CN102658170A - Regeneration technology of V-Ti-based honeycomb SCR denitration catalyst, and apparatus thereof - Google Patents

Regeneration technology of V-Ti-based honeycomb SCR denitration catalyst, and apparatus thereof Download PDF

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CN102658170A
CN102658170A CN2012101038952A CN201210103895A CN102658170A CN 102658170 A CN102658170 A CN 102658170A CN 2012101038952 A CN2012101038952 A CN 2012101038952A CN 201210103895 A CN201210103895 A CN 201210103895A CN 102658170 A CN102658170 A CN 102658170A
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pond
ultrasonic cleaning
catalyst
hydraulic
technology
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CN2012101038952A
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CN102658170B (en
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惠世恩
王志鹏
高青
高振兴
赵帅
李文杰
赵钦欣
周屈兰
谭厚章
李娜
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西安交通大学
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Abstract

The invention discloses a regeneration technology of a V-Ti-based honeycomb SCR denitration catalyst, and an apparatus thereof. A deactivated catalyst in the technology is regenerated through steps of pressurized water spraying, ultrasonic cleaning, secondary pressurized water spraying, air blow drying, active component supplement, secondary air blow drying, step calcining, and the like. Parameters of the regeneration technology, which comprise components of a cleaning solution, a pickling solution and an active supplement solution, are provided. By adopting the technology, the denitration activity of the deactivated catalyst is recovered, the structural strength of the catalyst is maintained, and the SO2 oxidation frequency is reduced. The apparatus used for realizing the technology comprises a pressurized water spraying pool, an ultrasonic cleaning pool, a secondary pressurized water spraying pool, a pickling pool, an air blow drying pool, an active component supplement pool, a secondary air blow drying pool, a calciner and the like which are sequentially arranged, and the device can realize the hoisting transport regeneration of a regeneration module, and has the characteristics of simplicity, convenient operation, and high efficiency.

Description

Vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology and device
Technical field:
The present invention relates to the field of engineering technology of power plant's denitration and catalyst regeneration, be specifically related to a kind of technology and regenerating unit of realizing the cellular SCR of vanadium titanium base (SCR) the denitrating catalyst regeneration of deactivation.Be used to realize the regeneration of denitrating catalyst, the cost of save catalyst displacement.
Background technology:
China is to be the country of main energy sources with coal, and the main source of electric power is the direct burning of thermal power plant's coal.The pollutant of power plant emission comprises can suck solid particulate matter, carbon dioxide, sulfur dioxide and nitrogen oxide (NO x) etc., brought environmental problems such as greenhouse effects, acid rain, photochemical fog therefrom.Nitrogen oxide (NO wherein x) discharge capacity just reached 1,207 ten thousand tons the first half of the year in 2011.NO xOrgans such as people's glasses are had than the strong stimulation effect, also participate in the formation of acid rain and photochemical fog." thermal power plant's atmosphere pollutants emission standards " that on January 1st, 2012 came into effect is (GB13223-2011) to NO xDischarging has had strict more regulation: require the discharge capacity of part new power plant construction nitrogen oxide to be less than 100mg/m 3, do not reach will charging of discharge standard regulation according to " collection of drainage dues use and management regulations ".
NO xEmission control technique is divided into low NO xCombustion technology and gas denitrifying technology.SCR (SCR) denitration technology is to NO xRemoval effect remarkable, technology maturation is present most widely used gas denitrifying technology.In whole SCR denitrating system, catalyst is a core component, and the proportion that in the equipment direct investment, accounts for is bigger.Wherein using maximum is vanadium titanium base honeycomb-shaped SCR denitrating catalyst.The scheme that the catalyst module major part of SCR denitrating system takes high dirt to arrange; The denitration performance of operation a period of time rear catalyst can descend, and shows as that the reducing agent consumption increases, the oxygenation efficiency of sulfur dioxide rises, denitration efficiency descends, the resistance rising of denitrating system etc.Performance descends and causes when not reaching the denitration requirement, will change catalyst module.Catalyst under changing will be regenerated or be discarded, and discarded mode is generally handled according to danger wastes, and processing modes such as construction material are reclaimed and are used as in for example broken landfill, fusion.The price of considering denitrating catalyst is higher, if realize catalyst regeneration efficiently, will practice thrift the denitration cost greatly.
