CN102225365A - System and method for modulating flue gas with sulfur trioxide - Google Patents
System and method for modulating flue gas with sulfur trioxide Download PDFInfo
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- CN102225365A CN102225365A CN2011101096633A CN201110109663A CN102225365A CN 102225365 A CN102225365 A CN 102225365A CN 2011101096633 A CN2011101096633 A CN 2011101096633A CN 201110109663 A CN201110109663 A CN 201110109663A CN 102225365 A CN102225365 A CN 102225365A
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Abstract
The invention discloses a system and a method for modulating flue gas with sulfur trioxide. The system comprises: a storage tank, a sulfuric acid conveying apparatus, a sulfuric acid pyrolysizing furnace, an air compressor for providing compressed air for the sulfuric acid pyrolysizing furnace, a blower and an air heating apparatus for providing hot air for the sulfuric acid pyrolysizing furnace, and an injector. The injector is connected to the sulfuric acid pyrolysizing furnace, and is arranged in the inlet flue of an electrostatic precipitator (ESP). With the flue gas modulating system and method provided by the present invention, sulfuric acid solution can be decomposed into a gas mixture of sulfur trioxide and steam under a high temperature; the gas mixture is then injected to the flue gas with the injector arranged in the inlet flue of the ESP; sulfur trioxide and moisture in the flue gas can be combined to form sulfuric acid aerosol attached to the surfaces of the dust particles; specific resistance of the dust can be reduced, and dedusting efficiency of the ESP can be improved. Compared to traditional technologies for modulating flue gas with sulfur trioxide, the method and the system provided by the present invention has advantages of simple operation, good economic benefit, and high improvement efficiency of the ESP.
Description
Technical field
The present invention relates to the chemical plant installations technical field, be specifically related to a kind of sulfur trioxide flue gas conditioning system and method.
Background technology
Electric cleaner since its efficiency of dust collection height, advantage such as operating cost is low, operation maintenance is simple on the vent gas treatment of industry such as whole world thermal power plant, cement plant, steel plant, be widely used.It can be removed the particle flue dust in fire coal or the oil burning boiler discharging flue gas, thereby reduces the fume amount that enters in the atmosphere significantly, is to improve environmental pollution, improves the important environmental protection equipment of air quality.
The shortcoming of electric cleaner is influenced by the physicochemical characteristics of flue gas and dust, influenced by dust specific resistance.For than resistance value 10
6～5 * 10
10Dust in the Ω .cm scope, electric cleaner shows good dust collection performance, but for surpassing 5 * 10 than resistance value
10Ω .cm even surpass 10
12The dust of Ω .cm, the charged and discharge performance extreme difference of this class dust, electric cleaner is easy to generate back corona phenomenon, and the result causes secondary voltage to descend, and secondary current sharply rises, and dust-collecting efficiency descends greatly.How to overcome high specific resistance this difficult problem that is difficult to gather dust, become one of bottleneck of electric cleaner development.The sulfur trioxide flue gas conditioning provides effective means for solving this technical barrier, the sulfur trioxide flue gas conditioning is promptly before flue gas enters electric cleaner, inject a small amount of (sulfur trioxide of about 10ppm～20ppm), sulfur trioxide combines with moisture in the flue gas, generate the sulfuric acid aerosol and be adsorbed on the dust surface, reduce dust surface ratio resistance, form the low resistivity surface channel, thereby improve the efficiency of dust collection of electric cleaner greatly.
The sulfur trioxide flue gas conditioning is in the extensive use of the especially American-European developed country of world wide, it is raw material that traditional handicraft adopts solid sulphur, at first the solid sulphur heat fused is become liquid sulfur, secondly liquid sulfur is transported to burning generation sulfur dioxide in the sulfur burner, then sulfur dioxide is transported to and is catalytically converted into sulfur trioxide in the converter, at last sulfur trioxide is injected in the electric cleaner inlet flue duct by injector.Traditional handicraft is through the loaded down with trivial details operation of multiple tracks, complex process, equipment cost height, and the temperature ranges of molten sulfur the best is between 125 ℃～145 ℃, be in the molten sulfur viscosity minimum in this temperature range, because molten sulfur is responsive to temperature, so occur faults such as leakage, obstruction in the process easily.
