CN106582702B - A kind of cobalt acid nickel is the sulfur and mercury removing agent and preparation method thereof of raw material preparation - Google Patents
A kind of cobalt acid nickel is the sulfur and mercury removing agent and preparation method thereof of raw material preparation Download PDFInfo
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Abstract
The present invention relates to desulfuration demercuration technical fields, especially a kind of cobalt acid nickel is the sulfur and mercury removing agent and preparation method thereof of raw material preparation, it is that raw material prepares sulfur and mercury removing agent by cobalt acid nickel, mangaic acid iron, potassium chromate or cobalt acid nickel, mangaic acid iron, potassium chromate and pyrolusite powder, so that desulfuration demercuration efficiency is more excellent, sulphur in sulfur-bearing, mercury exhaust gas, mercury removal rate have been reached 98% or more by it, and the raw material chosen is easy to get, and cost is relatively low for sulfur and mercury removing agent.
Description
Technical field
The present invention relates to desulfuration demercuration technical field, especially a kind of cobalt acid nickel be raw material preparation sulfur and mercury removing agent and its
Preparation method.
Background technique
Coal is the main energy resources in China；The discharge that coal burns along with exhaust gas, and in coal, containing a large amount of
Sulfide and mercury, mercury has severe toxicity, readily volatilized, in coal combustion process, is volatized into environment, causes along with flue gas
The pollution of atmospheric environment；Moreover, mercury can also cause to seriously affect to organism, especially destroy the metabolism of biological cell
Function；Sulfide will be entered in environment in coal combustion process in the form of sulfur dioxide gas, cause to contain in air
A large amount 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
The damages such as crop, vegetation, industrial factories and miness, bring the influence of high degree to production and living, therefore, for coal burning and exhausting
The desulfuration demercuration of flue gas is processed into for necessity.
Currently, the processing technique for flue gas desulfurizing and hydrargyrum-removing is more, but most of using individual desulfurization or de-
Mercury inorganic agent carries out substep desulfuration demercuration, and it is longer not only to cause the desulfuration demercuration period, but also desulfuration demercuration higher cost；It is based on
This, occurs the processing method by desulfuration demercuration while progress, and the selection to desulfuration demercuration raw material again in the prior art, makes
The cost for obtaining its desulfuration demercuration reduces, and if number of patent application is 201610149557, using low-grade pyrolusite as raw material, makes
During it react with smoke contacts, realize the removing to sulfur dioxide in flue gas and mercury, reduction flue gas emission process two
The content of sulfur oxide, mercury etc., reduces costs；But sulfur dioxide removal rate can only be increased to by the processing method
70% or so, the removal efficiency of mercury is increased to 64% or so, so that still containing a large amount of sulfide composition and mercury in flue gas
Ingredient, after draining into environment, serious self detergent power for exceeding environment still will cause the dirt of the high degree of environment
Dye.
Summary of the invention
In order to solve the above technical problems existing in the prior art, it is raw material preparation that the present invention, which provides a kind of cobalt acid nickel,
Sulfur and mercury removing agent and preparation method thereof.
It is achieved particular by following technical scheme:
A kind of cobalt acid nickel is the sulfur and mercury removing agent of raw material preparation, is made of active constituent and carrier, active raw materials at
Divide is 1-3 parts of cobalt acid nickel, 3-7 parts of mangaic acid iron, 1-7 parts of potassium chromate in parts by weight；Active constituent accounts for sulfur and mercury removing agent quality
15-47%.
The active raw materials ingredient is 2 parts of cobalt acid nickel, 5 parts of mangaic acid iron, 5 parts of potassium chromate in parts by weight.
The carrier is aluminum oxide, silica or molecular sieve.
The molecular sieve is 3A type molecular sieve, 4A type molecular sieve or 5A type molecular sieve.
The molecular sieve, silica alumina ratio SiO2/Al2O3=2.3~3.7.
The aluminum oxide is γ-Al2O3。
The active constituent further includes the pyrolusite powder for being in parts by weight 1.3-2.7 parts.
The pyrolusite powder be by pyrolusite through overpower be 40-60W microwave radiation processing 13-21min, then by its
It is warming up to 300-400 DEG C, after being ground into the particle of 20-80 mesh, 50-90 mesh is crossed in grinding, is obtained.