The SCR denitrating system is in service, and some material can little by little deposit at catalyst surface in the flue gas.The compound of elements such as alkali metal that wherein exists with aerosol form and arsenic can make the catalyst position that loses activity, and stops up, covers, reason such as erosion can make catalyst generation physics inactivation.Catalyst recovery process in the existing patent generally is to purge and wet dip two step pre-treatments through dry type, carries out processing such as active material load and drying again.Publication number is the device that the patent of CN101543974A has provided a cover regeneration, comprises the equipment that carries out compressed air purging, cleaning, activation etc.Publication number be the patent of CN1768953A provided a kind of flow to reach through bubbling wash out pollutant, recover the device of catalyst denitration activity.The patent No. is that the United States Patent (USP) of US 7741239 has provided the method for utilizing purging, cleaning agent flushing, alkaline salt bath to clean, to the denitrating catalyst of deactivation, especially because the technology that the phosphorus compound fouled catalyst cleans.The patent No. is that the United States Patent (USP) of US 7569506 has provided a kind of SCR denitrating catalyst that has risen to the SO2 oxygenation efficiency and carries out acid-treated technology.The patent No. is that the European patent of EP 06019991.6 has provided the SCR catalyst that alkali resistant metal and the alkaline-earth metal of metal oxide-superpower acidic group are poisoned, and the regeneration of alkali metal poisoning denitrating catalyst is had certain inspired significance.Publication number is the Chinese patent of CN 102266723A; Mainly provided a kind of technology that adopts autoclave in regenerative process, to carry out the catalyst reaming; But expanding agent that uses in this technology such as methyl alcohol etc. can cause secondary pollution; And realizing under the intensification condition that there is the hidden danger on the safety in release rapidly, and there are problems such as processing time length in this technology.Improve existing vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology in a word, exploitation is fit to the regenerating unit that the lifting transportation is produced, and important meaning is arranged.
Summary of the invention:
The present invention provides the technology of the vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration of deactivation, in cleaning process, improves the effect of cleaning, and accelerates washing speed.
1) technology that regeneration technology described in the present invention is that vanadium titanium base honeycomb-shaped SCR denitrating catalyst to deactivation carries out that pressure (hydraulic) water spray, ultrasonic cleaning, secondary pressure (hydraulic) water spray, pickling, forced air drying, active component replenish, secondary forced air drying, calcining etc. are handled.Described regenerating unit is to place devices such as first pressure (hydraulic) water spray pond, ultrasonic cleaning pond, second pressure (hydraulic) water spray pond, pickling tube, the first forced air drying pond, the additional pond of active component, the second forced air drying pond, calcining furnace successively.
2) catalyst honeycomb of regeneration is vertically placed (upper and lower surfaces the is the honeycomb face) lifting of packing into and form regeneration module in the support frame.First pressure (hydraulic) water spray is provided with rake formula spray equipment in the pond.The pressurization sand leaching water top-downly sprays to regeneration module through this device.The muzzle velocity that requires shower water is at 7~14m/s, according to the pollution level spray 3~10min of catalyst surface.
