CN106178830B - A kind of method that can activate and spray demercuration adsorbent online simultaneously - Google Patents
A kind of method that can activate and spray demercuration adsorbent online simultaneously Download PDFInfo
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- CN106178830B CN106178830B CN201610615746.2A CN201610615746A CN106178830B CN 106178830 B CN106178830 B CN 106178830B CN 201610615746 A CN201610615746 A CN 201610615746A CN 106178830 B CN106178830 B CN 106178830B
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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
- B01D53/02—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
Abstract
The invention discloses a kind of methods that can activate and spray demercuration adsorbent online simultaneously, it to mercury absorbent activate and spray online by that can activate and spray the device of demercuration adsorbent online simultaneously, wherein, which includes for spraying the injection equipment of mercury absorbent, being arranged in the injection equipment side and the online activation mechanism communicated therewith and the mercury concentration on-line computing model (11) for monitoring mercury in flue gas concentration；According to the obtained mercury concentration of monitoring, damper (4) described in dynamic regulation；Activate the control valve (9) in mechanism described in dynamic regulation online simultaneously；To be activated online to adsorbent, and then realize flue gas demercuration.The method of the invention realizes the activation of the real-time online of mercury absorbent, adapt to the frequent fluctuation of mercury concentration, and largely improve mercury absorbent and active component utilization ratio, reduce the dosage of adsorbent, demercuration cost is greatly saved.
Description
Technical field
The invention belongs to Mercury In Coal Combustion Flue Gas control technology fields, and in particular to one kind can be activated and be sprayed de- online simultaneously
The method of mercury absorbent.
Background technology
Mercury is a kind of neurotoxic substance, has extremely strong cumulative bad and irreversibility, has prodigious threat to human health.
Coal-burning power plant is one of most important artificial mercury pollution source.With the continuous improvement of environmental requirement, efficient, economy, environment are explored
The Mercury vacancy technology of friendly is of great significance.
In the prior art, generally use mercury removal device and the mercury in efficient absorption material removal flue gas, current master are utilized
It studies and concentrates on two aspects of demercuration sorbing material and mercury removal device.The research of demercuration sorbing material is concentrated mainly on and is changed
Become raw material, using different activation methods, different modifying agent and method of modifying etc., currently, generally use chemical solution soaks
Stain method modified adsorbent such as impregnates adsorbent using the chemical solution of sulfur-bearing, halide.Main purpose is to improve adsorbent
Surface functional group increases activated adoption position, to improve its chemical adsorption capacity, improves demercuration performance.For mercury removal device, then lead
If carrying out the removing of mercury in flue gas by structure, the increase circulation and stress mechanism etc. that improve or optimize device.
Such as Chinese patent literature 201120257109.2 discloses a kind of coal-fired flue-gas absorption mercury removal device, is directed to
Demercuration method is adsorbed to coal-fired flue-gas, mercury absorbent is entered with spray regime in the flue of house outlet, and adsorbent is in dedusting
It is fully dispersed in flue gas afterwards, the mercury in flue gas can be effectively removed, the mercury absorbent after trapping can be again by the circulatory system
Secondary use, this method can reduce the consumption of adsorbent, reduce flue gas demercuration cost.
But there is also certain defects for this demercuration method, and during demercuration, adsorbent residence time in flue gas
The only short several seconds is then captured by dust-extraction unit, and absorption reaches far away saturation, and the active component of adsorbent outer layer is ginseng
With the main body reacted, this can cause adsorbent internal layer active component utilization rate extremely low.In addition, power plant load, as-fired coal matter, burning
Operating mode is changeable, causes mercury in flue gas fluctuation of concentration larger, and uses its activearm of the adsorbent of chemical solution dipping method preparation
The content divided is typically certain, can not adapt to the frequent fluctuation of mercury concentration, cause a large amount of wastes of adsorbent, demercuration cost big
It is big to increase.
Invention content
For the disadvantages described above or Improvement requirement of the prior art, the present invention provides one kind to activate and spray online simultaneously
The method of demercuration adsorbent, method through the invention may make active component presoma and adsorbent energy highly effective reaction generate to live
Property component, largely improves mercury absorbent and active component utilization ratio, reduces the dosage of adsorbent, greatly save
Demercuration cost.
