CN104888713A - Volcanic rock adsorbent for flue gas mercury removal and preparation method of volcanic rock adsorbent - Google Patents
Volcanic rock adsorbent for flue gas mercury removal and preparation method of volcanic rock adsorbent Download PDFInfo
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- CN104888713A CN104888713A CN201510259188.6A CN201510259188A CN104888713A CN 104888713 A CN104888713 A CN 104888713A CN 201510259188 A CN201510259188 A CN 201510259188A CN 104888713 A CN104888713 A CN 104888713A
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Abstract
The invention discloses a volcanic rock adsorbent for flue gas mercury removal and a preparation method of the volcanic rock adsorbent. The adsorbent is characterized by being prepared from the following raw materials, by weight part: 8-15 of calcium carbonate fiber, 20-40 of tetrabutyl titanate, 3-5 of silica sol, 6-8 of calcium aluminate, 60-80 of volcanic rock, 6-9 of PA6 nylon powder, 3-4 of gelatin, 1-3 of ammonium bicarbonate, 3-5 of polyacrylamide, 5-8 of 13x molecular sieve, and a proper amount of deionized water. Polyacrylamide and 13x molecular sieve added in the adsorbent have a synergistic effect, are good in adsorption of mercury and strong in adsorption effect on dust and particles, have an excellent purification effect on flue gas, and protect the environment. The prepared adsorbent has excellent adsorption effect on various pollutants, is high in adsorption efficiency, quick in adsorption speed, and easy to remove, and is good in reuse effect. The adsorbent has excellent physical chemical and mechanical stability, is low in cost, and is green and environment-friendly.
Description
Technical field
the present invention relates to a kind of absorbent fields, be specifically related to a kind of flue gas demercuration volcanic rock adsorbent and preparation method thereof.
Background technology
In recent years, the pollution problem of the trace metal element that rapid industrial development causes receives the extensive concern of people, and particularly mercury pollution crisis is increasingly serious.Mercury is as a kind of main global contaminant, and atmospheric residence time is long, and toxicity is large, and there is bioaccumulation, not only pollution of ecological environment, also enters human body by modes such as breathing, skin contact, diet, seriously injures the healthy of the mankind.Mercury is discharged in environment mainly through nature and mankind's activity, and coal-burning boiler is the maximum man-made pollution source of mercury emissions.China is the large consumption of coal state of the first in the world, and in energy resource structure, the ratio of coal is up to 75%, and this general layout does not still have large change within the quite a long time from now on.Therefore, researching and developing effective coal-fired flue-gas mercury pollution control method is one of vital task of facing of Environmental Protection in China scientific and technical personnel.
Volcanic rock quality is hard as lithotome, coating surface honeycomb porous, specific area is large, and soak change without exception in water, water proofing property is splendid, fire prevention, weather resisteant is good, can prevent the deterioration caused because of ultraviolet, have nontoxic, tasteless, intensity is high, heat insulation, acid and alkali-resistance, stain resistance, corrosion-resistant, resistance toly to go mouldy, and the advantage such as pollution-free, "dead", as sorbent material, there is good application prospect.Although at present adsorption rate and adsorption capacity are improved, after absorption adsorbent and solvent not easily separated, the present invention adds magnetic material in sorbent material makes adsorbent can be good at being separated, and expands the range of application of adsorbent.
Summary of the invention
The object of this invention is to provide a kind of flue gas demercuration volcanic rock adsorbent and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of flue gas demercuration volcanic rock adsorbent and preparation method thereof, is made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, polyacrylamide 3-5,13x molecular sieve 5-8, deionized water are appropriate;
A kind of flue gas demercuration volcanic rock adsorbent of the present invention and preparation method thereof, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.
Advantage of the present invention is: the present invention adopts calcium carbonate fiber to mix with TiO 2 sol, enhance the intensity of TiO 2 sol, bactericidal properties, the performance of the aspect such as adsorbance and heat resistance, adopt gelatin and PA6 to be added to define skeleton when calcining in volcanic rock and make Adhesion enhancement between volcanic rock, not easily be scattered when making adsorbent dry linting, wearability strengthens, extend service life, and double-layer porous road adsorption microspheres made by adsorbent by the present invention, enhance adsorption capacity and adsorption rate, to tiny field trash, there is good adsorption effect, expand adsorption range, the polyacrylamide added and 13x molecular sieve synergy, good to the suction-operated of mercury, and to dust, the suction-operated of particle is strong, to flue gas, there is good catharsis, protect environment, adsorbent prepared by the present invention has good adsorption effect to various pollutant, adsorption efficiency is high, adsorption rate soon and easily remove, reuse effective, there is good physical chemistry and mechanical stability, low and the environmental protection of cost.
Detailed description of the invention
Below by instantiation, the present invention is described in detail.
