CN104923316A - Regeneration method and equipment of selective catalytic reduction (SCR) denitration catalyst - Google Patents
Regeneration method and equipment of selective catalytic reduction (SCR) denitration catalyst Download PDFInfo
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- CN104923316A CN104923316A CN201510240705.5A CN201510240705A CN104923316A CN 104923316 A CN104923316 A CN 104923316A CN 201510240705 A CN201510240705 A CN 201510240705A CN 104923316 A CN104923316 A CN 104923316A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides a regeneration method and regeneration equipment of a selective catalytic reduction (SCR) denitration catalyst. The regeneration method includes: 1) front-section cleaning process by removing dust and impurity particles on the catalyst; 2) activation process by immersing the dried SCR denitration catalyst in an activation liquid for activation reaction; 3) drying process by drying the SCR denitration catalyst in order to avoid the activated catalyst from deactivation and damage; and 4) re-forging process by placing the dried deactivated catalyst in a furnace, allowing mixed gas to pass through a mixing preheating furnace and then enter a regeneration reactor, and carrying out heat treatment regeneration of the deactivated catalyst in the furnace. The method solves the problems of low activity of the regenerated catalyst, low practicability and complex operation and so on in the prior art.
Description
Technical field
The invention belongs to SCR catalyst regeneration field, be specifically related to a kind of SCR denitration renovation process and reclaim equiment.
Background technology
Due to mankind's activity and economic fast development, China's environment is seriously damaged, extreme climate showed increased, serious threat is caused to people's life and property, heavy losses are caused to country, hinder the sustainable development of national economy, country has also paid huge cost in order to Environment control simultaneously.
The current discharged nitrous oxides total amount of China is more than 1,800 ten thousand tons, if do not take effective control measure, continuation increases by Future Ten 5 years Chinese nitrogen oxide emissions, may reach more than 3,000 ten thousand tons to the year two thousand twenty.China is coal-fired big country, and coal-burning power plant is the primary emission source of nitrogen oxide, accounts for 40% of total amount, will become the first batch of control object of country.
Honeycomb ceramics SCR denitration Main Function is by the NO in discharging waste gas
xconvert nitrogen and steam to, to reach environmental emission standard.
The the widest of current catalyst application is honeycomb type V2O5-WO3/TiO2 type catalyst.Catalyst is (life-span of current coal fired power plant SCR catalyst is generally 2 ~ 3 years) in use for some time, and blockage of the micro orifice in various degree and the phenomenon such as channel blockage, catalyst poisoning can occur, and causes catalyst activity reduction even inactivation.SCR catalyst preparation costly, is replaced decaying catalyst and is cost dearly, therefore, by cleaning the SCR catalyst of the very low even inactivation of denitration efficiency and regenerate, achieve resource reutilization.But how by SCR catalyst cleaning and regeneration technique, being reduced into highly purified catalyst becomes a urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of SCR denitration renovation process and reclaim equiment, solve the problems such as the activity of catalyst regeneration in prior art is on the low side, impracticable, complicated operation, the method and device are applicable to the regeneration process of SCR denitration, be particularly useful for the type of catalyst blockage and inactivation, adopt the method can reduce the expense of catalyst change, the service life of extending catalyst.
A renovation process for SCR denitration, is characterized in that, comprises the steps, step 1: leading portion cleaning technology, and removing SCR denitration urges dust on catalyst and impurity particle; Step 2: activating process, immerses the SCR denitration after cleaning in activating solution and carries out priming reaction; Step 3: drying process, carries out drying and processing to avoid the catalyst inactivation damage again of activity recovery to the SCR denitration after priming reaction; Step 4: Forging Technology again, is positioned in burner hearth by the SCR denitration after drying, and mist enters converter after mixing preheating furnace, in burner hearth, heat-treat regeneration to the catalyst of inactivation.
Preferably, leading portion cleaning technology comprises: deashing operation, purges SCR denitration to remove the dust of SCR denitration surface attachment; Matting, cleaning SCR denitration is to remove the impurity particle on catalyst.
Preferably, described matting is any one or any combination in concussion cleaning, pickling and Ultrasonic Cleaning.
Preferably, before carrying out concussion cleaning, pickling and Ultrasonic Cleaning, also carry out cleaning showers, tentatively clean for SCR denitration.