To achieve the above object, the present invention provides a kind of method that can while activate and spray demercuration adsorbent online, leads to
The device that can while activate and spray demercuration adsorbent online is crossed to mercury absorbent progress activation and injection online, wherein this can
The device of online activation and injection demercuration adsorbent includes simultaneously：
For spraying the injection equipment of mercury absorbent, being arranged in the injection equipment side and the online activation that communicates therewith
Mechanism and mercury concentration on-line computing model for monitoring mercury in flue gas concentration；
Wherein, the injection equipment includes one end with sleeve of the spout other end with adsorbent feeding mouth, the sleeve
Side wall is provided with through-hole；The injection equipment further includes damper, is arranged before adsorbent feeding mouth；
The online activation mechanism includes active component presoma injector, and one end is inserted into the through-hole, the other end
It is connected to active component precursor source；The online activation mechanism further includes control valve, is arranged in active component presoma
On injector；
This approach includes the following steps：
Monitor the mercury concentration in flue gas in real time using mercury concentration on-line computing model；
According to the obtained mercury concentration of monitoring, described in dynamic regulation when damper, control mercury absorbent injection rate and injection
It is long；Activate the control valve in mechanism described in dynamic regulation online simultaneously, control injection rate, the concentration of active component presoma with
And injection length；The mercury absorbent and active component presoma is set to inject in the sleeve of the injection equipment；
In the sleeve, the active component presoma makes active component exist by adsorbent surface layer micropore oriented attachment
Adsorbent upper epidermis is enriched with, and forms active material, to be activated online to adsorbent；
Adsorbent after activation by the injection equipment by injection injection flue,
So that the mercury compound in flue gas is adsorbed on adsorbent surface, and then is caught by fume dust remover with adsorbent
It obtains, and then realizes flue gas demercuration.
As present invention further optimization, the injection equipment further includes adsorbent storage feed bin, is arranged in sleeve
One end is provided with blender in adsorbent storage feed bin, conveying pipeline is provided between adsorbent storage feed bin and sleeve, blender is to mercury
Mercury absorbent in adsorbent storage feed bin is stirred, and damper described in dynamic regulation, mercury absorbent is injected by conveying pipeline
In sleeve.
As present invention further optimization, the active component presoma is injected by activating mechanism online in sleeve,
Wherein, the online activation mechanism further includes active component presoma reservoir, and heater is additionally provided on conveyance conduit, heating
The active component presoma is heated to suitable temperature by device, activates the control valve in mechanism described in dynamic regulation online,
Active component presoma is injected by active component presoma injector in sleeve.
As present invention further optimization, the mercury absorbent is ejected by injection equipment in flue, wherein described
Injection equipment further includes screw rod, is set in sleeve, and the screw rod is made of shaft and fin, and fin is fixed on shaft
And be distributed in the space between screw rod and ferrule barrel inner wall, mercury absorbent is at the uniform velocity pushed in flue by shaft, and fin can
The reunion of adsorbent and the deposition in sleeve wall are prevented, to improve the dispersion degree of adsorbent.
Through the above scheme, the device of the invention has online activation mechanism and sorbent injection mechanism, activearm simultaneously
Divide presoma injector that active component presoma is injected into sleeve, meanwhile, mercury absorbent is injected by adsorbent feeding mouth
Sleeve so that active component presoma and adsorbent energy highly effective reaction generate active component, and are sprayed in turn by the spout,
Mercury absorbent and active component utilization ratio are largely improved, the dosage of adsorbent is reduced.
As present invention further optimization, the emitted dose of the mercury absorbent is sprayed according to the mercury concentration and adsorbent of monitoring
The amount of penetrating m1Mathematical model between demercuration efficiency η is controlled, the mercury concentration and sorbent injection amount m1With demercuration efficiency η
Between mathematical modulo be according to power plant's operating parameter, line size, flue gas flow, by test and theoretical calculation establish, i.e.,
Wherein, K is absorption constant (m related with temperature, sorbent characteristics3/ kg), corresponding different temperatures, different absorption
Its is of different sizes for agent, such as activated carbon is at 120 DEG C, K=294m3/kg；KgIt is always passed for the substance based on gas phase concentration difference
Matter coefficient,Wherein kgFor External mass transfer coefficient, m/s, corresponding different temperatures kgNumerical values recited is different, such as gas
State mercury k at 120 DEG Cg=4440m/s；ksFor internal mass transfer coefficient (m/s), corresponding different temperatures, different adsorbent ksNumerical value is big
Small difference, such as activated carbon is at 120 DEG C, ks=0.016m/s；ρpFor the density (kg/m of adsorbent3)；dpFor the grain of adsorbent
Diameter (m).
