CN105233660B - A kind of processing method of coke oven flue gas processing system - Google Patents
A kind of processing method of coke oven flue gas processing system Download PDFInfo
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Abstract
A kind of coke oven flue gas processing system and its processing method.There is provided a kind of at utmost drop sheet, a kind of coke oven flue gas processing system and its processing method of synergy.The system of the present invention includes coke oven flue gas import, absorption tower, clean flue gas outlet, and the coke oven flue gas import is located in the middle part of the absorption tower, and the clean flue gas outlet is located at the top of absorption tower, is additionally provided with the absorption tower：Absorption spray section in the coke oven flue gas import top, in absorbing spray section top and the washing demisting section positioned at clean flue gas outlet bottom, the slurry tank in the accommodating absorbing liquid in the coke oven flue gas import bottom；Provided with absorption spray loop, ferrous iron solution supplementary loop and ammoniacal liquor supplementary loop in the slurry tank.Small investment of the present invention, energy consumption are low, operating cost is low, process system mature and reliable, and desulfuration efficiency is up to more than 95%, meets environmental requirement.
Description
Technical field
The invention belongs to field of Environment Protection, it is related to sulfur-bearing, the cleaning treatment system of smoke of gunpowder gas and its processing method, more particularly to one
The sulfur-bearing discharged to coke-oven plant's coke oven, the sulfur method of smoke of gunpowder gas are planted, ammonia process low temperature coke oven flue gas one-step desulfurization is referred specifically to
Denitrating system and its technique.
Background technology
Sulfur dioxide is to weigh the important symbol whether air is polluted, and is the key factor of air pollution, especially
Cause " arch-criminal " of Acid Rain Pollution.Sulfur dioxide main source has combustion of sulfurous fuel, melting sulfide ore, fires sulphur
It is sulphur, manufacture sulfuric acid and sulfurous acid, vulcanization rubber, refrigeration, bleaching, sterilization, fumigant insect killing, Smelting magnesium, petroleum refining, some organic
The operating modes such as synthesis.With the fast development of China's economic scale, it is primarily appointing for China's air environmental protection that sulfur dioxide pollution, which is administered,
Business.
External flue gas desulfurization research is started from 1850, by development for many years, up to now, is covered in the world 2500 more
FGD (Flue gas desulfurization) device, total capacity reaches 200000MW (in terms of the generating capacity of power plant), processing
Exhaust gas volumn 700Mm3/ h, 1 year can the nearly 10MT of removal sulfur dioxide, these devices 90% the U.S., Japan and Germany.Although each
The FGD methods of state's exploitation are a lot, but the real method for carrying out commercial Application is only that limited ten are several.
Coke-oven plant of the country is Dual alkali using more business FGD techniques at present, but this sulfur removal technology is existed and is difficult to
Tower problem is blocked up in the crystallization overcome, it is impossible to long-term Effec-tive Function, and the problems such as reluctant calcium sulfate accessory substance, is produced newly
Pollution.
The problem of in order to solve above-mentioned dual alkali scrubbing FGD process, the B of patent CN 101549250 propose a kind of double alkali of suppression
The method of effective desulfurization catalytic oxidation in method flue gas desulfurization glue size, but do not solve the above problems fundamentally, simply prolong
The time of slow above mentioned problem outburst, and add operation operation difficulty and cost.
Ammonia type flue gas desulfurizing has been applied in power plant coal-burning boiler at present, but there is no the successful fortune in coke-oven plant at present
With.
For gas denitrifying technology, the example of commercialization successful operation at present is mainly two kinds of SCR and SNCR.For preceding
Person, major defect be catalyst be easily poisoned, NH_3 leakage and investment cost and operating cost it is too high, useful ammonia is converted into nothing
N2, process is uneconomical；For the latter, the denitrating flue gas under high oxygen concentration atmosphere is not appropriate for.