Preferably, when carrying out pickling to SCR denitration, Acidwash solution used is H
2sO
4with the mixed liquor of emulsifying agent S-185, wherein H
2sO
4concentration is 0.2 ~ 0.8mol/L, and the concentration of emulsifying agent S-185 is 0.05 ~ 1wt%, in mixed liquor, and water: H
2sO
4: the mass ratio of S-185 is 16: 1: 1.
Preferably, when carrying out activating process, regenerated liquid used is V
2o
5and WO
3or V
2o
5and MO
3.
Preferably, also comprise evaluation process before step 1, judge the Possibility of Regeneration of SCR denitration, assess the outward appearance of SCR denitration, physical property and chemical composition.
Preferably, in step 4, while carrying out again Forging Technology, also comprise exhaust collection technique, collect and forge reacted tail gas again.
A kind of SCR denitration reclaim equiment, comprising: leading portion cleaning mechanism, regenerative response mechanism and tail gas absorption mechanism, described leading portion cleaning mechanism comprises the air compressor being configured with high pressure nozzle, deashing groove, packaged type clean container, transmission spray structure, ultrasonic vibrator and cleaning fluid storage element, described high pressure nozzle is placed in above described deashing groove, at least one injector that described transmission spray structure comprises transfer assembly and arranges along direction of transfer, described ultrasonic vibrator is arranged at the output of transfer assembly, fill pending catalyst in described packaged type clean container and be placed in the upper of described ultrasonic vibrator via transfer assembly, described cleaning fluid storage element is located at the top of described ultrasonic vibrator, described regenerative response mechanism comprises activation recovering liquid storage element, mixing preheating furnace, converter and condenser, described activation recovering liquid storage element with mix preheating furnace and pass through pipeline connection, described mixing preheating furnace, converter are connected successively with condenser, and described converter is provided with heating element heater, described tail gas absorption mechanism comprises the first connected absorber and the second absorber, and wherein, condenser is communicated with the first absorber, and the reacted tail gas of converter is connected with the second absorber after condenser cooling.
Preferably, described leading portion cleaning mechanism also comprises concussion washer, and described concussion washer is located between described transmission spray structure and ultrasonic vibrator.
SCR denitration renovation process provided by the present invention and reclaim equiment, by air compressor, decaying catalyst is purged, rinse bath is utilized to complete washing, chemical treatment, activated process, mixing preheating furnace can regulate aqueous liquids temperature in chemical treatment, improve chemical reaction efficiency, by converter, drying process is carried out to catalyst, thus obtain regenerated catalyst expediently, solve the activity of catalyst regeneration in prior art on the low side, impracticable, the problems such as complicated operation, this device is applicable to the regeneration process of SCR denitration, be particularly useful for the type of catalyst blockage and inactivation, adopt the method can reduce the expense of catalyst change, the service life of extending catalyst.
Accompanying drawing explanation
Fig. 1 is the flow process block schematic illustration of SCR denitration renovation process of the present invention.
Detailed description of the invention
For the benefit of to the understanding of structure of the present invention, be described below in conjunction with drawings and Examples.
Fig. 1 is the flow process block schematic illustration of SCR denitration renovation process of the present invention, shown in composition graphs 1, the invention provides a kind of renovation process of SCR denitration, comprises the steps,
A1: leading portion cleaning technology, the dust on removing catalyst and impurity particle.In the present embodiment, leading portion cleaning technology comprises: deashing technique and cleaning.Further, first can carry out ashman's skill then to carry out cleaning or first carry out cleaning carrying out deashing technique again.
Deashing operation, purges SCR denitration, to remove the dust of SCR denitration surface attachment by the high pressure nozzle of air compressor.
Matting, cleaning SCR denitration is to remove the impurity particle on catalyst.Further, described matting is any one or any combination in concussion cleaning, pickling and Ultrasonic Cleaning.In addition, any combination concussion cleaning, pickling and Ultrasonic Cleaning time, arbitrarily can adjust sequencing between three.In the present embodiment, the Acidwash solution carrying out pickling is H
2sO
4with the mixed liquor of emulsifying agent S-185, wherein H
2sO
4concentration is 0.2 ~ 0.8mol/L, and the concentration of emulsifying agent S-185 is 0.05 ~ 1wt%, in mixed liquor, and water: H
2sO
4: the mass ratio of S-185 is 16: 1: 1.