Above-mentioned cobalt acid nickel is the sulfur and mercury removing agent preparation method of raw material preparation, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40-70 mesh powder respectively, is uniformly mixed, is mixed
Powder；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, 10-20min is impregnated, by its mistake
Filter, filter cake is prepared into spheroiding, use temperature be 100-120 DEG C, vacuum degree be 0.02-0.08MPa processing 8-10min to get.
The step further includes after mixing filter cake with pyrolusite powder, and kneading is at mud, then is prepared into ball-type.
Compared with prior art, the technical effect of the invention is embodied in:
It is that raw material preparation is de- by cobalt acid nickel, mangaic acid iron, potassium chromate or cobalt acid nickel, mangaic acid iron, potassium chromate and pyrolusite powder
Sulphur in sulfur-bearing, mercury exhaust gas, mercury removal rate have been reached 98% or more so that desulfuration demercuration efficiency is more excellent by sulphur mercury removal agent, and
And the raw material chosen is easy to get, cost is relatively low for sulfur and mercury removing agent.
The invention be under the action of a variety of metallic element compounds with catalysis oxidation property so that mutually it
Between increased activity, it is ensured that the active constituent on carrier can be good at in exhaust gas sulphur, mercury ingredient act on, converted
For it is non-volatile, to drop heavy valence state or substance, and be attracted in sulfur and mercury removing agent, realize sulphur in exhaust gas, mercury ingredient
Removing, effectively raise removal efficiency；Sulphur, the mercury content in discharge exhaust gas are reduced, environmental pollution rate is reduced.
Specific embodiment
It is limited below with reference to specific embodiment technical solution of the present invention is further, but claimed
Range is not only limited to made description.
In certain embodiments, cobalt acid nickel is the sulfur and mercury removing agent of raw material preparation, is made of active constituent and carrier, activity
Component materials ingredient is 1-3 parts of cobalt acid nickel, 3-7 parts of mangaic acid iron, 1-7 parts of potassium chromate in parts by weight；It is de- that active constituent accounts for desulfurization
The 15-47% of mercurial quality.
In certain embodiments, the active raw materials ingredient be in parts by weight 2 parts of cobalt acid nickel, 5 parts of mangaic acid iron,
5 parts of potassium chromate.
In certain embodiments, the carrier is aluminum oxide, silica or molecular sieve.
In certain embodiments, the molecular sieve is 3A type molecular sieve, 4A type molecular sieve or 5A type molecular sieve.
In certain embodiments, the molecular sieve, silica alumina ratio SiO2/Al2O3=2.3~3.7.
In certain embodiments, the aluminum oxide is γ-Al2O3。
In certain embodiments, the active constituent further includes the pyrolusite powder for being in parts by weight 1.3-2.7 parts.
In certain embodiments, the pyrolusite powder is the microwave radiation processing for being 40-60W through overpower by pyrolusite
13-21min, then it is warming up to 300-400 DEG C, after being ground into the particle of 20-80 mesh, 50-90 mesh is crossed in grinding, is obtained.
In certain embodiments, cobalt acid nickel is the sulfur and mercury removing agent preparation method of raw material preparation, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40-70 mesh powder respectively, is uniformly mixed, is mixed
Powder；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, 10-20min is impregnated, by its mistake
Filter, filter cake is prepared into spheroiding, use temperature be 100-120 DEG C, vacuum degree be 0.02-0.08MPa processing 8-10min to get.
In certain embodiments, the step further includes after mixing filter cake with pyrolusite powder, kneading at mud, then
It is prepared into ball-type.
Embodiment 1
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 1kg, mangaic acid iron 3kg, potassium chromate 1kg；Active constituent accounts for the 15% of sulfur and mercury removing agent quality.Carrier is three
Al 2 O, aluminum oxide are γ-Al2O3。
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 10min, filtered,
Filter cake is prepared into spheroiding, uses temperature for 100 DEG C, vacuum degree be 0.02MPa handle 8min to get.
Embodiment 2
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 3kg, mangaic acid iron 7kg, potassium chromate 7kg；Active constituent accounts for the 47% of sulfur and mercury removing agent quality.Carrier is two
Silica.
