CN106582252A - Novel flue gas desulfurization and demercuration agent and preparation method thereof - Google Patents
Novel flue gas desulfurization and demercuration agent and preparation method thereof Download PDFInfo
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- CN106582252A CN106582252A CN201611193668.8A CN201611193668A CN106582252A CN 106582252 A CN106582252 A CN 106582252A CN 201611193668 A CN201611193668 A CN 201611193668A CN 106582252 A CN106582252 A CN 106582252A
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- Prior art keywords
- pyrolusite
- flue gas
- removing agent
- novel flue
- mercury removing
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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
- B01D53/81—Solid phase processes
-
- 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
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/64—Heavy metals or compounds thereof, e.g. mercury
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention relates to the field of rice wine making technology, in particular to a novel flue gas desulfurization and demercuration agent and a preparation method thereof. Pyrolusite, Li2MnTiO4 and manganese titanate are adopted as active components to be loaded on a carrier, and the proportion of the active components in the desulfurization and demercuration agent is controlled, so that the pore volume of the desulfurization and demercuration agent is high, the sulfur volume and the mercury volume reach 16.3wt% or above, and desulfurization and demercuration efficiency of the desulfurization and demercuration agent reaches 98% or above.
Description
Technical field
The present invention relates to rice wine manufacture technology field, especially a kind of Novel flue gas sulfur and mercury removing agent and preparation method thereof.
Background technology
Coal is Fossil fuel the abundantest, is also the most basic, the most coarse energy, its in combustion,
Generation has in a large number the pollutant of severe contamination, such as dust, sulfur dioxide, nitrogen oxides, hydrargyrum composition to air.For dioxy
Change sulfur, the exclusion of nitrogen oxides, it will result in acid rain and return in earth's surface river, lake, high degree affects dynamic plant
Thing needs water quality, causes the large-area industrial equipment burn into animals and plants to sustain damage, and causes crop failure, Animal diseases frequency
Numerous generation；For the discharge of hydrargyrum composition, it is easily accessible after organism, and methyl mercury is formed in vivo, and methyl mercury will press down
The metabolism of organism processed, seriously threatens the health of organism, and falls within heavy metal pollution field.
In consideration of it, in prior art, advocate carries out desulfuration demercuration process energetically to coal-fired flue-gas, to reduce coal-fired flue-gas row
Put the pollution brought to environment so that occur in that substantial amounts of with regard to desulfurization, the appearance of demercuration technology, but most of desulfuration demercuration skills
Art is all individually to be processed for desulfurization, demercuration, such as desulfurization is carried out using lime water sulfur dioxide absorption, using adsorbent
Carry out adsorbing and removing hydrargyrum etc..Even so, the desulfuration demercuration efficiency in most prior art is still undesirable, maintain all the time
70% or so, cause during fume emission, still the discharge containing substantial amounts of sulfur dioxide, hydrargyrum composition.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of Novel flue gas sulfur and mercury removing agent
And preparation method thereof.
It is achieved particular by technical scheme below：
A kind of Novel flue gas sulfur and mercury removing agent, is made up of active component and carrier, and active component mass percent is 1-
30%；Active component is Li2MnTiO4, manganese titanate and pyrolusite mixing, mixing ratio is any mass ratio being not zero.
Described active component, the quality percentage accounting of its material composition is Li2MnTiO41-6%, manganese titanate 15-37%,
Balance of pyrolusite.
Described active component, the quality percentage accounting of its material composition is Li2MnTiO43%th, manganese titanate 25%, surplus
For pyrolusite.
Described pyrolusite, crosses through microwave radiation processing.
Described microwave radiation, its microwave power is 100-300W, and radiated time is 10-30min.
Described pyrolusite be after being heated to 300-600 DEG C, and to pyrolusite surface watering so that its occur powder
Change, obtain pyrolusite powder.
Described carrier is molecular sieve, silicon dioxide or γ-Al2O3。
Described carrier, specific surface area is 150-290m2/ g, pore volume is 0.9～1.7cm3/g。
Described carrier, specific surface area is 220m2/ g, pore volume is 1.3cm3/g。
Above-mentioned Novel flue gas sulfur and mercury removing agent preparation method, comprises the following steps：
(1) pyrolusite is placed in into temperature to heat at 300-600 DEG C, and to its surface watering so that there is efflorescence, obtain
Pyrolusite powder；
(2) by pyrolusite powder and Li2MnTiO4, manganese titanate mix homogeneously, add water and be prepared into liquid-solid ratio for 3-5:1 slurry；
(3) carrier is soaked in the slurry 2-3h, temperature is placed in process 20-30min at 70-130 DEG C, by its into
Type, you can.
Compared with prior art, technique effect of the invention is embodied in：
The sulfur and mercury removing agent of the invention is using pyrolusite and Li2MnTiO4, manganese titanate be supported on load as active component
On body, and accounting is controlled in sulfur and mercury removing agent to active component so that the pore volume of the sulfur and mercury removing agent is higher, Sulfur capacity,
Hydrargyrum appearance has reached more than 16.3wt%, and the desulfuration demercuration efficiency of sulfur and mercury removing agent has reached more than 98%.
The sulfur and mercury removing agent of the invention can be lower in temperature, and to flue gas desulfuration demercuration process is carried out, it is to avoid
Flue gas is processed under high temperature and is easily caused Li2MnTiO4Etc. decomposing, it is to avoid the inactivation of active component so that in desulfurization, demercuration
Efficiency be improved, the consumption of sulfur and mercury removing agent is reduced.
Sulfur and mercury removing agent is prepared directly as raw material using pyrolusite, it can effectively cause the cost of sulfur and mercury removing agent
Reduce, reduce the cost to flue gas desulfurizing and hydrargyrum-removing, improve desulfuration demercuration efficiency.
For pyrolusite adopts microwave radiation processing, the main component manganese dioxide activation in pyrolusite is enabled to, carried
Oxidation and adsorption of the high pyrolusite to sulfur dioxide and Elemental Mercury, improves desulfuration demercuration performance.
Time and the restriction of microwave irradiation power for microwave radiation processing, the energy consumption for processing can not only be reduced,
But also excess processes manganese dioxide can be avoided, cause the active poor defect of manganese dioxide so that pyrolusite is used for cigarette
Desulfurization, the activity of demercuration are ensured.
It is 150-290m that carrier of the present invention selects specific surface area2/ g, pore volume is 0.9～1.7cm3/g；Improve
Li2MnTiO4, manganese titanate and the carrier-bound uniformity, improve Li2MnTiO4, manganese titanate and sulfide, the contact area of hydrargyrum,
Improve to sulfide and the adsorbance of hydrargyrum, improve removal efficiency；Especially specific surface area is 220m2/g, and pore volume is 1.3cm3/g,
It is enabled to when the sulfide and hydrargyrum in flue gas carries out adsorbing and removing, and its removal efficiency reaches more than 98.5%, effectively
Reduce sulfur, the content of hydrargyrum composition in discharge flue gas.
Specific embodiment
Technical scheme is further limited with reference to specific embodiment, but claimed
Scope is not only limited to description.
In certain embodiments, flue gas desulfurizing and hydrargyrum-removing agent, is made up of active component and carrier, active component mass percent
For 1-30%；Active component is Li2MnTiO4, manganese titanate and pyrolusite mixing, mixing ratio is any quality being not zero
Than.
In certain embodiments, described active component, the quality percentage accounting of its material composition is Li2MnTiO41-
6%th, manganese titanate 15-37%, balance of pyrolusite.
In certain embodiments, described active component, the quality percentage accounting of its material composition is Li2MnTiO43%th,
Manganese titanate 25%, balance of pyrolusite.
In certain embodiments, described pyrolusite, crosses through microwave radiation processing.
In certain embodiments, described microwave radiation, its microwave power is 100-300W, and radiated time is 10-
30min。
In certain embodiments, described pyrolusite is after being heated to 300-600 DEG C, and to spill to pyrolusite surface
Water so that it occurs efflorescence, obtains pyrolusite powder.
In certain embodiments, described carrier is molecular sieve, silicon dioxide or γ-Al2O3。
In certain embodiments, described carrier, specific surface area is 150-290m2/ g, pore volume is 0.9～1.7cm3/g。
In certain embodiments, described carrier, specific surface area is 220m2/ g, pore volume is 1.3cm3/g。
In certain embodiments, flue gas desulfurizing and hydrargyrum-removing agent preparation method, comprises the following steps：
(1) pyrolusite is placed in into temperature to heat at 300-600 DEG C, and to its surface watering so that there is efflorescence, obtain
Pyrolusite powder；
(2) by pyrolusite powder and Li2MnTiO4, manganese titanate mix homogeneously, add water and be prepared into liquid-solid ratio for 3-5:1 slurry；
(3) carrier is soaked in the slurry 2-3h, temperature is placed in process 20-30min at 70-130 DEG C, is dried
Afterwards, you can.
Embodiment 1
By pyrolusite grind into powder, by itself and Li2MnTiO4, manganese titanate mix homogeneously, obtain active component, mix matter
Amount percentage ratio be pyrolusite powder 80%, Li2MnTiO45%th, manganese titanate 15%, takes active component 10g, adds water and is prepared into slip,
And by the γ-Al of a diameter of 0.02mm2O380g adds immersion 2h, is placed in temperature to process 30min at 70 DEG C, is dried and obtains.
