CN103736452A - Desulfurizer containing diatomite and preparation method thereof - Google Patents
Desulfurizer containing diatomite and preparation method thereof Download PDFInfo
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- CN103736452A CN103736452A CN201310671134.1A CN201310671134A CN103736452A CN 103736452 A CN103736452 A CN 103736452A CN 201310671134 A CN201310671134 A CN 201310671134A CN 103736452 A CN103736452 A CN 103736452A
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Abstract
A desulfurizer containing diatomite is prepared by the following raw materials by weight: 40-45 parts of active carbon, 30-35 parts of diatomite, 10-12 parts of fly ash, 20-24 parts of calcium hydroxide, 3-4 parts of urea, 10-12 parts of montmorillonite, 3-4 parts of citric acid, 3-4 parts of carboxymethyl cellulose, 10-14 parts of carboxymethyl starch, 20-24 parts of honeysuckle flowers, 30-34 parts of lotus leaves, 2-3 parts of polyoxyethylene octylphenol ether, 4-5 parts of auxiliary agents, and a proper amount of water. By using diatomite, montmorillonite, honeysuckle flowers, and lotus leaves and through high temperature charring, the desulfurizer of the invention has a spatial net structure, has a lot of surface pores, is large in specific surface area and good in adsorptivity, greatly improves the flue gas desulfurization efficiency, and also has antibacterial effect; by using fly ash, the desulfurizer of the invention is large in specific surface area and high in activity, saves cost, and reduces environment pollution caused by fly ash.
Description
Technical field
The present invention relates to a kind of desulfurizing agent, relate in particular to a kind of containing diatomite desulfurizing 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.
The method that removes NO and NO2 in flue gas mainly contains two kinds of modes, the one, by NO and NO2 reduction, as utilize ammonia (NH3) as reducing agent, be reduced to nitrogen, need to be according to the operational load of boiler, constantly adjust the straying quatity of NH3 and spray into position, to guarantee spraying into NH3 under optimum temperature, this method operating cost is higher; Another kind is that its oxidation is converted to nitrate, thereby reaches the object that removes NO and NO2.
Summary of the invention
The object of the present invention is to provide a kind of diatomite desulfurizing agent and preparation method thereof that contains, this desulfurizing agent desulfuration efficiency is high, and speed is fast.
Technical scheme of the present invention is as follows:
A kind of containing diatomite desulfurizing agent, it is characterized in that being made by the raw material of following weight portion: active carbon 40-45, diatomite 30-35, flyash 10-12, calcium hydroxide 20-24, urea 3-4, montmorillonite 10-12, citric acid 3-4, carboxymethyl cellulose 3-4, CMS 10-14, honeysuckle 20-24, lotus leaf 30-34, OPEO 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, active carbon 3-4, medical stone 2-3, ammonium chloride 3-4, flour 4-5, 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 diatomite desulfurizing agent, it is characterized in that comprising the following steps: montmorillonite, honeysuckle, lotus leaf are pulverized, send into together with diatomite in retort, at 690-750 ℃, 2-3 hour is processed in charing, takes out, and adds furnishing mud shape in suitable quantity of water together with active carbon, flyash, urea, citric acid, carboxymethyl cellulose, CMS, OPEO, be heated to 80-90 ℃, grind to form 200-300 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
Desulfurizing agent of the present invention, by using diatomite, montmorillonite, honeysuckle, lotus leaf, through high temperature carbonization, has the network structure of having living space, and surface hole defect is many, and specific area is large, and excellent adsorption has improved smoke desulfurization efficiency greatly, also has anti-microbial property; By using flyash, specific area is large, active high, has saved cost, has reduced the pollution of flyash to environment.
The specific embodiment
A kind of containing diatomite desulfurizing agent, by following weight portion (kilogram) raw material make: active carbon 43, diatomite 33, flyash 11, calcium hydroxide 22, urea 3.5, montmorillonite 11, citric acid 3.5, carboxymethyl cellulose 3.5, CMS 12, honeysuckle 22, lotus leaf 32, OPEO 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 1, active carbon 4, medical stone 2, ammonium chloride 3, flour 5, 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 diatomite desulfurizing agent, comprise the following steps: montmorillonite, honeysuckle, lotus leaf are pulverized, send into together with diatomite in retort, at 720 ℃, charing is processed 2.5 hours, takes out, and adds furnishing mud shape in suitable quantity of water together with active carbon, flyash, urea, citric acid, carboxymethyl cellulose, CMS, OPEO, be heated to 85 ℃, grind to form 250 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 96%.