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 70 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 20min, filtered,
Filter cake is prepared into spheroiding, uses temperature for 120 DEG C, vacuum degree be 0.08MPa handle 10min to get.
Embodiment 3
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 2kg, mangaic acid iron 5kg, potassium chromate 5kg；Active constituent accounts for the 33% of sulfur and mercury removing agent quality.Carrier is 3A
Type molecular sieve, silica alumina ratio SiO2/Al2O3=2.3.
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 50 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 15min, filtered,
Filter cake is prepared into spheroiding, uses temperature for 110 DEG C, vacuum degree be 0.06MPa handle 9min to get.
Embodiment 4
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 1kg, mangaic acid iron 7kg, potassium chromate 6kg；Active constituent accounts for the 38% of sulfur and mercury removing agent quality.Carrier is 4A
Type molecular sieve, silica alumina ratio SiO2/Al2O3=3.7.
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 60 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 20min, filtered,
Filter cake is prepared into spheroiding, uses temperature for 100 DEG C, vacuum degree be 0.08MPa handle 9min to get.
Embodiment 5
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 3kg, mangaic acid iron 4kg, potassium chromate 2kg, pyrolusite powder 1.3kg；Active constituent accounts for sulfur and mercury removing agent quality
43%.Carrier is 5A type molecular sieve, silica alumina ratio SiO2/Al2O3=2.7.Pyrolusite powder is that pyrolusite is directly ground to powder
End.
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 20min, filtered,
After filter cake is mixed with pyrolusite powder, kneading prepares spheroiding at mud, uses temperature for 100 DEG C, vacuum degree 0.08MPa
Handle 8min to get.
Embodiment 6
Cobalt acid nickel be raw material preparation sulfur and mercury removing agent, be made of active constituent and carrier, active raw materials ingredient with
Weight is calculated as cobalt acid nickel 2kg, mangaic acid iron 6kg, potassium chromate 3kg, pyrolusite powder 2.7kg；Active constituent accounts for sulfur and mercury removing agent quality
20%.Carrier is 5A type molecular sieve, silica alumina ratio SiO2/Al2O3=3.1.Pyrolusite powder is to be through overpower by pyrolusite
The microwave radiation processing 18min of 50W, then 350 DEG C are warming up to, after being ground into the particle of 60 mesh, grinding is crossed 80 meshes, is obtained
?.
Preparation method, comprising the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40 mesh powders respectively, is uniformly mixed, obtains mixed powder
End；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 20min, filtered,
After filter cake is mixed with pyrolusite powder, kneading prepares spheroiding at mud, uses temperature for 100 DEG C, vacuum degree 0.08MPa
Handle 8min to get.
Test column:
The researcher of the invention, flue gas desulfurizing and hydrargyrum-removing agent prepared by embodiment 1-6 according to method used below into
It exercises and uses, and the detection removed to sulphur, the mercury ingredient in flue gas is tested, as follows:
The flue gas that the experiment uses exactly is filled with sulfur dioxide and Elemental Mercury for nitrogen simulated flue gas in nitrogen, and
Nitrogen temperature is adjusted at 80-130 DEG C, simulated flue gas is obtained；
Taking diameter is 10mm, is highly the purification pipe of 20cm, the desulfuration demercuration that into purification pipe prepared by filling embodiment 1-6
Simulated flue gas is passed through by agent from the bottom of purification pipe, so that it after sulfur and mercury removing agent, is excluded from the top of purification pipe, and
To the content detection for entering sulfur dioxide and mercury in the simulated flue gas before purifying pipe, to the simulated flue gas ejected from purification pipe
In sulfur dioxide and mercury content detection, result is as shown in table 1 below:
Table 1:
Show that the sulfur and mercury removing agent of the invention it can be seen from result can will be in sulfur-bearing, mercurous exhaust gas by upper table data
Sulphur, mercury ingredient largely remove, 98% or more removal efficiency big dragon.
Above embodiments and test column are only limitted to make further explanation and explanation to the technical solution of the invention,
It makes and being further understood from order to technical solution of the those skilled in the art to the invention, those skilled in the art are herein
On the basis of the improvement of non-protruding essential characteristics and non-significant progress made, belong to the protection scope of the invention.
