CN108261868A - A kind of emission reduction solid fuel ignition PM2.5, SO2And NO2Method - Google Patents

A kind of emission reduction solid fuel ignition PM2.5, SO2And NO2Method Download PDF

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Publication number
CN108261868A
CN108261868A CN201810004315.1A CN201810004315A CN108261868A CN 108261868 A CN108261868 A CN 108261868A CN 201810004315 A CN201810004315 A CN 201810004315A CN 108261868 A CN108261868 A CN 108261868A
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China
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suspension
flue gas
solid fuel
emission reduction
fuel ignition
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CN201810004315.1A
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陈惠超
梁财
吴新
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Southeast University
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Southeast University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/06—Spray cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The present invention discloses a kind of emission reduction solid fuel ignition PM2.5, SO2And NO2Method, which is characterized in that by the attapulgite clay that grain size is 200 400 mesh, be added in water or aqueous solution containing surfactant for 0.1~1wt.% using mass ratio and form suspension, acid solution adjusting suspension pH value is used to be stirred continuously suspension for 5~7.The amount that flue gas flow percent by volume is 0.01%~0.05% is accounted for by liquid pump by suspended flow quantity to be pumped into suspension in stove below the emulsion zone of boiler or dilute-phase zone air inlet, the droplet that suspension atomization is 20~50 μm is mixed with coal-fired flue-gas in stove as 0.25~0.5 using atomizing air with the mass ratio of attapulgite clay suspension through two-fluid spray nozzle, the fine particle in flue gas is made to reunite to grow up, be conducive to follow-up conventional dust removal equipment trapping, so as to greatly reduce PM in flue gas2.5Discharge capacity, meanwhile, SO in flue gas2And NO2It is also easy to be attracted to suspension and attapulgite particle surface so as to fulfill it is combined removing.

Description

A kind of emission reduction solid fuel ignition PM2.5, SO2And NO2Method
Technical field
The present invention relates to a kind of furnace injection clay suspension emission reduction solid fuel ignition PM2.5、SO2And NO2Method, belong to In environmental pollution prevention and control and clean fuel field of combustion technology.
Background technology
The solid fuel such as burning such as coal, biomass provides thermal energy and electric power for us, and the burning disposal of solid waste, One side recycling corresponding energy the environmental pressures such as reduces waste landfill, stacks, at the same time, also generating a large amount of Fine particle and gaseous pollutant such as SO2, NOx etc..The existing cleaner of the power plant grain size larger to accounting for quality share Particle capture efficiency more than 2.5 microns is very high, but and grain size larger to volume share in flue gas is less than or equal to 2.5 microns (PM2.5) particle capture efficiency it is not high, especially to PM1Collection efficiency it is then lower, a large amount of fine graineds is caused to enter environment In.The PM that the power plant such as burned coal gangue, solid waste are discharged into air especially mixes in power plant2.5It is enriched with toxic organic pollution With each trace elements, human morbidity and the death rate can be not only improved, seriously affects people's health, but also can be induced complete The major events such as ball climate change, atmospheric visibility reduction, haze weather.Therefore, the PM of emission reduction solid fuel ignition2.5Discharge And the SO in cooperation-removal flue gas2And the gaseous pollutants such as NOx have a very important significance.
It is existing to PM2.5The control technology of discharge mainly has electric reunion, acoustic agglomeration, magnetic coagulation, heat reunion, turbulent flow (boundary Layer) flowing reunion and chemical agglomeration etc..Wherein, it is known as chemical agglomeration using the method for solid absorbent capture submicron particles, Its Agglomeration Mechanism is mainly physical absorption and chemical reaction.At present, the chemical agglomeration of coal-fired fine particle is studied both at home and abroad and led Concentrate on the influence reunited using the common adsorbent such as kaolinite, bauxite to particulate matter and its to one or more of heavy metals Removing effect, carry out the research of chemical agglomeration trapping and few using novel agglomerator.Finding cost-effective agglomerator is Chemical agglomeration method promotes the key of particulate matter reunion trapping.The green attapulgite of attapulgite clay alias, Palygorskite are a kind of layers The rare clay mineral of the zeopan containing Shuifu County of chain structure, adsorption site existing for larger reference area and its surface Make it have control fuel combustion PM2.5, collaboration reduce SO2And NO2The great potential of discharge.
