CN101496993B - Method and device for processing malodorous gas by active bamboo charcoal-H2O2 complex phase catalytic oxidation - Google Patents
Method and device for processing malodorous gas by active bamboo charcoal-H2O2 complex phase catalytic oxidation Download PDFInfo
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- CN101496993B CN101496993B CN2009100449791A CN200910044979A CN101496993B CN 101496993 B CN101496993 B CN 101496993B CN 2009100449791 A CN2009100449791 A CN 2009100449791A CN 200910044979 A CN200910044979 A CN 200910044979A CN 101496993 B CN101496993 B CN 101496993B
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Abstract
The invention relates to foul gas treatment technology and discloses a method and a device for treating foul gas through diphase catalytic oxidation of an activated bamboo charcoal-H2O2. The foul gas passes through a diphase bamboo charcoal catalyst and is adsorbed to remove foul substance molecules; an aqueous hydrogen peroxide solution is adopted to spray the diphase bamboo charcoal catalyst to decompose the adsorbed foul substance molecules so as to achieve cyclic utilization of the diphase bamboo charcoal catalyst; after water-gas separation by a demister, the gas is introduced to an alkali spraying tower; and an alkaline solution is sprayed to neutralize acidic substances of the gas; and the gas is discharged. The method for treating the foul gas has high treating efficiency and is in particular suitable for treating the foul gas with large wind volume.
Description
Technical field
The present invention relates to the foul gas processing technology field, be specifically related to a kind of apparatus and method of handling foul gas.
Background technology
Odorant pollutant odor pollutants refers to that all stimulate olfactory organ to cause the gaseous matter that people are unhappy and damage living environment.Usually people are stinks to the understanding of foul gas, as the taste of generations such as sewage, mud, rubbish, volatilization.Foul gas can both produce in Human's production, life process except above-mentioned substance can produce in fact.Main Ingredients and Appearance is except hydrogen sulfide (H
2S), ammonia (NH
3), methyl mercaptan, methyl sulfide, methyl disulfide, carbon disulfide, styrene, trimethylamine have thousands of kinds, up to ten thousand kinds outward.What the main standard of the technology of domestic and international at present processing foul gas was right is above-mentioned eight kinds of compositions.
As Chinese patent application number: 02244734 has put down in writing a kind of composite governance waste gas comprehensive utilization device, it sprays diffluence room, recovery bin and circulatory pool by diffuser, particulate and forms, moisture film clarifier and filter screen moisture film device are set in the diffuser, precipitation heat radiation pond and circulatory pool are installed in the below of diffuser, and circulatory pool is installed pump outward.In the place ahead of filter screen moisture film device is that particulate sprays diffluence room, and moisture trap is installed in the upper end by diffluence room; The grouping isocon is installed in the lower end, and the isocon below is pH value control pond and recovery bin, and the outer wall in control pond is installed storing water level control pond.Composite governance waste gas comprehensive utilization device makes up moisture film clarifier, particulate injection, moisture trap, by water smoke and gas haptoreaction, handles waste gas.This method aqueous vapor weak point time of contact, water smoke form the power consumption height, the processing means are single, are fit to the exhaust-gas treatment of good water solubility.To other treatment of waste gas, weak effect.
Chinese patent application number: 02115277 has put down in writing a kind of chemical industry toxic gas pollution control recovery method and system and device, and this improvement recovery method adopts following level Four to administer step: (1) at first adopts side exhausting mode to aspirate toxic gas; (2) the employing washing oil absorbs the toluene in the above-mentioned chemical industry toxic gas, and recycles; (3) absorb peculiar smell by carbon granules and adopt 200 ℃ to boil, dry, utilize again; (4) adopt wet method aqueous solution circularly purifying to absorb at last.This method is handled the high concentration 3 benzene waste gas certain effect, the low concentration 3 benzene waste gas is handled energy consumption height (needing a large amount of steams to resolve triphen, regeneration activity carbon), and cost of investment is big, the technological operation complexity, it is excessive to form supersaturation waste gas easily, contaminated environment.
Chinese patent application number: 96231906 have put down in writing a kind of big air quantity waste gas pollution control and treatment adsorption tower, what it adopted is designed to: have a jar shape housing, the housing inner bottom part is equipped with the import filter course, control valve is equipped with in case top and bottom, in the middle of in the housing one group of a plurality of activated carbon fiber adsorption column is housed, between each adsorption column termination and and inner walls between dividing plate is arranged.This method only is fit to the dryness treatment of waste gas, and will regularly replace the satisfied activated carbon fiber of absorption, and adsorption cycle is short, the replacement cost height.As the regeneration activity carbon fiber, need a large amount of steam of consumption, operating cost enterprise can not bear.
Chinese patent application number: 03232297 has put down in writing a kind of foul gas controlling device, include air inlet and gas outlet ground insulation shell, high-voltage pulse power source, in insulation shell corona discharge electrode and earthing pole, in air inlet end inboard, described insulation shell ground gas distributor is set.This utility model utilizes the plasma active particle that foul gas is carried out oxidation, degradation reaction, makes foul gas be converted into the odorless innocuous substance, and is better to the foul gas regulation effect of low concentration atm number.This technology has certain chain rupture, oxidation effectiveness to the strand of low electron-volt constant, also only is suitable for the exhaust-gas treatment of little tolerance, low concentration.But this device operation power consumption is higher, and cost of investment is big, and moisture content Gao Shiyi produces the high voltage short circuit fault in the gas, and operation stability is lower.