As present invention further optimization, the demercuration efficiency η is calculate by the following formula：
η=f (m1)=(C1-C2)/C1
Wherein, C1For mercury in flue gas concentration, C2For mercury emissions standard.
As present invention further optimization, (proportional, integral-is micro- by PID controller for the emitted dose of the mercury absorbent
Sub-controller) control.
As present invention further optimization, the active component presoma injection rate is injected by active component presoma
Measure m2It is calculate by the following formula：
m2=(N1/NA)×VA×ρ
Wherein, N1For active component precursor molecule number N1=(2nm × SBET)/V1,SBETFor the specific surface of adsorbent
Product, V1For the molecular volume of active component presoma；NAFor Avogadro constant number, N under the status of criterionA=6.02 × 1023/
mol；VAFor molar volume of gas, V under the status of criterionA=22.4L/mol, ρ are active component forerunner's volume density.
In said program, pass through mercury absorbent emitted dose m1Mathematical model between demercuration efficiency η and PID controller
Damper described in (proportional-integral derivative controller) dynamic regulation, control mercury absorbent injection rate and injection duration；Simultaneously
Pass through active component presoma injection rate m2With sorbent injection amount m1Between mathematical model, activate online described in dynamic regulation
Control valve in mechanism controls injection rate, concentration and the injection length of active component presoma, active component is made to adsorb
Agent upper epidermis is enriched with, active component presoma should adsorbent surface uniformly, be completely covered, avoid active component excessive again
Load, interior diffusion of the mercury in adsorbent is adversely affected so that the demercuration performance of adsorbent be optimal it is same
When avoid active component from wasting.
As present invention further optimization, the active component presoma is H2S、SO2, at least one of HCl and Br.
As present invention further optimization, the active material is at least one of S, Cl and Br.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, due to the provision of one kind
The device and method that can activate and spray demercuration adsorbent online simultaneously, can obtain following advantageous effect：
(1) method of the invention by having the device of online activation mechanism and sorbent injection mechanism to be sprayed simultaneously
It penetrates, wherein active component presoma is injected into sleeve by active component presoma injector, meanwhile, mercury absorbent passes through absorption
Agent feeding mouth injects sleeve so that active component presoma and adsorbent energy highly effective reaction generate active component, and pass through in turn
The spout injection, largely improves mercury absorbent and active component utilization ratio, reduces the dosage of adsorbent.
(2) method of the invention passes through mercury absorbent emitted dose m1Mathematical model between demercuration efficiency η and PID control
Damper described in device dynamic regulation, control mercury absorbent injection rate and injection duration；It is noted simultaneously by active component presoma
Enter amount m2With sorbent injection amount m1Between mathematical model, the control valve in mechanism, control are activated described in dynamic regulation online
Injection rate, concentration and the injection length of active component presoma, making active component, surface layer is enriched on the sorbent, active component
Presoma should adsorbent surface uniformly, be completely covered, active component excessive load is avoided again, to mercury in adsorbent
Interior diffusion adversely affects, so that the demercuration performance of adsorbent avoids active component from wasting while being optimal.
(3) the mercury concentration in flue gas is monitored by mercury concentration monitor, dynamic control damper and control valve are opened
Degree, and heated by heater so that active component presoma and adsorbent energy highly effective reaction generate active component, realize that mercury is inhaled
Attached dose of real-time online activation, to adapt to the frequent fluctuation of mercury concentration.
Description of the drawings
Fig. 1 can activate and spray the device involved in the method for demercuration adsorbent online simultaneously for the embodiment of the present invention
Structural schematic diagram.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
It does not constitute a conflict with each other and can be combined with each other.
