CN105709597B - A kind of the flue gas ash removal mercury removal device and its processing method of plasma reactor joint membrane bag filter - Google Patents
A kind of the flue gas ash removal mercury removal device and its processing method of plasma reactor joint membrane bag filter Download PDFInfo
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- CN105709597B CN105709597B CN201610228072.0A CN201610228072A CN105709597B CN 105709597 B CN105709597 B CN 105709597B CN 201610228072 A CN201610228072 A CN 201610228072A CN 105709597 B CN105709597 B CN 105709597B
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- flue gas
- bag filter
- membrane bag
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D51/00—Auxiliary pretreatment of gases or vapours to be cleaned
- B01D51/02—Amassing the particles, e.g. by flocculation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/2073—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
Abstract
The present invention provides the flue gas ash removal mercury removal devices and its processing method of a kind of plasma reactor joint membrane bag filter, described device is two-part structure, including plasma reactor and sack cleaner, plasma reactor is connected with sack cleaner by air inlet pipe, membrane bag filter built in sack cleaner.Plasma is combined by the present invention with membrane bag filter, make the dust generation in flue gas charged using the effect of plasma and coalescence occurs, the oxygen radical in plasma can be with oxidizing simple substance mercury simultaneously, then gas is when by membrane bag filter, on the one hand micronic dust can be removed, demercuration catalyst on another aspect filter bag can further oxidation removal Elemental Mercury, and the oxygen radical that plasma generates can also improve catalyst activity, so as to improve the removal efficiency of fine particulates and Elemental Mercury.
Description
Technical field
The invention belongs to filed of flue gas purification, be related to a kind of flue gas ash removal mercury removal device and its processing method more particularly to
A kind of the flue gas ash removal mercury removal device and its processing method of plasma reactor joint membrane bag filter.
Background technology
Coal-burning power plant and petrochemical industry can generate a large amount of dust, SO in its combustion processx、NOxOr heavy metal etc.
Multiple pollutant.In recent years, with the enhancing increasingly improved with people's environmental consciousness of environmental regulation, fine particulates and a huge sum of money
Belong to two kinds of pollutants because it has environment and human body the great attention that domestic and international researcher is received during greatly harm.In order to
Environmentally friendly dynamics is increased, improves environment, the emission standard of air pollutants for boilers regulation that on May 16th, 2014 is newly issued creates combustion
The maximal emission standard of coal burning boiler particulate matter is 50mg/m3, key area discharge standard is 30mg/m3, and the row of Elemental Mercury
It puts standard and also drops to 0.05mg/m3.Fine particulates are primarily referred to as the solid particulate matter of equivalent aerodynamic diameter≤10 μm,
Since grain size is smaller, specific surface area greatly increases, easily as other poisonous and harmful substance (such as acidic oxides, toxic heavy metal
Deng) carrier or reactant.Fine particulates have environment and human health very big harm, there is studies have shown that fine particulates
Particularly PM2.5 has important influence to the reduction of atmospheric visibility, compared with coarseparticulate, fine particle (PM2.5) drop
The ability of low visibility is stronger, is the main reason for leading to haze weather.In addition less than 10um particle can by nose into
Enter lung, cause respiratory tract and pulmonary disease.
Removing for particulate matter in flue gas, the type for industrially having deduster is very more, such as existing cyclone dust collectors
It is poor to the removal effect of fine particulates with the industrial dedustings technology such as bag filter, and electrostatic precipitator and hydrofilter
It is difficult to trap 0.1~1 μm of dust particale.So for the removing of industrial fine particulates, researcher proposes a variety of
New and effective dedusting technology, such as promotes and improves that the dedusting of low pressure drop high efficiency electrostatic, wet static dedusting technology, bag is compound removes for electricity
The method of the novel removing particulate object such as dirt technology and plasma method, to improve the removal efficiency of fine particulates.
