CN202683045U - High-level oxidizing, catalyzing, desulfurizing and denitrating integral device - Google Patents
High-level oxidizing, catalyzing, desulfurizing and denitrating integral device Download PDFInfo
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- CN202683045U CN202683045U CN 201220208838 CN201220208838U CN202683045U CN 202683045 U CN202683045 U CN 202683045U CN 201220208838 CN201220208838 CN 201220208838 CN 201220208838 U CN201220208838 U CN 201220208838U CN 202683045 U CN202683045 U CN 202683045U
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Abstract
The utility model discloses a high-level oxidizing, catalyzing, desulfurizing and denitrating integral device. The device comprises an oxidizing fan, an absorbing tower, an ozone generating device, an ozone distributing device, a catalyst storing tank, a circular pump a, a circular pump b, a circular pump c, a laminar separator, a filter, an ammonia water tank, a high-position tank, a crystallizing and drying system, a chemical fertilizer packing and outward transporting system and an industrial water tank, wherein sulfur dioxide and nitric oxides in flue gas are removed by adopting ammonia water, so that ammonia sulfate and ammonia nitrate crystals of which the purity is over 99 percent are obtained. The high-level oxidizing, catalyzing, desulfurizing and denitrating integral device has the advantages that the current desulfurizing and denitrating costs are lowered, the absorbing efficiency is increased, the desulfurizing efficiency is over 99 percent, the denitrating efficiency is over 90 percent, the fertilizer yield is increased, the ammonia sulfate and ammonia nitrate crystals of which the purity is over 99 percent are obtained, waste is changed into treasure, the economic benefit is increased, and the escape amount of ammonia is lowered and is less than 3mg/m<3>.
Description
Technical field
The present invention relates to a kind of flue gas desulfur device, a kind of high grade oxidation catalytic denitration integrated device specifically adopts ammoniacal liquor to remove oxysulfide in the flue gas, and nitrogen oxide belongs to field of Environment Protection.
Background technology
Exhaust emission is day by day remarkable on environment and the human impact that causes, especially more outstanding with a large amount of sulfur dioxide and the nitrogen oxide of coal-fired boiler combustion generation, in the formal startup of the Eleventh Five-Year Plan period total sulfur dioxide control, Chinese Ministry of Environmental Protection and national Minister of the General Administration for Quality Supervision unite " fossil-fuel power plant atmospheric pollutant emission standard " of having issued new revision in September, 2011, discharged nitrous oxides is controlled, present domestic desulfurization, method of denitration mostly is external introduction, flue gas desulfurization, although technology and the device of denitration become better and approaching perfection day by day, but in most countries, especially coal accounts in the country of larger proportion in energy resource structure, its popularize but take a step only difficult, by China, huge investment and high operating cost have made enterprise's back white elephant is difficult to bear.Have the technology and the device that really popularize meaning and await to continue research and development.
Sulfinyl liquid can promote sulfite ion and nitrite ion to be oxidized to sulfate ion and nitrate ion; utilize ozone and sulfinyl synergy; in alkaline hyperoxia solution; transforming oxysulfide and nitrogen oxide is sulfate and nitrate; and separate; do not consume sulfinyl liquid in the whole process; consuming ozone amount only is to be 1/20 of high valence state oxide consumption with ozone oxidation sulfur dioxide and nitric oxide directly; the saving mass energy consumes; simultaneously with desulfurization; two systems of denitration merge into a system; save a large amount of construction funds, remarkable benefit aspect smoke gas treatment.
Summary of the invention
The utility model discloses the high grade oxidation catalytic denitration integrated device.
A kind of high grade oxidation catalytic denitration integrated device comprises absorption tower 6, laminar flow separation device 8, filter 7, ammonia water tank 12, it is characterized in that: be provided with successively clean-up stage, absorber portion, cooling absorber portion, slurry pool in the described absorption tower from top to bottom; Described ammonia water tank 12 links to each other with absorption tower 6, described catalyst storage tank 3 links to each other with absorption tower 6 slurry pools, described inlet flue duct links to each other with the cooling absorber portion on absorption tower 6, and described industrial water pot 10 links to each other with the clean-up stage on absorption tower 6, and 6 tops, described absorption tower link to each other with chimney; Described oxidation fan 4 is connected with absorption tower 6 slurry pools, and described filter 7, laminar flow separation device 8, gravity tank 13, crystallizing and drying system 14, fertilizer packaging outward transport system 15 link to each other successively.
Be provided with circulating pump 5 between described slurry pool of absorption tower and the absorption tower cooling absorber portion; Be provided with circulating pump 9 between slurry pool of absorption tower and the absorber portion; Be provided with circulating pump 11 between industry water pot and the absorption tower clean-up stage.
Described slurry pool of absorption tower slurries leave standstill rear ammonium sulfate and ammonium nitrate mixed serum and catalyst separation by laminar flow separation device standing separation.
Be provided with ozone distribution apparatus 2 in the flue of described absorption tower, distribution apparatus 2 links to each other with the outer ozone generator 1 of flue.
Description of drawings
Fig. 1 is the connection diagram of embodiment of the invention high grade oxidation catalytic denitration integrated device.
The specific embodiment
1. the fundamental reaction principle of desulfurization
SO
2+ H
2O+ catalyst → H
2SO
3+ catalyst → stable complex compound+O
2→ H
2SO
4+ catalyst
Work as SO
2Be transformed into sulfurous acid (H
2SO
3) time, catalyst is combined into it stable comple, and they are continued to be oxidized to sulfuric acid, and then catalyst separates with it.
H
2SO
3+ CAT=catalyst .H
2SO
32CAT.H
2SO
3+ O
2=2CAT+2H
2SO
4
This method is by the above-mentioned reaction of realization, and adding ammoniacal liquor or other antalkalis, makes high-quality ammonium sulfate fertilizer or other industrial chemicals.
H
2SO
4+2NH
4OH=(NH
4)
2SO
4+2H
2O
2. the fundamental reaction principle of denitration
H
2SO
3+ H
2O+catalyst → HNO
2+ catalyst → stable complex compound+O
2→ HNO
3+ catalyst
Nitric oxide (NO) is insoluble in water, needs elder generation oxidized, could be absorbed in the aqueous solution.
2NO+O
3=N
2O
3+ O
2Or NO+O
3=NO
2+ O
2
Work as NO
xBe transformed into nitrous acid (HNO
2) time, organic catalyst is combined into it stable comple, and they are continued to be oxidized to nitric acid.HNO
2+?CAT?=?CAT.HNO
2
2CAT.HNO
2+O
2=2CAT?+2HNO
3
This method is by the above-mentioned reaction of realization, and adding ammoniacal liquor or other antalkalis, makes high-quality ammonium sulfate fertilizer or other industrial chemicals.
HNO
3+NH
4OH=NH
4NO
3+H
2O
A kind of high grade oxidation catalytic denitration integrated device comprises absorption tower 6, laminar flow separation device 8, filter 7, ammonia water tank 12, it is characterized in that: be provided with successively clean-up stage, absorber portion, cooling absorber portion, slurry pool in the described absorption tower from top to bottom; Described ammonia water tank 12 links to each other with absorption tower 6, described catalyst storage tank 3 links to each other with absorption tower 6 slurry pools, described inlet flue duct links to each other with the cooling absorber portion on absorption tower 6, and described industrial water pot 10 links to each other with the clean-up stage on absorption tower 6, and 6 tops, described absorption tower link to each other with chimney; Described oxidation fan 4 is connected with absorption tower 6 slurry pools, and described filter 7, laminar flow separation device 8, gravity tank 13, crystallizing and drying system 14, fertilizer packaging outward transport system 15 link to each other successively.
Be provided with circulating pump 5 between described slurry pool of absorption tower and the absorption tower cooling absorber portion; Be provided with circulating pump 9 between slurry pool of absorption tower and the absorber portion; Be provided with circulating pump 11 between industry water pot and the absorption tower clean-up stage.
Described slurry pool of absorption tower slurries leave standstill rear ammonium sulfate and ammonium nitrate mixed serum and catalyst separation by laminar flow separation device standing separation.
Be provided with ozone distribution apparatus 2 in the flue of described absorption tower, distribution apparatus 2 links to each other with the outer ozone generator 1 of flue.
The utility model is described in further detail with enforcement below in conjunction with accompanying drawing.