To solve denitrating flue gas problem, a variety of solutions are proposed both at home and abroad, and its Patent CN101053747A is proposed
A kind of utilization strong oxidizer aoxidizes NO in advance, the scheme for recycling ammoniacal liquor to be absorbed, this scheme need to consume substantial amounts of ozone,
The oxidants such as hydrogen peroxide, process is very uneconomical.
Therefore, a kind of reliable, efficient, coke-oven plant's flue gas desulfurization and denitrification Processing tecchnics without secondary pollution are developed to current
Air contaminant treatment have great significance.
The content of the invention
There is provided a kind of at utmost drop sheet, a kind of coke oven flue gas processing system of synergy for problem above by the present invention
Processing method.
The technical scheme is that：
A kind of coke oven flue gas processing system, including coke oven flue gas import, absorption tower, clean flue gas outlet, the coke oven
Gas approach is located in the middle part of the absorption tower, and the clean flue gas outlet is located at the top of absorption tower, in the absorption tower also
It is provided with：
Absorption spray section in the coke oven flue gas import top,
In absorb spray section top and washing demisting section positioned at clean flue gas outlet bottom,
The slurry tank of absorbing liquid is housed in the coke oven flue gas import bottom；
Provided with absorption spray loop, ferrous iron solution supplementary loop and ammoniacal liquor supplementary loop in the slurry tank；It is described to absorb
Spray circuit communication slurry tank and absorb spray section, the inlet of the ferrous supplementary loop is located at the top of slurry tank, described
The inlet of ammoniacal liquor supplementary loop is located at the bottom of slurry tank.
The front portion of coke oven flue gas import is provided with heat recovery boiler and air-introduced machine, for residual heat collection and reduction flue gas temperature
Degree.
Slurry agitating device is provided with the slurry tank bottom, the slurry agitating device is liquid flow type agitating device or machine
Tool formula agitating device.
At least two layers spraying layer is set in the absorption spray section, wherein, most descend spraying layer to spray vaporific slurries, most upper spray
Layer sprays cascade shape slurries.
In the ferrous iron solution supplementary loop be provided with slurries regenerative circuit, the slurries regenerative circuit include regeneration pump,
Millipore filter and regenerator, the outlet of the regenerator are attempted by the ferrous iron solution supplementary loop.
A kind of processing method of coke oven flue gas processing system,
First, absorption tower slurries are prepared, clear water is added to absorption tower slurry tank, 12%~18% ammoniacal liquor, addition is added
20% complexing ferrous salt so that plasm PH value maintains 5.0~6.9, while so that ferrous ion concentration be 0.028%~
0.5%；
Then handle according to the following steps,
1), flue gas cool-down；300 DEG C of coke oven flue gas are introduced into afterheat boiler system by air-introduced machine and carry out heat recovery, drop
Temperature obtains the inlet flue gas comprising sulfur dioxide and NOx to 160~190 DEG C；
2), desulphurization denitration；Inlet flue gas is passed through absorption tower, will by the technique shower water for being arranged on coke oven flue gas import
Inlet flue gas is cooled to 60~90 DEG C；Inlet flue gas is up immediately, absorbs two in the slurries absorption inlet flue gas that spray section sprays
Sulfur oxide, NOx, the water of washing demisting section absorb flue dust in inlet flue gas, flow into slurry tank, and inlet flue gas obtains clean after absorption
Flue gas, is discharged through clean flue gas outlet；
With the progress of desulphurization denitration, main component and its content in slurry tank are：Ferrous sulfate 0.08%~
1.35%th, ammonium sulfite 1%~5%, ammonium sulfate 10%~30%；
Serum density reaches 1.1~1.2g/mm in slurry tank3When, it is expelled to slurries regenerative circuit；
Empty tower gas velocity is 2.5~3.5m/s, and the ratio between absorbing liquid summation volume and exhaust gas volumn volume are 1.5~5L/m3, absorb
The total sprinkle density of liquid is 20~35m3/(m2H), exhaust emissions is up to state standards, SO2Up to 50mg/N.m3Hereinafter, NOx can
Up to 150mg/N.m3Below.