Chinese patent application number: 98802425.X has announced a kind of ozone deodorizer.It has the ozone deodorization functions, though ozone can oxidation foul gas molecule, but under usual conditions, the foul smell molecule is not very fast by the reaction speed of ozone oxidation, will cause or handle smelly narrow-minded like this, deodorizing effect is undesirable, or needs to consume a large amount of ozone and the material and the volume of aggrandizement apparatus.
Chinese patent application number: 200510041341.4, a kind of odor removal that adopts water spray and biofiltration is provided, its major defect is that the biochemical reaction process of biofiltration process needs the relatively long time of staying, thereby need very big floor space, the vital operating parameters such as homogeneity, gas permeability, humidity, temperature and pH value of filtrate also are difficult to control simultaneously, also can produce and ooze drop liquid, foul gas complicated to some and high concentration is handled also limitation.
Summary of the invention
The technical problem to be solved in the present invention is to overcome defective of the prior art, and a kind of active bamboo carbon-H is provided
2O
2The method and apparatus of complex phase catalytic oxidation treatment foul gas.
For solving the problems of the technologies described above, the invention provides a kind of active bamboo carbon-H
2O
2The method of complex phase catalytic oxidation treatment foul gas comprises the following steps:
Foul gas is passed through complex phase bamboo C catalyst, remove the odorant molecule with absorption, the aqueous solution spray complex phase bamboo C catalyst that adopts hydrogen peroxide is with the odorant molecule of minute desorption and reach the recycling of complex phase bamboo C catalyst, after the separation of demister aqueous vapor, again gas is fed in the alkali spray column spray aqueous slkali with in and acidic materials in the gas, then discharge.
Described complex phase bamboo C catalyst, for through pH2-5, percentage by weight is the dry bamboo carbon in sulfate solution dipping back of the transition metal of 0.1-1%.Above-mentioned transition metal comprises iron, manganese, cobalt or nickel.The sulfate of transition metal can chosen from Fe, one or more the mixing in the sulfate of manganese, cobalt or nickel, as ferric sulfate, ferrous sulfate etc.
Above-mentioned complex phase bamboo C catalyst is by Fe
2+, Fe
3+On bamboo carbon, drying (as 100 ℃-400 ℃) is made Deng the sulfate radical solution impregnation of transition metal ions, and it can the adsorbs malodorous gas molecule, can adsorb H again
2O
2, so complex phase bamboo C catalyst surface or the following reaction of inner generation:
Hydrogen peroxide is at Fe
2+, Fe
3+Form down Deng the transition metal ions effect
-The OH free radical,
-HO
2Free radical,
-OH,
-HO
2Free radical again with the foul gas molecular reaction, foul gas be converted into the material of free from extraneous odour or low peculiar smell and be removed.
Inject hydrogen peroxide from the circulated sprinkling pump discharge, can in the extremely short time, be sprayed onto uniformly on the complex phase bamboo C catalyst, complex phase bamboo C catalyst adsorbs malodorous gas, hydrogen peroxide are on complex phase bamboo C catalyst surface or inner, produce the OH free radical, OH free radical and odorant reaction, the two combination can be given full play to its usefulness, improves the reaction efficiency of foul gas and OH free radical.Improve the time of staying of OH free radical on complex phase bamboo C catalyst, and reaction time, improve treatment effect.
Preferable, the pH value of aqueous solution of above-mentioned hydrogen peroxide is 1-3.The pH value of aqueous solution of hydrogen peroxide can be regulated with aqueous sulfuric acid.
The foul gas that the present invention is fit to handle comprises nearly all organic foul gas, as H
2S, trimethylamine, ammonia (NH
3), methyl mercaptan, methyl sulfide, methyl disulfide, carbon disulfide, styrene etc., but it is relatively poor to handle effects such as ester class, acetonitrile.
Preferable, above-mentioned foul gas is the process preliminary treatment before passing through complex phase bamboo C catalyst, as dust removal process to the dust-laden organic exhaust gas, before handling organic exhaust gas, dust is removed earlier by the dust arrester of routine, remove the organic exhaust gas of dust, handle with hydrogen peroxide, complex phase bamboo C catalyst, treatment effect improves greatly again.Pharmaceutical quantities with same quantity is handled with a kind of waste gas, and the waste gas of removing dust lacks the treatment effeciency height than the waste gas dosage of not removing dust.To the water treatment that removes of the high organic exhaust gas of moisture content, before processing, adopt conventional de-watering apparatus for another example, moisture content is reduced as much as possible, reduce the liquid phase turbidity in the soup, improve the result of use of soup.