Cooperate the technique of the energy-efficient high grade oxidation catalytic desulphurization denitration of energy-efficient high grade oxidation catalytic denitration integrated device, may further comprise the steps:
(1) desulfurization denitrification agent adopts ammoniacal liquor, is stored in the ammonia water tank, squeezes into absorption tower absorber portion circulating line by pump during use;
(2) ozone gas is prepared by ozone generator 1, and adds flue through behind the concentration dilution, and ozone concentration is 200-800mg/Nm after the dilution
3, ozone distribution apparatus 2 is that empty porous plate forms in the 2-6 piece, the parallel placement of porous plate, and reducing increases flue resistance, enters the ozone distribution apparatus in the flue after the process dilution, is evenly distributed in the flue and reacts with nitrogen oxide and sulfur dioxide;
(3) flue adopts bending and variable-diameter structure, increases reaction efficiency;
(4) before flue gas enters ozone-mixing device, need to enter again the absorption tower through after the wet dust removal, this moment flue gas cool-down to 60 ℃, flue gas enters the absorption tower from the middle part, absorption tower, sprays desulphurization denitration in tower;
(5) catalyst is a kind of liquid that contains sulfinyl, is stored in the catalyst storage tank, regularly squeezes into the absorption tower by pump, and catalyst does not participate in reaction, only plays the effect of catalytic oxidation;
(6) flue gas that enters the absorption tower at first passes through, the reaction of ground floor slurries spray, reduce the moisture in the flue-gas temperature while evaporative removal part slurries, then entering second layer spray-absorption section further absorbs, enter clean-up stage in the tower through the purifying smoke after twice absorption, spray away the aerosol of escaping through the 3rd road, remove the most of moisture of carrying secretly through demister again, the liquid gas volume ratio of flue gas and spray liquid is controlled at 3～5 ﹕ 1, absorbed the spray liquid of sulfureous in flue gas oxide and nitrogen oxide for containing ammonium sulfate, the mixed solution of sulfurous acid ammonia ammonium nitrate, absorb the slurry pool that spray liquid falls into the bottom, absorption tower, purify spray liquid and enter industrial water pot;
(7) pH value 5～8 in the absorption tower, liquid catalyst and water ratio are more than 50%;
(8) blast air by oxidation fan at the bottom of the tower, sulfite ion and nitrite ion with tower prime cement liquid pool under the catalytic action of catalyst are oxidized to respectively sulfate ion and nitrate ion;
(9) fall into the mixed solution of slurry pool, through carrying out standing separation by being pumped into the laminar flow separation device after the filter filtration, catalyst after the separation is got back to the absorption tower, ammonium sulfate and ammonium nitrate mixed solution enter gravity tank, enter the crystallizing and drying system by gravity tank, obtain ammonium sulfate and ammonium nitrate crystals, final composite fertilizer product, through fertilizer packaging outward transport system, make the finished product fertilizer selling.
Adopt ammoniacal liquor as absorbent, whole system produces without waste water, waste gas, generates simultaneously ammonium sulfate and ammonium nitrate compound fertilizer.
The result: by technique of the present invention, sulfur dioxide in tail gas content is less than 50mg/ Nm
3, nitrogen dioxide content is less than 50mg/ Nm
3, the content of ammonia is less than 3mg/ Nm in the tail gas
3Desulfurizer total pressure drop 800Pa, ammonium sulfate and the ammonium nitrate fertilizer of by-product 99.5% purity, and steam consumption (drier vapour) is 100kg/t fertilizer, power consumption adds the SCR denitration with existing ammonia process and compares reduction desulphurization denitration operating cost 30% less than 300KW/t fertilizer, and the desulfurization absorption efficiency mentions 99%, the denitration absorption efficiency mentions 86.5%, and amount of ammonia slip is down to 3mg/m
3Below.