Generally there are three types of forms for mercury in flue gas：Particulate Hg, mercury oxide and Elemental Mercury.Wherein particulate Hg and mercury oxide can be with
It is removed in the devices such as subsequent desulfurization, can also be attached on particulate matter and be removed by dust-extraction unit, but due to the height volatilization of Elemental Mercury
Property and low aqueous solubility, make it be difficult to be removed by above device, and are discharged into air with flue gas, cause environmental pollution.
CN 101693465A disclose a kind of integral denitration demercuration method of absorbing synergic plasma effect, be
Nitrogen is added in gas containing nitric oxide and mercury and is mixed, makes it through crest voltage not less than 3000 volts, pulse electricity
Source frequency is not less than 500 hertz of high-frequency and high-voltage electric field, realizes denitration demercuration simultaneously.Although absorbing synergic etc. is utilized in this method
The method of gas ions, but its to treat the removal effect of fine particulates in processing gas poor, while Elemental Mercury is gone
Except effect is also undesirable.
CN 101716451A disclose a kind of discharge plasma and are combined removing various pollutants in fume with absorbing
Method.Coal-fired or incineration flue gas after electric precipitation or bag-type dust processing, is passed sequentially through prewashing column, level-one is put by the method
Electro-plasma reactor, first grade absorption tower, two-stage discharge plasma reactor and two-level absorption tower.Prewashing column is used for cigarette
Gas preliminary clearning, cooling and absorbing liquid concentration；Level-one discharging plasma reactor aoxidizes for NO and fine particle is charged, traps
Removing；First grade absorption tower is used for SO2、NOxIt washs and removes with charged fine particle；Two-stage discharge plasma reactor is for member
The oxidation of plain Hg and acid mist, the charged and trapping removing of ammonium mist；Two-level absorption tower is for oxidation state Hg and other pollutants
Washing removing.But this method is poor to the fine particulates particularly removal effect of PM2.5, and Elemental Mercury therein is equally difficult
To be removed, and it is discharged into air with flue gas.
Invention content
For the above-mentioned prior art fine particulates of the grain size in flue gas less than 10um and Elemental Mercury are difficult to remove
Problem, flue gas ash removal mercury removal device and its processing side the present invention provides a kind of plasma reactor joint membrane bag filter
Method.Plasma is combined by the method with membrane bag filter, and the dust in flue gas is made to generate lotus using the effect of plasma
Simultaneously coalescence occurs for electricity, while the oxygen radical in plasma can be with oxidizing simple substance mercury, and then gas is by bag-type dusting
When the membrane bag filter of device, micronic dust on the one hand can be removed, the demercuration catalyst on another aspect filter bag can further oxygen
Change removing Elemental Mercury, and the oxygen radical that plasma generates can improve catalyst activity.Device of the present invention and processing
Method can greatly improve the removal efficiency of fine particulates and the oxidation removal efficiency of Elemental Mercury, and reduce plasma
The abrasion of energy consumption and filter bag.
For this purpose, the present invention uses following technical scheme：
In a first aspect, the present invention provides a kind of flue gas ash removal mercury removal device, described device includes plasma reactor
And sack cleaner, plasma reactor are connected with sack cleaner by air inlet pipe, membrane bag filter built in sack cleaner.
In the present invention, plasma in plasma reactor for fine particulates of the diameter less than 10um have compared with
The effect of good charged coalescence, when flue gas passes through plasma reactor, in plasma environment, the particulate matter in flue gas can produce
Raw heteropolarity is charged, since particulate matter carries xenogenesis charge, is acted in electric field force and Coulomb force, fine particulates constantly carry out heat
Movement is collided and generates coalescence, and particularly some superfine particulate matters can be with electrophoretic type reaches ash surface and is attached to big
On particulate matter and then removed, and a large amount of living radical can be generated in plasma reactor, can with oxidizing simple substance mercury,
And the oxygen radical that plasma generates can improve catalyst activity in subsequent process.
