CN208340461U - A kind of photooxidation catalytic waste gas processing system - Google Patents
A kind of photooxidation catalytic waste gas processing system Download PDFInfo
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- CN208340461U CN208340461U CN201820521734.8U CN201820521734U CN208340461U CN 208340461 U CN208340461 U CN 208340461U CN 201820521734 U CN201820521734 U CN 201820521734U CN 208340461 U CN208340461 U CN 208340461U
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- China
- Prior art keywords
- waste gas
- processing system
- gas processing
- photooxidation
- catalytic waste
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- 238000007539 photo-oxidation reaction Methods 0.000 title claims abstract description 40
- 238000012545 processing Methods 0.000 title claims abstract description 24
- 239000002912 waste gas Substances 0.000 title claims abstract description 23
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 60
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims description 33
- 229910052760 oxygen Inorganic materials 0.000 claims description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 31
- 239000002245 particle Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 19
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 19
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 15
- 229910000838 Al alloy Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000003595 mist Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- 229910021389 graphene Inorganic materials 0.000 claims description 9
- 239000004408 titanium dioxide Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 48
- 239000001569 carbon dioxide Substances 0.000 abstract description 24
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 24
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 20
- 241000894006 Bacteria Species 0.000 abstract description 14
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 13
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 13
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 24
- 239000000920 calcium hydroxide Substances 0.000 description 14
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 13
- 238000006555 catalytic reaction Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000003463 adsorbent Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 4
- 235000010261 calcium sulphite Nutrition 0.000 description 4
- KAEAMHPPLLJBKF-UHFFFAOYSA-N iron(3+) sulfide Chemical compound [S-2].[S-2].[S-2].[Fe+3].[Fe+3] KAEAMHPPLLJBKF-UHFFFAOYSA-N 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- -1 active oxygen Chemical compound 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical class O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical class [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 238000013032 photocatalytic reaction Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- SGIDZKQKQMFQNU-UHFFFAOYSA-N [dihydroxy(oxo)-$l^{6}-sulfanylidene]calcium Chemical compound OS(O)(=O)=[Ca] SGIDZKQKQMFQNU-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000009089 cytolysis Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
The utility model relates to technical field of waste gas treatment, in particular to a kind of photooxidation catalytic waste gas processing system, solve the problems, such as that exhaust treatment system exhaust-gas treatment effect in the prior art is poor, its key points of the technical solution are that, a kind of photooxidation catalytic waste gas processing system, including pretreatment unit, photooxidation catalyst reaction device and collection of products device, photooxidation catalyst reaction device includes the shell baffle plate arranged in a crossed manner with stacking, actinolyte is mounted at the face of each baffle plate on shell, reaction channel is formed between baffle plate and the shell, the sulfur dioxide and hydrogen sulfide in removing exhaust gas are removed by pretreatment unit, the bacterium in exhaust gas and exhaust gas is cracked by photooxidation catalyst reaction device, pass through collection of products device, the carbon dioxide of generation is collected.To be efficiently treated through to exhaust gas, the pollution to environment is reduced.
Description
Technical field
The utility model relates to technical field of waste gas treatment, in particular to a kind of photooxidation catalytic waste gas processing system.
Background technique
As country is higher and higher for the attention degree of environmental protection in recent years, exhaust gas treatment technology flourishes, especially
The processing of photooxidation catalytic waste gas has huge progress.Photooxidation catalysis reaction is to utilize high energy high ozone UV ultraviolet beam, irradiation
Exhaust gas to be processed, to make a kind of reaction of exhaust gas generation pyrolysis oxidization.
It is organic that a kind of photooxidation catalysis is disclosed in the Chinese utility model patent that Authorization Notice No. is CN202460470U
Exhaust processor, including shell, ultraviolet lamp and filter medium, shell both ends are respectively equipped with air inlet and gas outlet, air inlet with
Filter medium is provided between gas outlet, filter medium is load nano-TiO2The activated carbon fibre of photooxidation catalyst, shell it is outer
Portion is provided with the circuit board connecting with ultraviolet lamp.Since the time of contact of exhaust gas and ultraviolet light is shorter, the degradation time of exhaust gas is not
Foot, causes exhaust gas decomposition insufficient, thus exhaust-gas treatment effect is poor.