A kind of flue gas demercuration volcanic rock adsorbent and preparation method thereof, is made up of the raw material of following weight portion (kilogram): calcium carbonate fiber 12, butyl titanate 35, Ludox 4, calcium aluminate 6, volcanic rock 76, PA6 nylon powder 7, gelatin 3, carbonic hydroammonium 2, polyacrylamide 4,13x molecular sieve 7, deionized water are appropriate;
A kind of flue gas demercuration volcanic rock adsorbent of the present invention and preparation method thereof, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 4 times amount is mixed, magnetic agitation 1h, continuing magnetic agitation 2h again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slowly dripping deionized water, continue stirring after gel to be formed 0.6 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 250 ° of C, calcine 1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, adopt pressure to be that mixture is pressed into bead by the ball press of 20t, select particle size after screening for subsequent use as ball core at the bead of 5-15mm scope;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550 ° of C 3h and become porous complex microsphere.
Example 0.5g adsorbent and mass concentration are that the methylene blue solution 500ml of 100mg/l reacts, and test index is as follows:
Clearance (%): 94.1;
Adsorbance (mg/g): 62.7;
Clearance (repeating 6 times, %): 68.1;
Compression strength (N/): 23;
Rate of wear (%): 1.1;
Mercury clearance (72h, %): 87.2.
Claims (2)
1. flue gas demercuration volcanic rock adsorbent and preparation method thereof, it is characterized in that, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, polyacrylamide 3-5,13x molecular sieve 5-8, deionized water are appropriate.
2. a kind of flue gas demercuration volcanic rock adsorbent and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:
(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;
(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;
(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;
(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510259188.6A CN104888713A (en) | 2015-05-21 | 2015-05-21 | Volcanic rock adsorbent for flue gas mercury removal and preparation method of volcanic rock adsorbent |
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| CN201510259188.6A CN104888713A (en) | 2015-05-21 | 2015-05-21 | Volcanic rock adsorbent for flue gas mercury removal and preparation method of volcanic rock adsorbent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017027230A1 (en) * | 2015-08-11 | 2017-02-16 | Calgon Carbon Corporation | Enhanced sorbent formulation for removal of mercury from flue gas |
| CN106643086A (en) * | 2017-02-24 | 2017-05-10 | 博敏电子股份有限公司 | Tunnel type drying device and drying method for drying of printed wiring board after electroless plating copper |
| CN113684077A (en) * | 2021-08-24 | 2021-11-23 | 中国华能集团有限公司南方分公司 | Coal treatment method for reducing sulfur content in flue gas |
| US11857942B2 (en) | 2012-06-11 | 2024-01-02 | Calgon Carbon Corporation | Sorbents for removal of mercury |
Citations (3)
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| CN101402481A (en) * | 2008-10-16 | 2009-04-08 | 同济大学 | Mesoporous adsorption type aluminum salt composite flocculent synthesis method and uses thereof |
| CN201254510Y (en) * | 2008-03-24 | 2009-06-10 | 广州市碧蓝湖泊研究所有限公司 | Composite water purifier of landscape small water body |
| CN103993520A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Composite fuel oil filter paper with high filtration efficiency and preparation method thereof |
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2015
- 2015-05-21 CN CN201510259188.6A patent/CN104888713A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201254510Y (en) * | 2008-03-24 | 2009-06-10 | 广州市碧蓝湖泊研究所有限公司 | Composite water purifier of landscape small water body |
| CN101402481A (en) * | 2008-10-16 | 2009-04-08 | 同济大学 | Mesoporous adsorption type aluminum salt composite flocculent synthesis method and uses thereof |
| CN103993520A (en) * | 2014-04-25 | 2014-08-20 | 蚌埠凤凰滤清器有限责任公司 | Composite fuel oil filter paper with high filtration efficiency and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 彭治汉等主编: "《塑料工业手册：聚酰胺》", 30 November 2011 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11857942B2 (en) | 2012-06-11 | 2024-01-02 | Calgon Carbon Corporation | Sorbents for removal of mercury |
| WO2017027230A1 (en) * | 2015-08-11 | 2017-02-16 | Calgon Carbon Corporation | Enhanced sorbent formulation for removal of mercury from flue gas |
| US10967357B2 (en) | 2015-08-11 | 2021-04-06 | Calgon Carbon Corporation | Enhanced sorbent formulation for removal of mercury from flue gas |
| CN106643086A (en) * | 2017-02-24 | 2017-05-10 | 博敏电子股份有限公司 | Tunnel type drying device and drying method for drying of printed wiring board after electroless plating copper |
| CN113684077A (en) * | 2021-08-24 | 2021-11-23 | 中国华能集团有限公司南方分公司 | Coal treatment method for reducing sulfur content in flue gas |
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Application publication date: 20150909 |