Membrane bag filter adherency load has the polytetrafluoroethylene ethylene layer of catalyst in the present invention, can further remove micronic dust and
Elemental Mercury has higher micronic dust and Elemental Mercury removal efficiency, and can reduce plasma energy consumption.
The size of plasma reactor and sack cleaner of the present invention can be adjusted according to handled exhaust gas volumn
It is whole.
As the preferred embodiment of the present invention, the plasma reactor is line plank frame, can using line plank frame
To facilitate the collection of particulate matter.
As the preferred embodiment of the present invention, the plasma reactor includes electrode, which is high-field electrode, electric
It presses for 0~100KV and not including 0.
Preferably, the electrode is connected with power supply.
Preferably, the power supply is high frequency electric source, and the high frequency electric source refers to supply frequency range more than 100KHz again
Power supply has higher electric energy conversion efficiency and preferable charged intensity using high-frequency electrode.
Preferably, the power supply is any one in power of alterating and direct current, the pulse power or radio-frequency power supply.
Preferably, the outer wall of the plasma reactor is connected with ground wire.
As the preferred embodiment of the present invention, the sack cleaner further includes air-purifying chamber, and air-purifying chamber is located at membrane bag filter
Exit, the fume collection after membrane bag filter purified treatment are outer in air-purifying chamber, then by the progress of sack cleaner outlet pipe
Row.
As the preferred embodiment of the present invention, the membrane bag filter is made with polyimide fiber and/or polytetrafluoroethylene material
For scrim material, the polytetrafluoroethylene ethylene layer for loading and having catalyst is adhered in scrim material.
Preferably, the catalyst is demercuration catalyst.
Preferably, the demercuration catalyst is Mn-Ce/TiO2Catalyst, it is not limited to Mn-Ce/TiO2Catalyst,
The catalyst that its spy can carry out demercuration catalysis is equally applicable to the present invention, but with Mn-Ce/TiO2Catalyst effect is optimal.It is described
Demercuration catalyst can reduce reaction temperature, have higher demercuration ability.
Second aspect, the present invention provides the processing method of above-mentioned flue gas ash removal mercury removal device, the method is：
Pending flue gas first it is plasma-treated removing dust particle and preliminary demercuration after, carry out membrane bag filter dedusting
And demercuration is further catalyzed, finally obtain purified flue gas.
As the preferred embodiment of the present invention, the corona treatment carries out in plasma reactor.
Preferably, the processing voltage of the corona treatment for 0~100KV and not include 0, such as 5kV, 10kV,
30kV, 50kV, 70kV or 100kV etc., it is not limited to cited numerical value, other interior numerical value of listed range are feasible.
As the preferred embodiment of the present invention, the membrane bag filter dedusting carries out in sack cleaner.
As the preferred embodiment of the present invention, used catalyst is demercuration catalyst in the membrane bag filter dedusting.
Preferably, the demercuration catalyst is Mn-Ce/TiO2Catalyst.
Preferably, the temperature of the membrane bag filter dedusting be 150~300 DEG C, such as 150 DEG C, 170 DEG C, 200 DEG C, 230
DEG C, 250 DEG C, 270 DEG C or 300 DEG C etc., it is not limited to cited numerical value, other numerical value are feasible in listed range.
As the preferred embodiment of the present invention, the method is：
Pending flue gas is introduced into plasma reactor, and plasma-treated removing dust particle takes off with preliminary
After mercury, membrane bag filter dedusting is carried out into sack cleaner and is further catalyzed demercuration, finally obtains purified flue gas.