Fig. 1 is injection involved in the method that can be activated online simultaneously and spray demercuration adsorbent of the embodiment of the present invention
The structural schematic diagram of device.As shown in Figure 1, the device includes injection equipment and is arranged in injection equipment side and communicates therewith
Online activation mechanism.
Such as Fig. 1, injection equipment includes screw rod, sleeve 3, damper 4, adsorbent storage feed bin 5, blender 6 and conveying
Pipe 7.Wherein, screw rod is set in sleeve 3, is preferably coaxially arranged, and the screw rod is made of shaft 1 and fin 2, fin 2
It is fixed on shaft 1 and is distributed in the space between shaft 1 and cylinder inboard wall.Adsorbent storage feed bin 5 is arranged the one of sleeve 3
End is upper end shown in Fig. 1, and the other end of sleeve 3 is spout, and adsorbent storage feed bin 5 is for storing adsorbent.
At least one through-hole is provided on the side wall of sleeve 3, preferably two or more, each through-hole can be distributed in sleeve 3
Side, or be symmetrically distributed in both sides, the side of different directions can not also be symmetrically distributed in.
Blender 6 is provided in adsorbent storage feed bin 5, for being stirred to the adsorbent in adsorbent storage feed bin 5,
To inject in sleeve 3.Conveying pipeline 7 is provided between adsorbent storage feed bin 5 and sleeve 3 so that adsorbent storage feed bin 5 and sleeve 3
It is connected to by the conveying pipeline 7, for injecting the adsorbent in adsorbent storage feed bin 5 in sleeve 3.Tune is provided on conveying pipeline 7
Save air door 4, the aperture for adjusting conveying pipeline 7, to control the amount and entry time of adsorbent entrance.
Adsorbent is entered by conveying pipeline in sleeve 3 under the drive of blender 6, and adjusts adsorbent by damper 4
Emitted dose.After adsorbent enters in sleeve 3, at the uniform velocity adsorbent is pushed in flue by shaft 1, wherein fin 2 can prevent from inhaling
Attached dose occurs to reunite and deposit on 3 wall of sleeve, improves adsorbent dispersion degree.
Such as Fig. 1, the online mechanism that activates includes active component presoma injector 8, control valve 9, active component presoma
Reservoir 10.Wherein, active component presoma injector 8 is preferably cylinder structure, is opened up on the barrel of one end insertion sleeve 3
Trepanning in, the other end is connect by conveyance conduit with active component presoma reservoir 10, for by active component presoma
In active component presoma injection sleeve 3 in reservoir 10.In addition, the setting of control valve 9 is injected in active component presoma
On device 8, the break-make of active component presoma injector 8 and sleeve 3 can be controlled, to control the activity in injection sleeve 3
Injection rate, concentration and the injection length of component presoma.
Preferably, it is additionally provided with heater 12 on conveyance conduit, is used in the active component presoma reservoir 10
It is heated to suitable temperature before injection adsorbent spray gun, active component presoma and adsorbent highly effective reaction is enable to generate
Active component.
Online activation mechanism quantity is preferably identical as the side-wall hole quantity of sleeve 3, i.e., activation device is at least one online
It is a, it is preferably two or more, correspondingly, the distribution mode one of through-hole in the distribution mode and sleeve of each online activation mechanism
It causes, specifically, the side of sleeve 3 can be distributed in, or be symmetrically distributed in both sides, different directions can not also be symmetrically distributed in
Side.
Further include mercury concentration on-line computing model 11, is used to monitor the mercury concentration data in flue, preferably mercury concentration in real time
On-line computing model 11 is multiple, such as two, is separately positioned at left and right sides of injection equipment and online activation mechanism.Control valve
9 aperture can be adjusted according to the feedback data of mercury concentration on-line computing model 11.