When serum density reaches 1.1~1.2g/mm3When, extract fraction slurries and drain into sulphur ammonium system of processing, isolate sulphur ammonium
Absorbing liquid afterwards delivers to absorption tower slurry tank again.
Inlet flue gas is cooled to 50~60 DEG C by the technique shower water, and slurry temperature is less than 60 DEG C in slurry tank, protects
Ammonium sulfite in card absorbing liquid will not be decomposed.
The activated carbon of catalyst is further comprised as in the slurries.
Described sulphur ammonium system of processing includes crystallization tank, centrifuge, fluid bed vibrating dryer, sulphur ammonium hopper, whirlwind point
From device, fan heater and blower fan.
Compared with other flue gas managing techniques applied at present, the present invention has advantages below：
1) step of the invention absorbs sulphur nitre, reduced investment；2) desulfurization denitrification agent is renewable recycles, and operation cost is low；3)
The present invention is completely absent the stifled tower problem of crystallization, can the operation of long-time continuous high-efficient；4) byproduct is ammonium sulfate, realizes desulfurization
The recycling operation of product, thoroughly solves the problems, such as secondary pollution.To sum up, this technology investment is few, energy consumption is low, operating cost is low,
Process system mature and reliable, desulfuration efficiency is up to more than 95%.Meet environmental requirement.
Brief description of the drawings
Fig. 1 is the structural representation of processing system of the present invention,
Fig. 2 is the process chart of the present invention,
Fig. 3 is the structural representation of sulphur ammonium system of processing in the present invention；
1 is absorption tower in figure, and 2 be absorbing liquid circulating pump one, and 3 be absorbing liquid circulating pump two, and 4 be absorbing liquid circulating pump three, 5
It is to absorb spray section, 6 be washing demisting section, and 7 be slurry tank, and 8 be slurry agitating device, and 9 be slurries regenerative circuit, and 10 be regeneration
Pump, 11 be millipore filter, and 12 be regenerator, and 13 be ferrous iron solution supplementary loop.
Embodiment
The coke oven flue gas processing system of the present invention, as shown in figure 1, including coke oven flue gas import, absorption tower 1, clean flue gas
Outlet (i.e. chimney in Fig. 1), the coke oven flue gas import is located at the middle part of absorption tower 1, and the clean flue gas outlet is set
Top on absorption tower 1, is additionally provided with the absorption tower 1：
Absorption spray section 5 in the coke oven flue gas import top,
In absorb the top of spray section 5 and washing demisting section 6 positioned at clean flue gas outlet bottom,
The slurry tank 7 of absorbing liquid is housed in the coke oven flue gas import bottom；
In the slurry tank 7 provided with absorb spray loop (i.e. comprising absorbing liquid circulating pump 1, absorbing liquid circulating pump 23,
Three circulation loops of absorbing liquid circulating pump 3 4), ferrous iron solution supplementary loop 13 and ammoniacal liquor supplementary loop；It is described to absorb spray
Circuit communication slurry tank 7 and absorption spray section 5, the inlet of the ferrous supplementary loop are located at the top of slurry tank 7, the ammonia
The inlet of water supplementary loop is located at the bottom of slurry tank 7.
The front portion of coke oven flue gas import is provided with heat recovery boiler and air-introduced machine, for residual heat collection and reduction flue gas temperature
Degree.
Slurry agitating device 8 is provided with the bottom of slurry tank 7, the slurry agitating device 8 is liquid flow type agitating device
Or mechanical agitating device.