Utility model content
The purpose of the utility model is to provide a kind of photooxidation catalytic waste gas processing systems, it is advantageous that, it handles to exhaust gas
Treatment effeciency is high, high treating effect.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of photooxidation catalytic waste gas processing system, which is characterized in that including pretreatment unit, the light for removing sulphide removal
Oxygen catalyst reaction device and collection of products device, the photooxidation catalyst reaction device include the shell baffling arranged in a crossed manner with stacking
Plate is mounted on actinolyte on the shell between every two pieces of baffle plates, is formed between the baffle plate and the shell
Reaction channel, the lower end of the reaction channel are provided with the air inlet being connected with the pretreatment unit, and the other end is provided with
The gas outlet being connected with the collection of products device.
By using above-mentioned technical proposal, main band sulfide frowzy is hydrogen sulfide and titanium dioxide in industrial waste gas
It is sour gas that sulphur, hydrogen sulfide and sulfur dioxide, which have, may generate corrosion for processing equipment, enter in atmosphere then
It will cause pollution, and water molecules in air, when precipitation leads to acid rain.By the pretreatment unit of sulfide, removal is useless
Hydrogen sulfide and sulfur dioxide in gas reduce the corrosion to equipment and the pollution to air.
By photooxidation catalyst reaction device, photooxidation catalysis reaction can be carried out to exhaust gas, is issued using actinolyte
High energy ultraviolet irradiates organic exhaust gas and foul gas, the molecular link of rapid cleavage exhaust gas and foul gas, and moment opens and changes
Become its molecular structure, destroy nucleic acid, generate a series of photodissociation fission reaction, re-start DNA molecular permutation and combination, degradation turns
Become the low molecular compound of the nonhazardous such as carbon dioxide and water.
Meanwhile the oxygen in high energy UV irradiation waste gas decomposition generates free oxygen, i.e. active oxygen, free oxygen carries just
Negative electron is uneven, thus in conjunction with oxygen molecule, and then generate ozone；The dirt of free state after being cracked by high energy ultraviolet
Molecule is contaminated in conjunction with ozone, is carbon dioxide and hydrone by ozone oxidation.
It is arranged in a crossed manner by the stacking of baffle plate, in effective space, the flow distance of exhaust gas is extended, is extended anti-
Between seasonable, so that organic exhaust gas and reacting for foul gas are more thorough, the effect of reaction is improved.The purple being arranged at baffle plate
Outside line transmitter, can the reaction channel to partition two sides be irradiated, to improve the utilization rate of ultraviolet light, and then accelerate
Killing of the ultraviolet light to microorganism and the cracking to exhaust gas.
Preferably, the baffle plate boring is provided with installation cavity, outlet is uniformly offered on the baffle plate
Hole, the oxygen conveying pipe for oxygen supply is equipped in the installation cavity, and oxygen is discharged through venthole.
By using above-mentioned technical proposal, due to needing ozone, the oxygen mixed in exhaust gas contains in photooxidation catalysis reaction
Measure it is less, thus generate ozone it is also less, the treatment effeciency for causing exhaust gas is lower.By oxygen conveying pipe by oxygen through going out
Stomata is supplied oxygen into the reaction channel of partition two sides, provides enough oxygen, to generate enough ozone, and then significantly
Improve the association rate of ozone and exhaust gas, but also ozone and pollute molecule combination it is more thorough, improve photooxidation and urge
Change the treatment effect to exhaust gas of exhaust treatment system.Simultaneously as venthole is uniformly arranged, so that reaction channel leans on
Higher ozone concentration is still kept at nearly gas outlet, improves the effect of processing exhaust gas.
Preferably, being mounted on aluminum alloy plates with mirror surface on the inner wall of the surface of the baffle plate and the shell.
