CN104841395A - Porous straw sulfur removal adsorbent and preparation method thereof - Google Patents
Porous straw sulfur removal adsorbent and preparation method thereof Download PDFInfo
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- CN104841395A CN104841395A CN201510192380.8A CN201510192380A CN104841395A CN 104841395 A CN104841395 A CN 104841395A CN 201510192380 A CN201510192380 A CN 201510192380A CN 104841395 A CN104841395 A CN 104841395A
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Abstract
The invention discloses a porous straw sulfur removal adsorbent and a preparation method thereof. The porous straw sulfur removal adsorbent is prepared from 90-100 parts by weight of straws, 0.4-1 part by weight of ammonium bicarbonate, 25-40 parts by weight of N-butyl titanate, 15-20 parts by weight of monazite powder, 4-5 parts by weight of sodium silicate, 11-15 parts by weight of attapulgite, 0.1-0.5 parts by weight of a borate coupling agent, 3-4 parts by weight of polyethylene glycol and a proper amount of distilled water. The porous straw sulfur removal adsorbent has the advantages of low raw material price, wide sources, small use amount, low cost, synergism of components, substantial sorption effect on sulfur, no toxicity, no damage and storage easiness.
Description
Technical field
the present invention relates to a kind of absorbent fields, be specifically related to a kind of porous stalk sulfur removal sorbents and preparation method thereof.
Background technology
Sulfur dioxide in air distributes the most extensively, the industry such as quantity is maximum, endangers one of the most serious gas pollutant, and its main source has the burning of sulfurous fuels, the smelting of containing sulfur minerals, the waste gas of chemical industry, the sulfur dioxide also having cement kiln waste gas to discharge.Sulfur dioxide is one of main predecessor of acid rain, and first of the SO2 emissions Xian Yiju world of China, and every annual emissions also has the trend increased, seriously polluted.Have now found that sulfur dioxide and acid rain thereof work the mischief to forest, soil, crops and building.So we will carry out desulfurization process to the flue gas of plant emissions, there is good society, economy and environment benefit.
Stalk is an important biomass resource in production estimation system, and its content of cellulose is higher.Native cellulose is a kind of renewable resource and a kind of novel sorbing material, and it take native cellulose as matrix, has good hydrophily and loose structure, has wide material sources, renewable, degradable, environmental friendliness, the multiple advantage such as cheap.China is large agricultural country, has abundant stalk resource, accounts for the left and right of 25% of world's stalk resource, but it is still delayed to its disposal options at present, a large amount of stalk goes out of use in field or directly burns, and this had both caused the waste of a large amount of biomass energies, also brings serious pollution to environment.Nano titanium oxide, as a kind of friendly photochemical catalyst, has good redox ability, is therefore widely used in the field such as sewage disposal, purification of air.But utilize various carrier to fix the photocatalysis effect of the adsorbent that nano titanium oxide is made in recent years and recovery utilization rate not high, the present invention is intended to prepare a kind of cheapness, productive rate is high, less energy consumption, adsorption time are short, the simple adsorbent of preparation technology, for the development of adsorbent lays the foundation.
Summary of the invention
The object of this invention is to provide a kind of porous stalk sulfur removal sorbents and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of porous stalk sulfur removal sorbents and preparation method thereof, is made up of the raw material of following weight portion: stalk 90-100, ammonium hydrogencarbonate 0.4-1, tetrabutyl titanate 25-40, monazite powder 15-20, sodium metasilicate 4-5, attapulgite 11-15, boric acid ester coupler 0.1-0.5, polyethylene glycol 3-4, distilled water are appropriate;
A kind of porous stalk sulfur removal sorbents of the present invention and preparation method thereof, be made up of following concrete steps:
(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 8-20 order in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 1-2 days, again the mixing of stalk, attapulgite and ammonium hydrogencarbonate is added in Muffle furnace and heats up with the speed of 10 ~ 30 ° of C per minute, raised temperature is to 600-700 ° of C, constant temperature keeps 60-80min, naturally cools to room temperature;
(2) the charing stalk mixture of monazite powder, step (1) gained and boric acid ester coupler mixed grinding are uniformly dispersed, again by this mixture and polyethylene glycol, distilled water, sodium metasilicate mixing and stirring, be heated to 50-60 ° of C, form slurry, for subsequent use after spraying dry;
(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 3-4 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 70-100ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 1-2 days, places colloidal sol in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 480-520 ° of C, calcine 4-6h.
Advantage of the present invention is: the present invention utilizes discarded straw for biomass carbon, achieve twice laid, the active carbon specific area of preparation is large, advantages of good adsorption effect, and utilize boric acid ester coupler and other to have adsorbing ground material, enhance the physisorption of material itself, and as the carrier of titanium dioxide, improve the photocatalytic activity of titanium dioxide, and recycle conveniently, increase economic efficiency, cost of material of the present invention is low, wide material sources, consumption is few, there is the advantage that cost is low, act synergistically mutually between composition, remarkable to the suction-operated of sulphur, nontoxic, and easily store.
Detailed description of the invention
Below by instantiation, the present invention is described in detail.