At above-mentioned active bamboo carbon-H
2O
2On the basis of the method for complex phase catalytic oxidation treatment foul gas, the invention also discloses a kind of active bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas, comprise the exhaust gas entrance 31 that links to each other through pipeline successively, preprocessor 32, wet type bamboo carbon complex phase catalytic oxidation bed 35, alkali spray column 18, blower fan 8 and aiutage 24, wherein, wet type bamboo carbon complex phase catalytic oxidation bed comprises housing 16, demister 1, complex phase bamboo C catalyst layer, circulated sprinkling pump 11 and storage tank 12, housing 16 is provided with exhaust gas entrance 23 and clean gas outlet 15, between housing 16 inherent exhaust gas entrances 23 and the clean gas outlet 15, be arranged with demister 1 and one or more layers complex phase bamboo C catalyst layer, wherein demister 1 is near clean gas outlet 15, and circulated sprinkling pump 11 links to each other with the delivery port of storage tank 12.
Described preprocessor can be decided according to different processing working condition requirement, treatment media.Dust is more in the waste gas, and preprocessor can adopt dust arrester, as aerosol deduster, spray deduster, sack cleaner, cyclone dust collectors, electric cleaner, rotating stream tray deduster etc.Moisture content is more in the waste gas, and preprocessor can adopt and collude type dehydrater, the centrifugal dehydrater of eddy flow, silk screen dehydrater, electric demist dehydrater etc.Waste gas medium concentration height, composition complexity, medium molecule chain are firm, and preprocessor can adopt technology such as pickling, alkali cleaning.The purpose that preprocessor is set in the system is to remove the active bamboo carbon-H of influence
2O
2The material of complex phase catalytic oxidation treatment efficient improves system handles efficient.
Described alkali spray column is a chemical industry unit commonly used, preferred vertical structure, after being connected on wet type bamboo carbon complex phase catalytic oxidation bed, to wet type bamboo carbon complex phase catalytic oxidation bed handle faintly acid gas that the back produces carry out in and chemical reaction, make the Purge gas of discharging be neutral, satisfy the requirement of national specified discharge standard.Aqueous slkali (being alkaline solution) can be a NaOH solution, is 30% NaOH solution as weight percent concentration, and also available NaOH solid piece adds water and uses from the concentration that is made into 30%.
The storage tank 12 of described wet type bamboo carbon complex phase catalytic oxidation bed is positioned at housing 16 bottoms, and storage tank is used for the splendid attire aqueous sulfuric acid.
Complex phase bamboo C catalyst layer comprises grid 4, complex phase bamboo C catalyst 2 and shower 29, shower is provided with nozzle 5, complex phase bamboo C catalyst 2 is fixed on the grid 8, shower 29 is positioned at the top of complex phase bamboo C catalyst 2, and shower 29 links to each other with the delivery port of circulated sprinkling pump 11 through connecting water pipe.
Described shower 29 is apart from complex phase bamboo C catalyst 2 about 600-800 millimeters, and every layer of complex phase bamboo C catalyst layer is equipped with 3-5 and props up shower, and 2-5 nozzle is housed on each shower.
Described wet type bamboo carbon complex phase catalytic oxidation bed can be vertical structure, storage tank 12 and exhaust gas entrance 23 are positioned at housing bottom, exhaust gas entrance 23 can be positioned on the storage tank 12, it on the exhaust gas entrance 23 one or more layers complex phase bamboo C catalyst layer, on the top layer complex phase bamboo C catalyst layer is demister 1, and clean gas outlet 15 is positioned at case top.The housing of wet type bamboo carbon complex phase catalytic oxidation bed is made by acidproof, alkaline-resisting, sludge proof material, as unsaturated ethylene agent mylar add glass fiber through winding and material (fiberglass).
Described wet type bamboo carbon complex phase catalytic oxidation bed also can be furnished with independently medicine system, and medicine system is by hydrogen peroxide solution storage tank 26, hydrogen peroxide conveying and metering pump 25, H
2SO
4Solution storage trough 28, H
2SO
4Conveying and metering pump 27 and carrier pipe are formed, and hydrogen peroxide solution storage tank 26 links to each other with hydrogen peroxide conveying and metering pump 25 through carrier pipe, again through carrier pipe with to be located at the circulated sprinkling pump continuous with the dosing mouth 10 that is connected on the water pipe between the shower, H
2SO
4Solution storage trough 28 is through carrier pipe and H
2SO
4Conveying and metering pump 27 links to each other, again through carrier pipe and the H that is located on the storage tank 12
2SO
4Dosing mouth 36 links to each other.
The demister of described wet type bamboo carbon complex phase catalytic oxidation bed can be hook-shaped water fender, also available mesh mist eliminator, the centrifugal demister of eddy flow etc.
In the complex phase bamboo C catalyst layer of described wet type bamboo carbon complex phase catalytic oxidation bed, grid is made with acidproof, alkaline-resisting, sludge proof material, and the major function of grid is a carrying complex phase bamboo C catalyst.Preferable, also be provided with silk screen 3 on the grid 4, the major function of silk screen is to prevent that granule complex phase bamboo C catalyst from falling in the storage tank.
In the above-mentioned complex phase bamboo C catalyst layer, the stacking of complex phase bamboo C catalyst highly is 1m-3m, and is preferable, and complex phase bamboo C catalyst is fixed in the grid in the mode of closely erecting dress, adopts the mode of perpendicular dress, can reduce vapour lock.Complex phase bamboo C catalyst also can adopt the mode of huddling to load.
