CN106582494A - Method for preparing flue gas sulfur and mercury removal agent using manganese aluminate as raw material - Google Patents
Method for preparing flue gas sulfur and mercury removal agent using manganese aluminate as raw material Download PDFInfo
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- CN106582494A CN106582494A CN201611200905.9A CN201611200905A CN106582494A CN 106582494 A CN106582494 A CN 106582494A CN 201611200905 A CN201611200905 A CN 201611200905A CN 106582494 A CN106582494 A CN 106582494A
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- Prior art keywords
- flue gas
- hydrargyrum
- raw material
- pyrolusite
- manganese aluminate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0207—Compounds of Sc, Y or Lanthanides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- 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
-
- 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
Abstract
The invention relates to the technical field of flue gas sulfur and mercury removal, and particularly to a method for preparing a flue gas sulfur and mercury removal agent using manganese aluminate as a raw material. By the addition of manganese aluminate and La2O2CO3 into pyrolusite, manganese dioxide in pyrolusite is sufficiently activated, and the sulfur and mercury removal efficiency of the manganese-based sulfur and mercury removal agent is improved. Combined with the addition of urea phosphate and phosphoric acid and the treating temperature after the addition, the pyrolusite, manganese aluminate, La2O2CO3 and the other materials are all modified, the effects on sulfides and elemental mercury are improved, the adsorption reaction to the sulfides and elemental mercury in flue gas is enhanced, the reacting efficiency is improved, the contents of the sulfides and elemental mercury in the flue gas are decreased, and the removal rates are increased, wherein the removal rates of the sulfides and mercury components in the flue gas both reaches 90% or above.
Description
Technical field
The present invention relates to flue gas desulfurizing and hydrargyrum-removing technical field, especially a kind of manganese aluminate prepare flue gas desulfurizing and hydrargyrum-removing for raw material
The method of agent.
Background technology
Coal is the main energy resources of China；Discharge of the coal burning along with waste gas, and in coal, containing substantial amounts of
Sulfide and hydrargyrum, hydrargyrum have severe toxicity, readily volatilized, in coal combustion process, are volatized in environment along with flue gas, cause
The pollution of atmospheric environment；Moreover, hydrargyrum can also to organism cause have a strong impact on, especially destroy biological cell metabolism
Function；Sulfide in coal combustion process will be entered in environment with the form of sulfur dioxide gas, cause to contain in atmosphere
Substantial amounts of sulfur dioxide, with the landing of rainwater, sulfur dioxide, oxygen and water form acid rain, drop to earth's surface, cause earth's surface agriculture
Crop, vegetation, industrial factories and miness etc. are damaged, and bring the impact of high degree to productive life, therefore, for coal burning and exhausting
The desulfuration demercuration of flue gas is processed into for necessity.
At present, it is more for the treatment technology of flue gas desulfurizing and hydrargyrum-removing, but great majority use single desulfurization or de-
Hydrargyrum inorganic agent carries out substep desulfuration demercuration, and it is longer not only to cause the desulfuration demercuration cycle, and desulfuration demercuration is relatively costly；It is based on
This, again occurs in that desulfuration demercuration in prior art while the processing method for carrying out, and the selection to desulfuration demercuration raw material, makes
The cost for obtaining its desulfuration demercuration is reduced, and such as number of patent application is 201610149557, using low-grade pyrolusite as raw material, is made
Which during reaction, realizes the removing to sulfur dioxide in flue gas and hydrargyrum with smoke contacts, reduce fume emission process two
The content of sulfur oxide, hydrargyrum etc., reduces cost；But, sulfur dioxide removal rate can only be brought up to by the processing method
70% or so, the removal efficiency of hydrargyrum is brought up to into 64% or so so that still contain substantial amounts of sulfide composition and hydrargyrum in flue gas
Composition, after draining in environment, serious self detergent power beyond environment can still cause the dirt of the high degree of environment
Dye.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of manganese aluminate and prepares cigarette for raw material
The method of desulfurization mercury removal agent.
It is achieved particular by technical scheme below：
A kind of method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) pyrolusite is prepared into into powder, adds water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 30-60 DEG C in temperature, stirs, be prepared into powder；
(3) powder of step (2) is added in the mud of step (1), is stirred, and be added thereto to urea phosphate and
Phosphoric acid, is placed in temperature for 100-130 DEG C and processes 10-20min, stir, and by its pelletize, crosses 20-60 mesh sieves, then is placed in vacuum
Spend for 80-120 DEG C of process 0.5-1.3h is warming up under 0.02-0.08MPa, obtain final product.