In the present invention, pending flue gas is introduced into plasma reactor, in plasma reactor, in order to allow dust
With charged, first have to that a large amount of gas ion can be obtained.Under the action of plus high-voltage field, in plasma reactor, gas
Body molecular ionization goes out electronics and ion, and the high energy electron of generation is then sent out again with other gas molecule collisions, gas ionization aggravation
Raw electron avalanche, generates a large amount of charged particle, and entire reactor finally contains a large amount of high energy electrons, ion and free radical.Band
Charged particle makes it with charged under electric field action when chaotic warm-up movement is collided with dust when diffusion.Plasma makes to lead to
The charge of different (positive and negative), mutually attracts, coacervating large particle certainly under the action of Coulomb force on the dust band crossed, by etc.
Intergranular coalescence effect, can effectively collect the fine particulates of as low as submicron order in gas ions.In dust
After charged, as collecting plate movement under electric field action, discharge charge after reaching pole plate and deposit.Further, since plasma
A large amount of living radical is generated in body, series of chemical can occur, can also effectively be taken off elemental mercury oxidation
It removes.
After plasma-treated removing dust particle and preliminary demercuration, membrane bag filter is carried out into sack cleaner
Dedusting, the scrim material inside membrane bag filter can effectively further remove the particulate matter in flue gas, and then flue gas is through load
Have the polytetrafluoroethylene ethylene layer of catalyst, can effectively remaining Elemental Mercury in oxidation removal flue gas, reach while efficient de-
Except fine particulates and Elemental Mercury, to meet environmental requirement.
Compared with prior art, the invention has the advantages that：
Plasma is combined by the present invention with membrane bag filter, generates the dust in flue gas using the effect of plasma
It is charged and coalescence occurs, while the oxygen radical in plasma can be with oxidizing simple substance mercury, then gas is filtered by overlay film
When bag, micronic dust on the one hand can be removed, the demercuration catalyst on another aspect filter bag can further oxidation removal simple substance
Mercury, and the oxygen radical that plasma generates can also improve catalyst activity, make the fine particulates removal efficiency in flue gas
It is more than 99%, the removal efficiency of Elemental Mercury is more than 95%, and the energy consumption of plasma is made to be reduced relative to the prior art
20% or so.
Description of the drawings
Fig. 1 is the structure diagram of flue gas ash removal mercury removal device of the present invention；
Fig. 2 is the structure diagram of flue gas ash removal mercury removal device plasma reactor；
Fig. 3 is the sectional view of the Section A-A of plasma reactor；
Fig. 4 is the structure diagram of membrane bag filter in flue gas ash removal mercury removal device；
Wherein, 1- air inlet pipe, 2- plasma reactors, 3- sack cleaners, 4- outlet pipes, 5- electrodes, 6- power supplys,
7- is grounded, 8- scrim materials, 9- polytetrafluoroethylene ethylene layers, 10- air inlets, 11- membrane bag filters, 12- air-purifying chambers, 13- gas outlets.
Specific embodiment
Below in conjunction with several specific embodiments, exemplary illustration and help further understand the present invention, but embodiment has
Body details does not represent whole technical solutions under present inventive concept, therefore should not be construed as to this merely to illustrate the present invention
It invents total technical solution to limit, some are changed, such as with tool without departing from the unsubstantiality of inventive concept in technical staff
The technical characteristic for having same or similar technique effect simply changes or replaces, and belongs to the scope of the present invention.
As shown in Figure 1,2 and 3, the present invention provides a kind of flue gas ash removal mercury removal devices, and it is anti-that which includes plasma
Device 2 and sack cleaner 3 are answered, plasma reactor 2 is connected with sack cleaner 3 by air inlet pipe 1, in sack cleaner 3
Put membrane bag filter 11.
The plasma reactor 2 is line plank frame, and including electrode 5, electrode can be various shapes such as zigzag etc.,
Electrode 5 is connected with power supply 6, and power supply 6 is high frequency electric source, is further power of alterating and direct current, arbitrary in the pulse power or radio-frequency power supply
It is a kind of.
The outer wall of the plasma reactor 2 is connected with ground wire 7.
