CN1299803C - Process for preparing flue gas desulfurization agent - Google Patents
Process for preparing flue gas desulfurization agent Download PDFInfo
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- CN1299803C CN1299803C CNB2005100126034A CN200510012603A CN1299803C CN 1299803 C CN1299803 C CN 1299803C CN B2005100126034 A CNB2005100126034 A CN B2005100126034A CN 200510012603 A CN200510012603 A CN 200510012603A CN 1299803 C CN1299803 C CN 1299803C
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- luxuriant
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- phenanthrene
- desulfurizing agent
- formaldehyde
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Abstract
The present invention provides a process for preparing flue gas desulfurizers. The present invention has the compound process that raw materials are added according to the mol ratio of the raw materials that phenanthrene: formaldehyde: benzaldehyde is 1 to 0.8-1.2 to 0.01-0.05 into a reactor with stirring, catalyst sulfuric acid is added according to 3% to 5% of the weight of phenanthrene dregs, and macromolecular compound can be obtained by condensation; then, carbonization treatment is carried out in the temperature between 600 DEGC and 800DEGC; finally, products can be obtained by carbonide pulverized, sieved and activated. The present invention uses the phenanthrene dregs as the raw materials to prepare the flue gas desulfurizers, which provides a novel process for preparing desulfurizers, solves the problems of high cost for preparing the flue gas desulfurizers and the environmental pollution caused by industrial waste dregs in order to reach the purpose that waste is used for treating pollution and purifying environment, and simultaneously, the present invention provides the novel effectively use method for the industrial utilization of the phenanthrene dregs.
Description
Technical field
The present invention relates to a kind of preparation method of fume desulfurizing agent, particularly flue gas removes SO
2Utilize the preparation method of luxuriant and rich with fragrance slag and formaldehyde and a kind of fume desulfurizing agent of benzaldehyde condensation prepared.
Background technology
Environmental problem is one of the severeest problem of facing of the mankind, and it is directly connected to human existence and development, and sulfur dioxide is extremely serious to the pollution of atmosphere, China SO
2Discharge capacity is very huge.Therefore, the control sulfur dioxide (SO2) emissions have special significance to China environmental protection.In order to control SO
2Discharging reduces its pollution to atmosphere, the researcher has carried out a large amount of research to fume desulfurizing agent, preparation to desulfurizing agent, the raw material difference of using, the method of preparation is also different, but the emphasis of research is placed on then that to prepare cheapness, practicality, Sulfur capacity height, desulfurized effect good, and can industrialized desulfurizing agent.In present open report, about not appearing in the newspapers with luxuriant and rich with fragrance slag tobacco curing gas desulfurizer.Luxuriant and rich with fragrance slag is that coal tar processing crude anthracene separates the residue in the system anthracene process, wherein mainly contain phenanthrene, carbazole and a spot of anthracene etc., because luxuriant and rich with fragrance slag does not also find the approach that effectively utilizes at present, often with the waste residue bulk deposition in plant area, these condensed-nuclei aromatics compounds cause the severe contamination to environment to animals and plants very harmful (some derivative luxuriant and rich with fragrance and anthracene is strong carcinogenic substance).In order to find the industrial utilization approach of luxuriant and rich with fragrance slag, reduce of the pollution of luxuriant and rich with fragrance slag to environment, the inventor is a research object with luxuriant and rich with fragrance slag, has studied the method that removes sulfur dioxide.The present invention is that raw material and formaldehyde and benzaldehyde carry out condensation with luxuriant and rich with fragrance slag, and charing is handled and the high-performance fume desulfurizing agent is prepared in activation then.Both turned waste into wealth like this, environment purification again with useless pollution treatment, reaches the purpose of double purified environment, can reduce the cost of synthetic sweetening agent simultaneously greatly, prepares cheap desulfurizing agent.
Summary of the invention
The problem to be solved in the present invention is to utilize luxuriant and rich with fragrance slag to prepare the process problem of desulfurizing agent, its objective is that with luxuriant and rich with fragrance slag be raw material, and a kind of preparation method of fume desulfurizing agent is provided.
