CN103721560A - Magnesium-oxide-containing flue gas desulfurization agent and preparation method thereof - Google Patents
Magnesium-oxide-containing flue gas desulfurization agent and preparation method thereof Download PDFInfo
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- CN103721560A CN103721560A CN201310671294.6A CN201310671294A CN103721560A CN 103721560 A CN103721560 A CN 103721560A CN 201310671294 A CN201310671294 A CN 201310671294A CN 103721560 A CN103721560 A CN 103721560A
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Abstract
The invention discloses a magnesium-oxide-containing flue gas desulfurization agent which is prepared from the following raw materials in parts by weight: 100-120 parts of activated carbon, 40-45 parts of magnesium oxide, 20-24 parts of calcium oxide, 40-45 parts of silicon dioxide, 14-18 parts of copper oxide, 3-4 parts of acrylamide, 10-12 parts of 2-methacryloyloxyethyl-trimethyl ammonium chloride, 10-12 parts of calcined gypsum, 30-35 parts of folium mori, 20-24 parts of chrysanthemum, 20-24 parts of the root bark of the peony tree, 5-6 parts of dried alum, 12-14 parts of potassium fluosilicate, 2-3 parts of sodium lauryl ether sulfate, 4-5 parts of an addition agent and appropriate amount of water. According to the invention, after carbonization at high temperature, folium mori, chrysanthemum and the root bark of the peony tree have the absorption function and antibiosis; 2-methacryloyloxyethyl-trimethyl ammonium chloride is used to absorb sulfur dioxide, so that the desulfurization efficiency is improved; alkaline substances such as magnesium oxide can rapidly remove sulfur and produce magnesium sulfate with high added-value, so that economic benefits are increased.
Description
Technical field
The present invention relates to a kind of desulfurizing agent, relate in particular to a kind of containing magnesium oxide flue gas desulfurization agent and preparation method thereof.
Background technology
Fume desulfurizing agent mainly contains three kinds of modes at present: the one, and combustion desulfurization method, is in coal, to add a certain amount of sulphur-fixing agent, and the sulfur dioxide that coal is generated when burning reacts with sulphur-fixing agent, generates sulfate and discharges together with slag, and this method cost is higher.Another kind method is wet desulphurization, mainly adopts spray process, and with the sulfur dioxide in alkaline aqueous solution absorption flue gas, this method water consumption is large, and desulfurization afterproduct is difficult, easily produces secondary pollution, and cost of investment is high, and floor space is large, and equipment anticorrosion requires high.Also having a kind of method is active carbon adsorption, and the life cycle of the method active carbon is shorter, and regeneration is comparatively complicated, and desulfuration efficiency is low, and washing water consumption is large, easily causes secondary pollution, and active carbon price is higher, has increased cost.
In flue gas, remove NO and NO
2method mainly contain two kinds of modes, the one, by NO and NO
2reduction, as utilize ammonia (NH
3) as reducing agent, be reduced to nitrogen, need to, according to the operational load of boiler, constantly adjust NH
3straying quatity and spray into position, to guarantee spraying into NH under optimum temperature
3, this method operating cost is higher; Another kind is that its oxidation is converted to nitrate, thereby reach, removes NO and NO
2object.
Summary of the invention
The object of the present invention is to provide a kind of magnesium oxide flue gas desulfurization agent and preparation method thereof that contains, this desulfurizing agent can remove the SO in flue gas effectively
2, can generate the magnesium sulfate of high added value.
Technical scheme of the present invention is as follows:
A kind of containing magnesium oxide flue gas desulfurization agent, it is characterized in that being made by the raw material of following weight portion: active carbon 100-120, magnesia 40-45, calcium oxide 20-24, silica 40-45, cupric oxide 14-18, acrylamide 3-4, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 10-12, calcined gypsum 10-12, mulberry leaf 30-35, chrysanthemum 20-24, root bark of tree peony 20-24, alumen 5-6, potassium fluosilicate 12-14, sodium lauryl tri(oxyethyl) sulfate 2-3, auxiliary agent 4-5, water are appropriate; Described auxiliary agent is made by the raw material of following weight portion: montmorillonite powder 10-12, titanium dioxide 1-2, jade powder 12-14, zinc gluconate 1-2, magnesia 3-4, flour 3-4, water are appropriate; Its preparation method is that flour is added to the water, and pasty state is stirred in heating, then adds other composition, makes mud shape, then sends in calcining furnace and calcine 4-5 hour at 450-500 ℃, cooling after, be ground into 100-150 order powder, obtain.
The described preparation method containing magnesium oxide flue gas desulfurization agent, it is characterized in that comprising the following steps: mulberry leaf, chrysanthemum, the root bark of tree peony are pulverized, send in retort, at 700-770 ℃, 2-3 hour is processed in charing, takes out, and adds furnishing mud shape in suitable quantity of water together with acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, silica, calcined gypsum, alumen, potassium fluosilicate, sodium lauryl tri(oxyethyl) sulfate, be heated to 80-90 ℃, grind to form 300-400 order slurry, it is neutral regulating pH value, dries; Mix and be uniformly dispersed and get final product with other surplus stocks.