At least two layers spraying layer is set in the absorption spray section 5, wherein, most descend spraying layer to spray vaporific slurries, most upper spray
Drenching layer sprays cascade shape slurries.Spraying layer is most descended, in 0~10 ° of angle, downwards, to be sufficiently mixed with horizontal direction with flue gas；It is most upper
Spraying layer is in 0~10 ° of angle with horizontal direction, upwards, further while processing flue gas, it is to avoid liquid mist is up.
Slurries regenerative circuit 9 is provided with the ferrous iron solution supplementary loop 13, the slurries regenerative circuit 9 includes regeneration
Pump 10, millipore filter 11 and regenerator 12, the outlet of the regenerator 12 are attempted by the ferrous iron solution supplementary loop 13.
Regeneration pump 10 extracts slurries out, delivers to regenerative system；Filter uses millipore filter 11, can remove the dust in flue gas,
Ensure ammonium sulfate products quality and the effect of regeneration of absorption solution；Regenerator 12 be in order to by absorbing liquid without denitration ability trivalent
Molysite is reduced to the divalent iron salt of denitration ability in the presence of catalyst by inferior sulfate radical, while obtaining sulfate radical.Such as Fig. 3
It is shown.
A kind of processing method of coke oven flue gas processing system of the present invention, as shown in Figure 1, 2,
First, absorption tower slurries are prepared, clear water is added into absorption tower slurry tank, 12%~18% ammoniacal liquor is added, adds
Enter 20% complexing ferrous salt so that plasm PH value maintains 5.0~6.9, while so that ferrous ion concentration be 0.028%~
0.5%；
Then handle according to the following steps,
1), flue gas cool-down；(300 DEG C) coke oven flue gas is introduced into afterheat boiler system by air-introduced machine and carries out heat recovery,
160~190 DEG C are cooled to, the inlet flue gas comprising sulfur dioxide and NOx is obtained；
2), desulphurization denitration；Inlet flue gas is passed through absorption tower, will by the technique shower water for being arranged on coke oven flue gas import
Inlet flue gas is cooled to 60~90 DEG C；Inlet flue gas is up immediately, absorbs two in the slurries absorption inlet flue gas that spray section 5 sprays
Sulfur oxide, NOx, the water of washing demisting section absorb flue dust in inlet flue gas, flow into slurry tank, and inlet flue gas obtains clean after absorption
Flue gas, is discharged through clean flue gas outlet；
With the progress of desulphurization denitration, main component and its content in slurry tank are：Ferrous sulfate 0.08%~
1.35%th, ammonium sulfite 1%~5%, ammonium sulfate 10%~30%；
When absorbing liquid proportion reaches 1.1~1.2, part (continuously or discontinuously extracting 4%~10% daily) slurries are extracted
Sulphur ammonium system of processing is drained into, the absorbing liquid after sulphur ammonium is isolated and delivers to absorption tower slurry tank again.
Empty tower gas velocity is 2.5~3.5m/s, and the ratio between absorbing liquid summation volume and exhaust gas volumn volume are 1.5~5L/m3, absorb
The total sprinkle density of liquid is 20~35m3/(m2H), exhaust emissions is up to state standards, SO2Up to 50mg/N.m3Hereinafter, NOx can
Up to 150mg/N.m3Below.
When serum density reaches 1.1~1.2 in slurry tank, slurries regenerative circuit is expelled to.
Inlet flue gas is cooled to 50~60 DEG C by the technique shower water, and slurry temperature is less than 60 DEG C in slurry tank, protects
Ammonium sulfite in card absorbing liquid will not be decomposed.
The activated carbon of catalyst is further comprised as in the slurries, activated carbon can use active fruit shell carbon, addition root
Selected, the generally 5m according to vent gas treatment scale3~15m3。
Described sulphur ammonium system of processing includes crystallization tank, centrifuge, fluid bed vibrating dryer, sulphur ammonium hopper, whirlwind point
From device, fan heater and blower fan.