3) passed through 2) regeneration module handled, lifting gets in the ultrasonic waves for cleaning pond.The cleaning fluid of the honeycomb ceramics top 5~15cm that did not have regeneration module is housed in the ultrasonic cleaning pond.The composition of cleaning fluid is solubilizer (gather sorbic acid fat or polyoxyethylene fatty acid one or both) mass percent concentration 0~0.7 ‰; HPMA poly mass percentage concentration is 0~0.5 ‰; One or more regeneration module liftings in the JFC-2 fatty alcohol ethylene oxide condensate mass percent concentration 0~1 ‰ are cleaned; Bottom, ultrasonic cleaning pond is provided with support, prevents that regeneration module from touching at the bottom of the pond.In the bottom in ultrasonic cleaning pond a plurality of ultrasonic transducers are housed.The used supersonic frequency of ultrasonic cleaning is 15~32kHz, and the matching relationship of the power in ultrasonic power source and pond, ultrasonic cleaning pond floor space is 10~60kW/m 2The ultrasonic cleaning pond is provided with heater and discharge outlet at the bottom of the pond.The service sink lower sidewall is provided with water inlet, and top is provided with gap.The angle with certain that cleaning fluid continues during work is cut sth. askew and is injected service sink.Can play stirring and washing liquid, unnecessary cleaning fluid is discharged through the top gap.When carrying out ultrasonic cleaning, rinse liquid temperature is controlled at 20~45 ℃, will increase flow of inlet water when water temperature is too high or reduce the power in ultrasonic power source.
4) passed through 3) regeneration module handled, lifting gets in second pressure (hydraulic) water spray pond.Be provided with rake formula spray equipment in the spray pond.The pressurization deionized water top-downly sprays to regeneration module through this device.The muzzle velocity that requires shower water sprays 5~10min at 3~8m/s.With 1), 2), 3) combine, form pressure (hydraulic) water spray-ultrasonic cleaning equipment.
5) passed through 4) regeneration module handled, lifting gets into pickling tube, and the composition of pickle is in the pickling tube: the concentration of sulfuric acid is 7.84g/L~78.4g/L.Other adds gallic acid (mass percent concentration is 0~0.2 ‰) and oxalic acid (mass percent concentration is 0~0.4 ‰) one or more; The bubble generator that the pickling tube bottom has the glass sintering sheet to process; Can produce tiny bubble; These bubbles can be delivered to the composition that pickling on the catalyst is got off in the solution timely, and the pickling time is controlled at 10~30min.
6) passed through 5) regeneration module handled, send into the first forced air drying pond, dry pond temperature is made as 80~130 ℃, and be 10~30min drying time.
7) passed through 6) regeneration module handled, lifting gets into active component and replenishes the pond.Active component is housed in the pond replenishes liquid, composition is: the vanadic sulfate molar concentration is 0.05~0.15mol/L, and the ammonium metatungstate molar concentration is 0.1~0.2mol/L.Regulate the active pH value that replenishes liquid with sulfuric acid, pH value is controlled at 1.5~3.Active component is provided with oscillation device at the bottom of replenishing the pond, pond, and the bubble that produces in the solution when oscillation device can be with dipping is peeled off the wall of catalyst, is beneficial to active component and replenishes the even dipping of liquid on catalyst.
8) passed through 7) regeneration module handled, lifting gets into the second forced air drying pond, and the temperature in dry pond is made as 80~120 ℃, and be 10~30min drying time.
9) passed through 8) to handle, the catalyst of regeneration module is sent in the calcining furnace, and calcining furnace slowly heats up (5~10 ℃/min), finally calcine 30~90min 400~500 ℃ condition.
The invention has the beneficial effects as follows:
Vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology of the present invention and device can be realized the highly efficient regeneration of deactivation vanadium titanium base honeycombed catalyst.Compare the structural strength that to keep catalyst in this technology effectively with general regeneration technology, improve the surface appearance and the pore structure of catalyst, reduce the SO of catalyst effectively 2The oxidation inversion frequency.Device is simple, is fit to the regeneration production of lifting transportation, and efficient is high.The popularization of this technology can improve the performance of regeneration vanadium titanium base honeycomb-shaped SCR catalyst, and save catalyst displacement cost is to control NO xSignificant.
Description of drawings:
Fig. 1 is a vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology flow chart of the present invention.
Fig. 2 is a vanadium titanium base honeycomb-shaped SCR denitrating catalyst regenerating unit sketch of the present invention.
