation flue 19 and be positioned at ozone entrance place ozone injection apparatus 11 is set.
Reducing agent sprays module and comprises metering module 1, mixing module 2 and the ammonia jet module 3 connecting successively, and the top smoke outlet of burner hearth arranges ammonia entrance 4, and ammonia jet module 3 is arranged on this ammonia entrance 4 places.
Desulfurizing tower 13 adopts conventional Multi-layer sprinkling absorption tower, in tower, be followed successively by from the bottom to top tower reactor 14, spraying layer 15 and demist layer 16, tower top arranges exhanst gas outlet 17, exhanst gas outlet 17 connection outlet flues, exhaust pass connects chimney 18, smoke inlet 12 is on the tower wall between tower reactor and spraying layer, and smoke inlet 12 is connected with oxidation flue 19, in present embodiment, the number of plies of spraying layer is set to 3 layers, and the number of plies of demist layer is set to 2 layers.
By a series of thickness, the plastic plate 0.5 centimetre of left and right forms demist layer, and each plastic plate becomes rugosity, and demist layer is provided with folding flue; Every layer of spraying layer is all comprised of several nozzles.
In present embodiment, ozone injection apparatus 11 adopts and sprays grid, spray the structural representation of grid as shown in Figure 2 to 4, spray grid and comprise that carriage (not shown) and some ozone spray arm 1101, ozone sprays on arm 1101 offers ozone spout 1102.
All ozone sprays arm 1101 and is parallel to each other and is arranged on evenly and at intervals in carriage, each sprays flow control valve 1103 is all independently set on ozone arm, a spray ozone house steward (not shown) is also set outside oxidation flue 19, be used for connecting ozone generator 9, all ozone sprays arm 1101 and is all communicated with on this spray ozone house steward, on spray ozone house steward, total flow control valve is set.
The density of setting that sprays the ozone spout of grid is 20-40/m
2, spout internal diameter 5-15mm; Ozone spout is positioned at the side that deviates from flue gas incoming flow that ozone sprays arm, the injection direction of ozone is consistent with flue gas flow direction, a side towards flue gas incoming flow on spray ozone arm is provided with reinforcement baffle plate 1104(as shown in Figure 4), for reducing flue gas isolated substance, ozone is sprayed to the wearing and tearing of arm, increase the service life.
Spray the setting position of grid in oxidation flue and set-up mode as shown in figures 1 and 3, the plane of spraying grid arranges perpendicular to the walling of flue 20 of oxidation flue 19.
Ozone generator 9 also connects a source of the gas platform 8, and source of the gas platform can be used two kinds of air-source and source of oxygen, is responsible for providing the source of the gas of clean dried.Ozone generator utilizes suitable source of the gas to produce high-concentrated ozone by high-frequency discharge.
Technological process of the present utility model is as follows:
Adopt process unit as shown in the figure, hearth combustion produces flue gas.SNCR reducing agent enters mixing module after measuring by metering module, fully mixes with dilution water.Through jet module, by jet, enter burner hearth again, carry out the preliminary denitration of flue gas.NO in flue gas can be reduced to 150ppm left and right.Flue gas after preliminary denitration enters flue after dust arrester dedusting.
Ozone oxidation system is provided the source of the gas of clean dried by source of the gas platform, source of the gas produces high-concentrated ozone gas through ozone generator, via ozone entrance, enter flue, and spray into flue by spraying grid, make ozone carry out full and uniform mixing with nitrogen oxide, the remaining NO in the flue gas after preliminary denitration is oxidized to NO
2, N
2o
5contour valence state nitrogen oxide.
Flue gas after ozone oxidation enters spray column, carries out absorbing and removing, then pass through demist layer through Multi-layer sprinkling, obtains meeting the flue gas of discharge standard, finally enters smoke stack emission to air.
Claims (10)
1. a SNCR-ozone oxidation is in conjunction with the equipment for denitrifying flue gas of wet absorption, comprise the burner hearth, cyclone separator, deduster, desulfurizing tower and the chimney that connect successively, described burner hearth connects spray ammonia module, it is characterized in that, described deduster connects desulfurizing tower by oxidation flue, in described oxidation flue, ozone injection apparatus is set, described ozone injection apparatus connects ozone generator.
2. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 1, and described ozone injection apparatus is for spraying grid.
3. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 2, and the grille plane of described injection grid is arranged perpendicular to walling of flue.
4. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 3, and described injection grid comprises:
Carriage;
Be installed on some spray ozone arms in carriage;
Be opened in the some ozone spouts on spray ozone arm.
5. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 4, and each sprays on ozone arm and is equipped with flow control valve.
According to claim 4 SNCR-ozone oxidation in conjunction with the equipment for denitrifying flue gas of wet absorption, it is characterized in that, also be provided with the spray ozone house steward who connects ozone generator, all spray ozone arms are all communicated with this spray ozone house steward, and spray ozone house steward is provided with total flow control valve.
7. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 4, is parallel to each other, and evenly arranges in carriage between all spray ozone arms.
8. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 4, and described ozone spout is positioned at spray ozone arm and deviates from a side of flue gas incoming flow, and spray ozone arm is provided with reinforcement baffle plate towards a side of flue gas incoming flow.
9. SNCR-ozone oxidation, in conjunction with the equipment for denitrifying flue gas of wet absorption, is characterized in that according to claim 4, and in described injection grid, the density of setting of ozone spout is 20-40/m
2, ozone spout internal diameter is 5-15mm.
10. the equipment for denitrifying flue gas in conjunction with wet absorption according to SNCR-ozone oxidation described in the arbitrary claim of claim 1～9, it is characterized in that, described spray ammonia module comprises metering module, mixing module and the ammonia jet module connecting successively, and described ammonia jet module is arranged on the smoke outlet of described burner hearth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049203.5U CN203764106U (en) | 2014-01-26 | 2014-01-26 | Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049203.5U CN203764106U (en) | 2014-01-26 | 2014-01-26 | Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203764106U true CN203764106U (en) | 2014-08-13 |
Family
ID=51281354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420049203.5U Expired - Lifetime CN203764106U (en) | 2014-01-26 | 2014-01-26 | Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203764106U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258698A (en) * | 2014-09-30 | 2015-01-07 | 东方电气集团东方锅炉股份有限公司 | SNCR (selective non-catalytic reduction) denitration reducing agent injection system |
| CN104888591A (en) * | 2015-06-04 | 2015-09-09 | 南京龙源环保有限公司 | Boiler flue gas denitration purification system and boiler flue gas denitration purification method |
| CN105080314A (en) * | 2015-09-02 | 2015-11-25 | 上海蕲黄节能环保设备有限公司 | SNCR (selective non-catalytic reduction) and ozone flue gas denitrification device |
| CN105251326A (en) * | 2015-10-09 | 2016-01-20 | 广州特种承压设备检测研究院 | Reduction and oxidation combined denitration system and denitration method thereof |
| CN106000038A (en) * | 2016-07-07 | 2016-10-12 | 无锡市昂益达机械有限公司 | Integral waste gas treatment device |
| CN106039959A (en) * | 2016-07-11 | 2016-10-26 | 江苏天立方环保工程有限公司 | Ozone oxidation denitrification technology |
| CN106925098A (en) * | 2015-12-31 | 2017-07-07 | 杭州中兵环保股份有限公司 | A kind of nitrogen oxides in effluent is converted to the apparatus and method of nitrite |
| CN107131517A (en) * | 2016-02-26 | 2017-09-05 | 杭州中兵环保股份有限公司 | A kind of ozone oxidation lifts the device and method of SNCR denitration efficiency |
| CN110893314A (en) * | 2019-12-19 | 2020-03-20 | 广西江邕环保科技有限公司 | Wet process low temperature deNOx systems |
| WO2021056830A1 (en) * | 2019-09-23 | 2021-04-01 | 中国科学院过程工程研究所 | Denitration treatment system and treatment method for flue gas from pellet roasting by chain grate machine-rotary kiln |
| EP4166220A1 (en) * | 2021-10-12 | 2023-04-19 | Linde GmbH | Method and apparatus for reducing the content of nitrogen oxides in a flue gas flow |
-
2014
- 2014-01-26 CN CN201420049203.5U patent/CN203764106U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104258698A (en) * | 2014-09-30 | 2015-01-07 | 东方电气集团东方锅炉股份有限公司 | SNCR (selective non-catalytic reduction) denitration reducing agent injection system |
| CN104888591B (en) * | 2015-06-04 | 2017-01-25 | 南京龙源环保有限公司 | Boiler flue gas denitration purification system and boiler flue gas denitration purification method |