The sack cleaner 3 further includes air-purifying chamber 12, and air-purifying chamber 12 is located at the exit of membrane bag filter 11, air-purifying chamber 12
It is connected with outlet pipe 4, outlet pipe 4 picks out air port 13.
The membrane bag filter 11 is using polyimide fiber and/or polytetrafluoroethylene material as scrim material 8, in base fabric material
Adherency load has the polytetrafluoroethylene ethylene layer 9 of catalyst on material 8, and structure is as shown in Figure 4；The catalyst is demercuration catalyst；Institute
Demercuration catalyst is stated as Mn-Ce/TiO2Catalyst.
Embodiment 1：
Present embodiments provide a kind of following flue gas ash removal mercury removal device：
Described device is two-part structure, including plasma reactor 2 and sack cleaner 3, plasma reactor 2
It is connected with sack cleaner 3 by air inlet pipe 1, membrane bag filter 11 built in sack cleaner 3.
The plasma reactor 2 be line plank frame, including electrode 5, electrode 5 is connected with power of alterating and direct current 6, wait from
The outer wall of daughter reactor 2 is connected with ground wire 7.
Shown sack cleaner 3 further includes air-purifying chamber 12, and air-purifying chamber 12 is located at the exit of membrane bag filter 11, air-purifying chamber 12
It is connected with outlet pipe 4, outlet pipe 4 picks out air port 13.
Using polyimide fiber material as scrim material 8, adhere to load in scrim material 8 has the membrane bag filter 11
The polytetrafluoroethylene ethylene layer 9 of catalyst, the catalyst are Mn-Ce/TiO2Catalyst.
Simulated flue gas is handled using above device, fine particulates content is 5g/m in the simulated flue gas3, it is single
Matter mercury content is 20ug/m3, processing method is as follows：
Pending simulated flue gas enters plasma reactor 2, the high-voltage electricity of plasma reactor 2 through air inlet 10
Pole forms the high voltage electric field that voltage is 50KV with reactor, makes gas ionization and contains a large amount of charged particles, subtle in flue gas
Particulate matter takes different charges by electric-field charge and diffusional charging when passing through electric field, and charged particle is carried out under electric field action
Constantly the soot dust granule of greater particle size is agglomerated into, while some active oxygen radicals are generated in plasma, aoxidizes the list in flue gas
Matter mercury, the plasma-treated flue gas removed after dust particle and preliminary demercuration pass through air inlet pipe 1 and enter sack cleaner 3
In membrane bag filter 11, can be further by the micronic dust in flue gas by polyimide fiber scrim material 8 in the membrane bag filter 11
It filters, the Elemental Mercury in flue gas then has Mn-Ce/TiO by attached load2The polytetrafluoroethylene ethylene layer 9 of catalyst carries out oxidation removal,
Wherein, the temperature of membrane bag filter dedusting is 200 DEG C, and then flue gas is discharged through air-purifying chamber 12, outlet pipe 4 and gas outlet 13 and filled
It puts.
Fine particulates content is 10~30mg/m in the flue gas that eventually passes through that treated3, simple substance mercury content for 0.8~
2ug/m3, i.e. particulate matter removing efficiency is more than 99%, and the removal efficiency of Elemental Mercury is more than 90%, and make the energy of plasma
Consumption reduces 20% or so relative to the prior art.
Embodiment 2：
In the device that the present embodiment uses other than power supply 6 is the pulse power, the other component and connection mode of device are equal
It is in the same manner as in Example 1.
Simulated flue gas is handled using the flue gas ash removal mercury removal device, in addition to the high-voltage electricity of plasma reactor 2
Pole forms the voltage of 50KV with reactor, and the temperature of membrane bag filter dedusting is outer for 300 DEG C, and processing method is in the same manner as in Example 1,
It is 10~30mg/m to make to eventually pass through fine particulates content in treated flue gas3, simple substance mercury content is 0.6~1.5ug/
m3, i.e. particulate matter removing efficiency is more than 99%, and the removal efficiency of Elemental Mercury is more than 92%, and make the energy consumption phase of plasma
25% or so is reduced for the prior art.