In addition, before carrying out concussion cleaning, pickling and Ultrasonic Cleaning, also carry out cleaning showers, coordinate injector hydro-peening SCR denitration, tentatively to clean SCR denitration by continuous-flow type transmission device.
In actual applications, before steps A 1, also comprise evaluation process, judge the Possibility of Regeneration of SCR denitration, assess the outward appearance of SCR denitration, physical property and chemical composition.
A2: activating process, immerses the SCR denitration after cleaning in activating solution and carries out priming reaction.In the present embodiment, the regenerated liquid of activation process is V
2o
5and WO
3or V
2o
5and MO
3.
A3: drying process, carries out drying and processing to the SCR denitration after priming reaction, to avoid the catalyst inactivation damage again of activity recovery.
A4: Forging Technology again, places the catalyst of the inactivation after drying and processing in burner hearth, mist enters converter after mixing preheating furnace, in burner hearth, heat-treat regeneration to the catalyst of inactivation.Further, while carrying out again Forging Technology, also comprise exhaust collection technique, collect and forge reacted tail gas again.Exhaust collection technique mainly collects sulfur dioxide in condenser and the ammonia of the reacted tail gas of converter after condenser cooling.
The invention provides a kind of SCR denitration reclaim equiment, this regenerating unit comprise place successively leading portion processing mechanism 10, regenerative response mechanism 20 and tail gas absorption mechanism 30, wherein regenerative response mechanism 20 is connected with tail gas absorption mechanism 30.
Described leading portion cleaning mechanism 10 comprises the air compressor 11, deashing groove 12, packaged type clean container 13, transmission spray structure 14, ultrasonic vibrator 15 and the cleaning fluid storage element 16 that are configured with high pressure nozzle.Described high pressure nozzle is placed in the top of described deashing groove 12, and in the present embodiment, described pre-treatment mechanism 10 also comprises dust-collector, and this dust-collector is positioned at the bottom of deashing groove, for better collecting dust.
At least one injector that described transmission spray structure 14 comprises transfer assembly and arranges along direction of transfer, described ultrasonic vibrator 15 is arranged at the output of transfer assembly, fill pending catalyst in described packaged type clean container 13 and be placed in the upper of described ultrasonic vibrator 15 via transfer assembly 14, described cleaning fluid storage element 16 is located at the top of described ultrasonic vibrator 15.What need cause concern is, described leading portion cleaning mechanism also can arrange a concussion washer 17, described concussion washer 17 is located between described transmission spray structure 14 and ultrasonic vibrator 15, this concussion washer 17 is for fully clean by the particle of module bottom, in addition, by the control to concussion angle and frequency, the secondary damage of catalyst can be prevented.
Further, described packaged type clean container 13 is corrosion resistant accommodating casing, offers cleaning opening above described accommodating casing.Further, described cleaning fluid storage element 16 comprises cleaning fluid liquid reserve tank, the cleaning fluid conveying pipeline be communicated with described cleaning fluid liquid reserve tank and the delivery pump be arranged on cleaning fluid conveying pipeline, and described cleaning fluid conveying pipeline is also provided with a pressure-regulating valve.In practice, the connecting pipe of described injector is also provided with pressure-regulating valve, by regulating pressure-regulating valve, for the pressure requirements of the different catalyst of adaptation.
In addition, be provided with Acidwash solution in described cleaning fluid storage element 16, described Acidwash solution is H
2sO
4with the mixed liquor of emulsifying agent S-185, wherein H
2sO
4concentration is 0.2 ~ 0.8mol/L, and the concentration of emulsifying agent S-185 is 0.05 ~ 1wt%, in mixed liquor, and water: H
2sO
4: the mass ratio of S-185 is 16: 1: 1.
Described regenerative response mechanism 20 comprises activation recovering liquid storage element 21, mixing preheating furnace 22, converter 23 and condenser 24, described activation recovering liquid storage element 20 with mix preheating furnace 22 and pass through pipeline connection, described mixing preheating furnace 22, converter 23 are connected successively with condenser 24, and described converter 23 is provided with heating element heater.
Regenerative response mechanism 20 also comprises a heater 25, the drying process after described heater 25 processes via recovery liquid storage element 21 for pending catalyst.What need cause concern is in dry run, need complete transpiring moisture, and its reason is: 1. residual in catalyst pores moisture content can rapid evaporation, causes catalyst to produce crack thus impaired; 2, the flying dust in flue gas very easily adheres to moist catalysis top layer, produces unnecessary catalyst failure from the beginning.