| CN104888591A (en) * | 2015-06-04 | 2015-09-09 | 南京龙源环保有限公司 | Boiler flue gas denitration purification system and boiler flue gas denitration purification method |
| CN105080314A (en) * | 2015-09-02 | 2015-11-25 | 上海蕲黄节能环保设备有限公司 | SNCR (selective non-catalytic reduction) and ozone flue gas denitrification device |
| CN105251326A (en) * | 2015-10-09 | 2016-01-20 | 广州特种承压设备检测研究院 | Reduction and oxidation combined denitration system and denitration method thereof |
| CN106925098A (en) * | 2015-12-31 | 2017-07-07 | 杭州中兵环保股份有限公司 | A kind of nitrogen oxides in effluent is converted to the apparatus and method of nitrite |
| CN107131517A (en) * | 2016-02-26 | 2017-09-05 | 杭州中兵环保股份有限公司 | A kind of ozone oxidation lifts the device and method of SNCR denitration efficiency |
| CN106000038A (en) * | 2016-07-07 | 2016-10-12 | 无锡市昂益达机械有限公司 | Integral waste gas treatment device |
| CN106039959A (en) * | 2016-07-11 | 2016-10-26 | 江苏天立方环保工程有限公司 | Ozone oxidation denitrification technology |
| WO2021056830A1 (en) * | 2019-09-23 | 2021-04-01 | 中国科学院过程工程研究所 | Denitration treatment system and treatment method for flue gas from pellet roasting by chain grate machine-rotary kiln |
| CN110893314A (en) * | 2019-12-19 | 2020-03-20 | 广西江邕环保科技有限公司 | Wet process low temperature deNOx systems |
| EP4166220A1 (en) * | 2021-10-12 | 2023-04-19 | Linde GmbH | Method and apparatus for reducing the content of nitrogen oxides in a flue gas flow |
| WO2023061624A1 (en) * | 2021-10-12 | 2023-04-20 | Linde Gmbh | Method for reducing the content of nitrogen oxides in a flue gas stream of thermal waste treatment plants |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203764106U (en) | Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption | |
| CN104107626B (en) | Sintering flue gas circulating fluidized bed (CFB) semi-dry combined desulfurization and denitrification device and method | |
| CN105444195B (en) | Coal-fired flue-gas multi-pollutant cooperative processing method and its system | |
| CN204555717U (en) | Warm flue gas SCR denitration device in a kind of cement kiln end | |
| CN103801176B (en) | A kind of ozone oxidation is in conjunction with the flue-gas denitration process of spraying cooling and device | |
| CN104759192A (en) | Low-cost coal-fired flue gas various pollutant ultralow emission system and low-cost coal-fired flue gas various pollutant ultralow emission method | |
| CN104888591A (en) | Boiler flue gas denitration purification system and boiler flue gas denitration purification method | |
| CN110787630A (en) | Flue gas treatment device and process for semi-dry desulfurization and low-temperature SCR denitration of carbide slag | |
| CN205832964U (en) | A kind of semi-dry desulfurization and denitrification system based on biomass ash | |
| CN203916431U (en) | A kind of gaseous oxidation is in conjunction with the flue gas combined desulfurization and denitration device of wet absorption | |
| CN217220890U (en) | Domestic waste burns flue gas denitration deacidification dust removal integration system of optimization | |
| CN201239598Y (en) | Uniset for controlling cement kiln flue gas NOx | |
| CN205340521U (en) | Rotatory spraying SOx/NOx control system | |
| CN202136916U (en) | Flue gas purification system | |
| CN204582930U (en) | A kind of low cost coal-fired flue-gas multiple pollutant minimum discharge system | |
| CN212492330U (en) | Active coke combined desulfurization and denitrification system based on pre-oxidation | |
| CN211435768U (en) | Flue gas treatment device for semi-dry desulfurization and low-temperature SCR denitration of carbide slag | |
| CN203090746U (en) | Desulfurization and denitrification integrated device for smoke | |
| CN204543995U (en) | A kind of cement kiln end low-temperature smoke air SCR denitrification apparatus | |
| CN216825593U (en) | Coal fired boiler flue gas desulfurization denitration cooperative processing system | |
| CN212999279U (en) | Flue gas treatment system for efficiently utilizing carbon monoxide | |
| CN205288052U (en) | Low temperature ozone oxidation deNOx systems | |
| CN205361021U (en) | Wet -type oxidation absorption's denitrification facility | |
| CN208482234U (en) | A kind of flue gas wet denitration device | |
| CN112426863A (en) | Dry-method double-cloth-bag flue gas purification integrated device for cooperatively treating various pollutants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |