CN108310936A - A kind of solid-state desulfurization powder of environmental protection - Google Patents
A kind of solid-state desulfurization powder of environmental protection Download PDFInfo
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- CN108310936A CN108310936A CN201810452298.8A CN201810452298A CN108310936A CN 108310936 A CN108310936 A CN 108310936A CN 201810452298 A CN201810452298 A CN 201810452298A CN 108310936 A CN108310936 A CN 108310936A
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
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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
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- 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
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Abstract
The invention belongs to environmental technology fields, disclose a kind of solid-state desulfurization powder, are prepared according to following technique：Step 1) prepares mixture 1, and step 2) prepares mixture 2, and step 3) prepares mixture 3, and step 4) prepares mixture 4, and step 5) prepares desulfurization powder.Solid-state desulfurization powder adsorption capacity of the present invention is good, and the reaction time is short, and desulfurization effect is high.
Description
Technical field
The invention belongs to environmental technology field, a kind of solid-state desulfurization powder and its preparation process are disclosed.
Background technology
Sulfur dioxide (SO2) in air is to be distributed most extensively, and quantity is maximum, endangers one of gas pollutant of most serious,
Its main source has the burning of sulfurous fuels, the smelting of containing sulfur minerals, the exhaust gas of chemical industry also to have cement kiln waste gas to discharge
The industry such as SO2.SO2 is one of main predecessor of acid rain, and the SO2 discharge capacitys in China now have occupied the first place in the world, and annual row
High-volume there is the trend increased, to be formed on the south the Changjiang river, the acid rain of large area to the east of Qinghai-Tibet Platean, wherein using Changsha as generation
Central China Acid Rain Zone acidity value of table is minimum, frequency of occurrences highest, and in the gesture of exacerbation；Southwestern Acid Rain Zone is taken second place, south China Acid Rain Zone
It is most wide with the distribution of Coastal Area in Eastern China Acid Rain Zone, it is seriously polluted.Have now found that sulfur dioxide and its acid rain to forest, soil, crops
It causes damages with building.
Currently, have more company take up research can simultaneously desulfurization preparation, there are also launch sale；Mostly
Several desulfurization preparations is in the presence of the cost is relatively high, and adsorbance is smaller, and stability is not high, and in large-scale application, there are certain to lack
It falls into.Most often pulverized powder activated carbon method, activated carbon have preferable desulfurization effect as a kind of adsorbent in recent years
Rate, but its utilization rate is low, and cost also will continue to improve, and still be difficult to realize heavy industrialization.In recent years, in environmental problem and
In the case of energy crisis getting worse, it is relatively inexpensive, effective new that goal in research is gradually transferred to exploitation both at home and abroad
Proximate matter material prepares desulfurization preparation.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of solid-state desulfurization powder, desulfurization powder desulfurization effects
Fruit is good, and sulfur capacity is high, and desulfurization time is short, can be applied to a variety of environment and carries out desulfurization.The invention also discloses above-mentioned desulfurization powders
Preparation process.
The present invention is realized by following scheme：
A kind of solid-state desulfurization powder, is prepared according to following technique：
Step 1）Prepare mixture 1, step 2）Prepare mixture 2, step 3）Prepare mixture 3, step 4）Mixture 4 is prepared,
Step 5）Prepare desulfurization powder；
Specifically, include the following steps：
Step 1）Prepare mixture 1：Calcium oxide, flyash, calcirm-fluoride and dicalcium silicate are added in mixing agitator,
600 turns/min stirs 3min, sprays dimethyl silicone polymer while stirring, after stirring, is heated to 80 DEG C, keeps the temperature 3min,
Obtain mixture 1；Wherein, the mass ratio of calcium oxide, flyash, calcirm-fluoride, dicalcium silicate and dimethyl silicone polymer is 12:
8:5:2:1；
Step 2）Prepare mixture 2：Monticellite, mullite and shepardite are used into crusher in crushing respectively, then mixed,
It puts into vibrator again, grain size to be milled to is 100-200um, stops ball milling, discharging, then with the hydrogen of a concentration of 1M
Aqueous solution of sodium oxide impregnates 6 hours, and last 60 DEG C of drying obtain mixture 2；Wherein, monticellite, mullite, shepardite
And the mass ratio of sodium hydrate aqueous solution is 5:4:3:10；
Step 3）Prepare mixture 3：Rice straw is crushed with pulverizer, is then ground to the powder of 300-500um, finally with
Nano silicon dioxide mixes, and obtains mixture 3；Wherein, the mass ratio of rice straw and nano silicon dioxide is 5:1；
Step 4）Prepare mixture 4：By dolomite and diatomite according to 1:1 mass ratio mixing, is subsequently placed in calcining furnace and forges
2h is burnt, calcination temperature is 1000 DEG C, takes out, is cooled to room temperature, crushing obtains mixture 4；
Step 5）Prepare desulfurization powder：By mixture 1, mixture 2, mixture 3 and mixture 4 according to 25-40:12-18:5-
9:The mass ratio of 3-5 is mixed evenly to get desulfurization powder.