Embodiment 3：
The device and connection mode that the present embodiment uses are in the same manner as in Example 1.
Simulated flue gas is handled using the flue gas ash removal mercury removal device, in addition to the high-voltage electricity of plasma reactor 2
Pole forms the voltage of 100KV with reactor, and the temperature of membrane bag filter dedusting is outer for 150 DEG C, processing method and phase in embodiment 1
Together, it is 10~30mg/m to make to eventually pass through fine particulates content in treated flue gas3, simple substance mercury content for 0.6~
1.5ug/m3, i.e. particulate matter removing efficiency is more than 99%, and the removal efficiency of Elemental Mercury is more than 93%, and make plasma
Energy consumption reduces 22% or so relative to the prior art.
Comparative example 1：
This comparative example is handled simulated flue gas only with plasma reactor 2, the content of simulated flue gas and implementation
Identical in example 1, the structure and processing procedure of plasma reactor 2 are in the same manner as in Example 1, the cigarette that eventually passes through that treated
Fine particulates content is 0.8g/m in gas3, simple substance mercury content is 4.5ug/m3, i.e. particulate matter removing efficiency is 85% or so, single
The removal efficiency of matter mercury is 75% or so.
Comparative example 2：
This comparative example is handled simulated flue gas only with sack cleaner 3, in the content of simulated flue gas and embodiment 1
Identical, the structure and processing procedure of sack cleaner 3 are in the same manner as in Example 1, subtle in the flue gas that eventually passes through that treated
Particle content is 0.1g/m3, simple substance mercury content is 6.5ug/m3, i.e. particulate matter removing efficiency is 95% or so, and Elemental Mercury takes off
Except efficiency is 65% or so.
The result of integrated embodiment 1-3 and comparative example 1-2 can be seen that the present invention and mutually ties plasma with membrane bag filter
Close, dust in flue gas is made to generate charged using the effect of plasma and occur coalescence, at the same in plasma it is oxygen-containing oneself
Can be with oxidizing simple substance mercury by base, then on the one hand gas can remove micronic dust, on the other hand filter when by membrane bag filter
Demercuration catalyst on bag can further oxidation removal Elemental Mercury, and the oxygen radical that plasma generates can also be improved and be urged
Agent activity, it is more than 99% to make the fine particulates removal efficiency in flue gas, and the removal efficiency of Elemental Mercury is more than 92%, and
And the energy consumption of plasma is made to reduce 20% or so relative to the prior art.
Applicant states that the present invention illustrates the method detailed of the present invention, but not office of the invention by above-described embodiment
It is limited to above-mentioned method detailed, that is, does not mean that the present invention has to rely on above-mentioned method detailed and could implement.Technical field
Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to each raw material of product of the present invention
Addition, selection of concrete mode etc., all fall within protection scope of the present invention and the open scope.
Claims (14)
1. a kind of flue gas ash removal mercury removal device, which is characterized in that described device is two-part structure, including plasma reactor
(2) it is connected with sack cleaner (3), plasma reactor (2) with sack cleaner (3) by air inlet pipe (1), bag-type dusting
Membrane bag filter (11) built in device (3)；
The plasma reactor (2) includes electrode (5), and the electrode (5) is connected with power supply (6), and the power supply (6) is height
Frequency power, the high frequency electric source refer to power supply of the supply frequency range in more than 100KHz；
Wherein, the membrane bag filter (11) is using polyimide fiber and/or polytetrafluoroethylene material as scrim material (8),
Adherency load has the polytetrafluoroethylene ethylene layer (9) of catalyst in scrim material (8)；
The catalyst is demercuration catalyst.
2. flue gas ash removal mercury removal device according to claim 1, which is characterized in that the plasma reactor (2) is
Line plank frame.