Fig. 3 is a ultrasonic cleaning pool structure sketch map in the vanadium titanium base honeycomb-shaped SCR denitrating catalyst regenerating unit of the present invention.
Mark among the figure: the regeneration module that 1-lifting frame and catalyst to be regenerated are formed, the 2-first pressure (hydraulic) water service sink, 3-ultrasonic cleaning pond, the 4-second pressure (hydraulic) water service sink, 5-pickling tube; The 6-first dry pond, the 7-active component replenishes the pond, the 8-second dry pond, 9-calcining furnace, 11-vanadium titanium base honeycombed catalyst module; The 12-lifting frame, the driving of 13-regeneration production line, 21-pressure (hydraulic) water nozzle, 22-rake formula spraying pressurized water shower device driving mechanism, 23-rake formula spraying pressurized water shower device; 24 pressure (hydraulic) water pipelines, 31 ultrasonic cleaning pond water inlets, 32 ultrasonic generating mechanisms, 33 cleaning fluid heaters, 34 ultrasonic cleaning liquid; 35 transducers, 36 ultrasonic cleaning pond discharge outlet, 37 ultrasonic cleaning pond lower supporters, 38 ultrasonic cleaning pond gaps, 39 ultrasonic power sources; 51 sintered glass sheet bubble generators, 52 admission lines, 53 bubble generation systems blower fans, 61 dry pond air blasts, 62 openable dry pond top covers; 63 heater strips, 71 active components replenish pond water inlet, 72 heaters, 73 oscillation devices; 74 discharge outlet, 81 dry pond air blasts, 82 openable dry pond top covers, 83 heater strips.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done detailed description.
With reference to figure 1 is the practical implementation step of vanadium titanium base honeycombed catalyst regeneration technology.
With reference to figure 2, vanadium titanium base honeycomb-shaped SCR denitrating catalyst 11 is contained in the lifting frame 12, forms lifting regeneration module 1.Driving 13 can lift transportation with regeneration module in regenerative process.Top in pressure (hydraulic) water spray pond 2 is equipped with the spray equipment 23 that is driven by driving mechanism 22.Nozzle 21 through this device can spray sand leaching water on the regeneration module.Cleaning fluid 34 is housed in the ultrasonic cleaning pond 3.Second pressure (hydraulic) water spray pond 4 is identical with the structure in first pressure (hydraulic) water spray pond 2.In bottom, pickling tube 5 ponds bubble generator 51 that the glass sintering sheet is processed and corresponding air supply system 52,53 are housed.Bubble can quicken the material that pickling is got off from catalyst and get into the pickle, strengthens pickling effect.Pickling can cause that the compound of catalyst poisoning washes off with part, also can wash the vanadium of part off, thereby reduces SO 2The oxidation frequency.The part sulfate radical also can load on catalyst in pickling tube.6 tops, the first forced air drying pond cover 62, and heater strip 63 is housed in the dry pond, carry out air blast through Blast mechanism 61.Active component replenishes pond 7 and is provided with temperature control system 72.Active component replenishes liquid and can charge into through the water inlet 71 that replenishes top, pond in the additional pond.Be provided with oscillation device 73 at the bottom of the pond, oscillation device can make active component replenish the liquid vibration, thereby the bubble disengagement wall that produces on the catalyst wall when quickening dipping improves the uniformity of dipping.The structure in the second forced air drying pond 8 is identical with the first forced air drying pool structure.In calcining furnace 9, catalyst is carried out calcination processing, the catalyst that calcining can regeneration induction produces denitration activity, improves the microporous structure of catalyst, can add the structural strength of powerful catalyst simultaneously.
With reference to ultrasonic cleaning pond 3 structural representations that figure 3 is, ultrasonic cleaning liquid 34 is injected in the service sink through what water inlet 31 continued during work.Cleaning fluid and the floating dirt of part excessive in the pond overflow through overfall 38.Discharge outlet 36 is arranged at the service sink bottom.Service sink is provided with temperature control equipment 33.Ultrasonic transducer 35 is installed at the bottom of the pond, and ultrasonic power source 39 provides energy to transducer.Ultrasonic cleaning pond bottom is provided with support 37, prevents that regeneration module from running at the bottom of the pond.