The storage tank 12 of described wet type bamboo carbon complex phase catalytic oxidation bed is an air water separation type storage tank 12, its major function be storage contain aqueous sulfuric acid, to circulated sprinkling pump feed flow, collect the oxidation liquid that spray, repeated use.Storage tank top is provided with H
2SO
4Dosing mouth 36, shower water refluxing opening 21, water supplement port 20 also can be provided with standby mouthful.
Preferable, solid-liquid separator (filter) is housed in the storage tank, but the filter of preferred on-line cleaning, particle in waste gas enters wet type bamboo carbon complex phase catalytic oxidation bed storage tank with gas, before entering the circulated sprinkling pump with current, stopped, guaranteed the safe in utilization of circulated sprinkling pump by solid-liquid separator, prevent the obstruction of nozzle, realized the continuous running of system.
Preferable, storage tank also can be provided with liquid level detection device such as liquid level gauge 22 and pH checkout gear 19 as pH meter.Preferably, storage tank is provided with automatic liquid supply control system and pH automatic control system.
Preferable, the storage tank side also is provided with tubular type liquid level gauge 13, makes an inspection tour to observe for operating personnel and uses.
Preferable, the storage tank bottom also is provided with outage 14, but supply tank cleans the need of discharge opeing.
The circulated sprinkling pump of described wet type bamboo carbon complex phase catalytic oxidation bed is can acidproof, alkaline-resisting, resistance to oxidation material.The preferred submerged pump of circulated sprinkling pump, the pump housing of submerged pump go deep into the following water level place of storage tank, and the delivery port of pump is connected water pipe and connects with the hull outside circulated sprinkling.Adopt submerged pump can solve the problem that the pump housing leaks.
Also can be provided with online shower on the housing of described wet type bamboo carbon complex phase catalytic oxidation bed and take out assemblies such as hole, maintenance peephole.Each jet pipe can be separately packed into or is taken out from online jet pipe load hole.The maintenance peephole can supply maintenance repair and observation.
Active bamboo carbon-H of the present invention
2O
2The device of complex phase catalytic oxidation treatment foul gas can be provided with many groups bamboo carbon complex phase catalytic oxidation bed in parallel.Employing design in parallel can realize alternately regeneration through transfer valve 34, as two groups of parallel connections, then can a usefulness one regenerate; Three groups of parallel connections, but then dual-purpose one regeneration; Four groups of parallel connections then can one regeneration of three usefulness.
Active bamboo carbon-H of the present invention
2O
2The method and the device of complex phase catalytic oxidation treatment foul gas, principle is to have utilized on the one hand that bamboo carbon mechanical strength is good, the characteristics of hollow, and it is used for gas treatment, and its vapour lock is little, difficult fragmentation in service is than traditional active carbon life-span long (service life was greater than 3 years); Second aspect is by the complex phase bamboo C catalyst absorption odorant molecule of specially treated, as acid H
2O
2During spray, this catalyst adsorbs H again
2O
2, at catalyst surface or inner hydrogen peroxide at Fe
2+, Fe
3+Deng effect form down OH free radical, HO
2Free radical, OH, HO
2Free radical again with the foul gas molecular reaction, foul gas be converted into the material of free from extraneous odour or low peculiar smell and be removed, concrete reaction equation is as follows:
H
2O
2+Fe
++→(FeOH)
2++
·OH
·OH+H
2O
2→H
2O+
·HO
2
Fe
3++H
2O
2→Fe
2++
·HO
2+H
+
The odorant molecule+
OH → be degraded
Foul gas processing method hydrogen peroxide (H of the present invention
2O
2) the utilization rate height, the long service life of complex phase bamboo C catalyst, treatment effeciency is high, handles air quantity and can reach 200000m
3/ h, the deodorizing rate can reach 99%.Especially be fit to the processing of big air quantity foul gas.
Description of drawings
Fig. 1: active bamboo carbon-H
2O
2The device schematic diagram of complex phase catalytic oxidation treatment foul gas
Fig. 2: the structural representation of wet type bamboo carbon complex phase catalytic oxidation bed
Reference numeral:
1. demister 2. complex phase bamboo carbon catalyst 3. silk screen 4. grid 5. nozzle 6.NaOH measuring pump 7.NaOH pharmacy slot 8. blower fans 9. are mended circulation spray pump 12. storage tank 13. tubular type liquid level gauge 14. blowoff valve 15. clean gas outlet 16. complex phase catalytic oxidation bed housing 17. maintenance peephole 18. alkali spray column 19.pH meter 20. water supplement port 21. refluxing opening 22. liquid level gauge 23. exhaust gas entrance 24. aiutage 25.H under sour magnetic valve 10. shower dosing mouth 11. liquid2O
2Conveying and metering pump 26.H
2O
2Solution storage trough 27.H
2SO
4Conveying and metering pump 28.H
2SO
4Solution storage trough 29. showers 30. shower patchholes 31. exhaust gas entrances 32. preprocessors 33. pipelines 34. transfer valves 35. wet type bamboo carbon complex phase catalytic oxidation beds
The specific embodiment
Below enumerate specific embodiment with further elaboration the present invention, should be understood that embodiment is used to limit protection scope of the present invention.