Described step (3), step (2) powder are 0.3-1.1 with the mud mixing quality ratio of step (1):8-15.
Described step (3), step (2) powder are 0.7 with the mud mixing quality ratio of step (1):11.
Described step (2), manganese aluminate and La2O2CO3Mass ratio be 3-5:0.7.
Described step (3), urea phosphate addition account for the 1-3% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
2-5%.
Described pyrolusite is crossed through microwave radiation processing.
Described microwave irradiation time is 20-30min, and microwave irradiation power is 80-100W.
It is that pyrolusite is warming up to 300-600 DEG C that described step (1) is prepared into powder, is added water so that pyrolusite
There is hydro-thermal reaction and efflorescence in surface.
The flue gas desulfurizing and hydrargyrum-removing agent that above-mentioned manganese aluminate is prepared for the method that raw material prepares flue gas desulfurizing and hydrargyrum-removing agent, which compares table
Area is 110-270m2/g；Pore volume is 1.5-3.1cm3/g。
Above-mentioned manganese aluminate prepares the method flue gas desulfurizing and hydrargyrum-removing agent of flue gas desulfurizing and hydrargyrum-removing agent for raw material, de- for flue gas
During the process of sulfur demercuration, it is to be filled with fixed bed reactors, flue gas is passed through in fixed bed reactors, it is de- with flue gas desulfurization
Mercurial is contacted, and is realized to flue gas desulfurizing and hydrargyrum-removing process.
Compared with prior art, the technique effect of the invention is embodied in：
By manganese aluminate and La are added in pyrolusite2O2CO3So that the manganese dioxide in pyrolusite is sufficiently activated,
Improve the desulfuration demercuration efficiency of manganio sulfur and mercury removing agent；With reference to the treatment temperature after urea phosphate, the addition of phosphoric acid and addition, make
Obtain pyrolusite and manganese aluminate and La2O2CO3Etc. being modified, the effect with sulfide, hydrargyrum simple substance is improve, enhanced to cigarette
Sulfide in gas and the adsorption reaction of Elemental Mercury, improve reaction efficiency, reduce sulfide and Elemental Mercury in flue gas
Content, improves removal efficiency so that reach more than 90% to the removal efficiency of the sulfide in flue gas and hydrargyrum composition.
Specifically, the researcher of the invention, flue gas desulfurizing and hydrargyrum-removing agent prepared by embodiment 1-6 is according to side used below
Method is used, and the detection test removed to the sulfur in flue gas, hydrargyrum composition, as follows：
The flue gas that the experiment is adopted is nitrogen simulated flue gas, that is, be exactly that sulfur dioxide and Elemental Mercury are filled with nitrogen, and
Nitrogen temperature is adjusted at 80-130 DEG C, simulated flue gas are obtained；
A diameter of 10mm is taken, is highly the purification pipe of 20cm, desulfuration demercuration prepared by embodiment 1-6 is filled in purification pipe
Agent, simulated flue gas are passed through from the bottom of purification pipe so which is excluded from the top of purification pipe after sulfur and mercury removing agent, and
Content detection to entering sulfur dioxide and hydrargyrum in the simulated flue gas before purification pipe, to from purification bank of tubes simulated flue gas out
In sulfur dioxide and hydrargyrum content detection, its result is as shown in table 1 below：
By data display in table can be seen that the invention sulfur and mercury removing agent can by the sulfide in flue gas and
The removal efficiency of Elemental Mercury reaches more than 90%, can effectively reduce the content of the sulfide in flue gas and Elemental Mercury, and adopt
With pyrolusite as primary raw material, it is modified using other compositions, especially manganese aluminate and La2O2CO3Add so that soft manganese
Ore deposit removes the increased activity of sulfide and Elemental Mercury, improves removal efficiency.
Specific embodiment
Technical scheme is further limited with reference to specific embodiment, but claimed
Scope is not only limited to description.
In certain embodiments, the method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) pyrolusite is prepared into into powder, adds water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 30-60 DEG C in temperature, stirs, be prepared into powder；
(3) powder of step (2) is added in the mud of step (1), is stirred, and be added thereto to urea phosphate and
Phosphoric acid, is placed in temperature for 100-130 DEG C and processes 10-20min, stir, and by its pelletize, crosses 20-60 mesh sieves, then is placed in vacuum
Spend for 80-120 DEG C of process 0.5-1.3h is warming up under 0.02-0.08MPa, obtain final product.
In certain embodiments, described step (3), step (2) powder with the mud mixing quality ratio of step (1) is
0.3-1.1:8-15。
In certain embodiments, described step (3), step (2) powder with the mud mixing quality ratio of step (1) is
0.7:11。
In certain embodiments, described step (2), manganese aluminate and La2O2CO3Mixing is according to any quality being not zero
Than mixing, preferably mass ratio is 3-5:0.7.
In certain embodiments, described step (3), urea phosphate addition account for the 1-3% of pyrolusite quality, and phosphoric acid is added
Amount accounts for the 2-5% of pyrolusite quality.
In certain embodiments, described pyrolusite is crossed through microwave radiation processing.
In certain embodiments, described microwave irradiation time is 20-30min, and microwave irradiation power is 80-100W.
In certain embodiments, it is that pyrolusite is warming up to 300-600 DEG C that described step (1) is prepared into powder, by which
Add water so that pyrolusite surface occurs hydro-thermal reaction and efflorescence.
Embodiment 1
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) pyrolusite is prepared into into powder, adds water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 30 DEG C in temperature, mass ratio is 3:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 0.3:8, stir, and
Urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 1% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
2%, temperature is placed in for 100 DEG C and processes 10min, stirred, by its pelletize, cross 20 mesh sieves, then be placed in vacuum for 0.02MPa
Under be warming up to 80 DEG C process 0.5h, obtain final product.
Embodiment 2
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) pyrolusite is prepared into into powder, adds water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 60 DEG C in temperature, mass ratio is 5:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 1.1:15, stir,
And urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 3% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
5%, be placed in temperature for 130 DEG C of process 20min, stir, by its pelletize, cross 60 mesh sieves, then be placed in vacuum and be
120 DEG C of process 1.3h are warming up under 0.08MPa, are obtained final product.
Embodiment 3
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) by pyrolusite through microwave radiation processing, microwave irradiation time is 20min, and microwave irradiation power is 80W, system
For into powder, add water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 40 DEG C in temperature, mass ratio is 4:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 0.7:11, stir,
And urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 2% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
3%, be placed in temperature for 110 DEG C of process 15min, stir, by its pelletize, cross 50 mesh sieves, then be placed in vacuum and be
100 DEG C of process 0.9h are warming up under 0.06MPa, are obtained final product.
Embodiment 4
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) by pyrolusite through microwave radiation processing, microwave irradiation time is 30min, and microwave irradiation power is 100W, system
For into powder, add water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 60 DEG C in temperature, mass ratio is 3:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 1.1:8, stir, and
Urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 1% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
5%, temperature is placed in for 130 DEG C and processes 10min, stirred, by its pelletize, cross 60 mesh sieves, then be placed in vacuum for 0.02MPa
Under be warming up to 120 DEG C process 0.5h, obtain final product.
Embodiment 5
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) pyrolusite is warming up to into 300 DEG C, is added water so that pyrolusite surface occurs hydro-thermal reaction and efflorescence, prepared
Into powder, add water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 30 DEG C in temperature, mass ratio is 5:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 1.1:15, stir,
And urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 2% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
4%, be placed in temperature for 100 DEG C of process 20min, stir, by its pelletize, cross 20 mesh sieves, then be placed in vacuum and be
80 DEG C of process 1.3h are warming up under 0.08MPa, are obtained final product.
Embodiment 6
The method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, comprises the following steps：
(1) by pyrolusite through microwave radiation processing, microwave irradiation time is 25min, and microwave irradiation power is 90W, is risen
Temperature is added water to 500 DEG C so that pyrolusite surface occurs hydro-thermal reaction and efflorescence, is prepared into powder, adds water and be prepared into mud
Slurry；
(2) by manganese aluminate and La2O2CO3It is to mix at 30 DEG C in temperature, mass ratio is 3:0.7, stir, be prepared into
Powder；
(3) powder of step (2) is added in the mud of step (1), mixing quality ratio is 0.3:11, stir,
And urea phosphate and phosphoric acid are added thereto to, urea phosphate addition accounts for the 1% of pyrolusite quality, and phosphoric acid addition accounts for pyrolusite quality
3%, be placed in temperature for 130 DEG C of process 10min, stir, by its pelletize, cross 60 mesh sieves, then be placed in vacuum and be
80 DEG C of process 0.5h are warming up under 0.02MPa, are obtained final product.
Above example and test row are only limitted to make the technical scheme of the invention further explanation and explanation,
In order to understanding of the those skilled in the art to the technical scheme of the invention, those skilled in the art on this basis, do
The improvement of the essential characteristics and non-significant progress of the non-protruding for going out, belongs to the protection domain of the invention.