Wherein, the grain size of nano silicon dioxide is 100-200nm.
The advantageous effect that the present invention obtains includes but not limited to mainly the following aspects：
1. desulfurization powder prepared by the present invention is powdered in solid dispersion, material combination is reasonable, and desulfurization effect is good, and sulfur capacity is high,
Shorten the vulcanization reaction time.
2. the present invention mostly uses the raw material and agricultural wastes derived from a wealth of sources so that waste becomes the new energy, solves
Environmental protection of enterprise pressure, realizing turns waste into wealth.
3. the present invention uses dolime and diatomaceous technique, adsorption effect is increased, catalysis well is played and makees
With.
4. present invention employs waste crop straws, grain size is big, forms certain pore structure, improves adsorption effect.
5. the present invention is by spraying dimethyl silicone polymer and heating so that pulvis surface forms protective film, improves powder
The holding time of agent and desulfuration efficiency.
6. the present invention improves dispersion effect, expands adsorbent capacity by adding nanometer particle.
7. the preparation method of inventive desulfurization pulvis is simple, it is suitble to industrialized production, low raw-material cost, the pulvis of preparation
It is environment friendly and pollution-free, it can be widely applied to all kinds of flue gas desulfurizations.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, having below in conjunction with the application
Body embodiment more clearly and completely describes the present invention, it is clear that described embodiment is only the application one
Divide embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Embodiment 1
A kind of solid-state desulfurization powder, is prepared according to following technique：
Step 1）Prepare mixture 1, step 2）Prepare mixture 2, step 3）Prepare mixture 3, step 4）Mixture 4 is prepared,
Step 5）Prepare desulfurization powder；
Specifically, include the following steps：
Step 1）Prepare mixture 1：Calcium oxide, flyash, calcirm-fluoride and dicalcium silicate are added in mixing agitator,
600 turns/min stirs 3min, sprays dimethyl silicone polymer while stirring, after stirring, is heated to 80 DEG C, keeps the temperature 3min,
Obtain mixture 1；Wherein, the mass ratio of calcium oxide, flyash, calcirm-fluoride, dicalcium silicate and dimethyl silicone polymer is 12:
8:5:2:1；
Step 2）Prepare mixture 2：Monticellite, mullite and shepardite are used into crusher in crushing respectively, then mixed,
It puts into vibrator again, grain size to be milled to is 100um, stops ball milling, discharging, then with the hydroxide of a concentration of 1M
Sodium water solution impregnates 6 hours, and last 60 DEG C of drying obtain mixture 2；Wherein, monticellite, mullite, shepardite and
The mass ratio of sodium hydrate aqueous solution is 5:4:3:10；
Step 3）Prepare mixture 3：Rice straw is crushed with pulverizer, is then ground to the powder of 300um, finally with nanometer
Silica mixes, and obtains mixture 3；Wherein, the mass ratio of rice straw and nano silicon dioxide is 5:1；
Step 4）Prepare mixture 4：By dolomite and diatomite according to 1:1 mass ratio mixing, is subsequently placed in calcining furnace
2h is calcined, calcination temperature is 1000 DEG C, takes out, is cooled to room temperature, crushing obtains mixture 4；
Step 5）Prepare desulfurization powder：By mixture 1, mixture 2, mixture 3 and mixture 4 according to 25:12:5:3 matter
Amount ratio is mixed evenly to get desulfurization powder.