Invention content
Technical problem：The present invention provides a kind of emission reduction solid fuel ignition PM2.5、SO2And NO2Method, cigarette can be solved Fine particle content is big in gas, it is difficult to which the problem of being trapped by follow-up cleaner realizes furnace injection clay suspension emission reduction fuel PM in combustion product gases2.5And SO in cooperation-removal flue gas2And NO2Method.
Technical solution：A kind of emission reduction solid fuel ignition PM of the present invention2.5、SO2And NO2Method, using furnace injection The method of clay suspension, this method include the following steps：
1) attapulgite clay is milled into the particle that grain size is 200-400 mesh sieve, it is dense with 0.1~1% mass percent Degree is added in water or aqueous solution containing surfactant and forms suspension, acid solution is used to adjust suspension pH value as 5~7, no Disconnected stirring forms attapulgite clay suspension；
2) by the 0.01%~0.05% of flue gas volume flow, the suspension that the step 1) obtains is pumped into, according to air Mass ratio with attapulgite clay suspension is 0.25~0.5, and it is 20~50 to be atomized the suspension via two-fluid spray nozzle μm droplet after, spray into below solid fuel fired boiler emulsion zone or dilute-phase zone air outlet, the droplet is mixed with inner flue gas of the stove Collision is closed, fine particle reunion is promoted to grow up, is easy to be trapped by follow-up conventional dust removal equipment；At the same time, droplet or concave convex rod Soil particle is also easy to the SO in absorption flue gas2And NO2, it is made to be captured down, therefore greatly reduce in flue gas for one piece with particle SO2、NO2And PM2.5Discharge capacity, reduce subsequent contamination object emission control systems operating cost.
Wherein,
In the step 1), attapulgite clay is added in water or is formed in the aqueous solution containing surfactant suspension, The surfactant is lignin calcium sulfonate, lignin sodium sulfonate or neopelex.
The surfactant, additive amount 0.5g/L.
In the step 1), the substance for adjusting suspension pH value is phosphoric acid, hydrochloric acid, sulfuric acid or the mixture of three.
Step 2) the solid fuel is coal, gangue, solid waste or biomass and its mixture of above-mentioned fuel.
Boiler in the step 2) includes bubbling fluidized bed, recirculating fluidized bed, fast fluidized bed.
Inner flue gas of the stove is solid fuel in air atmosphere or O in the step 2)2And CO2It burns and generates under mixture atmosphere Flue gas.
Advantageous effect：Compared with prior art, the present invention it has the following advantages：
1) furnace injection clay suspension emission reduction solid fuel ignition PM2.5Cooperation-removal SO2And NO2Method, due to recessed Convex stick clay has larger specific surface area, and there are a variety of adsorption sites on surface so that its strand is in the form of building bridge by cigarette The particulate matter disperseed in gas links together, and intergranular reunion is strengthened.SO in flue gas2、 NO2And fine particle absorption On attapulgite clay surface, SO in flue gas is reduced2、NO2Concentration of emission and PM2.5Number density and mass concentration, Grain grain size has the tendency that shifting from sub-micron to ultra micro rice, effectively reduces fuel combustion fine particle, SO2And NO2Discharge Amount, this method are higher to the removal efficiency of fine particle compared with the method for the typical additives such as other addition kaolinites, to fine particle PM2.5Emission reduction rate is up to more than 80%, to PM0.1Emission reduction rate is up to more than 85%；With the method phase of back-end ductwork injection suspension Than this method is more convenient, and without increasing reunion room, and can cooperate with SO in emission reduction flue gas2And NO2, an even volatile huge sum of money Belong to.
2) attapulgite clay is added to 0.1~1% mass percent concentration in water or containing the water-soluble of surfactant Suspension is formed in liquid.After tested, suspension of the mass percent concentration of attapulgite clay less than 0.1% fires solid fuel Burn PM2.5Emission reduction effect it is undesirable, and mass percent concentration be more than 1% when effect it is good but uneconomical；It is added into aqueous solution Surfactant is conducive to strengthen clay suspension in wetting, the effect of adsorption particle object, obtains the trapping of preferable fine particle Effect, and play removing SO2And NO2Effect.
3) suspension sprays into fluid bed emulsion zone or dilute-phase zone, and suspension has the sufficient time to be mixed with flue gas, beneficial to outstanding The collision of turbid and fine particle promotes the reunion of fine particle to grow up and adsorb the SO in flue gas2、NO2。
4) mass ratio of atomizing air and attapulgite clay suspension is 0.25-0.5.Experiment proves that if mass ratio is less than 0.25, then atomizing effect is bad, influences capture rate of this method to fine particle, after mass ratio is more than 0.5, although atomization is more Uniformly, but energy consumption increases, and economy does not have advantage.