Beneficial effect of the present invention
The present invention uses mulberry leaf, chrysanthemum, the root bark of tree peony through high temperature carbonization, not only has suction-operated, and antibacterial; By using MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, can adsorb SO
2, increased desulfuration efficiency; By using the alkaline matter such as magnesia, desulfurization rapidly, magnesium sulfate that can also production high added value, has increased economic benefit.
The specific embodiment
A kind of containing magnesium oxide flue gas desulfurization agent, by following weight portion (kilogram) raw material make: active carbon 110, magnesia 43, calcium oxide 22, silica 43, cupric oxide 16, acrylamide 3.5, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 11, calcined gypsum 11, mulberry leaf 33, chrysanthemum 22, the root bark of tree peony 22, alumen 5.5, potassium fluosilicate 13, sodium lauryl tri(oxyethyl) sulfate 2.5, auxiliary agent 4.5, water are appropriate; Described auxiliary agent by following weight portion (kilogram) raw material make: montmorillonite powder 10, titanium dioxide 2, jade powder 12, zinc gluconate 1, magnesia 3, flour 3, water are appropriate; Its preparation method is that flour is added to the water, and pasty state is stirred in heating, then adds other composition, makes mud shape, then sends in calcining furnace and calcine 4-5 hour at 450-500 ℃, cooling after, be ground into 100-150 order powder, obtain.
The described preparation method containing magnesium oxide flue gas desulfurization agent, comprise the following steps: mulberry leaf, chrysanthemum, the root bark of tree peony are pulverized, send in retort, at 740 ℃, charing is processed 2.5 hours, takes out, and adds furnishing mud shape in suitable quantity of water together with acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, silica, calcined gypsum, alumen, potassium fluosilicate, sodium lauryl tri(oxyethyl) sulfate, be heated to 84 ℃, grind to form 350 order slurries, it is neutral regulating pH value, dries; Mix and be uniformly dispersed and get final product with other surplus stocks.
The desulfurizing agent that the present embodiment obtains is brought in quartz reactor with synthesis of air, fully mixes SO in simulated flue gas with simulated flue gas
2content be 500ppm SO
2sO in analyzer monitoring outlet flue gas
2changes of contents, SO
2clearance reach 94%.
Claims (2)
1. containing a magnesium oxide flue gas desulfurization agent, it is characterized in that being made by the raw material of following weight portion: active carbon 100-120, magnesia 40-45, calcium oxide 20-24, silica 40-45, cupric oxide 14-18, acrylamide 3-4, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride 10-12, calcined gypsum 10-12, mulberry leaf 30-35, chrysanthemum 20-24, root bark of tree peony 20-24, alumen 5-6, potassium fluosilicate 12-14, sodium lauryl tri(oxyethyl) sulfate 2-3, auxiliary agent 4-5, water are appropriate; Described auxiliary agent is made by the raw material of following weight portion: montmorillonite powder 10-12, titanium dioxide 1-2, jade powder 12-14, zinc gluconate 1-2, magnesia 3-4, flour 3-4, water are appropriate; Its preparation method is that flour is added to the water, and pasty state is stirred in heating, then adds other composition, makes mud shape, then sends in calcining furnace and calcine 4-5 hour at 450-500 ℃, cooling after, be ground into 100-150 order powder, obtain.
2. contain according to claim 1 the preparation method of magnesium oxide flue gas desulfurization agent, it is characterized in that comprising the following steps: mulberry leaf, chrysanthemum, the root bark of tree peony are pulverized, send in retort, at 700-770 ℃, 2-3 hour is processed in charing, take out, add furnishing mud shape in suitable quantity of water together with acrylamide, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, silica, calcined gypsum, alumen, potassium fluosilicate, sodium lauryl tri(oxyethyl) sulfate, be heated to 80-90 ℃, grind to form 300-400 order slurry, it is neutral regulating pH value, dries; Mix and be uniformly dispersed and get final product with other surplus stocks.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310671294.6A CN103721560A (en) | 2013-12-12 | 2013-12-12 | Magnesium-oxide-containing flue gas desulfurization agent and preparation method thereof |
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| CN201310671294.6A CN103721560A (en) | 2013-12-12 | 2013-12-12 | Magnesium-oxide-containing flue gas desulfurization agent and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437357A (en) * | 2014-10-20 | 2015-03-25 | 安徽省宿州市龙华机械制造有限公司 | Antibacterial modified active carbon desulfurizing particles prepared from tobacco stems and tea seed hulls and preparation method of antibacterial modified active carbon desulfurizing particles |
| WO2019062451A1 (en) * | 2017-09-30 | 2019-04-04 | 中晶环境科技股份有限公司 | Flue gas desulfurization agent, and production method therefor and application thereof |
-
2013
- 2013-12-12 CN CN201310671294.6A patent/CN103721560A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437357A (en) * | 2014-10-20 | 2015-03-25 | 安徽省宿州市龙华机械制造有限公司 | Antibacterial modified active carbon desulfurizing particles prepared from tobacco stems and tea seed hulls and preparation method of antibacterial modified active carbon desulfurizing particles |
| WO2019062451A1 (en) * | 2017-09-30 | 2019-04-04 | 中晶环境科技股份有限公司 | Flue gas desulfurization agent, and production method therefor and application thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |
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| WD01 | Invention patent application deemed withdrawn after publication |