Embodiment 2
A kind of solid-state desulfurization powder, is prepared according to following technique：
Step 1）Prepare mixture 1, step 2）Prepare mixture 2, step 3）Prepare mixture 3, step 4）Mixture 4 is prepared,
Step 5）Prepare desulfurization powder；
Specifically, include the following steps：
Step 1）Prepare mixture 1：Calcium oxide, flyash, calcirm-fluoride and dicalcium silicate are added in mixing agitator,
600 turns/min stirs 3min, sprays dimethyl silicone polymer while stirring, after stirring, is heated to 80 DEG C, keeps the temperature 3min,
Obtain mixture 1；Wherein, the mass ratio of calcium oxide, flyash, calcirm-fluoride, dicalcium silicate and dimethyl silicone polymer is 12:
8:5:2:1；
Step 2）Prepare mixture 2：Monticellite, mullite and shepardite are used into crusher in crushing respectively, then mixed,
It puts into vibrator again, grain size to be milled to is 200um, stops ball milling, discharging, then with the hydroxide of a concentration of 1M
Sodium water solution impregnates 6 hours, and last 60 DEG C of drying obtain mixture 2；Wherein, monticellite, mullite, shepardite and
The mass ratio of sodium hydrate aqueous solution is 5:4:3:10；
Step 3）Prepare mixture 3：Rice straw is crushed with pulverizer, is then ground to the powder of 500um, finally with nanometer
Silica mixes, and obtains mixture 3；Wherein, the mass ratio of rice straw and nano silicon dioxide is 5:1；
Step 4）Prepare mixture 4：By dolomite and diatomite according to 1:1 mass ratio mixing, is subsequently placed in calcining furnace
2h is calcined, calcination temperature is 1000 DEG C, takes out, is cooled to room temperature, crushing obtains mixture 4；
Step 5）Prepare desulfurization powder：By mixture 1, mixture 2, mixture 3 and mixture 4 according to 40:18:9:5 matter
Amount ratio is mixed evenly to get desulfurization powder.
Embodiment 3
The flue gas containing sulfur dioxide is simulated, while desulfurization powder prepared by embodiment 1 is routed to desulphurization reaction room, flue gas enters
The speed of reative cell be 0.5m/min, flue-gas temperature be 100 DEG C, be set separately desulfurization time be 15,25,40,60min, measure
Desulfurization degree is specifically shown in Table 1：
Table 1
Conclusion：Solid-state desulfurization powder desulfurization degree of the present invention can reach 80% or more；After reaction, desulfurization powder work is had detected
Adsorbances of the 60min to sulfur dioxide：The adsorbable sulfur dioxide 60.5mg of every gram of adsorbent, adsorption capacity is good, and the reaction time is short,
Desulfurization effect is high.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that this
A little descriptions are all exemplary, and are not limiting the scope of the invention.Those skilled in the art can be according to the present invention
Spirit and principle various variants and modifications are made to the present invention, these variants and modifications are also within the scope of the invention.