The course of work of the present invention is following:
The vanadium titanium base honeycomb-shaped SCR denitrating catalyst 12 of deactivation, warp evaluation have regeneration necessity, in the lifting frame 11 of packing into, form regeneration module 1.Get into first pressure (hydraulic) water spray pond 2 through 13 liftings of driving a vehicle; After spraying; Lift to get in the ultrasonic cleaning pond 3 and carries out ultrasonic cleaning, ultrasonic cleaning lifts later on to get in second pressure (hydraulic) water spray pond 4 carries out spray Cleaning for High Capacity, and lifting entering pickling tube 5 carries out pickling then.Send into the first forced air drying pond, 6 inner dryings after pickling is intact.Dry intact back lifting entering active component replenishes pond 7 and carries out the active component load, sends into the second dry pond 8 then, carries out forced air drying.Send into after drying finishes in the calcining furnace 9 and calcine, active component decomposes, and vanadium titanium base honeycomb-shaped SCR denitrating catalyst recovers denitration activity, and regenerative process is accomplished.
Describe in the face of embodiment of the present invention down, but following embodiment is some concrete examples, the scope of the invention is not limited to following embodiment.
Embodiment 1
Adopt certain factory's deactivation vanadium-titanium-tungsten type cellular denitrating catalyst; The principal component of catalyst is vanadium, titanium, tungsten; The catalyst sectional dimension is 150mm * 150mm; Cut of 40mm * 40mm * 40mm, at first with pressurization sand leaching water spray 10min.Be placed on then in the water bath with thermostatic control ultrasonic cleaning machine, at the cleaning frequency of 32kHz, 10kW/m 2The sound intensity, clean 8min under 40 ℃ of conditions.The composition of cleaning fluid is HPMA (mass percentage concentration is 0.5 ‰).Spray 5min with deionized water after the ultrasonic cleaning.Put into the sulfuric acid that contains 10g/L and the solution of 0.4 ‰ oxalic acid subsequently and carry out pickling, the acid dip pickle bottom blasts bubble.Put into air dry oven then and carry out dry 20min.Dried catalyst is put into the vanadic sulfate that contains 0.1mol/L and the ammonium metatungstate solution of 0.15mol/L, and the solution pH value is adjusted to 1.5 with sulfuric acid, stirs solution, floods.Catalyst behind the dipping is put into air dry oven and is carried out dry 20min, puts into Muffle furnace and is warmed up to 420 ℃ gradually and keeps 90min, and catalyst regeneration finishes.Get the partial regeneration sample and grind to form 60~100 purpose particles.
Active testing:
In quartz ampoule fixed bed column plug flow reactor, carry out performance test, reacting gas adopts the method for gas cylinder distribution, gas flow 1000mL/min, and air speed is 3 * 10 5h -1, NO and NH 3All be 800ppm, O 2Volume fraction 3%, N 2Be balance gas, adopt the online detection nitrous oxides concentration of GASMET FTIR DX4000 flue gas analyzer, probe temperature is 375 ℃.The conversion ratio X of test NO, test result is: regenerated catalyst X/ fresh catalyst X=0.89, regenerated catalyst X/ deactivation catalyst X=1.41.
Strength test:
Regenerated catalyst and fresh catalyst are carried out strength test respectively on universal strength tester, do not find the phenomenon that the former has tangible intensity to weaken.
SO 2The oxidation conversion frequency test:
In quartzy tubing string fixed bed plug flow reactor, carry out reaction test, SO 2Gas flow 150NmL/min, air speed is 3 * 10 5h -1, O 2Volume fraction 3%, He is a balance gas, probe temperature is 375 ℃.To reflect implication appearance temperature maintenance and be expelled in the gas-chromatography more than 200 ℃, thermal conductivity detector (TCD) is housed chromatogram and the sulfur chemistry luminescence detector detects.Record regenerated catalyst and fresh catalyst with SO 2Be oxidized to SO 3Ratio all less than 1%.