By using above-mentioned technical proposal, aluminum alloy plates with mirror surface can reflect ultraviolet light, and the two sides of reaction channel
It is mounted on aluminum alloy plates with mirror surface, so that ultraviolet light occurs repeatedly to reflect between aluminum alloy plates with mirror surface, to greatly strengthen purple
The service efficiency of outside line improves the reaction efficiency of reaction channel photooxidation catalysis reaction.
Meanwhile in conjunction with the setting of venthole, while oxygen is discharged out of venthole, the baffle plate around gas vent will
Ultraviolet light is reflected, and is enhanced oxygen and is irradiated the rate for generating ozone by ultraviolet light.Due to uniformly opening up for venthole, thus
So that the ozone content even concentration in reaction channel everywhere, improves ozone to the treatment effect of exhaust gas.
Preferably, installing fan at the venthole, the fan is made of titanium dioxide.
By using above-mentioned technical proposal, oxygen pushes fan rotation after venthole discharge.Oxygen is irradiated by ultraviolet light
It is quickly generated ozone, the ozone of generation is pushed to the middle part of reaction channel by rotating by fan, and fresh oxygen is mended rapidly
It is charged to the vacancy left after ozone leaves, to accelerate the ozone of generation and the exchange velocity of fresh oxygen.Thus, a side
On the other hand face, improves the efficiency that fresh oxygen is converted into ozone so that ozone is more uniform in reaction channel.
Simultaneously as the electronic structure of titanium dioxide is that the conduction band formed by valence band and unoccupied orbital is constituted, when it
When being irradiated by ultraviolet light, the ultraviolet light bigger than forbidden bandwidth energy is absorbed, and makes the electron excitation of valence band to conduction band, knot
Fruit makes valence band lack electronics and hole occurs, and is formed and is easy mobile and highly active electron hole pair.Such electronics
Hole can combine one side again between each other when various redox reactions occur, and with heat or generate fluorescence
Form releases energy, and the freedom that on the other hand can be dissociated into free migration to crystalline surface or other reacting environment in lattice is empty
Cave and free electron, and captured immediately by surface group.
The activation of titanium dioxide surface water generates surface hydroxyl and captures free hole, forms hydroxyl radical free radical, and it is free from
Superoxide radical can be generated in conjunction with absorbing state oxygen by electronics quickly, thus the bacterium of surrounding and virus can be killed.
Thus, under ultraviolet irradiation light touching catalysis reaction occurs for the fan made of titanium dioxide, is greatly promoted
With the energy fusion for strengthening ultraviolet light, thus more efficiently crack exhaust gas while, catalysis produce more active oxygens
And ozone, more thorough catalysis oxidation decomposition reaction is carried out to exhaust gas.
Preferably, the surface of the fan is handled by frosted.
By using above-mentioned technical proposal, after being handled by frosted, the degree of roughness on fan surface is increased, ultraviolet light is worked as
It is radiated on frosted particle, is reflected between frosted particle, to increase time that ultraviolet light is irradiated to titanium dioxide surface
Number, to improve the efficiency that fan absorbs ultraviolet light, further improve cracking exhaust gas and generate the effect of active oxygen, ozone
Rate.
Preferably, the pretreatment unit includes appendix and is set to the pretreatment unit entrance and is used to spray
Drench calcium hydroxide solution spraying mechanism, spraying mechanism include be mounted at the top of appendix for spray water mist spray head,
It is set to collecting tank below spray head and is mounted on the circulating pump of sump bottom, the inlet and mounting groove of the circulating pump
Bottom connection, the liquid outlet of the circulating pump is connected with the spray head.
By using above-mentioned technical proposal, spray head sprays calcium hydroxide water mist, when exhaust gas passes through calcium hydroxide water mist, gives up
Sulfur dioxide in gas reacts with calcium hydroxide, calcium sulfite precipitating and water is generated, to eliminate two in exhaust gas
Sulfur oxide reduces the corrosion to processing equipment and the pollution to air.
Constantly calcium hydroxide solution is transported in spray head out of catch basin by circulating pump, to realize calcium hydroxide
The recycling of solution.Exhaust gas first passes through the calcium hydroxide water mist of spray head ejection, thus by exhaust gas when entering appendix
Sulfur dioxide removal.Calcium hydroxide solution reacts with sulfur dioxide, calcium sulfite precipitating is generated, to eliminate useless
Sulfur dioxide in gas.Simultaneously as calcium sulfite precipitating is generated, convenient for the collection and recycling of sulfide.