The preparation of embodiment 1 complex phase bamboo C catalyst
Raw material: hollow circular cylinder bamboo, diameter are Φ 30mm-Φ 50mm, and length is 30mm-50mm
Method: prepare complex phase bamboo C catalyst respectively as follows
1. bamboo carbon flooded 2 hours with the ferrous sulfate aqueous solution of the percentage by weight 0.8% of pH2, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
2. bamboo carbon flooded 2 hours with the ferric sulfate aqueous solution of the percentage by weight 0.1% of pH3, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
3. bamboo carbon flooded 2 hours with the ferrous sulfate aqueous solution of the percentage by weight 1% of pH5, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
4. bamboo carbon flooded 2 hours with the cobalt sulfate solution of the percentage by weight 0.8% of pH2, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
5. bamboo carbon flooded 2 hours with the nickel sulfate solution of the percentage by weight 0.8% of pH2, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
6. bamboo carbon flooded 2 hours with the manganese sulfate solution of the percentage by weight 0.8% of pH2, pulled out and dried, and dried then to make under 100 ~ 300 ℃ of temperature.
Active as shown in Figure 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas comprises successively wet type bamboo carbon complex phase catalytic oxidation bed 35, alkali spray column 18, blower fan 8 and the aiutage 24 of the exhaust gas entrance 31 that links to each other through pipeline, preprocessor 32, two parallel connections.
Preprocessor 32 is the aerosol deduster.Alkali spray column 18 is a vertical structure, after being connected on wet type bamboo carbon complex phase catalytic oxidation bed, to wet type bamboo carbon complex phase catalytic oxidation bed handle faintly acid gas that the back produces carry out in and chemical reaction, make the Purge gas of discharging be neutral, satisfy the requirement of national specified discharge standard.The neutralizer concentration that is weight percentage is 30% the NaOH aqueous solution, and also available NaOH solid piece adds water and uses from the concentration that is made into 30%.Alkali spray column 18 is furnished with medicine system, and medicine system is made up of NaOH pharmacy slot 7, NaOH measuring pump 6 and carrier pipe, and NaOH pharmacy slot 7 links to each other with NaOH measuring pump 6 through carrier pipe, links to each other with alkali spray column bottom storage tank dosing mouth by the road again.
The structure of wet type bamboo carbon complex phase catalytic oxidation bed 35 as shown in Figure 2, be vertical structure, comprise housing 16, demister 1, complex phase bamboo C catalyst layer, circulated sprinkling pump 11 and storage tank 12, the bottom of wet type bamboo carbon complex phase catalytic oxidation bed is the rectangle air water separation type storage tank 12 of a built-in open ports, outside outstanding oxidation bed housing 16, dress aqueous sulfuric acid in the storage tank, its major function be storage contain aqueous sulfuric acid, to circulated sprinkling pump feed flow, collect the oxidation liquid that spray, repeated use.But the solid-liquid separator of on-line cleaning is housed in the storage tank, particle in waste gas enters wet type bamboo carbon complex phase catalytic oxidation bed storage tank with gas, before entering the circulated sprinkling pump with current, stopped by solid-liquid separator, guaranteed the safe in utilization of circulated sprinkling pump, prevent the obstruction of nozzle, realized the continuous running of system.Be equipped with the filtration silk screen inside and outside the solid-liquid separator, interior silk screen is replaceable, can take out from the storage tank access hole, and the flushing back is reused.The liquid level gauge 22 (with the interlock of fluid infusion magnetic valve) of band signal output is equipped with on storage tank top, and liquid level gauge is established upper and lower spacing.When water level is lower than lower limit, the fluid infusion magnetic valve is opened, to the storage tank moisturizing.When the supreme water level of moisturizing, the moisturizing closed electromagnetic valve, moisturizing stops.Anti-corrosion submerged pump 11 is equipped with on storage tank top, and this pump can acidproof, alkaline-resisting, resistance to oxidation.The pump housing gos deep into the following water level place of storage tank, and the delivery port of pump is connected with outside spray header.Adopt submerged pump to solve the problem that the pump housing leaks.PH detection probe 19 is equipped with on storage tank top, and this probe links to each other with pH instrument on the electric cabinet panel, and pH numerical value can react on the pH instrument; The pH instrument is established upper and lower limit, (on be limited to 3.5, be limited to 1 down).When pH value＞3, mend sour magnetic valve 9 and open H
2SO
4Measuring pump is to the storage tank feed flow; When pH value＜1, mend sour magnetic valve 9 and close H
2SO
4Measuring pump stops feed flow.H is equipped with on storage tank top
2SO
4Dosing mouth 36, shower water refluxing opening 21, water supplement port 20 and standby mouth.Tubular type liquid level gauge 13 is equipped with in the storage tank side, can follow for operating personnel and show observation usefulness.Outage 14 is equipped with in the storage tank bottom, but supply tank cleans the need of discharge opeing.
The storage tank top of wet type bamboo carbon complex phase catalytic oxidation bed is waste gas inlet port 23.
Wet type bamboo carbon complex phase catalytic oxidation bed middle part is complex phase bamboo C catalyst oxide layer, two layers of layout up and down.Every layer of complex phase bamboo C catalyst oxide layer is made up of grid 4, silk screen 3 and complex phase bamboo C catalyst 2.Shower is loaded on complex phase bamboo C catalyst top, apart from the 600mm-800mm place, is same horizontal plane.3-5 showers that do not wait 29 are housed on each layer complex phase bamboo C catalyst layer, 2-5 nozzle 5 is housed on each jet pipe.Each jet pipe can be separately packed into or is taken out from online jet pipe load hole 30.