Summary of the invention
The problem that the present invention solves is to provide a kind of sulfur trioxide flue gas conditioning system, directly is that sulfur trioxide is used for flue gas conditioning with the sulfuric acid pyrolysis, and system is simple, and good dedusting effect has good and economic.The present invention also provides a kind of sulfur trioxide flue gas conditioning method.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
A kind of sulfur trioxide flue gas conditioning system, comprise: storage tank, sulfuric acid conveying device, sulfuric acid pyrolysis oven provided by the invention, compressed-air actuated air compressor is provided, provides the blower fan of hot-air and air heating apparatus, injector to described sulfuric acid pyrolysis oven to described sulfuric acid pyrolysis oven, described injector is connected with described sulfuric acid pyrolysis oven, and is arranged in the inlet flue duct of electric cleaner.
As preferably, described air heating apparatus comprise electric heater and be arranged on economizer and air preheater between the air heat coil pipe.
As preferably, described economizer links to each other with boiler, and described air preheater communicates with the inlet flue duct of described electric cleaner, is provided with the air heat coil pipe between economizer and the air preheater.
As preferably, described electric heater is in series with valve, and described valve is in parallel with described air heat coil pipe.
As preferably, the outlet of described air heat coil pipe is provided with the first hot air temperature checkout gear, and the outlet of described electric heater is provided with the second hot air temperature checkout gear.
A kind of sulfur trioxide flue gas conditioning method may further comprise the steps:
A) sulfuric acid thermal decomposition is at high temperature generated sulfur trioxide gas;
B) sulfur trioxide is injected in the flue gas;
C) by electric cleaner the flue gas that sprays into sulfur trioxide is carried out dedusting.
As preferably, describedly a) will earlier sulfuric acid be atomized before the sulfuric acid thermal decomposition.
As preferably, described a) is that sulfuric acid thermal decomposition under the high temperature of hot-air is generated sulfur trioxide gas, and the temperature of described hot-air is more than 345 ℃.
As preferably, the temperature of described sulfur trioxide gas is more than 345 ℃.
As preferably, described hot-air adopts electrical heating and utilizes boiler afterheat to heat.
The invention provides a kind of sulfur trioxide flue gas conditioning system and method, can utilize the high temperature action of hot-air sulfuric acid to be resolved into the gaseous mixture of sulfur trioxide and steam, gaseous mixture is injected in the flue gas by the injector that is arranged in the electric cleaner inlet flue duct then, sulfur trioxide combines with moisture in the flue gas and generates the sulfuric acid aerosol and be adsorbed on the dust surface, reduce dust specific resistance, thereby improve the efficiency of dust collection of electric cleaner.Compare simplyr with traditional sulfur trioxide hardening and tempering process, good economy performance is improved the efficient height to electric cleaner.
Description of drawings
Fig. 1 is sulfuric acid pyrolysis oven structural representation that the specific embodiment of the invention provided;
Fig. 2 is sulfuric acid pyrolysismethod sulfur trioxide flue gas conditioning system flow chart that the specific embodiment of the invention provided.
The specific embodiment
In order further to understand the present invention, below in conjunction with embodiment the preferred embodiment of the invention is described, but should be appreciated that these describe just to further specifying the features and advantages of the present invention, rather than to the restriction of claim of the present invention.
Comprise the sulfuric acid pyrolysis oven that the sulfuric acid pyrolysis can be become sulfur trioxide in the sulfur trioxide flue gas conditioning of the present invention system, sulfuric acid pyrolysis oven structure can be with reference to figure 1, and Fig. 1 is sulfuric acid pyrolysis oven structural representation that the specific embodiment of the invention provided.The sulfuric acid pyrolysis oven comprises two-layer housing, and outer casing 31 and internal layer shell 32 form cavity between the two-layer housing, and the upper end of internal layer shell is uncovered; Also be provided with sulfuric acid inlet pipe 331 and mixed gas outlet 34 on the sulfuric acid pyrolysis oven, all run through outer casing 31 and internal layer shell 32, be positioned at the outer casing bottom and be provided with hot-air inlets 35.