Claims (4)
1. high grade oxidation catalytic denitration integrated device, comprise absorption tower (6),, laminar flow separation device (8), filter (7), ammonia water tank (12), it is characterized in that: be provided with successively clean-up stage, absorber portion, cooling absorber portion, slurry pool in the described absorption tower from top to bottom; Described ammonia water tank (12) links to each other with absorption tower (6), described catalyst storage tank (3) links to each other with absorption tower (6) slurry pool, described inlet flue duct links to each other with the cooling absorber portion of absorption tower (6), described industrial water pot (10) links to each other with the clean-up stage of absorption tower (6), and top, described absorption tower (6) links to each other with chimney; Described oxidation fan (4) is connected with absorption tower (6) slurry pool, and described filter (7), laminar flow separation device (8), gravity tank (13), crystallizing and drying system (14), fertilizer packaging outward transport system (15) link to each other successively.
2. high grade oxidation catalytic denitration integrated device according to claim 1 is characterized in that: be provided with circulating pump (5) between described slurry pool of absorption tower and the absorption tower cooling absorber portion; Be provided with circulating pump (9) between slurry pool of absorption tower and the absorber portion; Be provided with circulating pump (11) between industry water pot and the absorption tower clean-up stage.
3. high grade oxidation catalytic denitration integrated device according to claim 1 and 2 is characterized in that: described slurry pool of absorption tower slurries leave standstill rear ammonium sulfate and ammonium nitrate mixed serum and catalyst separation by laminar flow separation device standing separation.
4. high grade oxidation catalytic denitration integrated device according to claim 1 and 2 is characterized in that: be provided with ozone distribution apparatus (2) in the flue of described absorption tower, distribution apparatus (2) links to each other with the outer ozone generator (1) of flue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208838 CN202683045U (en) | 2012-05-10 | 2012-05-10 | High-level oxidizing, catalyzing, desulfurizing and denitrating integral device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208838 CN202683045U (en) | 2012-05-10 | 2012-05-10 | High-level oxidizing, catalyzing, desulfurizing and denitrating integral device |
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| Publication Number | Publication Date |
|---|---|
| CN202683045U true CN202683045U (en) | 2013-01-23 |
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ID=47538722
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|---|---|---|---|
| CN 201220208838 Expired - Fee Related CN202683045U (en) | 2012-05-10 | 2012-05-10 | High-level oxidizing, catalyzing, desulfurizing and denitrating integral device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658021A (en) * | 2012-05-10 | 2012-09-12 | 朱军 | Advanced technology and device for integrating oxidation catalysis, desulfurization and denitrification |
| WO2015155208A1 (en) * | 2014-04-09 | 2015-10-15 | Tischmacher Heinz | Device and method for producing fertilizer from the exhaust gases of a production system |
| CN111569631A (en) * | 2020-06-03 | 2020-08-25 | 江苏优拿大环保科技有限公司 | Resource treatment method for desulfurization and denitrification and special device |
| CN115536124A (en) * | 2022-08-16 | 2022-12-30 | 昆明理工大学 | Method for improving quality and efficiency of ammonium sulfate product produced by ammonia-acid flue gas desulfurization wastewater |
-
2012
- 2012-05-10 CN CN 201220208838 patent/CN202683045U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658021A (en) * | 2012-05-10 | 2012-09-12 | 朱军 | Advanced technology and device for integrating oxidation catalysis, desulfurization and denitrification |
| WO2015155208A1 (en) * | 2014-04-09 | 2015-10-15 | Tischmacher Heinz | Device and method for producing fertilizer from the exhaust gases of a production system |
| EP3129124B1 (en) * | 2014-04-09 | 2020-04-29 | Tischmacher, Heinz | Device and method for producing fertilizer from the exhaust gases of a production system |
| CN111569631A (en) * | 2020-06-03 | 2020-08-25 | 江苏优拿大环保科技有限公司 | Resource treatment method for desulfurization and denitrification and special device |
| CN111569631B (en) * | 2020-06-03 | 2022-05-24 | 江苏优拿大环保科技有限公司 | Resource treatment method for desulfurization and denitrification and special device |
| CN115536124A (en) * | 2022-08-16 | 2022-12-30 | 昆明理工大学 | Method for improving quality and efficiency of ammonium sulfate product produced by ammonia-acid flue gas desulfurization wastewater |
| CN115536124B (en) * | 2022-08-16 | 2024-01-09 | 昆明理工大学 | Quality and efficiency improving method for ammonium sulfate product produced by using flue gas desulfurization wastewater by adopting ammonia-acid method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140510 |