Grid 4 usefulness are acidproof, alkaline-resisting, the materials processing of sludge proof unsaturated polyester resin forms, and thickness is 38mm-40mm.The aperture is 25mm * 25mm, 38mm * 38mm, its load-bearing 1000kg/m2.Its major function is a carrying complex phase bamboo C catalyst.
Silk screen 3 usefulness PVC materials are made, and the aperture is 10mm * 10mm-20mm * 20mm, and one deck silk screen is as for grid top, and major function is to prevent that granule complex phase bamboo C catalyst from falling in the storage tank.
Complex phase bamboo C catalyst 2 is the complex phase bamboo C catalyst that the method for employing 1 among the embodiment 1 makes.Complex phase bamboo C catalyst places on the PVC silk screen, stacks height 1m-3m, and complex phase bamboo C catalyst is fixed in the grid in the mode of closely erecting dress, adopts the mode of perpendicular dress, can reduce vapour lock.
Nozzle 5 is contained on the shower 29, and nozzle is not for stopping up spirality, external screw thread formula.Need only during installation nozzle is screwed on the jet pipe.
Maintenance peephole 17 is contained on the housing between complex phase bamboo C catalyst and the jet pipe, is convenient to maintenance repair and observation.
Demister 1 is equipped with on wet type bamboo carbon complex phase catalytic oxidation bed top, and clean gas outlet 15 is positioned on the demister.Demister is contained in the top of second layer shower, and the demister form is hook-shaped water fender, also available mesh mist eliminator, the centrifugal demister of eddy flow etc.
Wet type bamboo carbon complex phase catalytic oxidation bed hull outside is equipped with spray and connects water pipe (material: PVC, PP), flowmeter, dosing mouth 10.Spray connects one in water pipe and connects shower 29, and the other end connects the delivery port of circulated sprinkling pump 11.
Wet type bamboo carbon complex phase catalytic oxidation bed is furnished with two cover chemicals dosing plants, and a cover is H
2O
2Chemicals dosing plant, a cover is H
2SO
4Chemicals dosing plant.Every cover chemicals dosing plant is formed by drug storage groove, measuring pump, carrier pipe.Wherein, hydrogen peroxide solution storage tank 26 links to each other with hydrogen peroxide conveying and metering pump 25 through carrier pipe, links to each other H through carrier pipe with the dosing mouth 10 that is connected on the water pipe that is connected circulated sprinkling pump and shower again
2SO
4Solution storage trough 28 is through carrier pipe and H
2SO
4Conveying and metering pump 27 links to each other, again through carrier pipe and the H that is located on the storage tank 12
2SO
4Dosing mouth 36 links to each other.Flowmeter is with PVC transparent spinner flowmeter, can be corrosion-resistant, be convenient to observe.
H
28O
4Chemicals dosing plant is controlled by pH meter, when the pH value of wet type bamboo carbon complex phase catalytic oxidation bed storage tank＞3, and H
2SO
4The starting of dosing measuring pump is with H
2SO
4Medicament is sent into wet type bamboo carbon complex phase catalytic oxidation bed storage tank, ends until pH value＜1.H
2SO
4The H that injects in the groove
2SO
4Concentration is 30%.
H
2O
2The H that injects in the groove
2O
2Concentration is 30%, sets quantitatively earlier when its dosing method is to add.System installs, and sets one according to the waste gas concentration of medium during debugging and adds dose, measuring pump is transferred to the output quantity of setting.Added dose according to treatment effeciency adjust during debugging.H
2O
2Measuring pump is with H
2O
2Medicament is directly sent into spray connection water pipe medicament and is added inlet.
Active bamboo carbon-H of the present invention
2O
2The device of complex phase catalytic oxidation treatment foul gas is provided with the bamboo carbon complex phase catalytic oxidation bed of two groups of parallel connections, can realize alternately regeneration through transfer valve 34, regenerates as usefulness one.
Embodiment 3 foul gas are handled
Certain spices company is in producing the particle fragrance product, and the foul gas of generation adopts active bamboo carbon-H of embodiment 2
2O
2The device of complex phase catalytic oxidation treatment foul gas is handled.Waste gas enters through exhaust gas entrance 31, through preprocessor 32, enter wet type bamboo carbon complex phase catalytic oxidation bed 35 by exhaust gas entrance 23, in wet type bamboo carbon complex phase catalytic oxidation bed, at first by complex phase bamboo C catalyst 2, remove the smell substance molecule with absorption, the aqueous solution of hydrogen peroxide sprays on the complex phase bamboo C catalyst 2 with the smell substance molecule of minute desorption and reaches the recycling of complex phase bamboo C catalyst through nozzle 5, after gas goes upward to the separation of demister 1 aqueous vapor, discharge by clean gas outlet 15, through pipeline feed spray aqueous slkali in the alkali spray column 18 with in and acidic materials in the gas, then discharge.Exhaust-gas treatment amount: 15000m
3/ h, the smelly degree of original waste gas: 160000 dimensionless.Through above-mentioned active bamboo carbon-H
2O
2After the technical finesse of complex phase catalytic oxidation, purifying the smelly degree in back is 1000 dimensionless.Reached 15m aiutage discharge capacity＜2000 dimensionless indexs of GB1455496 regulation, get good effect.