Claims (10)
1. a kind of method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that comprise the following steps：
(1) pyrolusite is prepared into into powder, adds water and be prepared into mud；
(2) by manganese aluminate and La2O2CO3It is to mix at 30-60 DEG C in temperature, stirs, be prepared into powder；
(3) powder of step (2) is added in the mud of step (1), is stirred, and be added thereto to urea phosphate and phosphorus
Acid, is placed in temperature for 100-130 DEG C and processes 10-20min, stir, and by its pelletize, crosses 20-60 mesh sieves, then is placed in vacuum
For 80-120 DEG C of process 0.5-1.3h is warming up under 0.02-0.08MPa, obtain final product.
2. the method that manganese aluminate as claimed in claim 1 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
Step (3), step (2) powder are 0.3-1.1 with the mud mixing quality ratio of step (1):8-15.
3. the method that manganese aluminate as claimed in claim 1 or 2 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that institute
The step of stating (3), step (2) powder are 0.7 with the mud mixing quality ratio of step (1):11.
4. the method that manganese aluminate as claimed in claim 1 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
Step (2), manganese aluminate and La2O2CO3Mass ratio be 3-5:0.7.
5. the method that manganese aluminate as claimed in claim 1 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
Step (3), urea phosphate addition account for the 1-3% of pyrolusite quality, and phosphoric acid addition accounts for the 2-5% of pyrolusite quality.
6. the method that manganese aluminate as claimed in claim 1 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
Pyrolusite is crossed through microwave radiation processing.
7. the method that manganese aluminate as claimed in claim 6 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
Microwave irradiation time is 20-30min, and microwave irradiation power is 80-100W.
8. the method that manganese aluminate as claimed in claim 1 prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material, it is characterised in that described
It is that pyrolusite is warming up to 300-600 DEG C that step (1) is prepared into powder, is added water so that it is anti-that pyrolusite surface occurs hydro-thermal
Answer and efflorescence.
9. the flue gas that the manganese aluminate as described in any one of claim 1-8 is prepared for the method that raw material prepares flue gas desulfurizing and hydrargyrum-removing agent
Sulfur and mercury removing agent.
10. the manganese aluminate as described in any one of claim 1-8 prepares the method flue gas desulfurization of flue gas desulfurizing and hydrargyrum-removing agent for raw material
Mercury removal agent, when processing for flue gas desulfurizing and hydrargyrum-removing, is to be filled with fixed bed reactors, flue gas is passed through fixed bed anti-
In answering device, contact with flue gas desulfurizing and hydrargyrum-removing agent, realize to flue gas desulfurizing and hydrargyrum-removing process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611200905.9A CN106582494B (en) | 2016-12-22 | 2016-12-22 | A kind of method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611200905.9A CN106582494B (en) | 2016-12-22 | 2016-12-22 | A kind of method that manganese aluminate prepares flue gas desulfurizing and hydrargyrum-removing agent for raw material |
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| CN106582494A true CN106582494A (en) | 2017-04-26 |
| CN106582494B CN106582494B (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115337902A (en) * | 2022-07-04 | 2022-11-15 | 贵州师范大学 | Preparation method of hydrophobic gas-phase mercury removing agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422958A (en) * | 1981-03-13 | 1983-12-27 | Rhone-Poulenc Specialites Chimiques | Catalyst for desulfurization of industrial waste gases and process for preparing the catalyst |
| CN105316073A (en) * | 2015-11-27 | 2016-02-10 | 榆林学院 | Coal desulfurization experiment device and desulfurization method |
| 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
- 2016-12-22 CN CN201611200905.9A patent/CN106582494B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422958A (en) * | 1981-03-13 | 1983-12-27 | Rhone-Poulenc Specialites Chimiques | Catalyst for desulfurization of industrial waste gases and process for preparing the catalyst |
| CN105316073A (en) * | 2015-11-27 | 2016-02-10 | 榆林学院 | Coal desulfurization experiment device and desulfurization method |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115337902A (en) * | 2022-07-04 | 2022-11-15 | 贵州师范大学 | Preparation method of hydrophobic gas-phase mercury removing agent |
| CN115337902B (en) * | 2022-07-04 | 2023-10-24 | 贵州师范大学 | Preparation method of hydrophobic gas-phase mercury removal agent |
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| Publication number | Publication date |
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| CN106582494B (en) | 2019-04-16 |
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