Claims (9)
1. a kind of cobalt acid nickel is the sulfur and mercury removing agent of raw material preparation, be made of active constituent and carrier, which is characterized in that it is active at
Divide material composition is 1-3 parts of cobalt acid nickel, 3-7 parts of mangaic acid iron, 1-7 parts of potassium chromate in parts by weight；Active constituent accounts for desulfuration demercuration
The 15-47% of agent quality；
The cobalt acid nickel is the sulfur and mercury removing agent of raw material preparation, and preparation method includes the following steps:
(1) it after cobalt acid nickel, mangaic acid iron, potassium chromate being prepared into 40-70 mesh powder respectively, is uniformly mixed, obtains mixed-powder；
(2) add water to be prepared into slurry mixed-powder, and in the slurry by carrier impregnation, impregnate 10-20min, filtered, it will
Filter cake prepares spheroiding, uses temperature for 100-120 DEG C, vacuum degree be 0.02-0.08MPa handle 8-10min to get.
2. the sulfur and mercury removing agent that cobalt acid nickel as described in claim 1 is raw material preparation, which is characterized in that the active constituent
Material composition is 2 parts of cobalt acid nickel, 5 parts of mangaic acid iron, 5 parts of potassium chromate in parts by weight.
3. the sulfur and mercury removing agent that cobalt acid nickel as described in claim 1 is raw material preparation, which is characterized in that the carrier is three
Al 2 O, silica or molecular sieve.
4. the sulfur and mercury removing agent that cobalt acid nickel as claimed in claim 3 is raw material preparation, which is characterized in that the molecular sieve is
3A type molecular sieve, 4A type molecular sieve or 5A type molecular sieve.
5. the sulfur and mercury removing agent that cobalt acid nickel as described in claim 3 or 4 is raw material preparation, which is characterized in that the molecule
Sieve, silica alumina ratio SiO2/Al2O3=2.3~3.7.
6. the sulfur and mercury removing agent that cobalt acid nickel as claimed in claim 3 is raw material preparation, which is characterized in that three oxidations two
Aluminium is γ-Al2O3。
7. the sulfur and mercury removing agent that cobalt acid nickel as claimed in claim 1 or 2 is raw material preparation, which is characterized in that the activity
Ingredient further includes the pyrolusite powder for being in parts by weight 1.3-2.7 parts.
8. the sulfur and mercury removing agent that cobalt acid nickel as claimed in claim 7 is raw material preparation, which is characterized in that the pyrolusite powder
It is the microwave radiation processing 13-21min for being 40-60W through overpower by pyrolusite, then is warming up to 300-400 DEG C, is ground into
After the particle of 20-80 mesh, 50-90 mesh is crossed in grinding, is obtained.
9. the sulfur and mercury removing agent that cobalt acid nickel as claimed in claim 8 is raw material preparation, which is characterized in that the step, also
After mixing filter cake with pyrolusite powder, kneading is at mud, then is prepared into ball-type.
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| CN201611200073.0A CN106582702B (en) | 2016-12-22 | 2016-12-22 | A kind of cobalt acid nickel is the sulfur and mercury removing agent and preparation method thereof of raw material preparation |
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| CN201611200073.0A CN106582702B (en) | 2016-12-22 | 2016-12-22 | A kind of cobalt acid nickel is the sulfur and mercury removing agent and preparation method thereof of raw material preparation |
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| CN106582702B true CN106582702B (en) | 2019-09-13 |
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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 |
| CN105316076A (en) * | 2015-11-20 | 2016-02-10 | 株洲宏信科技发展有限公司 | Liquid fuel-coal sulfur-fixation agent and preparation method thereof |
| 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 CN201611200073.0A patent/CN106582702B/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 |
| CN105316076A (en) * | 2015-11-20 | 2016-02-10 | 株洲宏信科技发展有限公司 | Liquid fuel-coal sulfur-fixation agent and preparation method thereof |
| 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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| CN106582702A (en) | 2017-04-26 |
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Effective date of registration: 20200929 Address after: 564300 Wuchuan mercury mine, Wuchuan Autonomous County, Zunyi, Guizhou Patentee after: YINYU MINERALS WUCHUAN AUTONOMOUS COUNTY Co.,Ltd. Address before: 550025 Guiyang City, Guizhou Province Huaxi District, Guiyang City, Guizhou Province Patentee before: Guizhou University |
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