Embodiment 4 foul gas are handled
Certain leather company leather sewage station waste gas, active bamboo carbon-H of employing embodiment 2
2O
2The device of complex phase catalytic oxidation treatment foul gas is handled.Waste gas enters through exhaust gas entrance 31, through preprocessor 32, enter wet type bamboo carbon complex phase catalytic oxidation bed 35 by exhaust gas entrance 23, in wet type bamboo carbon complex phase catalytic oxidation bed, at first by complex phase bamboo C catalyst 2, remove the smell substance molecule with absorption, the aqueous solution of hydrogen peroxide sprays on the complex phase bamboo C catalyst 2 with the smell substance molecule of minute desorption and reaches the recycling of complex phase bamboo C catalyst through nozzle 5, after gas goes upward to the separation of demister 1 aqueous vapor, discharge by clean gas outlet 15, through pipeline feed spray aqueous slkali in the alkali spray column 18 with in and acidic materials in the gas, then discharge.Exhaust-gas treatment amount: 25000m
3/ h, the smelly degree of original waste gas: 6000 dimensionless, H
2S＞170mg/m
3, NH
3＞280mg/m
3Through active bamboo carbon-H
2O
2After the technical finesse of complex phase catalytic oxidation, the smelly degree of purified gas is 31 dimensionless, H
2S＜＜1mg/m
3, NH
3＜1mg/m
3Reached the 15m aiutage discharge capacity H of GB1455496 regulation
2S＜0.33kg/h (10mg/m
3), NH
3＜4.9kg/h (15mg/m
3), the nondimensional index in smelly degree＜2000, get good effect.
Claims (16)
1. active bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas, it is characterized in that, comprise the exhaust gas entrance (31) that links to each other through pipeline successively, preprocessor (32), wet type bamboo carbon complex phase catalytic oxidation bed (35), alkali spray column (18), blower fan (8) and aiutage (24), wherein, wet type bamboo carbon complex phase catalytic oxidation bed comprises housing (16), demister (1), complex phase bamboo C catalyst layer, circulated sprinkling pump (11) and storage tank (12), housing (16) is provided with the exhaust gas entrance (23) and the clean gas outlet (15) of wet type bamboo carbon complex phase catalytic oxidation bed, between the exhaust gas entrance (23) of wet type bamboo carbon complex phase catalytic oxidation bed and clean gas outlet (15), be arranged with demister (1) and one or more layers complex phase bamboo C catalyst layer, wherein demister (1) is near clean gas outlet (15), and circulated sprinkling pump (11) links to each other with the delivery port of storage tank (12).
2. active according to claim 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas, it is characterized in that, described complex phase bamboo C catalyst layer comprises grid (4), complex phase bamboo C catalyst (2) and shower (29), shower is provided with nozzle (5), complex phase bamboo C catalyst (2) is fixed on the grid (4), shower (29) is positioned at the top of complex phase bamboo C catalyst (2), and shower (29) links to each other with the delivery port of circulated sprinkling pump (11) through connecting water pipe.
3. as active bamboo carbon-H as described in the claim 2
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described shower (29) is apart from complex phase bamboo C catalyst (2) 600-800 millimeter, and every layer of complex phase bamboo C catalyst layer is equipped with 3-5 and props up shower, and 2-5 nozzle is housed on each shower.
4. as active bamboo carbon-H as described in the claim 2
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, also is provided with silk screen (3) on the grid (4) of described complex phase bamboo C catalyst layer.
5. active according to claim 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described circulated sprinkling pump (11) is a submerged pump, and the pump housing of submerged pump gos deep into the following water level place of storage tank (12).
6. active according to claim 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas, it is characterized in that, described wet type bamboo carbon complex phase catalytic oxidation bed is a vertical structure, the exhaust gas entrance (23) of storage tank (12) and wet type bamboo carbon complex phase catalytic oxidation bed is positioned at housing bottom, be one or more layers complex phase bamboo C catalyst layer on the exhaust gas entrance (23) of wet type bamboo carbon complex phase catalytic oxidation bed, on the top layer complex phase bamboo C catalyst layer is demister (1), and clean gas outlet (15) is positioned at case top.
7. active according to claim 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, the housing (16) of described wet type bamboo carbon complex phase catalytic oxidation bed (35) adds glass fiber by unsaturated ethylene base mylar and makes through winding.
8. active according to claim 1 bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described wet type bamboo carbon complex phase catalytic oxidation bed (35) is furnished with independently medicine system, and medicine system is by hydrogen peroxide solution storage tank (26), hydrogen peroxide conveying and metering pump (25), H
2SO
4Solution storage trough (28), H
2SO
4Conveying and metering pump (27) and carrier pipe are formed, and hydrogen peroxide solution storage tank (26) links to each other with hydrogen peroxide conveying and metering pump (25) through carrier pipe, again through carrier pipe with to be located at the circulated sprinkling pump continuous with the dosing mouth (10) that is connected on the water pipe between the shower, H
2SO
4Solution storage trough (28) is through carrier pipe and H
2SO
4Conveying and metering pump (27) links to each other, again through carrier pipe and the H that is located on the storage tank (12)
2SO
4Dosing mouth (36) links to each other.