Claims (2)
1. containing a diatomite desulfurizing agent, it is characterized in that being made by the raw material of following weight portion: active carbon 40-45, diatomite 30-35, flyash 10-12, calcium hydroxide 20-24, urea 3-4, montmorillonite 10-12, citric acid 3-4, carboxymethyl cellulose 3-4, CMS 10-14, honeysuckle 20-24, lotus leaf 30-34, OPEO 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, active carbon 3-4, medical stone 2-3, ammonium chloride 3-4, flour 4-5, 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 diatomite desulfurizing agent, it is characterized in that comprising the following steps: montmorillonite, honeysuckle, lotus leaf are pulverized, send into together with diatomite in retort, at 690-750 ℃, 2-3 hour is processed in charing, take out, add furnishing mud shape in suitable quantity of water together with active carbon, flyash, urea, citric acid, carboxymethyl cellulose, CMS, OPEO, be heated to 80-90 ℃, grind to form 200-300 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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| CN201310671134.1A CN103736452A (en) | 2013-12-12 | 2013-12-12 | Desulfurizer containing diatomite and preparation method thereof |
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| CN201310671134.1A CN103736452A (en) | 2013-12-12 | 2013-12-12 | Desulfurizer containing diatomite and preparation method thereof |
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| CN103736452A true CN103736452A (en) | 2014-04-23 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307493A (en) * | 2014-09-23 | 2015-01-28 | 尤明 | Solid and durable activated carbon diatomite particles for desulfurization and dust removal and preparation method thereof |
| CN104437428A (en) * | 2014-11-13 | 2015-03-25 | 安徽凤凰滤清器股份有限公司 | Novel multi-carbon antibacterial desulfurization particles with good mixing performance and preparation method of novel multi-carbon antibacterial desulfurization particles |
| CN104475015A (en) * | 2014-10-20 | 2015-04-01 | 安徽省宿州市龙华机械制造有限公司 | An activated carbon-diatomite desulfurizer comprising ceramic cellucotton and a preparing method thereof |
| CN104475050A (en) * | 2014-11-13 | 2015-04-01 | 安徽凤凰滤清器股份有限公司 | Activated carbon diatomite particles capable of rapid purification of flue gas and preparation method thereof |
| CN104475054A (en) * | 2014-11-20 | 2015-04-01 | 安徽天泰环保科技有限公司 | Active-carbon diatomite particles with magnetism and function of enhancing desulfurization effect and preparation method of active-carbon diatomite particles |
| CN105293614A (en) * | 2014-06-19 | 2016-02-03 | 南通醋酸纤维有限公司 | Method for removing phosphorus from wastewater by utilizing coal ash |
| CN109621691A (en) * | 2018-11-14 | 2019-04-16 | 湖南碧德环保科技有限公司 | A kind of dry method low-temperature flue gas desulfurizing agent and preparation method |
-
2013
- 2013-12-12 CN CN201310671134.1A patent/CN103736452A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293614A (en) * | 2014-06-19 | 2016-02-03 | 南通醋酸纤维有限公司 | Method for removing phosphorus from wastewater by utilizing coal ash |
| CN105293614B (en) * | 2014-06-19 | 2018-02-13 | 南通醋酸纤维有限公司 | A kind of method that Phosphorus From Wastewater is removed using flyash |
| CN104307493A (en) * | 2014-09-23 | 2015-01-28 | 尤明 | Solid and durable activated carbon diatomite particles for desulfurization and dust removal and preparation method thereof |
| CN104475015A (en) * | 2014-10-20 | 2015-04-01 | 安徽省宿州市龙华机械制造有限公司 | An activated carbon-diatomite desulfurizer comprising ceramic cellucotton and a preparing method thereof |
| CN104437428A (en) * | 2014-11-13 | 2015-03-25 | 安徽凤凰滤清器股份有限公司 | Novel multi-carbon antibacterial desulfurization particles with good mixing performance and preparation method of novel multi-carbon antibacterial desulfurization particles |
| CN104475050A (en) * | 2014-11-13 | 2015-04-01 | 安徽凤凰滤清器股份有限公司 | Activated carbon diatomite particles capable of rapid purification of flue gas and preparation method thereof |
| CN104475054A (en) * | 2014-11-20 | 2015-04-01 | 安徽天泰环保科技有限公司 | Active-carbon diatomite particles with magnetism and function of enhancing desulfurization effect and preparation method of active-carbon diatomite particles |
| CN109621691A (en) * | 2018-11-14 | 2019-04-16 | 湖南碧德环保科技有限公司 | A kind of dry method low-temperature flue gas desulfurizing agent and preparation method |
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Application publication date: 20140423 |
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| WD01 | Invention patent application deemed withdrawn after publication |