The present invention concrete technology flow process and operation principle be：
Flue gas is come out from coke oven flue, enters residual neat recovering system by air-introduced machine, and the suction of desulphurization system is entered after cooling
The gas approach in the middle part of tower is received, is run up after process water spraying cooling, successively with three layers of absorbing liquid spraying layer counter current contacting,
Generation desulfurization and denitrification reaction, afterwards neat stress continue up operation, by absorption tower catch mist layer after discharge；And three layers of doctor solution exist
The slurry tank for absorbing tower bottom is fallen under Action of Gravity Field, with being passed through after desulfurization denitrification agent therein is sufficiently mixed, then passes through tower
Outer circulation pipeline delivers to absorbing liquid at three layers of absorbing liquid mouth spray；Absorbing liquid continuous and quantitative is filtered by millipore filter, than
Quantitatively outer when meeting the requirements again to drain into sulphur ammonium system of processing, remaining absorbing liquid enters desulfurization denitrification agent regenerator, has been regenerated as suction
The absorbing liquid of accepting orders for repairs or processing property, returns to absorption tower slurry tank afterwards；With system operation, the density in absorption tower bottom slurry pond can be gradually
Rise, treat that it rises to a certain degree, be expelled to sulphur ammonium system of processing, obtain sulphur ammonium finished product, solution sends absorption tower back to.
Wherein, the pH value of doctor solution is 5.0~6.5 in slurry pool, the spray volume of doctor solution spraying layer always and flue gas body
The ratio between product is 1.5~5L/m3, the total sprinkle density of absorbing liquid is 20~35m3/(m2·h)。
Desulfurization denitrification agent is used and is composited by various ingredients such as iron compound (Fe (II)-L) and ammonium sulfurous, wherein sulfurous
Ammonium is ammonia absorption SO2After generate.Regenerator catalyst is activated carbon.
In order to which the ammonium sulfite ensured in absorbing liquid will not be decomposed, the reaction temperature of this flue gas managing technique is further optimized
Spend for 50~60 DEG C.
When slurry pool proportion reaches 1.1~1.2, sulphur ammonium system of processing is expelled to, the order of connection of sulphur ammonium system of processing is
Crystallization tank, centrifuge, conveying worm and fluid bed vibration drier, obtain finished product sulphur ammonium.
The desulphurization system of ammonia process coke oven flue gas sulfur removal technology of the present invention mainly includes four steps：Sulphur nitre absorbs, slurry
Liquid regeneration, slurries stirring and washing demisting.The concrete principle of each step is as follows：
1), sulphur nitre absorbs
Fe (II)-L, which has, absorbs NO abilities, and NO is transferred into liquid phase by gas phase：
Make the SO in absorbent absorption waste gas with ammoniacal liquor2, because ammonia is volatile, actually this method is to use ammoniacal liquor and SO2Reaction
The sulfurous aqueous ammonium generated afterwards is used as absorption SO2Absorbent, key reaction is as follows：
(NH4)2SO3+SO2+H2O→2NH4HSO3 (2)
It is passed through the regenerative response after ammonia：
NH4HSO3+NH3→(NH4)2SO3 (3)
SO2Reducing agent can be made by absorbing the inferior sulfate radical produced, be urged in the liquid phase with Fe (II)-L (NO) NO being complexed
Change reduction reaction, NO is reduced to harmless N2, so as to reach the purpose for administering NO：
2), slurries regenerate
Due to there is substantial amounts of oxygen in waste gas, Fe (II)-L is easily oxidized as trivalent iron salt, and trivalent iron salt can not
It with reference to NO, can decline the ability that absorbent removes NO.Therefore Fe (III)-L must be regenerated, the method for use is to use
Inferior sulfate radical makees reducing agent, in the presence of catalyst, and Fe (III)-L is reduced into Fe (II)-L：
Fe(II)+L→Fe(II)-L (9)
Due to containing imperfect combustion oxygen in flue gas, " pair " reaction generation is had during spray,
The net reaction of whole simultaneous SO_2 and NO removal process is as follows:
Therefore, it is by NO and SO in this simultaneous SO_2 and NO removal method2Redox reaction coupling each other
Close to realize desulphurization denitration, NO reduction is changed into N2, SO2Sulfate radical is oxidized to, and is combined with ammonia, producing ammonium sulfate byproduct makees agrochemical,
Turn waste into wealth.Absorbent is recycled, and treatment cost is substantially reduced, and no waste water is produced.