A kind of porous stalk sulfur removal sorbents and preparation method thereof, is made up of the raw material of following weight portion (kilogram): stalk 100, ammonium hydrogencarbonate 0.6, tetrabutyl titanate 35, monazite powder 18, sodium metasilicate 4, attapulgite 13, boric acid ester coupler 0.2, polyethylene glycol 3, distilled water are appropriate;
A kind of porous stalk sulfur removal sorbents of the present invention and preparation method thereof, be made up of following concrete steps:
(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 20 orders in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 2 days, again the mixing of stalk, attapulgite and ammonium hydrogencarbonate is added in Muffle furnace and heats up with the speed of 10 ~ 30 ° of C per minute, raised temperature to 700 ° C, constant temperature keeps 80min, naturally cools to room temperature;
(2) the charing stalk mixture of monazite powder, step (1) gained and boric acid ester coupler mixed grinding are uniformly dispersed, again by this mixture and polyethylene glycol, distilled water, sodium metasilicate mixing and stirring, be heated to 60 ° of C, form slurry, for subsequent use after spraying dry;
(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 4 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 70ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 2 days, colloidal sol is placed in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 500 ° of C, calcine 5h.
The adsorbent prepared by this law carries out desulfurization process to industrial waste gas, and average desulfurization degree is 70.1%.
Claims (2)
1. porous stalk sulfur removal sorbents and preparation method thereof, it is characterized in that, be made up of the raw material of following weight portion: stalk 90-100, ammonium hydrogencarbonate 0.4-1, tetrabutyl titanate 25-40, monazite powder 15-20, sodium metasilicate 4-5, attapulgite 11-15, boric acid ester coupler 0.1-0.5, polyethylene glycol 3-4, distilled water are appropriate.
2. a kind of porous stalk sulfur removal sorbents and preparation method thereof according to claim 1, is characterized in that, be made up of following concrete steps:
(1) stalk is first cleaned up with distilled water, ovendry power is added to after being broken to 8-20 order in the hydrochloric acid solution of 0.3mol/l and floods, flood and wash into neutral post-drying with distilled water after 1-2 days, again the mixing of stalk, attapulgite and ammonium hydrogencarbonate is added in Muffle furnace and heats up with the speed of 10 ~ 30 ° of C per minute, raised temperature is to 600-700 ° of C, constant temperature keeps 60-80min, naturally cools to room temperature;
(2) the charing stalk mixture of monazite powder, step (1) gained and boric acid ester coupler mixed grinding are uniformly dispersed, again by this mixture and polyethylene glycol, distilled water, sodium metasilicate mixing and stirring, be heated to 50-60 ° of C, form slurry, for subsequent use after spraying dry;
(3) tetrabutyl titanate is added in the absolute ethyl alcohol of 3-4 times amount, the mixture of step (2) gained is added after stirring, accelerate to stir, in the process of stirring, slowly add the ethanol 70-100ml of 75%, regulate PH to 1-2 with nitric acid, after stirring 30min, still aging 1-2 days, places colloidal sol in an oven in 105 ° of C dryings, is ground into powder after drying, put into Muffle furnace, under 480-520 ° of C, calcine 4-6h.
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| CN201510192380.8A CN104841395A (en) | 2015-04-22 | 2015-04-22 | Porous straw sulfur removal adsorbent and preparation method thereof |
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| CN201510192380.8A CN104841395A (en) | 2015-04-22 | 2015-04-22 | Porous straw sulfur removal adsorbent and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105148874A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Composite porous flue gas adsorbent |
| CN105148873A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Dust-removing and smoke-removing adsorbent |
| CN105148840A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Coal ash flue gas demercuration adsorbent |
| CN105148862A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Adsorbent having long storage time and low failure rate |
| CN105148864A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Fly ash-based heavy metal absorbent |
| CN105148863A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Pump adsorbent |
| CN105148865A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Gas adsorbent |
| CN105148861A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Multifunctional adsorbent |
| CN105148841A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | High temperature resistant mercury adsorbing agent |
| CN105195104A (en) * | 2015-09-01 | 2015-12-30 | 安徽省含山县天顺环保设备有限公司 | Adsorbing agent capable of purifying car exhaust |
| CN108164187A (en) * | 2018-01-08 | 2018-06-15 | 广东工业大学 | A kind of biological active granulated pavement maintenance material and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148874A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Composite porous flue gas adsorbent |
| CN105148873A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Dust-removing and smoke-removing adsorbent |
| CN105148840A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Coal ash flue gas demercuration adsorbent |
| CN105148862A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Adsorbent having long storage time and low failure rate |
| CN105148864A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Fly ash-based heavy metal absorbent |
| CN105148863A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Pump adsorbent |
| CN105148865A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Gas adsorbent |
| CN105148861A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | Multifunctional adsorbent |
| CN105148841A (en) * | 2015-09-01 | 2015-12-16 | 安徽省含山县天顺环保设备有限公司 | High temperature resistant mercury adsorbing agent |
| CN105195104A (en) * | 2015-09-01 | 2015-12-30 | 安徽省含山县天顺环保设备有限公司 | Adsorbing agent capable of purifying car exhaust |
| CN108164187A (en) * | 2018-01-08 | 2018-06-15 | 广东工业大学 | A kind of biological active granulated pavement maintenance material and preparation method thereof |
| CN108164187B (en) * | 2018-01-08 | 2020-12-15 | 广东工业大学 | Bioactive granular pavement maintenance material and preparation method thereof |
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