5) attapulgite clay derives from a wealth of sources, price economy, environmental-friendly, and agglomeration process flow is simple, easy to operate, does not pollute Environment, this method are higher compared with the method economy of the additives such as other addition titanium oxide.
Description of the drawings
Fig. 1 is furnace injection clay suspension emission reduction solid fuel ignition PM2.5、SO2And NO2Plant system drawing；
Have in figure：1-CFB burner hearth ontologies；2- feeding systems；3- cooling waters；4- air compartments；5- oil removing dehumidifiers；6- is buffered Tank；7- flowmeters；8- emulsion zone jet ports；9- dilute-phase zone jet ports；10- back-end ductworks；11- back-end ductworks monitoring point controls Valve；12- exhanst gas outlet valves；13- peristaltic pumps；14- suspensions.
Fig. 2 sprays clay suspension emission reduction PM for dilute-phase zone2.5Performance map, wherein Fig. 2 a be number density distribution, Fig. 2 b For PM2.5Capture rate.
Fig. 3 sprays clay suspension emission reduction PM for emulsion zone2.5、SO2And NO2Performance map, wherein Fig. 3 a be number density Distribution, Fig. 3 b are PM2.5Capture rate；Fig. 3 c are SO2And NO2Emission reduction rate.
Specific embodiment
With reference to the accompanying drawings of the specification and specific embodiment, the present invention is furture elucidated.
In the preferred embodiment of the present invention, attapulgite clay is milled into the particle of grain size 200-400 mesh sieve, with 0.1~1% Mass percent concentration be added in water or formed in the aqueous solution containing surfactant suspension, adjusted using acid solution outstanding Turbid pH value is 5~7, is stirred continuously suspension.Accounting for flue gas flow percent by volume by suspension volume flow by liquid pump is 0.01%~0.05%, suspension is pumped into below boiler emulsion zone or dilute-phase zone air outlet, atomizing air and attapulgite clay The mass ratio of suspension is 0.25~0.5, and suspension atomization is 20~50 μm of droplet by two-fluid spray nozzle, the droplet with Solid fuel ignition flue gas mixes, one side droplet and SO2And NO2It contacts and is adsorbed on surface, another aspect droplet makes cigarette Fine particle reunion in gas is grown up, and is conducive to follow-up conventional dust removal equipment trapping, is greatly reduced PM in flue gas2.5Discharge capacity, And the SO in cooperation-removal flue gas2And NO2, be conducive to the cleaning discharge of solid fuel ignition flue gas.
The attapulgite clay is natural mineral matter, and large specific surface area, for every gram of soil up to 350 more than ㎡, water imbibition is strong, General reachable more than 150%, chemical property is relatively stablized.Adsorption site existing for its huge reference area and its surface make its Fuel combustion PM2.5Emission reduction, SO2And NO2There are very big potentiality in terms of Collaborative Control.Attapulgite clay suspension passes through nozzle atomization By SO after being mixed with flue gas2、NO2Adsorbing and removing shows as the process that fine particle reunion is grown up：Attapulgite clay suspension Be atomized as fine drop, in burner hearth with SO in flue gas2、NO2And particulate matter especially sub-micron, nano-scale particle are touched It hits and is soaked, make it easier to absorption in droplet surface, then the drop of particle surface is being adsorbed by high temperature evaporation, particulate matter Reunite under bridging action and grow up.Its principle is that the particulate matter of dispersion is connected to one by attapulgite clay strand in the form of building bridge It rises, forms bulk or chain, with the evaporation of suspension, intergranular liquid bridge power is gradated as solid bridge power, intergranular group Poly- power is strengthened.The main reason for generating bridge formation is the adsorption-flocculation that attapulgite clay suspension has.Further, since combustion Main soluble ion Cl in coal fine grained2-、SO4 2-Hydration free it is low, fine particle is preferentially transferred to water after being wet In, cation improves the surface potential of particle by particle surface is stayed in, and is also beneficial to fine particle reunion.