One embodiment of the invention can while activate and spray demercuration adsorbent method online, pass through above-mentioned injection apparatus
It carries out, this method is as follows：
(1) mercury concentration on-line computing model 11 is utilized to monitor the mercury concentration in flue gas in real time；
(2) according to the obtained mercury concentration of monitoring, damper 4 described in dynamic regulation controls mercury absorbent injection rate and note
Enter duration；
1) according to the mercury concentration of monitoring and sorbent injection amount m1Mathematical model between demercuration efficiency η；
2) according to power plant's operating parameter, line size, flue gas flow, mercury concentration and suction are established by experiment and theoretical calculation
Attached dose of emitted dose m1Mathematical modulo between demercuration efficiency η, i.e.,
Wherein, K is absorption constant (m related with temperature, sorbent characteristics3/ kg), corresponding different temperatures, different absorption
Its is of different sizes for agent, such as activated carbon is at 120 DEG C, K=294m3/kg；KgIt is always passed for the substance based on gas phase concentration difference
Matter coefficient,Wherein kgFor External mass transfer coefficient, m/s, corresponding different temperatures kgNumerical values recited is different, such as gas
State mercury k at 120 DEG Cg=4440m/s；ksFor internal mass transfer coefficient (m/s), corresponding different temperatures, different adsorbent ksNumerical value is big
Small difference, such as activated carbon is at 120 DEG C, ks=0.016m/s；ρpFor the density (kg/m of adsorbent3)；dpFor the grain of adsorbent
Diameter (m)；
3) it is calculate by the following formula demercuration efficiency η：
η=f (m1)=(C1-C2)/C1
Wherein, C1For mercury in flue gas concentration, C2For mercury emissions standard；
4) emitted dose of mercury absorbent is controlled by PID controller (proportional-integral derivative controller)；
5) blender 6 is stirred the mercury absorbent in mercury absorbent storage bin 5,
6) damper 4 described in dynamic regulation；
7) mercury absorbent is injected by conveying pipeline 7 in sleeve 3；
(3) while described in dynamic regulation the control valve 9 in mechanism is activated online, controls the injection of active component presoma
Amount, concentration and injection length；
1) it is calculate by the following formula active component presoma injection rate m2：
m2=(N1/NA)×VA×ρ
Wherein, N1For active component precursor molecule number N1=(2nm × SBET)/V1,SBETFor the specific surface of adsorbent
Product, V1For the molecular volume of active component presoma；NAFor Avogadro constant number, N under the status of criterionA=6.02 × 1023/
mol；VAFor molar volume of gas, V under the status of criterionA=22.4L/mol, ρ are active component forerunner's volume density；
2) the active component presoma being stored in active component forerunner body memory 10 is heated to properly by heater 12
Temperature；
3) control valve 9 in mechanism is activated described in dynamic regulation online；
4) active component presoma is injected by active component presoma injector in sleeve 3；
(4) active component presoma is by adsorbent surface layer micropore oriented attachment, and making active component, surface layer is rich on the sorbent
Collection forms active material.
Wherein, the active component presoma is H2S、SO2, at least one of HCl and Br；The active material is S, Cl
At least one of with Br；
(5) adsorbent after activating is sprayed by fin 2 in injection flue under the effect of gravity；
(6) mercury compound in flue gas is adsorbed on adsorbent surface, and then is caught by fume dust remover with adsorbent
It obtains, and then realizes flue gas demercuration.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all within the spirits and principles of the present invention made by all any modification, equivalent and improvement etc., should all include
Within protection scope of the present invention.