Pyrolysis oven also is provided with compressed air inlet pipe 332 and runs through outer casing 31 and internal layer shell 32, and sulfuric acid inlet pipe 331 converges in the end after entering internal layer shell with compressed air hose 332, and merging end is equipped with atomizer 333.Sulfuric acid is entered by sulfuric acid inlet pipe 331, compressed air is entered by compressed air inlet pipe 332, at atomizer 333 places, sulfuric acid is under compressed-air actuated effect, fully atomize and spray in the sulfuric acid pyrolysis oven, sulfuric acid specific area after atomizing is bigger, and hot-air is fully mixed with sulfuric acid, helps the pyrolysis of sulfuric acid.
Hot-air enters cavity between outer casing 31 and the internal layer shell 32 by hot-air inlets 35, flow from bottom to top, preheating internal layer shell 32, behind the uncovered inflow internal layer shell 32 by internal layer shell 32 upper ends, flow from top to bottom again, be blended in the sufficient pyrolytic reaction of generation in the S shape pyrolysis passage with the atomizing sulfuric acid that is sprayed into by atomizer 333, generate the gaseous mixture of sulfur trioxide and steam, gaseous mixture is flowed out by mixed gas outlet 34 then.Hot-air inlets 35 also is provided with the hot air temperature checkout gear, and mixed gas outlet 34 also is provided with the mixture temperature checkout gear.
Sulfuric acid inlet pipe 331 and compressed air hose 332 can be located at the upper end of outer casing 31 and internal layer shell 32, and mixed gas outlet 34 is positioned at the lower end of outer casing 31 and internal layer shell 32, can make gas that the sufficiently long time of staying is arranged in internal layer shell like this.For reaching better effect, internal layer shell 32 inside also can be provided with multilayer insulating panel 36, dividing plate 36 every adjacent two layers are interlaced, and form S shape pyrolysis passage between the internal layer shell 32, passage has certain length, can guarantee that gas has 0.5 second～0.8 second the time of staying in internal layer shell 32, make sulfuric acid fully to decompose.
The cross-sectional constriction of internal layer shell 32 at atomizer 333 places also can be able to be seen as Fig. 1 in addition, be shunk the less sectional area in back and make that the air velocity at this place is the highest, hot-air with atomize after sulfuric acid can fully mix.
A kind of sulfur trioxide flue gas conditioning provided by the invention system, comprise the storage tank 1 that stores sulfuric acid, sulfuric acid conveying device, sulfuric acid pyrolysis oven 3, compressed-air actuated air compressor 4 be provided, provide the blower fan 5 of hot-air and air heating apparatus, injector 9 to sulfuric acid pyrolysis oven 3 to sulfuric acid pyrolysis oven 3, injector 9 is connected with the mixer outlet of sulfuric acid pyrolysis oven 3, and is arranged in the inlet flue duct of electric cleaner 10.In this system, sulfuric acid generates the sulfur trioxide gaseous mixture by 3 thermal decompositions of sulfuric acid pyrolysis oven, gaseous mixture is injected in the inlet flue duct of electric cleaner 10 by injector 9 then, combine with moisture in the flue gas and to generate the sulfuric acid aerosol and be adsorbed on the dust surface, reduce dust specific resistance, improve the efficiency of dust collection of electric cleaner.
The sulfuric acid that is stored in the storage tank 1 is delivered to sulfuric acid pyrolysis oven 3 by the sulfuric acid conveying device, can be connected first valve 11 successively between concrete storage tank 1 and the sulfuric acid pyrolysis oven 3, sulfuric acid pump 21 is sulfuric acid conveying device, sulfuric acid temperature-detecting device 22, flowmeter 23, motor-driven valve 24, can monitor and flow is regulated the sulfuric acid temperature of carrying easily, carry out pyrolysis in the sulfuric acid inlet pipe 331 inflow sulfuric acid pyrolysis ovens 3 of sulfuric acid by sulfuric acid pyrolysis oven 3 then, sulfuric acid pump 21 also can adopt the flow of first frequency converter, 211 variable frequency regulating speed control sulfuric acid.