Suspension is neutrality, adjusts its pH value using phosphoric acid or hydrochloric acid or sulfuric acid or its mixture, is at acidity Environmental benefits are in further reduction PM2.5Discharge capacity the main reason is that acidic environment is conducive to remove the impurity in clay, makes Clay surface charge in water and structure charge change, so as to change its charging property, the brilliant beam of scatter-gather state, dissolving Octahedral cations expand micropore canals etc. to purify attapulgite clay and improve ion-exchange capacity, at the same time, improve Its specific surface area is to strengthen its physical absorption performance.
Fig. 1 show furnace injection clay suspension emission reduction solid fuel ignition PM2.5、SO2And NO2Plant system drawing, it is main It to be made of the part such as recirculating fluidized bed ontology, supply air system, feeding system, revert system, electric-control system, spraying system.It is real It is Xuzhou bituminous to test with fuel, and as-fired coal grain size is 0.6-1.6mm.It is 900 DEG C that ignition temperature is controlled in experimentation, is tested It carries out, 1kg/h Xuzhou bituminous is sent by screw feeder in stove, air compressor machine provides a Secondary Air to burner hearth and helps under air atmosphere Full combustion of fuel.Uncombusted coal particle returns to burner hearth and burns away through cyclone separator, dipleg, material returning device.Using flue gas point O in analyzer on-line checking flue gas2、CO、CO2、SO2、NO、NO2Wait ingredients, auxiliary monitoring fuel combustion situation and analysis spraying Suspension is to SO in flue gas2And NO2Discharges is waited to influence.Attapulgite clay is milled into the particle of grain size 200-400 mesh sieve, by 1% Mass percent concentration be added in water and form suspension, suspension pH value is 7, suspension is stirred continuously, by suspended liquid It is 0.01%~0.05% that product flow, which accounts for flue gas flow percent by volume, and suspension is pumped into fluidized-bed combustion boiler emulsion zone or dilute phase The mass ratio of area, atomizing air and attapulgite clay suspension is 0.5, and suspension atomization is 20~50 μm by two-fluid spray nozzle Droplet, the droplet mixes with stove fuel combustion flue gas and adsorbs SO in flue gas2、NO2, while fine particle is promoted to reunite It grows up, is conducive to the trapping of follow-up conventional dust removal equipment, so as to reduce SO in flue gas2、 NO2And PM2.5Discharge capacity.Tail portion Flue gas is after incising control is 10 μm of cyclone separator by charged low pressure impactor (ELPI) to the particulate matter grain in flue gas Diameter and number concentration distribution etc. are monitored, and PM in flue gas can be obtained based on ELPI on-line checkings data2.5Quantity and quality point Cloth uses flue gas analyzer to monitor with analysis spraying suspension to gaseous pollutant in flue gas flue gas main component on-line Such as SO2、NO2Deng discharge influence.
Experimental result is as shown in Fig. 2, after dilute-phase zone injection clay suspension, and decline is presented in particulate count metric density in flue gas Trend.Such as Fig. 2 a, after dilute-phase zone sprays suspension, PM2.5Number density substantially reduce, with the increase of flow, PM2.5's Number density declines to a great extent under each particle size range；Such as Fig. 2 b, compared with raw flue gas, dilute-phase zone injection 9.5ml/min hangs Turbid is to PM2.5, PM1And PM0.1Arresting efficiency respectively up to 39.7%, 39.8% and 60.2%；When flow increases to During 38ml/min, PM2.5, PM1And PM0.1Arresting efficiency respectively increase to 85.5%, 85.7% and 92.2%.Fig. 3 institutes Be shown as in emulsion zone spray into suspension to emission reduction PM2.5、 SO2And NO2Influence as a result, Fig. 3 a can show with suspended liquid stream The increase of amount, PM2.5Substantially on a declining curve in the number density of each particle size range, such as Fig. 3 b, suspended flow quantity is 9.5ml/ During min, PM in flue gas0.1、PM1And PM2.5Number density reduces by 84.1%, 79.1% and 79% respectively；When suspended flow quantity During for 38ml/min, PM in flue gas0.1、PM1And PM2.5Number density reduces 93.7%, 93.5% and 93.6% respectively；Such as Fig. 3 c, after spraying suspension, the SO in flue gas2And NO2Concentration of emission declines, the SO when emulsion zone sprays 38ml/min2With NO2Concentration of emission has dropped 60% and 55% respectively；And then decline respectively both when dilute-phase zone sprays same traffic suspension 48% and 70%.It can be seen that furnace injection suspension both can promote the reunion of fine particle to grow up, it is follow-up to be conducive to it Cleaner traps, and is also beneficial to SO in cooperation-removal flue gas2And NO2Gaseous pollutants are waited, so as to fulfill substantially emission reduction fine grained Object and SO2Pollutants are waited, substantially reduce the operating cost of follow-up flue gas polution control device, realize solid fuel ignition flue gas Cleaning discharge.