3), slurries are stirred
Slurries are stirred by suspension pulser, it is ensured that desulfurization denitrification agent and slurries are well mixed, it is to avoid slurries
The presence in pond dead band, prevents that ammonium sulfate crystallization from depositing.
4) demisting, is washed
The ammonia and liquid carried secretly in washing demisting, removing flue gas are carried out to the flue gas after cooling sprinkling and desulfurization absorb
Drop, it is to avoid the generation of aerosol, it is ensured that the qualified discharge of flue gas.
Claims (9)
1. a kind of processing method of coke oven flue gas processing system, the coke oven flue gas processing system includes coke oven flue gas import, inhaled
Tower, clean flue gas outlet are received, the coke oven flue gas import is located in the middle part of the absorption tower, and the clean flue gas outlet is located at
At the top of absorption tower, it is additionally provided with the absorption tower：Absorption spray section in the coke oven flue gas import top, in absorption
Spray section top and washing demisting section positioned at clean flue gas outlet bottom, inhale in the coke oven flue gas import bottom is accommodating
Receive the slurry tank of liquid；Provided with absorption spray loop, ferrous iron solution supplementary loop and ammoniacal liquor supplementary loop in the slurry tank；It is described
Absorb spray circuit communication slurry tank and absorb spray section, the inlet of the ferrous supplementary loop is located at the top of slurry tank,
The inlet of the ammoniacal liquor supplementary loop is located at the bottom of slurry tank, it is characterised in that the processing method is：
First, absorption tower slurries are prepared, clear water is added to absorption tower slurry tank, 12%~18% ammoniacal liquor is added, adds 20%
Ferrous salt is complexed so that plasm PH value maintains 5.0~6.9, while so that ferrous ion concentration is 0.028%~0.5%；
Then handle according to the following steps,
1), flue gas cool-down；300 DEG C of coke oven flue gas are introduced into afterheat boiler system by air-introduced machine and carry out heat recovery, are cooled to
160~190 DEG C, obtain the inlet flue gas comprising sulfur dioxide and NOx；
2), desulphurization denitration；Inlet flue gas is passed through absorption tower, by being arranged on the technique shower water of coke oven flue gas import by entrance
Flue gas cool-down is to 60~90 DEG C；Inlet flue gas is up immediately, absorbs titanium dioxide in the slurries absorption inlet flue gas that spray section sprays
Sulphur, NOx, the water of washing demisting section absorb flue dust in inlet flue gas, flow into slurry tank, and inlet flue gas obtains clean cigarette after absorption
Gas, is discharged through clean flue gas outlet；
With the progress of desulphurization denitration, main component and its content in slurry tank are：Ferrous sulfate 0.08%~1.35%, Asia
Ammonium sulfate 1%~5%, ammonium sulfate 10%~30%；
Serum density reaches 1.1~1.2g/mm in slurry tank3When, it is expelled to slurries regenerative circuit；
Empty tower gas velocity is 2.5~3.5m/s, and the ratio between absorbing liquid summation volume and exhaust gas volumn volume are 1.5~5L/m3, absorbing liquid is total
Sprinkle density is 20~35m3/(m2H), exhaust emissions is up to state standards, SO2Up to 50mg/N.m3Hereinafter, NOx is reachable
150mg/N.m3Below.
2. the processing method of a kind of coke oven flue gas processing system according to claim 1, it is characterised in that coke oven flue gas enters
The front portion of mouth is provided with heat recovery boiler and air-introduced machine, for residual heat collection and reduction flue-gas temperature.