Tail gas absorption mechanism 30 comprises the first connected absorber 31 and the second absorber 32, and wherein, condenser 24 is communicated with the first absorber 31, and the reacted tail gas of converter 23 is connected with the second absorber 32 after condenser 24 is lowered the temperature.In the present embodiment, first absorber 31 and the second absorber 32 are respectively sulfur dioxide absorber and ammonia scrubber, wherein, condenser 24 is communicated with sulfur dioxide absorber, and the reacted tail gas of converter 23 enters the second absorber 32 to absorb SO2 and NH3 in tail gas after condenser 24 is lowered the temperature.
To a kind of SCR denitration renovation process of the present invention and reclaim equiment, the process details to catalyst regeneration is described in detail below.
S1, deashing
First, pending catalyst is positioned over deashing groove 12, the catalyst of regeneration can be cellular V2O5/TiO2 catalyst, the high pressure nozzle of air compressor 11 is utilized directly to purge the dust that catalyst covers, blow the dust that flies collected by the dust-collector below deashing groove 12, this is arranged is convenient to clear up dust, time saving and energy saving.When purging catalyst, need to cause concern, first purge the flying dust of catalyst surface, after purging to be confirmed is clean, by the skin in catalyst duct, successively purge flying dust, until all surface has purged toward internal layer.Flying dust can be avoided in purge on the impact of purging part, improve and purge efficiency.
S2, pipeline system spray
Catalyst is placed in packaged type clean container 13, packaged type clean container 13 is placed on transfer assembly 14, and moves along direction of transfer, is automatically cleaned by multiple injectors of the arrangement above transfer assembly 14.In practical application, automatically artificial ejecting gun also can be artificially utilized to carry out additional clean after cleaning.
S3, overall concussion cleaning
After spray, open concussion washer 17 and carry out concussion washing, the particle for just module bottom is fully clean, in addition, by the control of shaking angle and frequency, can prevent the secondary damage of catalyst.
S4, pickling
By the Acidwash solution in cleaning fluid liquid reserve tank 16, wet chemical process is carried out to catalyst, for removal toxicant.Control processing time, pH, surfactant, chemical substance and solution temperature (regulating by heater), avoid metal ion (such as iron ion) to activate, minimize so that active material is removed to be reduced to.According to coal Quality Research, more potassium, the soda metal that contain in boiler smoke, alkali-metal existence makes the quantity of the Bronsted acidic site of one of SCR catalyst active sites greatly reduce, and weaken the acidity of Bronsted acidic site, thus reduction catalyst activity, be removed by chemical treatment in this case, the time of usually soaking is greater than 2 hours.
S5, Ultrasonic Cleaning
Start ultrasonator 15, remove the sand and dust of physical clogging in catalyst duct and be deposited on the dissolved matter of catalyst surface.After ultrasonic cleaning, it is cleaner that the catalyst duct of blocking is all cleaned.
S6, activity recovery
Regenerated liquid in activation recovering liquid storage element 21 is imported rinse bath, catalyst is activated.Specifically, regenerated liquid is V2O5 and WO3 or V2O5 and MO3, and wherein V2O5 is the key reducing SO2/SO3 conversion ratio in the distribution of catalyst surface.Specifically utilize regenerated liquid to soak to activate catalyst, due to catalyst in use, active component can because form volatile matter and run off with some element interactions in flue gas, thus active component concentration is reduced, in addition, also the part of active component can be caused during abovementioned steps process to run off, therefore catalyst is activated, thus improve catalyst activity concentration of component.
S7, drying
The catalyst started after heater 25 pairs of activity recoveries carries out drying process.Specifically, utilize high-temperature gas to carry out drying process to catalyst, the catalyst regenerated after being processed by drying, can be obtained.Catalyst now needs to dry completely, main cause: 1, residual in catalyst pores moisture content can rapid evaporation, causes catalyst to produce crack thus impaired; 2, the flying dust in flue gas very easily adheres to moist catalysis top layer, produces unnecessary catalyst failure from the beginning.
S8, to calcine again
Mix preheating furnace 22 in regenerative response mechanism 20, converter 23 is connected successively with condenser 24, by pushing head, charging tray is pushed sintering zone from charging aperture, under each temperature control region, carry out roasting, then condenser cooling, discharging.Converter is provided with heating element heater, furnace temperature is shown by the temperature controller be arranged in burner hearth and controls, the catalyst of the inactivation after blowing ash process is placed in burner hearth, the outer wall of converter is also coated with one deck insulating, mist enters converter after mixing preheating furnace, in burner hearth, heat-treat regeneration to the catalyst of inactivation.