Above example is only that the present invention program is further elaborated with, after the embodiment of the present invention has been read, Those of ordinary skill in the art without departing from the principle of the present invention, to the various equivalent forms of the claims in the present invention Modification and replaced technical solution, belong to the protection domain that the present patent application claim is limited.

Claims (7)

1. a kind of emission reduction solid fuel ignition PM2.5、SO2And NO2Method, which is characterized in that it is suspended using furnace injection clay The method of liquid, this method include the following steps：
1) attapulgite clay is milled into the particle that grain size is 200-400 mesh sieve, is added with 0.1~1% mass percent concentration It is added in water or aqueous solution containing surfactant and forms suspension, acid solution is used to adjust suspension pH value as 5~7, is constantly stirred It mixes to form attapulgite clay suspension；
2) by the 0.01%~0.05% of flue gas volume flow, be pumped into the suspension that the step 1) obtains, according to air with it is recessed The mass ratio of convex stick clay suspension is 0.25~0.5, and it is 20~50 μm to be atomized the suspension via two-fluid spray nozzle After droplet, spray into below solid fuel fired boiler emulsion zone or dilute-phase zone air outlet, the droplet is mixed with inner flue gas of the stove to be touched It hits, fine particle reunion is promoted to grow up, be easy to be trapped by follow-up conventional dust removal equipment；At the same time, droplet or attapulgite Grain is also easy to the SO in absorption flue gas2And NO2, it is made to be captured down for one piece with particle, therefore greatly reduce SO in flue gas2、 NO2And PM2.5Discharge capacity, reduce subsequent contamination object emission control systems operating cost.
2. emission reduction solid fuel ignition PM as described in claim 12.5、SO2And NO2Method, which is characterized in that the step 1) in, attapulgite clay is added in water or is formed in the aqueous solution containing surfactant suspension, and the surfactant is Lignin calcium sulfonate, lignin sodium sulfonate or neopelex.
3. emission reduction solid fuel ignition PM as described in claim 22.5、SO2And NO2Method, which is characterized in that the surface Activating agent, additive amount 0.5g/L.
4. emission reduction solid fuel ignition PM as described in claim 12.5、SO2And NO2Method, which is characterized in that the step 1) in, the substance for adjusting suspension pH value is phosphoric acid, hydrochloric acid, sulfuric acid or the mixture of three.
5. emission reduction solid fuel ignition PM as described in claim 12.5、SO2And NO2Method, which is characterized in that the step 2) solid fuel is coal, gangue, solid waste or biomass and its mixture of above-mentioned fuel.
6. emission reduction solid fuel ignition PM as described in claim 12.5、SO2And NO2Method, which is characterized in that the step 2) boiler in includes bubbling fluidized bed, recirculating fluidized bed, fast fluidized bed.
7. emission reduction solid fuel ignition PM as described in claim 12.5、SO2And NO2Method, which is characterized in that the step 2) inner flue gas of the stove is solid fuel in air atmosphere or O in2And CO2Burn the flue gas of generation under mixture atmosphere.
CN201810004315.1A 2018-01-03 2018-01-03 A kind of emission reduction solid fuel ignition PM2.5, SO2And NO2Method Pending CN108261868A (en)

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CN104147890A (en) * 2014-08-28 2014-11-19 东南大学 Method for trapping coal-fired PM2.5 by using agglomeration of attapulgite turbid liquid
CN106929121A (en) * 2017-02-08 2017-07-07 华中科技大学 A kind of method of utilization attapulgite reduction Combustion Source particulate matter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102179161A (en) * 2011-05-04 2011-09-14 山东大学 Slurry for desulfuration and denitration of recirculating fluidized bed boiler
CN102527184A (en) * 2012-03-16 2012-07-04 山东大学 Method and system for discharge reduction of superfine particulate matters in dusty flue gas
CN104147890A (en) * 2014-08-28 2014-11-19 东南大学 Method for trapping coal-fired PM2.5 by using agglomeration of attapulgite turbid liquid
CN106929121A (en) * 2017-02-08 2017-07-07 华中科技大学 A kind of method of utilization attapulgite reduction Combustion Source particulate matter

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Application publication date: 20180710