Compressed air can pass through air compressor 4, second valve 41 and pressure-detecting device 42 successively, enters sulfuric acid pyrolysis oven 3 by compressed air inlet pipe 332 again.
The air that blower fan 5 produces provides hot-air by air heating apparatus heating back to sulfuric acid pyrolysis oven 3.The flow proportion relation of the flow of sulfuric acid and hot-air, blower fan 5 preferred second frequency converters 51 that connect, the flow of hot-air is controlled in the variable ratio frequency changer speed governing.
Air heating apparatus can adopt two complete equipments respectively or simultaneously air to be heated.The tail gas that the boiler 7 of factory produces generally can pass through economizer 81 and air preheater 82 successively, enter electric cleaner 10 then, the first cover heater of the present invention utilizes boiler afterheat that air is heated, and between economizer 81 and air preheater 82 air heat coil pipe 83 is set.The air that is come out by blower fan 5 enters heat(ing) coil 83, utilizes the waste heat heating of boiler exhaust gas, and the outlet of heat(ing) coil 83 can be provided with the first hot air temperature checkout gear 84.
The second cover heater is an electric heater 6, be connected with blower fan 5, electric heater 6 outlets are provided with the second hot air temperature checkout gear 61, hot-air after the heating can enter sulfuric acid pyrolysis oven 3 separately, or according to optimal way of the present invention: at the outlet of the second hot air temperature checkout gear 61 the 3rd valve 62 of connecting, the 3rd valve 62 is in parallel with air heat coil pipe 83, connect on the air pipe line after the parallel connection thermal air flowmeter 63 and the 3rd hot air temperature checkout gear 64 insert the hot-air inlets 35 of sulfuric acid pyrolysis oven 3 then again.
When system moves, the preferential 83 pairs of air of air-coil that use heat, make full use of the waste heat of boiler exhaust gas, the temperature that enters the hot-air of sulfuric acid pyrolysis oven 3 preferably remains on more than 345 ℃, could guarantee the decomposition fully of sulfuric acid, when the temperature that provides when air heat coil pipe 83 is not high enough, electric heater 6 is started working, provide heat to add hot-air together, by regulating the temperature that the 3rd valve 62 can be regulated hot-air, as close the 3rd valve 62, then all hot-air passes through electric heater 6 and 83 twice heating of air heat coil pipe successively, and the temperature of acquisition is higher, along with the unlatching gradually of the 3rd valve 62, portion of air only through electric heater 6 heating once, and is low when the temperature ratio was closed the 3rd valve 62 after two parts hot-air therefore in parallel converged.Can save energy and guarantee that hot-air reaches sufficiently high temperature by two cover heaters like this.
The mixed gas outlet 34 of sulfuric acid pyrolysis oven 3 is in series with the first mixture temperature checkout gear 341, temperature to pyrogenous origin gaseous mixture detects, the temperature of sulfuric acid pyrolysis oven 3 to the gaseous mixture between the injector 9 remained on more than 345 ℃, generate sulfuric acid to avoid sulfur trioxide and steam that backward reaction takes place at low temperatures.
Gaseous mixture flows out sulfuric acid pyrolysis oven 3 backs and flows into the interior injector 9 of inlet flue duct that is arranged in electric cleaner 10, is injected into then in the electric cleaner 10.Injector 9 preferably also is provided with the second mixture temperature checkout gear 91, if it is longer that gaseous mixture enters the pipeline of injector 9, then gaseous mixture may lose more heat transfer, can monitor by the second mixture temperature checkout gear 91, and the obstruction of injector 9 also can cause the reduction of mixture temperature, can find in time by temperature detection whether injector 9 needs repairing.
Whole sulfur trioxide flue gas conditioning system can adopt the PLC control system, monitors each technological parameter in real time and controls technical process.