The present invention realizes technique scheme and achieves the above object to be synthetic by macromolecular compound, and charing processing and desulfurizing agent activate realizes that its concrete process follows these steps to carry out successively:
1) macromolecular compound is synthetic: in having the reactor of stirring, by the feed molar proportioning be: phenanthrene: formaldehyde: benzaldehyde=1: 0.8～1.2: 0.01～0.05 adds raw material, with the concentrated sulfuric acid is catalyst, add the concentrated sulfuric acid by 3%～5% of luxuriant and rich with fragrance slag amount, follow these steps to successively react:
(1) pretreatment of raw material: at first add luxuriant and rich with fragrance slag by charge ratio in reactor, heat temperature raising is treated to begin to stir after the luxuriant and rich with fragrance slag fusion, vacuumizes under 100 ℃～120 ℃ 30 minutes～60 minutes, separates the solvent naphtha of bringing in the system anthracene process to remove moisture and crude anthracene;
(2) condensation: be cooled to 80 ℃～90 ℃, add the concentrated sulfuric acid by proportioning, and in 30 minutes, slowly add mass percent and be 37% formalin, add formaldehyde after, keep reaction temperature at 80 ℃～90 ℃, condensation 2 hours is warmed up to 100 ℃ then, adds benzaldehyde, condensation is 1 hour again, then be warmed up to 110 ℃～120 ℃ gradually, to evaporate formaldehyde water of bringing into and the water that reacts condensation formation, after water evaporates, the reaction temperature to 150 that raises again ℃, and keep and got final product in 30 minutes;
2) charing is handled: under nitrogen protection, under 600 ℃～800 ℃, the charing processing was carried out in heating in 2 hours in Muffle furnace with condensation product;
3) desulfurizing agent activation: the carbide cool to room temperature, with its fragmentation, it is 8 orders～10 order amorphous granulars that screening obtains granularity, then particle is put into tubular reactor, is 500h in air speed
-1Nitrogen in 600 ℃～650 ℃ following constant temperature 3 hours, at last it is cooled to room temperature and obtains the desulfurizing agent goods.
Another kind of feed molar proportioning in the above-mentioned process is: phenanthrene: formaldehyde: benzaldehyde=1: 0.8: 0.01 adds the concentrated sulfuric acid by 3% of luxuriant and rich with fragrance slag amount.
Also have a kind of feed molar proportioning to be in the above-mentioned process: phenanthrene: formaldehyde: benzaldehyde=1: 1.0: 0.025 adds the concentrated sulfuric acid by 4% of luxuriant and rich with fragrance slag amount.
Also have another kind of feed molar proportioning to be in the above-mentioned process: phenanthrene: formaldehyde: benzaldehyde=1: 1.2: 0.05 adds the concentrated sulfuric acid by 5% of luxuriant and rich with fragrance slag amount.
The present invention compared with prior art, both solved the high problem of desulfurizing agent preparation cost (from the price of raw material, luxuriant and rich with fragrance slag does not also find the waste residue that effectively utilizes approach for people), solved luxuriant and rich with fragrance slag industrial utilization problem again, luxuriant and rich with fragrance slag environmental pollution problem reaches the purpose with useless pollution treatment environment purification.
Its synthesis technique advantage of the present invention is: synthetic cost is low, from the price of raw material, luxuriant and rich with fragrance slag for people up till now for to also not finding the waste residue that effectively utilizes approach, cheap, thereby be the feedstock production desulfurizing agent with luxuriant and rich with fragrance slag, can reduce cost greatly; The properties of product of its preparation are: mainly consist of sulfur dioxide volume fraction 2 * 10 at flue gas
-3, steam volume fraction 10%, O
2Volume fraction 5%.At 100 ℃～200 ℃ of temperature, air speed 400h
-1Condition under, desulfurization degree is higher than 90%, absorption Sulfur capacity be 6 the gram～12 the gram SO
2/ 100 gram desulfurizing agents; Its environment protection significance is: luxuriant and rich with fragrance slag is the residue of crude anthracene process for preparation of refined anthracene, also do not find the approach that effectively utilizes at present, generally be deposited in plant area as waste residue, serious environment pollution, thereby be the agent of raw material synthetic sweetening with luxuriant and rich with fragrance slag, both prepare a kind of efficient desulfurizing agent, reached the purpose of " turn waste into wealth, with useless pollution treatment, environment purification " again, had great environment protection significance, social benefit and an economic benefit.
The specific embodiment
Embodiment 1
1) macromolecular compound is synthetic: in having the reactor of stirring, by the feed molar proportioning be: phenanthrene: formaldehyde: benzaldehyde=1: 0.8～1.2: 0.01～0.05 adds raw material, with the concentrated sulfuric acid is catalyst, add the concentrated sulfuric acid by 3%～5% of luxuriant and rich with fragrance slag amount, follow these steps to successively react:
(1) pretreatment of raw material: at first add luxuriant and rich with fragrance slag by charge ratio in reactor, heat temperature raising is treated to begin to stir after the luxuriant and rich with fragrance slag fusion, vacuumizes under 100 ℃～120 ℃ 30 minutes～60 minutes, separates the solvent naphtha of bringing in the system anthracene process to remove moisture and crude anthracene;
(2) condensation: be cooled to 80 ℃～90 ℃, add the concentrated sulfuric acid by proportioning, and in 30 minutes, slowly add mass percent and be 37% formalin, add formaldehyde after, keep reaction temperature at 80 ℃～90 ℃, condensation 2 hours is warmed up to 100 ℃ then, adds benzaldehyde, condensation is 1 hour again, then be warmed up to 110 ℃～120 ℃ gradually, to evaporate formaldehyde water of bringing into and the water that reacts condensation formation, after water evaporates, the reaction temperature to 150 that raises again ℃, and keep and got final product in 30 minutes;
2) charing is handled: under nitrogen protection, under 600 ℃～800 ℃, the charing processing was carried out in heating in 2 hours in Muffle furnace with condensation product;
3) desulfurizing agent activation: the carbide cool to room temperature, with its fragmentation, it is 8 orders～10 order amorphous granulars that screening obtains granularity, then particle is put into tubular reactor, is 500h in air speed
-1Nitrogen in 600 ℃～650 ℃ following constant temperature 3 hours, at last it is cooled to room temperature and obtains the desulfurizing agent goods.