9. as active bamboo carbon-H as described in arbitrary claim among the claim 1-8
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, in the described complex phase bamboo C catalyst layer, the stacking of complex phase bamboo C catalyst (2) highly is a 1-3 rice, and complex phase bamboo C catalyst is fixed in the grid in the mode of closely erecting dress or huddle.
10. as active bamboo carbon-H as described in arbitrary claim among the claim 1-8
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, the storage tank (12) of described wet type bamboo carbon complex phase catalytic oxidation bed (35) is an air water separation type storage tank, and storage tank top is provided with H
2SO
4Dosing mouth (36), shower water refluxing opening (21), water supplement port (20), and standby mouthful.
11. as active bamboo carbon-H as described in the claim 10
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, but the filter of on-line cleaning is housed in the described storage tank.
12. as active bamboo carbon-H as described in the claim 10
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described storage tank is provided with liquid level detection device (22) and pH checkout gear (19).
13. as active bamboo carbon-H as described in the claim 10
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, the side of described storage tank is provided with tubular type liquid level gauge (13).
14. as active bamboo carbon-H as described in the claim 10
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described storage tank bottom is provided with outage (14).
15. as active bamboo carbon-H as described in arbitrary claim among the claim 1-8
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, also can be provided with online shower on the housing (16) of described wet type bamboo carbon complex phase catalytic oxidation bed (35) and take out hole (30) and maintenance peephole (17).
16. as active bamboo carbon-H as described in arbitrary claim among the claim 1-8
2O
2The device of complex phase catalytic oxidation treatment foul gas is characterized in that, described active bamboo carbon-H
2O
2The device of complex phase catalytic oxidation treatment foul gas is provided with many groups bamboo carbon complex phase catalytic oxidation bed in parallel, during use, realizes alternately regeneration through the transfer valve of being located on the pipeline (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100449791A CN101496993B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing malodorous gas by active bamboo charcoal-H2O2 complex phase catalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100449791A CN101496993B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing malodorous gas by active bamboo charcoal-H2O2 complex phase catalytic oxidation |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010554203 Division CN102059048B (en) | 2009-01-07 | 2009-01-07 | Method for treating obnoxious gas by active bamboo charcoal-H2O2 composite catalytic oxidation |
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| CN101496993A CN101496993A (en) | 2009-08-05 |
| CN101496993B true CN101496993B (en) | 2011-06-22 |
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| CN2009100449791A Expired - Fee Related CN101496993B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing malodorous gas by active bamboo charcoal-H2O2 complex phase catalytic oxidation |
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| CN102030379B (en) * | 2009-09-24 | 2012-06-27 | 中国石油化工股份有限公司 | Oil refining device deodorant and preparation method thereof |
| CN102861502B (en) * | 2011-07-07 | 2014-10-29 | 昆山协孚人造皮有限公司 | Deodorization management system for exhaust gas in residue discharging area |
| CN102951628A (en) * | 2011-08-24 | 2013-03-06 | 翁维聪 | Metal or metal oxide coated carbon material and manufacturing method thereof |
| CN103084051A (en) * | 2011-11-03 | 2013-05-08 | 无锡华润上华科技有限公司 | Scrubbing tower used for acidic and alkaline exhaust gas of semiconductor plants |
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| CN105032138B (en) * | 2015-06-05 | 2017-07-04 | 中晶环境科技股份有限公司 | Flue gas controller and method |
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| CN105561782A (en) * | 2016-01-22 | 2016-05-11 | 山东派力迪环保工程有限公司 | Three-phase multi-medium catalyzing and oxidizing tower |
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| CN106731576A (en) * | 2016-12-28 | 2017-05-31 | 江苏碧诺环保科技有限公司 | A kind of greasy filth exhaust gas processing device |
| CN107970751B (en) * | 2017-11-24 | 2023-11-21 | 武汉力强绿驰环保有限公司 | Novel method and device for treating organic waste gas |
| CN108273384A (en) * | 2018-03-02 | 2018-07-13 | 深圳市中润恒泰环境科技有限公司 | A kind of deodorizing method and device for administering indoles scatol pyridines stench |
| CN108751328B (en) * | 2018-06-19 | 2021-07-20 | 唐山三友远达纤维有限公司 | Deodorization method for acidic water in viscose fiber industry |
| CN108970299A (en) * | 2018-08-14 | 2018-12-11 | 广州市迪瑞喷雾机械有限公司 | It eliminates the unusual smell the waste gas purification processing spray system of refrigerating function with dedusting |
| CN109045932A (en) * | 2018-09-20 | 2018-12-21 | 岭商（浙江）生物科技有限公司 | A kind of exhaust treatment system and its treatment process of fish meal |
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| CN1242257A (en) * | 1999-01-01 | 2000-01-26 | 中国科学院山西煤炭化学研究所 | Active carbon fiber for removing foul smell gas, and method for preparing same |
| CN101112673A (en) * | 2007-07-13 | 2008-01-30 | 华东理工大学 | Biology deodorization filling material and method for preparing the same |
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