A kind of sulfur trioxide flue gas conditioning method provided by the invention may further comprise the steps:
A) sulfuric acid is delivered in the sulfuric acid pyrolysis oven 3, thermal decomposition generates the gaseous mixture of sulfur trioxide and steam under the effect of hot-air, atomizes earlier before the preferred thermal decomposition, and the sulfuric acid specific area after atomizing is bigger, hot-air is fully mixed with sulfuric acid, help the pyrolysis of sulfuric acid.The temperature of hot-air that enters sulfuric acid pyrolysis oven 3 is preferably more than 345 ℃, to guarantee that sulfuric acid can decompose fully.
The adding the thermal recovery electrical heating and utilize boiler afterheat heating of hot-air.Preferred use the boiler afterheat heating, when the temperature that provides when boiler afterheat is not high enough, start electrical heating, provide heat to add hot-air together, carry out adjustment by temperature detection.
The gaseous mixture that contains sulfur trioxide that b) will generate is injected in the flue gas by the injector in the electric cleaner inlet flue duct, the preferred temperature of gaseous mixture before entering injector generates sulfuric acid more than 345 ℃ to avoid sulfur trioxide and steam that backward reaction takes place at low temperatures.
C) flue gas that has injected sulfur trioxide enters electric cleaner and carries out dedusting, because sulfur trioxide combines with moisture in the flue gas, generate the sulfuric acid aerosol and be adsorbed on the dust surface, reduction dust surface ratio resistance, form the low resistivity surface channel, thereby improved the efficiency of dust collection of electric cleaner.
Sulfur trioxide hardening and tempering process provided by the invention generates sulfur trioxide with the sulfuric acid thermal decomposition under high temperature action, and utilizes the waste heat of boiler that heat is provided, and compares with solid sulphur system sulfur trioxide technology, and system is simpler, and economy is better.
More than a kind of sulfur trioxide flue gas conditioning system and method provided by the present invention is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. sulfur trioxide flue gas conditioning system, it is characterized in that, comprise: storage tank, sulfuric acid conveying device, sulfuric acid pyrolysis oven, compressed-air actuated air compressor is provided, provides the blower fan of hot-air and air heating apparatus, injector to described sulfuric acid pyrolysis oven to described sulfuric acid pyrolysis oven, described injector is connected with described sulfuric acid pyrolysis oven, and is arranged in the inlet flue duct of electric cleaner.
2. sulfur trioxide flue gas conditioning according to claim 1 system is characterized in that, described air heating apparatus comprise electric heater and be arranged on economizer and air preheater between the air heat coil pipe.
3. sulfur trioxide flue gas conditioning according to claim 2 system is characterized in that described economizer links to each other with boiler, and described air preheater communicates with the inlet flue duct of described electric cleaner, is provided with the air heat coil pipe between economizer and the air preheater.
4. sulfur trioxide flue gas conditioning according to claim 3 system is characterized in that described electric heater is in series with valve, and described valve is in parallel with described air heat coil pipe.
5. according to the described sulfur trioxide flue gas conditioning of claim 4 system, it is characterized in that the outlet of described air heat coil pipe is provided with the first hot air temperature checkout gear, the outlet of described electric heater is provided with the second hot air temperature checkout gear.
6. a sulfur trioxide flue gas conditioning method is characterized in that, may further comprise the steps:
A) sulfuric acid thermal decomposition is at high temperature generated sulfur trioxide gas;
B) sulfur trioxide is injected in the flue gas;
C) by electric cleaner the flue gas that sprays into sulfur trioxide is carried out dedusting.
7. sulfur trioxide flue gas conditioning method according to claim 6 is characterized in that, described a) will be before the sulfuric acid thermal decomposition earlier sulfuric acid the atomizing.
8. according to claim 6 or 7 described sulfur trioxide flue gas conditioning methods, it is characterized in that described a) is that sulfuric acid thermal decomposition under the high temperature of hot-air is generated sulfur trioxide gas, the temperature of described hot-air is more than 345 ℃.