3. flue gas ash removal mercury removal device according to claim 1, which is characterized in that the power supply (6) for power of alterating and direct current,
Any one in the pulse power or radio-frequency power supply.
4. flue gas ash removal mercury removal device according to claim 1, which is characterized in that the plasma reactor (2)
Outer wall is connected with ground wire (7).
5. flue gas ash removal mercury removal device according to claim 1, which is characterized in that the sack cleaner (3) further includes
Air-purifying chamber (12), air-purifying chamber (12) is positioned at the exit of membrane bag filter (11).
6. flue gas ash removal mercury removal device according to claim 1, which is characterized in that the demercuration catalyst is Mn-Ce/
TiO2Catalyst.
7. according to the processing method of claim 1-6 any one of them flue gas ash removal mercury removal devices, which is characterized in that the side
Method is：
Pending flue gas first it is plasma-treated removing dust particle and preliminary demercuration after, carry out membrane bag filter dedusting go forward side by side
One step is catalyzed demercuration, finally obtains purified flue gas.
8. processing method according to claim 7, which is characterized in that the corona treatment is in plasma reactor
(2) it is carried out in.
9. processing method according to claim 7, which is characterized in that the processing voltage of the corona treatment for 0~
100KV and not include 0.
10. processing method according to claim 7, which is characterized in that the membrane bag filter dedusting is in sack cleaner (3)
Middle progress.
11. processing method according to claim 7, which is characterized in that used catalyst is in the membrane bag filter dedusting
Demercuration catalyst.
12. processing method according to claim 11, which is characterized in that the demercuration catalyst is Mn-Ce/TiO2Catalysis
Agent.
13. processing method according to claim 7, which is characterized in that the temperature of the membrane bag filter dedusting for 150~
300℃。
14. processing method according to claim 7, which is characterized in that the method is：
Pending flue gas is introduced into plasma reactor (2), and plasma-treated removing dust particle takes off with preliminary
After mercury, membrane bag filter dedusting is carried out into sack cleaner (3) and is further catalyzed demercuration, finally obtains purified cigarette
Gas.
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| CN106268223A (en) * | 2016-09-22 | 2017-01-04 | 山东理工大学 | A kind of method of low-temperature plasma synergistic catalyst of transition metal oxide oxidation mercury in flue gas |
| CN107185316B (en) * | 2017-07-13 | 2019-12-03 | 中国石油大学(北京) | A kind of denitrating flue gas dedusting treater and processing method |
| CN112516719A (en) * | 2019-09-18 | 2021-03-19 | 陕西青朗万城环保科技有限公司 | Flue gas washing device |
| CN111318140B (en) * | 2020-03-17 | 2023-04-14 | 天津辰创环境工程科技有限责任公司 | Filtering type medium blocking discharge flue gas purification system and method |
| CN111530247A (en) * | 2020-05-18 | 2020-08-14 | 中钢集团天澄环保科技股份有限公司 | Bag type adsorber for decomposing dioxin plasma |
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| CN104548890A (en) * | 2013-10-23 | 2015-04-29 | 天津市英格环保科技有限公司 | Two-media low-temperature plasma flue gas treatment system |
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| CN101693165A (en) * | 2009-10-20 | 2010-04-14 | 武汉科技学院 | Integral denitration and demercuration method for absorbing synergic plasma |
| CN101716451A (en) * | 2009-12-29 | 2010-06-02 | 北京航空航天大学 | Method for removing various pollutants in fume by combining discharge plasmas and absorption |
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| CN103446805A (en) * | 2013-08-30 | 2013-12-18 | 安徽省元琛环保科技有限公司 | Dedusting and demercuration double-effect functional filter material and preparation method thereof |
| CN104548890A (en) * | 2013-10-23 | 2015-04-29 | 天津市英格环保科技有限公司 | Two-media low-temperature plasma flue gas treatment system |
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