Claims (1)
1. a kind of solid-state desulfurization powder of environmental protection, which is characterized in that it is prepared according to following technique：
Step 1）Mixture 1 is prepared, is included the following steps：Calcium oxide, flyash, calcirm-fluoride and dicalcium silicate are added to mixed
It closes in blender, 600 turns/min stirs 3min, sprays dimethyl silicone polymer while stirring, after stirring, is heated to 80
DEG C, 3min is kept the temperature, mixture 1 is obtained；Wherein, calcium oxide, flyash, calcirm-fluoride, dicalcium silicate and dimethyl silicone polymer
Mass ratio be 12:8:5:2:1；
Step 2）Mixture 2 is prepared, is included the following steps：Monticellite, mullite and shepardite are used into crusher respectively
It is broken, it then mixes, then put into vibrator, grain size to be milled to is 100-200u, stops ball milling, is discharged, then
It is impregnated 6 hours with the sodium hydrate aqueous solution of a concentration of 1M, last 60 DEG C of drying obtain mixture 2；Wherein, monticellite,
The mass ratio of mullite, shepardite and sodium hydrate aqueous solution is 5:4:3:10；
Step 3）Mixture 3 is prepared, is included the following steps：Rice straw is crushed with pulverizer, is then ground to 300-500um
Powder, finally mixed with nano silicon dioxide, obtain mixture 3；Wherein, the mass ratio of rice straw and nano silicon dioxide
It is 5:1；
Step 4）Mixture 4 is prepared, is included the following steps：By dolomite and diatomite according to 1:1 mass ratio mixing, then sets
2h is calcined in calcining furnace, calcination temperature is 1000 DEG C, takes out, is cooled to room temperature, crushing obtains mixture 4；
Step 5）Desulfurization powder is prepared, is included the following steps：By mixture 1, mixture 2, mixture 3 and mixture 4 according to
40:18:9:5 mass ratio is mixed evenly to get desulfurization powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810452298.8A CN108310936A (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder of environmental protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810452298.8A CN108310936A (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder of environmental protection |
| CN201610252906.1A CN105903323B (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder and its preparation process |
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| CN201610252906.1A Division CN105903323B (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder and its preparation process |
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| CN201810452298.8A Pending CN108310936A (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder of environmental protection |
| CN201810452299.2A Withdrawn CN108525484A (en) | 2016-04-22 | 2016-04-22 | A kind of preparation process of High Efficiency Solid-State desulfurization powder |
| CN201610252906.1A Active CN105903323B (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder and its preparation process |
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| CN201610252906.1A Active CN105903323B (en) | 2016-04-22 | 2016-04-22 | A kind of solid-state desulfurization powder and its preparation process |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870900A (en) * | 2010-06-29 | 2010-10-27 | 臧鑫 | Desulphurizing powder produced by using alkaline residue and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2594337B2 (en) * | 1988-10-05 | 1997-03-26 | 三菱重工業株式会社 | Desulfurizing agent |
| CN101074402B (en) * | 2006-05-17 | 2010-05-12 | 陈钧 | Efficient sulfur-fixing agent and its usage |
| CN103495403A (en) * | 2013-08-30 | 2014-01-08 | 蚌埠首创滤清器有限公司 | Modified activated carbon adsorption desulfurization agent and its preparation method |
| CN103566879A (en) * | 2013-09-26 | 2014-02-12 | 蚌埠华纺滤材有限公司 | Expanded perlite modified activated carbon automobile exhaust desulfurizing agent, and preparation method thereof |
| CN103566880B (en) * | 2013-09-29 | 2016-01-27 | 安徽金叶炭素科技有限公司 | A kind of rice husk modified activated carbon adsorption desulfurizing agent and preparation method thereof |
| CN104479792B (en) * | 2014-12-29 | 2016-08-24 | 段仲达 | A kind of preparation method of the desulfurizing agent of boiler fired coal |
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2016
- 2016-04-22 CN CN201810452298.8A patent/CN108310936A/en active Pending
- 2016-04-22 CN CN201810452299.2A patent/CN108525484A/en not_active Withdrawn
- 2016-04-22 CN CN201610252906.1A patent/CN105903323B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870900A (en) * | 2010-06-29 | 2010-10-27 | 臧鑫 | Desulphurizing powder produced by using alkaline residue and production process thereof |
Non-Patent Citations (3)
| Title |
|---|
| 刘德昌: "《流化床燃烧技术的工业应用》", 31 January 1999, 中国电力出版社 * |
| 吕彭民: "《研究生科技论坛-长安大学研究生学术年会论文集》", 31 December 2004, 陕西科学技术出版社 * |
| 汪多仁编著: "《绿色轻工助剂》", 28 February 2006, 北京：科学技术文献出版社 * |
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| CN108525484A (en) | 2018-09-14 |
| CN105903323B (en) | 2018-07-10 |
| CN105903323A (en) | 2016-08-31 |
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