CN1031804A - Absorbent for greasy flue gas and preparation method thereof - Google Patents
Absorbent for greasy flue gas and preparation method thereof Download PDFInfo
- Publication number
- CN1031804A CN1031804A CN 88107010 CN88107010A CN1031804A CN 1031804 A CN1031804 A CN 1031804A CN 88107010 CN88107010 CN 88107010 CN 88107010 A CN88107010 A CN 88107010A CN 1031804 A CN1031804 A CN 1031804A
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- greasy
- absorbent
- preparation
- coke
- flue gas
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Abstract
Absorbent for greasy flue gas and preparation method thereof.Adsorbable mist of oil, flue dust and the NO of containing
x, SO
xIn the adsorbent of the oil smoke gas of pernicious gas, be through alkaline urea and the impregnated coke granule of alkali hydroxide soln.Its preparation method is the coke with 3～5 millimeters particle diameters, behind alkaline urea with 3～8% and 5～20% NaOH or the airtight dipping of potassium hydroxide solution, 105 ℃ of oven dry, makes its water content less than 0.1%.
Description
The invention belongs to the flue gas sorbing material, relate in particular to oil smoke aspiration enclosure material and preparation method thereof.
Oil burner, machining in metallurgical, the petrochemical industry are made quenching liquid, cooling-lubricant with oil, and the oil smoke gas that produces in the process such as food processing culinary art, and it contains pernicious gases such as mist of oil, flue dust and NOx, SOx.Still there are not effective scavenging material and purification method at present.In the prior art, NOx or SOx pernicious gas can be administered separately, but utilize a kind of materials purification NOx, SOx simultaneously, and particularly they and oil smoke dirt mix in addition that the comprehensive regulation yet there are no report.Above-mentioned oil smoke gas so far can only be outdoor with its discharge with air exhauster, promptly pollutant from indoor transfer to outdoor.
The purpose of this invention is to provide a kind of energy and adsorb adsorbent of the oil smoke gas that contains mist of oil, flue dust and gases such as NOx, SOx and preparation method thereof.
This adsorbent is that its granularity is 3～5 millimeters through alkaline urea and the impregnated coke granule of alkali hydroxide soln, and bulk density is 0.65～0.7 gram/cubic centimetre, and specific area is 3.4 meters squared per gram, and water content is less than 0.1%.
Its absorption property: the adsorption efficiency to NOx is 99%, is 70% to the SOx adsorption efficiency, is 99% to the adsorption efficiency of oil smoke dirt, and adsorption capacity is that 7%(100 gram adsorbent can adsorb 7 gram nuisances).Also adsorbable in addition various acid gas.
This preparation of adsorbent method is: the coke fragmentation is sieved, with the coke of 3～5 mm granules degree, make the maceration extract dipping with the mixed liquor of alkaline urea and alkali hydroxide soln, maceration extract did not have coke, dipping back oven dry makes its water content less than 0.1%, and it is stand-by to take out encapsulation.
The concentration of said alkaline urea is advisable with 3～8%, and the concentration of alkali hydroxide soln is advisable with 5～20%, for not making the escaping of ammonia, adds a cover sealing during dipping.Dip time is too short, floods bad; Long nonsensical and ammonia is decomposed, dip time is comparatively suitable about 2 hours.The coke that dipping is good can take out airing a period of time (as half an hour) and reenter baking oven and smoke, and baking temperature is advisable with 105 ℃, is lower than this temperature, and moisture content loses slowly, smokes time lengthening; Be higher than this temperature, ammonia is wanted dissipation.
Embodiment: the coke fragmentation with no tar is sieved, remove powder, the taking-up meso-position radius is that coke 2500 grams of 3～5 mm granules are put into 500 milliliters of sodium hydroxide solutions that contain 4% aqua ammonia and 10%, add a cover the sealing dipping after 2 hours, take out airing half an hour, put into baking oven again, smoke water content less than 0.1% with 105 ℃ temperature, the taking-up encapsulation is stand-by.
The usage of this adsorbent is to put into the adsorption layer of fixed adsorption bed, puts it in the fixed adsorption bed of smoke gas purification device of the applicant invention, can reach above-mentioned adsorption effect.
Adsorbent provided by the invention is owing to through chemical agent dipping, have the characteristic of physical absorption and chemisorbed concurrently, and not only absorption property is good, and absorption is stable, after pollutant is adsorbed, and fugacity not. In addition, owing to make the main body material with coke, with low cost, easily manufactured, for the cooking fume that contains mist of oil, flue dust and pernicious gas that is difficult to purify provides comparatively desirable sorbing material, preferably economic benefit and environmental protection benefit are arranged.
Claims (7)
1, a kind of absorbent for greasy flue gas is characterized in that through alkaline urea and the impregnated coke granule of alkali hydroxide soln.
2, adsorbent according to claim 1, the granularity that it is characterized in that said coke granule is 3～5 millimeters, bulk density is 0.65～0.7 gram/cubic centimetre, specific area 3.4 meters squared per gram, water content is less than 0.1%.
3, the preparation method of the said absorbent for greasy flue gas of a kind of claim 1, it is characterized in that coke with 3～5 millimeters particle diameters, make maceration extract with the mixed liquor of alkaline urea and alkali hydroxide soln and flood under sealing condition, oven dry makes its water content less than 0.1% afterwards.
4, according to the said method of claim 3, the concentration that it is characterized in that alkaline urea is 3～8%, and the concentration of alkali hydroxide soln is 5～20%.
5,, it is characterized in that said alkali metal hydroxide is NaOH or potassium hydroxide according to the said method of claim 4.
6,, it is characterized in that said dip time is 2 hours according to the said method of claim 3.
7,, it is characterized in that said bake out temperature is 105 ℃ according to the said method of claim 3～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107010 CN1009993B (en) | 1988-10-22 | 1988-10-22 | Absorbent for greasy flue gas and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88107010 CN1009993B (en) | 1988-10-22 | 1988-10-22 | Absorbent for greasy flue gas and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031804A true CN1031804A (en) | 1989-03-22 |
| CN1009993B CN1009993B (en) | 1990-10-17 |
Family
ID=4834475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88107010 Expired CN1009993B (en) | 1988-10-22 | 1988-10-22 | Absorbent for greasy flue gas and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1009993B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125845C (en) * | 2000-04-17 | 2003-10-29 | 武汉大学 | Solvent composition and its use |
| CN101816919A (en) * | 2010-04-16 | 2010-09-01 | 武汉钢铁(集团)公司 | Method for improving coke adsorption |
| CN107486001A (en) * | 2017-10-22 | 2017-12-19 | 赣州市经济技术开发区旺利机械加工厂 | A kind of serious pollution gas cleaning plant |
-
1988
- 1988-10-22 CN CN 88107010 patent/CN1009993B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125845C (en) * | 2000-04-17 | 2003-10-29 | 武汉大学 | Solvent composition and its use |
| CN101816919A (en) * | 2010-04-16 | 2010-09-01 | 武汉钢铁(集团)公司 | Method for improving coke adsorption |
| CN101816919B (en) * | 2010-04-16 | 2013-01-23 | 武汉钢铁(集团)公司 | Method for improving coke adsorption |
| CN107486001A (en) * | 2017-10-22 | 2017-12-19 | 赣州市经济技术开发区旺利机械加工厂 | A kind of serious pollution gas cleaning plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1009993B (en) | 1990-10-17 |
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