Embodiment 2
Catalyst from embodiment 1 cuts of 40mm * 40mm * 40mm, at first with pressurization sand leaching water spray 10min.Be placed on then in the water bath with thermostatic control ultrasonic cleaning machine, at the cleaning frequency of 20kHz, 20kW/m 2The sound intensity, clean 10min under 35 ℃ of conditions.The composition of cleaning fluid is HPMA (mass percentage concentration is 0.5 ‰).Spray 5min with deionized water after the ultrasonic cleaning.Put into the sulfuric acid that contains 50g/L and the solution of 0.4 ‰ oxalic acid subsequently and carry out pickling, the acid dip pickle bottom blasts bubble.Put into air dry oven then and carry out dry 20min.Dried catalyst is put into the vanadic sulfate that contains 0.15mol/L and the ammonium metatungstate solution of 0.2mol/L, and the solution pH value is adjusted to 2 with sulfuric acid, stirs solution, floods.Catalyst behind the dipping is put into air dry oven and is carried out dry 20min, puts into Muffle furnace and is warmed up to 450 ℃ gradually and keeps 60min, and catalyst regeneration finishes.It is subsequent use that the partial regeneration sample is ground to form 60~100 purpose particles.
Active testing:
In quartz ampoule plug flow reactor, carry out the performance test of powder, reacting gas adopts the method for gas cylinder distribution, gas flow 1000mL/min, and air speed is 3 * 10 5h -1, NO and NH 3Concentration all is 800ppm, O 2Volume fraction 3%, N 2Be balance gas, adopt the online detection outlet of GASMET FTIR DX4000 flue gas analyzer nitrous oxides concentration.
The conversion of nitrogen oxides efficient of three kinds of catalyst of table 1
NO conversion ratio X Fresh catalyst Regenerated catalyst The deactivation catalyst
320℃ 91% 84% 44%
375℃ 97% 92% 51%
400℃ 96% 88% 54%
420℃ 94% 91% 56%
Embodiment 3
Denitrating catalyst from embodiment 1 cuts of 40mm * 40mm * 40mm, at first with pressurization sand leaching water spray 5min.Be placed on then in the water bath with thermostatic control ultrasonic cleaning machine, at the cleaning frequency of 18kHz, 20kW/m 2The sound intensity, clean 10min under 40 ℃ of conditions.Cleaning fluid composition is HPMA (mass percentage concentration is 0.5 ‰).Cleaned the back and sprayed 5min with deionized water.Put into the sulfuric acid that contains 25g/L and the solution of 0.2 ‰ gallic acids subsequently and carry out pickling, the acid dip pickle bottom blasts bubble.Put into the dry 20min of air dry oven then.Dried catalyst is put into the vanadic sulfate that contains 0.15mol/L and the ammonium metatungstate solution of 0.2mol/L, and the solution pH value is adjusted to 2.5 with sulfuric acid, stirs solution, floods.Catalyst behind the dipping is put into air dry oven and is carried out dry 20min, puts into Muffle furnace and is warmed up to 450 ℃ gradually, keeps 90min, and catalyst regeneration finishes.
Active testing:
In integral honeycomb shape hydrogen-catalyst reactor, carry out the denitration performance test.The cross section of reaction vessel is 40mm * 40mm, and reacting gas adopts the method for gas cylinder distribution.Gas flow 3840mL/min, air speed is 4.8 * 10 3h -1, NO and NH 3Concentration all is 800ppm, O 2Volume fraction 3%, N 2Be balance gas, adopt GASMET FTIR DX4000 flue gas analyzer to detect the nitrous oxides concentration of outlet.Probe temperature is 375 ℃.Test result: the transformation efficiency of the oxides of nitrogen of fresh catalyst is 84%, and the conversion ratio of regenerated catalyst is 79%.