3. the processing method of a kind of coke oven flue gas processing system according to claim 1, it is characterised in that in the slurries
Groove bottom is provided with slurry agitating device, and the slurry agitating device is liquid flow type agitating device or mechanical agitating device.
4. a kind of processing method of coke oven flue gas processing system according to claim 1, it is characterised in that the absorption spray
Drench in section and set at least two layers spraying layer, wherein, most descend spraying layer to spray vaporific slurries, most upper spraying layer sprays cascade shape slurries.
5. the processing method of a kind of coke oven flue gas processing system according to claim 1, it is characterised in that in the ferrous iron
Solution supplementary loop is provided with slurries regenerative circuit, and the slurries regenerative circuit includes regeneration pump, millipore filter and regenerator,
The outlet of the regenerator is attempted by the ferrous iron solution supplementary loop.
6. the processing method of a kind of coke oven flue gas processing system according to claim 1, it is characterised in that work as serum density
Reach 1.1~1.2g/mm3When, extract fraction slurries and drain into sulphur ammonium system of processing, isolate the absorbing liquid after sulphur ammonium and deliver to again
Absorption tower slurry tank.
7. a kind of processing method of coke oven flue gas processing system according to claim 1, it is characterised in that the technique spray
Inlet flue gas is cooled to 50~60 DEG C by water drenching, and slurry temperature is less than 60 DEG C in slurry tank, it is ensured that the sulfurous acid in absorbing liquid
Ammonium will not be decomposed.
8. the processing method of a kind of coke oven flue gas processing system according to claim 1, it is characterised in that in the slurries
Further comprise as the activated carbon of catalyst.
9. a kind of processing method of coke oven flue gas processing system according to claim 1, it is characterised in that described sulphur ammonium
System of processing includes crystallization tank, centrifuge, fluid bed vibrating dryer, sulphur ammonium hopper, cyclone separator, fan heater and wind
Machine.
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| CN107398165B (en) * | 2017-08-10 | 2020-10-20 | 上海博丹环境工程技术股份有限公司 | Desulfurization and denitrification process for boiler flue gas |
| CN108722053A (en) * | 2018-05-29 | 2018-11-02 | 邢明 | A kind of boiler exhaust gas processing method |
| CN110538540A (en) * | 2019-09-26 | 2019-12-06 | 南京蓝胜环保科技有限公司 | Water curtain type dust and ammonia removing system and process applying urea granulation tail gas |
| CN110841440A (en) * | 2019-12-11 | 2020-02-28 | 陕西黑猫焦化股份有限公司 | Coke oven flue gas desulfurization equipment and method |
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| CN102989306A (en) * | 2012-12-28 | 2013-03-27 | 武汉钢铁(集团)公司 | Flue gas ammonia desulfurization and deslagging system |
| CN103230733A (en) * | 2013-04-17 | 2013-08-07 | 中悦浦利莱环保科技有限公司 | Apparatus and process for flue gas desulfurization denitrification integration through liquid phase catalysis oxidation method |
| CN205019939U (en) * | 2015-10-13 | 2016-02-10 | 建业庆松集团有限公司 | Coke oven flue gas processing system |
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| JPS53124170A (en) * | 1976-10-15 | 1978-10-30 | Toushin Kasei Kk | Method of deodorization and apparatus for carrying out it |
| CN102989306A (en) * | 2012-12-28 | 2013-03-27 | 武汉钢铁(集团)公司 | Flue gas ammonia desulfurization and deslagging system |
| CN103230733A (en) * | 2013-04-17 | 2013-08-07 | 中悦浦利莱环保科技有限公司 | Apparatus and process for flue gas desulfurization denitrification integration through liquid phase catalysis oxidation method |
| CN205019939U (en) * | 2015-10-13 | 2016-02-10 | 建业庆松集团有限公司 | Coke oven flue gas processing system |
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