S9, exhaust collection
Sulfur dioxide and ammonia is collected respectively by the first absorber 31 and the second absorber 32.
SCR denitration renovation process provided by the present invention and reclaim equiment, by air compressor, decaying catalyst is purged, rinse bath is utilized to complete washing, chemical treatment, activated process, mixing preheating furnace can regulate aqueous liquids temperature in chemical treatment, improve chemical reaction efficiency, by converter, drying process is carried out to catalyst, last vent gas treatment, thus obtain regenerated catalyst expediently, solve the activity of catalyst regeneration in prior art on the low side, impracticable, the problems such as complicated operation, this device is applicable to the regeneration process of SCR denitration, be particularly useful for the type of catalyst blockage and inactivation, adopt the method can reduce the expense of catalyst change, the service life of extending catalyst.
Below embodiment is to invention has been detailed description by reference to the accompanying drawings, and those skilled in the art can make many variations example to the present invention according to the above description.Thus, some details in embodiment should not form limitation of the invention, the present invention by the scope that defines using appended claims as protection domain.
Claims (10)
1. a renovation process for SCR denitration, is characterized in that, comprises the steps,
Step 1: leading portion cleaning technology, removing SCR denitration urges dust on catalyst and impurity particle;
Step 2: activating process, immerses the SCR denitration after cleaning in activating solution and carries out priming reaction;
Step 3: drying process, carries out drying and processing to avoid the catalyst inactivation damage again of activity recovery to the SCR denitration after priming reaction;
Step 4: Forging Technology again, is positioned in burner hearth by the SCR denitration after drying, and mist enters converter after mixing preheating furnace, in burner hearth, heat-treat regeneration to the catalyst of inactivation.
2. SCR denitration renovation process according to claim 1, is characterized in that, leading portion cleaning technology comprises:
Deashing operation, purges SCR denitration to remove the dust of SCR denitration surface attachment;
Matting, cleaning SCR denitration is to remove the impurity particle on catalyst.
3. SCR denitration renovation process according to claim 2, is characterized in that, described matting is any one or any combination in concussion cleaning, pickling and Ultrasonic Cleaning.
4. SCR denitration renovation process according to claim 3, is characterized in that, before carrying out concussion cleaning, pickling and Ultrasonic Cleaning, also carries out cleaning showers, tentatively cleans for SCR denitration.
5. the SCR denitration renovation process according to claim 3 or 4, is characterized in that, when carrying out pickling to SCR denitration, Acidwash solution used is H
2sO
4with the mixed liquor of emulsifying agent S-185, wherein H
2sO
4concentration is 0.2 ~ 0.8mol/L, and the concentration of emulsifying agent S-185 is 0.05 ~ 1wt%, in mixed liquor, and water: H
2sO
4: the mass ratio of S-185 is 16: 1: 1.
6. the SCR denitration renovation process according to claim 3 or 4, is characterized in that, when carrying out activating process, regenerated liquid used is V
2o
5and WO
3or V
2o
5and MO
3.
7. the SCR denitration renovation process according to claim 1 or 6, it is characterized in that, also comprise evaluation process before step 1, judge the Possibility of Regeneration of SCR denitration, assess the outward appearance of SCR denitration, physical property and chemical composition.
8. SCR denitration renovation process according to claim 1, is characterized in that, in step 4, also comprises exhaust collection technique while carrying out Forging Technology again, collects and forges reacted tail gas again.
9. a SCR denitration reclaim equiment, is characterized in that, comprising: leading portion cleaning mechanism, regenerative response mechanism and tail gas absorption mechanism;
Described leading portion cleaning mechanism comprises the air compressor being configured with high pressure nozzle, deashing groove, packaged type clean container, transmission spray structure, ultrasonic vibrator and cleaning fluid storage element, described high pressure nozzle is placed in above described deashing groove, at least one injector that described transmission spray structure comprises transfer assembly and arranges along direction of transfer, described ultrasonic vibrator is arranged at the output of transfer assembly, fill pending catalyst in described packaged type clean container and be placed in the upper of described ultrasonic vibrator via transfer assembly, described cleaning fluid storage element is located at the top of described ultrasonic vibrator,
Described regenerative response mechanism comprises activation recovering liquid storage element, mixing preheating furnace, converter and condenser, described activation recovering liquid storage element with mix preheating furnace and pass through pipeline connection, described mixing preheating furnace, converter are connected successively with condenser, and described converter is provided with heating element heater;
Described tail gas absorption mechanism comprises the first connected absorber and the second absorber, and wherein, condenser is communicated with the first absorber, and the reacted tail gas of converter is connected with the second absorber after condenser cooling.