Embodiment 2
Pyrolusite is heated to into 600 DEG C, is added water so that pyrolusite efflorescence, obtains pyrolusite powder；By pyrolusite powder with
Li2MnTiO4, manganese titanate mix homogeneously, obtain active component, mixing quality percentage ratio is pyrolusite powder 60%,
Li2MnTiO420%th, manganese titanate 20%, takes active component 5g, adds water and is prepared into slip, and by the titanium dioxide of a diameter of 0.06mm
Silicon grain 95g adds immersion 3h, is placed in temperature to process 20min at 130 DEG C, is dried and obtains.
Embodiment 3
Pyrolusite is heated to into 300 DEG C, is added water so that pyrolusite efflorescence, obtains pyrolusite powder；By pyrolusite powder with
Li2MnTiO4, manganese titanate mix homogeneously, obtain active component, mixing quality percentage ratio is pyrolusite powder 80%,
Li2MnTiO413%th, manganese titanate 7%, takes active component 1g, adds water and is prepared into slip, and is 150m by specific surface area2/ g, pore volume
For 0.9cm3The SBA-15 molecular sieves 99g of/g adds immersion 2.5h, is placed in temperature to process 25min at 80 DEG C, is dried and obtains.
Embodiment 4
Pyrolusite is heated to into 500 DEG C, is added water so that pyrolusite efflorescence, obtains pyrolusite powder；By pyrolusite powder with
Li2MnTiO4, manganese titanate mix homogeneously, obtain active component, mixing quality percentage ratio is pyrolusite powder 20%,
Li2MnTiO457%th, manganese titanate 23%, takes active component 15g, adds water and is prepared into slip, and is 290m by specific surface area2/ g, hole
Hold for 1.7cm3The MCM-41 molecular sieves 85g of/g adds immersion 2.5h, is placed in temperature to process 25min at 80 DEG C, is dried and obtains.
Embodiment 5
Pyrolusite is adopted into microwave radiation processing 10min, microwave irradiation power is 300W, and is ground into powder, is obtained
To pyrolusite powder；By pyrolusite powder and Li2MnTiO4, manganese titanate mix homogeneously, obtain active component, mixing quality percentage ratio
For pyrolusite powder 50%, Li2MnTiO426%th, manganese titanate 24%, takes active component 30g, adds water and is prepared into slip, and will compare
Surface area is 220m2/ g, pore volume is 1.3cm3The ZSM-5 molecular sieve 70g of/g adds immersion 2.3h, is placed in temperature to locate at 110 DEG C
Reason 30min, is dried and obtains.
Embodiment 6
It is after pyrolusite is warming up to into 400 DEG C plus water-atomised, and the pyrolusite powder after efflorescence is adopted into microwave radiation processing
30min, microwave irradiation power is 100W, obtains pyrolusite powder；By pyrolusite powder and Li2MnTiO4, manganese titanate mix homogeneously,
Obtain active component, mixing quality percentage ratio is pyrolusite powder 70%, Li2MnTiO416%th, manganese titanate 14%, take activity into
Divide 25g, add water and be prepared into slip, and the silica dioxide granule 75g of a diameter of 0.01mm is added into immersion 2.7h, being placed in temperature is
24min is processed at 100 DEG C, is dried and is obtained.
It is as follows that the flue gas desulfurizing and hydrargyrum-removing agent obtained to the invention carries out activity rating：
The sulfur and mercury removing agent that above-described embodiment 1-6 is obtained is filled in the 5mL clean-up beds that internal diameter is 12mm, it is normal in room temperature
Pressure, air speed are 2000h-1Under conditions of, with containing variable concentrations sulfur dioxide, mercury compound impurity nitrogen by the purification
Bed, the effect assessment to desulfuration demercuration, as a result for：
It can be seen that, the sulfur and mercury removing agent of the invention can make the sulfur dioxide in flue gas, the substantial amounts of removing of hydrargyrum composition
Obtain desulfuration demercuration rate and reach more than 98%；With higher desulfuration demercuration activity, reduce the sulfur in flue gas, hydrargyrum composition and contain
Amount.
In addition, the raw material that the invention is adopted is easy to get, and is generally can to obtain in prior art, and it is processed into
This is relatively low；Various sulfur-bearings, the process of mercurous waste gas are can be widely applied for, sulfur, the content of hydrargyrum composition in garbage, drop is reduced
Low environment pollution rate.
The sulfur and mercury removing agent of the invention is placed on temperature for 20-30 after desulfuration demercuration process is carried out to flue gas
DEG C warm water in soak, it is possible to achieve the recycling of fractions in sulfur and mercury removing agent, but loss of activity is more serious.
Claims (10)
1. a kind of Novel flue gas sulfur and mercury removing agent, is made up of active component and carrier, it is characterised in that active component quality percentage
Than for 1-30%；Active component is Li2MnTiO4, manganese titanate and pyrolusite mixing, mixing ratio is any quality being not zero
Than.