Embodiment 2
According to the process of embodiment 1, the mole proportioning of its raw material is: phenanthrene: formaldehyde: benzaldehyde=1: 0.8: 0.01 adds the concentrated sulfuric acid by 3% of luxuriant and rich with fragrance slag amount
Embodiment 3
According to the process of embodiment 1, the mole proportioning of its raw material is: phenanthrene: formaldehyde: benzaldehyde=1: 1.0: 0.025 adds the concentrated sulfuric acid by 4% of luxuriant and rich with fragrance slag amount
Embodiment 4
According to the process of embodiment 1, the mole proportioning of its raw material is: phenanthrene: formaldehyde: benzaldehyde=1: 1.2: 0.05 adds the concentrated sulfuric acid by 5% of luxuriant and rich with fragrance slag amount
Claims (4)
1. the preparation method of fume desulfurizing agent is characterized in that the synthetic of macromolecular compound, and charing processing and desulfurizing agent activation realize by following process:
1) macromolecular compound is synthetic: in having the reactor of stirring, by the feed molar proportioning be: phenanthrene: formaldehyde: benzaldehyde=1: 0.8～1.2: 0.01～0.05 adds raw material, with the concentrated sulfuric acid is catalyst, add the concentrated sulfuric acid by 3%～5% of luxuriant and rich with fragrance slag amount, follow these steps to successively react:
(1) pretreatment of raw material: at first add luxuriant and rich with fragrance slag by charge ratio in reactor, heat temperature raising is treated to begin to stir after the luxuriant and rich with fragrance slag fusion, vacuumizes under 100 ℃～120 ℃ 30 minutes～60 minutes, separates the solvent naphtha of bringing in the system anthracene process to remove moisture and crude anthracene;
(2) condensation: be cooled to 80 ℃～90 ℃, add the concentrated sulfuric acid by proportioning, and in 30 minutes, slowly add mass percent and be 37% formalin, add formaldehyde after, keep reaction temperature at 80 ℃～90 ℃, condensation 2 hours is warmed up to 100 ℃ then, adds benzaldehyde, condensation is 1 hour again, then be warmed up to 110 ℃～120 ℃ gradually, to evaporate formaldehyde water of bringing into and the water that reacts condensation formation, after water evaporates, the reaction temperature to 150 that raises again ℃, and keep and got final product in 30 minutes;
2) charing is handled: under nitrogen protection, under 600 ℃～800 ℃, the charing processing was carried out in heating in 2 hours in Muffle furnace with condensation product;
3) desulfurizing agent activation: the carbide cool to room temperature, with its fragmentation, it is 8 orders～10 order amorphous granulars that screening obtains granularity, then particle is put into tubular reactor, is 500h in air speed
-1Nitrogen in 600 ℃～650 ℃ following constant temperature 3 hours, at last it is cooled to room temperature and obtains the desulfurizing agent goods.
2. the preparation method of fume desulfurizing agent as claimed in claim 1 is characterized in that the feed molar proportioning of this method is: phenanthrene: formaldehyde: benzaldehyde=1: 0.8: 0.01 adds the concentrated sulfuric acid by 3% of luxuriant and rich with fragrance slag amount.
3. the preparation method of fume desulfurizing agent as claimed in claim 1 is characterized in that the feed molar proportioning of this method is: phenanthrene: formaldehyde: benzaldehyde=1: 1.0: 0.025 adds the concentrated sulfuric acid by 4% of luxuriant and rich with fragrance slag amount.
4. the preparation method of fume desulfurizing agent as claimed in claim 1 is characterized in that the feed molar proportioning of this method is: phenanthrene: formaldehyde: benzaldehyde=1: 1.2: 0.05 adds the concentrated sulfuric acid by 5% of luxuriant and rich with fragrance slag amount.
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| CNB2005100126034A CN1299803C (en) | 2005-06-09 | 2005-06-09 | Process for preparing flue gas desulfurization agent |
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| CNB2005100126034A CN1299803C (en) | 2005-06-09 | 2005-06-09 | Process for preparing flue gas desulfurization agent |
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| CN1724118A CN1724118A (en) | 2006-01-25 |
| CN1299803C true CN1299803C (en) | 2007-02-14 |
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| CN108325502A (en) * | 2018-02-11 | 2018-07-27 | 江苏天楹环保能源成套设备有限公司 | A method of preparing flue gas desulfurization activated carbon using kitchen garbage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600734A (en) * | 2004-10-20 | 2005-03-30 | 太原理工大学 | Method for preparing water reducing agent for cement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600734A (en) * | 2004-10-20 | 2005-03-30 | 太原理工大学 | Method for preparing water reducing agent for cement |
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