Claims (10)

1. vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology is characterized in that, is made up of the following step: the catalyst honeycomb of regeneration is packed into to lift in the support frame form regeneration module; Pressure (hydraulic) water spray, ultrasonic cleaning, secondary pressure (hydraulic) water spray, pickling, forced air drying, active component replenish liquid dipping, secondary forced air drying, calcining in order to this regeneration module.
2. vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology according to claim 1, it is characterized in that: the composition that is used for the cleaning fluid of ultrasonic cleaning is: the solubilizer of mass percent concentration 0~0.7 ‰, mass percentage concentration are one or more of JFC-2 fatty alcohol ethylene oxide condensate of 0~0.5 ‰ HPMA poly, mass percent concentration 0~1 ‰; Solubilizer is to gather a kind of of sorbic acid fat or polyoxyethylene fatty acid or two kinds; Cleaning fluid is kept 20~45 ℃ during cleaning.
3. vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology according to claim 1, it is characterized in that: the composition that is used for the pickle of pickling is: sulfuric acid concentration 7.84g/L~78.4g/L; Other adds mass percent concentration is that 0~0.2 ‰ gallic acid and mass percent concentration are one or more of 0~0.4 ‰ oxalic acid.
4. vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology according to claim 1 is characterized in that: active component replenishes liquid and is: vanadic sulfate molar fraction 0.05~0.15mol/L, ammonium metatungstate concentration 0.1~0.2mol/L; Regulate the active pH value that replenishes liquid with sulfuric acid, pH value is controlled at 1.5~3.
5. vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology according to claim 1 is characterized in that calcining furnace slowly heats up (5~10 ℃/min), calcine finally keep 30~90min under 400~500 ℃ condition.
6. be used to realize the device like each described vanadium titanium base honeycomb-shaped SCR denitrating catalyst regeneration technology of claim 1 to 5, it is characterized in that: this device comprises that the pressure (hydraulic) water spray pond, ultrasonic cleaning pond, secondary pressure (hydraulic) water spray pond, pickling tube, forced air drying pond, the active component that set gradually replenish pond, secondary forced air drying pond, calcining furnace; The pressure (hydraulic) water spray, ultrasonic cleaning, secondary pressure (hydraulic) water spray combines forms pressure (hydraulic) water spray-ultrasonic cleaning equipment.
7. like right 6 described devices, it is characterized in that: the used supersonic frequency of ultrasonic cleaning is 15~32kHz, and the matching relationship of the power in ultrasonic power source and pond, ultrasonic cleaning pond floor space is 10~60kW/m 2
8. like right 6 described devices; It is characterized in that: bottom, ultrasonic cleaning pond is provided with support; A plurality of ultrasonic transducers are installed in the bottom in ultrasonic cleaning pond, and the ultrasonic cleaning pond is provided with heater, water inlet, discharge outlet at the bottom of the pond, and the service sink side wall upper part is provided with gap.
9. like right 6 described devices, it is characterized in that: the bubble generator that the pickling tube bottom has the glass sintering sheet to process.
10. like right 6 described devices, it is characterized in that: active component replenishes the bottom, pond has oscillation device.