2. Novel flue gas sulfur and mercury removing agent as claimed in claim 1, it is characterised in that described active component, its raw material into
The quality percentage accounting divided is Li2MnTiO41-6%, manganese titanate 15-37%, balance of pyrolusite.
3. Novel flue gas sulfur and mercury removing agent as claimed in claim 1 or 2, it is characterised in that described active component, its raw material
The quality percentage accounting of composition is Li2MnTiO43%th, manganese titanate 25%, balance of pyrolusite.
4. Novel flue gas sulfur and mercury removing agent as claimed in claim 1 or 2, it is characterised in that described pyrolusite, is through micro-
What wave radiation was processed.
5. Novel flue gas sulfur and mercury removing agent as claimed in claim 4, it is characterised in that described microwave radiation, its microwave work(
Rate is 100-300W, and radiated time is 10-30min.
6. Novel flue gas sulfur and mercury removing agent as claimed in claim 1 or 2, it is characterised in that described pyrolusite be through plus
Heat is sprinkled water to after 300-600 DEG C to pyrolusite surface so that it occurs efflorescence, obtains pyrolusite powder.
7. Novel flue gas sulfur and mercury removing agent as claimed in claim 1, it is characterised in that described carrier is molecular sieve, dioxy
SiClx or γ-Al2O3。
8. the Novel flue gas sulfur and mercury removing agent as described in claim 1 or 7, it is characterised in that described carrier, specific surface area is
150-290m2/ g, pore volume is 0.9～1.7cm3/g。
9. Novel flue gas sulfur and mercury removing agent as claimed in claim 8, it is characterised in that described carrier, specific surface area is
220m2/ g, pore volume is 1.3cm3/g。
10. the Novel flue gas sulfur and mercury removing agent preparation method as described in any one of claim 1-9, it is characterised in that include with
Lower step：
(1) pyrolusite is placed in into temperature to heat at 300-600 DEG C, and to its surface watering so that there is efflorescence, obtain soft manganese
Breeze；
(2) by pyrolusite powder and Li2MnTiO4, manganese titanate mix homogeneously, add water and be prepared into liquid-solid ratio for 3-5:1 slurry；
(3) carrier is soaked in the slurry 2-3h, temperature is placed in process 20-30min at 70-130 DEG C, by its molding, i.e.,
Can.
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| CN201611193668.8A CN106582252B (en) | 2016-12-21 | 2016-12-21 | Flue gas desulfurization and mercury removal agent and preparation method thereof |
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|---|---|---|---|
| CN201611193668.8A CN106582252B (en) | 2016-12-21 | 2016-12-21 | Flue gas desulfurization and mercury removal agent and preparation method thereof |
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| CN1754941A (en) * | 2004-09-28 | 2006-04-05 | 中国石油化工股份有限公司 | Composition with desulfation function |
| CN101275096A (en) * | 2008-05-21 | 2008-10-01 | 宋云星 | Solid desulfuration incendiary agent for coal-burning boiler |
| CN102107113A (en) * | 2005-03-29 | 2011-06-29 | 洋马株式会社 | Exhaust gas purifying apparatus |
| CN104028218A (en) * | 2014-06-06 | 2014-09-10 | 四川大学 | Low-cost high-activity catalytic type desulphurization active coke and preparation method thereof |
| CN105289645A (en) * | 2015-11-14 | 2016-02-03 | 华玉叶 | Catalyst composition used for fire coal flue gas purifying |
| CN105688647A (en) * | 2016-03-16 | 2016-06-22 | 贵州大学 | Method for dry desulfurization and demercuration of sintering flue gas containing mercury by means of low-grade pyrolusite |
-
2016
- 2016-12-21 CN CN201611193668.8A patent/CN106582252B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279121A (en) * | 1999-06-28 | 2001-01-10 | 陈银山 | Efficient clarifier for dust fume |
| CN1754941A (en) * | 2004-09-28 | 2006-04-05 | 中国石油化工股份有限公司 | Composition with desulfation function |
| CN102107113A (en) * | 2005-03-29 | 2011-06-29 | 洋马株式会社 | Exhaust gas purifying apparatus |
| CN101275096A (en) * | 2008-05-21 | 2008-10-01 | 宋云星 | Solid desulfuration incendiary agent for coal-burning boiler |
| CN104028218A (en) * | 2014-06-06 | 2014-09-10 | 四川大学 | Low-cost high-activity catalytic type desulphurization active coke and preparation method thereof |
| CN105289645A (en) * | 2015-11-14 | 2016-02-03 | 华玉叶 | Catalyst composition used for fire coal flue gas purifying |
| CN105688647A (en) * | 2016-03-16 | 2016-06-22 | 贵州大学 | Method for dry desulfurization and demercuration of sintering flue gas containing mercury by means of low-grade pyrolusite |
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