10. SCR denitration reclaim equiment according to claim 9, is characterized in that, described leading portion cleaning mechanism also comprises concussion washer, and described concussion washer is located between described transmission spray structure and ultrasonic vibrator.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498538A (en) * | 2016-01-18 | 2016-04-20 | 北京国电龙源环保工程有限公司 | Regenerated liquid capable of repairing mechanical properties of waste denitration catalyst and regeneration method |
| CN106694467A (en) * | 2017-01-09 | 2017-05-24 | 安徽元琛环保科技股份有限公司 | Cleaning device and method and regeneration method for waste denitration catalyst |
| CN107961818A (en) * | 2017-12-06 | 2018-04-27 | 南京威安新材料科技有限公司 | The renovation process and production equipment of flue gas SCR catalyst |
| CN108499616A (en) * | 2018-03-20 | 2018-09-07 | 长沙理工大学 | Vehicular SCR catalyst situ regeneration is equipped |
| CN110893351A (en) * | 2018-09-12 | 2020-03-20 | 无锡利信能源科技有限公司 | Denitration catalyst regeneration system |
| CN112958165A (en) * | 2021-02-26 | 2021-06-15 | 无锡迅德环保工程有限公司 | Technological process of SCR denitration catalyst regeneration production line |
| CN113441190A (en) * | 2021-07-28 | 2021-09-28 | 苏州西热节能环保技术有限公司 | Ash removal method for plate-type denitration catalyst regeneration pretreatment |
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| CN102658170A (en) * | 2012-04-11 | 2012-09-12 | 西安交通大学 | Regeneration technology of V-Ti-based honeycomb SCR denitration catalyst, and apparatus thereof |
| CN102658215A (en) * | 2012-04-09 | 2012-09-12 | 南京工业大学 | SCR (selective catalytic reduction) flue gas denitration catalyst regeneration method |
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| CN102658215A (en) * | 2012-04-09 | 2012-09-12 | 南京工业大学 | SCR (selective catalytic reduction) flue gas denitration catalyst regeneration method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498538A (en) * | 2016-01-18 | 2016-04-20 | 北京国电龙源环保工程有限公司 | Regenerated liquid capable of repairing mechanical properties of waste denitration catalyst and regeneration method |
| CN105498538B (en) * | 2016-01-18 | 2019-02-01 | 北京国电龙源环保工程有限公司 | A kind of regenerated liquid and regeneration method for repairing useless denitrating catalyst mechanical performance |
| CN106694467A (en) * | 2017-01-09 | 2017-05-24 | 安徽元琛环保科技股份有限公司 | Cleaning device and method and regeneration method for waste denitration catalyst |
| CN107961818A (en) * | 2017-12-06 | 2018-04-27 | 南京威安新材料科技有限公司 | The renovation process and production equipment of flue gas SCR catalyst |
| CN108499616A (en) * | 2018-03-20 | 2018-09-07 | 长沙理工大学 | Vehicular SCR catalyst situ regeneration is equipped |
| CN108499616B (en) * | 2018-03-20 | 2021-07-20 | 长沙理工大学 | Vehicle-mounted SCR catalyst on-site regeneration equipment |
| CN110893351A (en) * | 2018-09-12 | 2020-03-20 | 无锡利信能源科技有限公司 | Denitration catalyst regeneration system |
| CN110893351B (en) * | 2018-09-12 | 2024-03-15 | 无锡利信能源科技有限公司 | Denitration catalyst regeneration system |
| CN112958165A (en) * | 2021-02-26 | 2021-06-15 | 无锡迅德环保工程有限公司 | Technological process of SCR denitration catalyst regeneration production line |
| CN113441190A (en) * | 2021-07-28 | 2021-09-28 | 苏州西热节能环保技术有限公司 | Ash removal method for plate-type denitration catalyst regeneration pretreatment |
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Application publication date: 20150923 |