CN201210103895.2A 2012-04-11 2012-04-11 Regeneration technology of V-Ti-based honeycomb SCR denitration catalyst, and apparatus thereof CN102658170B (en)

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CN105435862A (en) * 2015-12-14 2016-03-30 江苏肯创催化剂再生技术有限公司 Fixed automatic cleaning and regeneration line and regeneration process for SCR denitration catalyst
CN105665037A (en) * 2016-02-23 2016-06-15 洛阳万山高新技术应用工程有限公司 Regenerative activation treatment method for inactivated SCR denitrated catalyst
CN105797790A (en) * 2016-04-08 2016-07-27 天河(保定)环境工程有限公司 Acid pickling solution and method for recycling waste denitration catalysts
CN105840311A (en) * 2015-12-07 2016-08-10 江苏万路达环保科技有限公司 Repairing method for motor vehicle exhaust purifier
CN106902895A (en) * 2017-03-21 2017-06-30 黑龙江丰迪环保科技有限公司 Failure denitrating catalyst regeneration method

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CN102974368A (en) * 2012-11-07 2013-03-20 广东电网公司电力科学研究院 Deactivated SCR denitration catalyst regeneration method
CN102974368B (en) * 2012-11-07 2014-10-22 广东电网公司电力科学研究院 Deactivated SCR denitration catalyst regeneration method
CN103055962A (en) * 2012-12-25 2013-04-24 国电新能源技术研究院 Method and equipment for selective catalystic reduction (SCR) denitration catalyst reactivation
CN104148122A (en) * 2012-12-25 2014-11-19 国电新能源技术研究院 Regeneration equipment for SCR denitration catalyst
CN103055962B (en) * 2012-12-25 2014-08-13 国电新能源技术研究院 Selective catalystic reduction (SCR) denitration catalyst reactivation method
CN103071545A (en) * 2012-12-25 2013-05-01 北京国电龙源环保工程有限公司 Ultrasonic cleaning device and method for regenerating catalyst
CN103464221B (en) * 2013-09-03 2015-11-18 广东电网公司电力科学研究院 SCR denitration system catalyst regeneration equipment and process of regenerating
CN103464221A (en) * 2013-09-03 2013-12-25 广东电网公司电力科学研究院 SCR (Selective Catalytic Reduction) denitration system catalyst regeneration equipment and regeneration technology method
CN103736527A (en) * 2014-01-12 2014-04-23 高同柱 Manufacturing method and process device of reactivated cleaning agent for regeneration of honeycomb SCR (selective catalytic reduction) denitration catalyst
CN103816946A (en) * 2014-02-12 2014-05-28 无锡华光新动力环保科技股份有限公司 Cleaning liquid for regenerated SCR (silicon controlled rectifier) denitration catalyst and method for regenerating SCR denitration catalyst
CN103977845A (en) * 2014-05-23 2014-08-13 北京圣鑫乾元科技有限公司 SCR (selective catalytic reaction) catalyst regenerating system and method
CN104667997A (en) * 2015-01-14 2015-06-03 北京华电斯莱克顿技术有限公司 SCR catalyst regeneration method
CN104923316A (en) * 2015-05-13 2015-09-23 湖北大清科技有限公司 Regeneration method and equipment of selective catalytic reduction (SCR) denitration catalyst
CN104889143A (en) * 2015-06-02 2015-09-09 无锡华光新动力环保科技股份有限公司 Improved recycling method for waste flue gas denitrification catalyst
CN105363500A (en) * 2015-09-11 2016-03-02 福建紫荆环境工程技术有限公司 Closed cleaning device and method for inactivate SCR denitration catalyst and regeneration system and method
CN105413461A (en) * 2015-11-18 2016-03-23 国网吉林省电力有限公司电力科学研究院 Special effect regeneration method for thermal power plant flue gas denitrification vanadium-titanium-based catalyst
CN105840311A (en) * 2015-12-07 2016-08-10 江苏万路达环保科技有限公司 Repairing method for motor vehicle exhaust purifier
CN105840311B (en) * 2015-12-07 2018-06-19 江苏万路达环保科技有限公司 Tail gas cleaner for motor-driven vehicle restorative procedure
CN105435862A (en) * 2015-12-14 2016-03-30 江苏肯创催化剂再生技术有限公司 Fixed automatic cleaning and regeneration line and regeneration process for SCR denitration catalyst
CN105665037A (en) * 2016-02-23 2016-06-15 洛阳万山高新技术应用工程有限公司 Regenerative activation treatment method for inactivated SCR denitrated catalyst
CN105797790A (en) * 2016-04-08 2016-07-27 天河(保定)环境工程有限公司 Acid pickling solution and method for recycling waste denitration catalysts
CN106902895A (en) * 2017-03-21 2017-06-30 黑龙江丰迪环保科技有限公司 Failure denitrating catalyst regeneration method

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