9. sulfur trioxide flue gas conditioning method according to claim 8 is characterized in that the temperature of described sulfur trioxide gas is more than 345 ℃.
10. sulfur trioxide flue gas conditioning method according to claim 8 is characterized in that, described hot-air adopts electrical heating and utilizes the boiler afterheat heating.
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| CN 201110109663 CN102225365B (en) | 2011-04-27 | 2011-04-27 | System and method for modulating flue gas with sulfur trioxide |
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| CN 201110109663 CN102225365B (en) | 2011-04-27 | 2011-04-27 | System and method for modulating flue gas with sulfur trioxide |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007744A (en) * | 2012-12-18 | 2013-04-03 | 武汉大学 | Electro-catalytic real-time flue gas conditioning system and method |
| CN103007745A (en) * | 2012-12-18 | 2013-04-03 | 武汉大学 | Electro-catalytic on-line flue gas conditioning system and method |
| CN104390472A (en) * | 2014-09-26 | 2015-03-04 | 上海激光电源设备有限责任公司 | Tempering method and tempering device for electrically dedusting smoke by adopting low-temperature waste heat boiler |
| CN105066158A (en) * | 2015-09-18 | 2015-11-18 | 福建龙净环保股份有限公司 | Sulfur trioxide flue gas tempering system |
| CN105498974A (en) * | 2015-12-01 | 2016-04-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Auxiliary device for electric dust remover and flue gas dust removal system |
| CN106118696A (en) * | 2016-07-11 | 2016-11-16 | 神木县三江煤化工有限责任公司 | A kind of device and method controlling gas retort air inlet |
| CN108187910A (en) * | 2017-12-20 | 2018-06-22 | 中国神华能源股份有限公司 | The method of flue gas ash removal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722178A (en) * | 1971-06-24 | 1973-03-27 | H Aaland | Sulfur trioxide vapor for dust conditioning |
| CN1080381A (en) * | 1992-06-18 | 1994-01-05 | 剑米索恩公司 | The control method of flue gas |
| US5449390A (en) * | 1994-03-08 | 1995-09-12 | Wilhelm Environmental Technologies, Inc. | Flue gas conditioning system using vaporized sulfuric acid |
-
2011
- 2011-04-27 CN CN 201110109663 patent/CN102225365B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3722178A (en) * | 1971-06-24 | 1973-03-27 | H Aaland | Sulfur trioxide vapor for dust conditioning |
| CN1080381A (en) * | 1992-06-18 | 1994-01-05 | 剑米索恩公司 | The control method of flue gas |
| US5449390A (en) * | 1994-03-08 | 1995-09-12 | Wilhelm Environmental Technologies, Inc. | Flue gas conditioning system using vaporized sulfuric acid |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103007744A (en) * | 2012-12-18 | 2013-04-03 | 武汉大学 | Electro-catalytic real-time flue gas conditioning system and method |
| CN103007745A (en) * | 2012-12-18 | 2013-04-03 | 武汉大学 | Electro-catalytic on-line flue gas conditioning system and method |
| CN104390472A (en) * | 2014-09-26 | 2015-03-04 | 上海激光电源设备有限责任公司 | Tempering method and tempering device for electrically dedusting smoke by adopting low-temperature waste heat boiler |
| CN105066158A (en) * | 2015-09-18 | 2015-11-18 | 福建龙净环保股份有限公司 | Sulfur trioxide flue gas tempering system |
| CN105498974A (en) * | 2015-12-01 | 2016-04-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Auxiliary device for electric dust remover and flue gas dust removal system |
| CN106118696A (en) * | 2016-07-11 | 2016-11-16 | 神木县三江煤化工有限责任公司 | A kind of device and method controlling gas retort air inlet |
| CN108187910A (en) * | 2017-12-20 | 2018-06-22 | 中国神华能源股份有限公司 | The method of flue gas ash removal |
| CN108187910B (en) * | 2017-12-20 | 2020-05-19 | 中国神华能源股份有限公司 | Flue gas dust removal method |
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