Claims (6)
1. a kind of method that can activate and spray demercuration adsorbent online simultaneously, by that can activate and spray demercuration online simultaneously
The device of adsorbent to mercury absorbent activate and spray online, wherein this can activate and spray demercuration absorption online simultaneously
The device of agent includes：
For spraying the injection equipment of mercury absorbent, being arranged in the injection equipment side and the online activation mechanism that communicates therewith
And the mercury concentration on-line computing model (11) for monitoring mercury in flue gas concentration；
Wherein, the injection equipment includes one end with sleeve (3) of the spout other end with adsorbent feeding mouth, the sleeve
(3) side wall is provided with through-hole；The injection equipment further includes damper (4), is arranged before adsorbent feeding mouth；
The online activation mechanism includes active component presoma injector (8), and one end is inserted into the through-hole, the other end with
Active component precursor source is connected to；The online activation mechanism further includes control valve (9), is arranged in active component presoma
On injector (8)；
This approach includes the following steps：
Utilize the mercury concentration in mercury concentration on-line computing model (11) in real time monitoring flue gas；
According to the obtained mercury concentration of monitoring, described in dynamic regulation when damper (4), control mercury absorbent injection rate and injection
It is long；It activates the control valve (9) in mechanism described in dynamic regulation online simultaneously, controls the injection rate, dense of active component presoma
Degree and injection length；The mercury absorbent and active component presoma is set to inject in the sleeve of the injection equipment；
The active component presoma, by adsorbent surface layer micropore oriented attachment, makes active component in adsorbent in the sleeve
Upper epidermis is enriched with, and forms active material, to be activated online to adsorbent；
Adsorbent after activation is by the injection equipment by injection injection flue；
Mercury compound in flue gas is adsorbed on adsorbent surface, and is captured by fume dust remover with adsorbent, to real
Existing flue gas demercuration；
The emitted dose of the mercury absorbent is according to the mercury concentration and sorbent injection amount m of monitoring1Mathematics between demercuration efficiency η
Model is controlled, the mercury concentration and sorbent injection amount m1Mathematical modulo between demercuration efficiency η is run according to power plant
Parameter, line size, flue gas flow are established, i.e., by experiment and theoretical calculation
Wherein, K is absorption constant related with temperature, sorbent characteristics；KgFor the total mass transfer of substance based on gas phase concentration difference
Coefficient,Wherein kgFor External mass transfer coefficient, ksFor internal mass transfer coefficient；ρpFor the density of adsorbent, dpFor
The grain size of adsorbent；
The demercuration efficiency η is calculate by the following formula：
η=f (m1)=(C1-C2)/C1
Wherein, C1For mercury in flue gas concentration, C2For mercury emissions standard；
The emitted dose of the mercury absorbent is controlled by PID controller；
The active component presoma injection rate-m2It is calculate by the following formula：
m2=(N1/NA)×VA×ρ
Wherein, N1For active component precursor molecule number；NAFor Avogadro constant number；VAFor molar volume of gas；ρ is to live
Property component forerunner's volume density.
2. a kind of method that can activate and spray demercuration adsorbent online simultaneously according to claim 1, wherein the spray
It further includes adsorbent storage feed bin (5) to penetrate mechanism, is arranged in one end of sleeve (3), adsorbent storage feed bin is provided with stirring in (5)
Device (6), is provided with conveying pipeline (7) between adsorbent storage feed bin (5) and sleeve (3), blender (6) is used for mercury absorbent storing
Mercury absorbent in storehouse (5) is stirred, and the damper (4) is arranged on the conveying pipeline (7), and mercury absorbent passes through institute
It states in conveying pipeline (7) injection sleeve (3).
3. a kind of method that can activate and spray demercuration adsorbent online simultaneously according to claim 1, wherein the work
Property component presoma injected in sleeve (3) by activating mechanism online, wherein the online activation mechanism further includes active component
Presoma reservoir (10) and heater (12), the heater (12) is for the active component presoma to be heated to properly
Temperature, to be injected in sleeve (3) by active component presoma injector.
4. a kind of method that can activate and spray demercuration adsorbent online simultaneously according to claim 1 or 2, wherein institute
It states mercury absorbent to be ejected into flue by injection equipment, wherein the injection equipment further includes screw rod, is set in sleeve
(3) in, the screw rod is made of shaft (1) and fin (2), and fin (2) is fixed on shaft (1) and is distributed in screw rod (1)
In space between sleeve (3) cylinder inboard wall, mercury absorbent is at the uniform velocity pushed in flue after line activation by shaft (1), wing
The reunion and the deposition on sleeve (3) wall that piece (2) can prevent adsorbent, to improve the dispersion degree of adsorbent.
5. a kind of method that can activate and spray demercuration adsorbent online simultaneously according to any one of claim 1-3,
Wherein, the active component presoma is H2S、SO2, at least one of HCl and Br.
6. a kind of method that can activate and spray demercuration adsorbent online simultaneously according to any one of claim 1-3,
Wherein, the active material is at least one of S, Cl and Br.
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| CN1933893A (en) * | 2004-03-22 | 2007-03-21 | 巴布考克及威尔考克斯公司 | Dynamic halogenation of sorbents for the removal of mercury from flue gases |
| CN101048218A (en) * | 2004-08-30 | 2007-10-03 | 能源与环境研究中心财团 | Sorbents for the oxidation and removal of mercury |
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