Preferably, the pretreatment unit further includes the filling-material structure being mounted in the appendix, the filler knot
The both ends of structure are equipped with lattice grate plate component, are filled with active oxidation iron particle in the filling-material structure.
By using above-mentioned technical proposal, after the calcium hydroxide water mist by spraying mechanism, hydrogen sulfide in exhaust gas with
Reversible reaction, hydrogen sulfide and calcium hydroxide reaction, H occur for calcium hydroxide2S+Ca(OH)2→CaS↓+2H2O, but calcium sulfide exists
Easily hydrolysis generates hydrogen sulfide, CaS+2H in moist environment2O→ H2S+Ca(OH)2The vulcanization being thus difficult in removing exhaust gas
Hydrogen.
By the setting of active oxidation iron particle, desulphurization reaction occurs for active oxidation iron particle and hydrogen sulfide,
Fe203·H20+3H2S=Fe2S3·H20+3H20 (1)；
Fe203·H20+3H2S=2FeS+S+4H20 (2)；
When reaction environment is alkalinity, reaction is carried out by (1)；When reaction environment is acid, reaction is carried out by (2),
When reacting under room temperature, the iron sulfide generated in reaction (1) is easy to regenerate,
Fe203·H20+3/202=Fe203·H 20+3S (3)；
Thus, under conditions of aerobic alkalinity, be conducive to the desulfurization regeneration of active oxidation iron particle.Passing through calcium hydroxide
After water mist, just it is the reaction of active oxidation iron particle, provides an alkaline environment, thus the removal to hydrogen sulfide of being more convenient for
With the recycling to sulphur.
Preferably, far from the spraying mechanism side lattice grate plate component include two layers of lattice grate plate disposed in parallel, two
A filled cavity is formed between the lattice grate plate, is filled with active carbon particle in the filled cavity.
By using above-mentioned technical proposal, by active carbon particle for benzene, phenol, chlorine, pesticide, detergent, haloform
Etc. certain absorption can be carried out, meanwhile, active carbon particle is filled in far from the spraying mechanism side, can prevent active carbon particle
The water mist containing calcium hydroxide swept along in exhaust gas is absorbed, alkaline environment needed for influencing activated ferric oxide.
Preferably, the lattice grate plate is made of nano-graphene material.
By using above-mentioned technical proposal, due in organic exhaust gas and foul gas, usually containing some bacteriums, nanometer stone
The partial size of black alkene particle is nanoscale, and the usual size of bacterium is micron order, the former is 1000 times more small in size than the latter or so, thus
Nano-graphene particle is easily inserted into bacterium, by bacteria lysis；When bacterium is attached on nano-graphene, nano-graphite
Alkene particle wraps up bacterium, prevents bacterium from absorbing energy, thus by bacterium " hungry to death "；Meanwhile nanoscale graphite alkene particle
It can enter in bacterial body, destroy bacterium internal structure, so that bacterium be made to decompose from inside to outside, it is thin to further speed up killing
The speed of bacterium.
Simultaneously as exhaust gas will pass through lattice grate plate, graphene has good suction-operated for ammonia nitrogen class exhaust gas, can have
Effect removal ammonia nitrogen class exhaust gas.
Meanwhile nano-graphene is due to the tensile property of σ key and entire two dimensional crystal plane tough between carbon atom,
So that nano-graphene has very high strength character, Young's modulus 1100Gpa, and breaking strength reaches 125Gpa, thus
The lattice grate plate made of nano-graphene material has good mechanical performance, relative to common metal material service life with
Reliability is obviously improved.
Preferably, the collection of products device includes for compressing the vacuum pump of carbon dioxide gas, Roots blower
With displacement air compressor.
By using above-mentioned technical proposal, collection of products device utilizes pressure swing adsorption method, carries out recycling benefit to carbon dioxide
With, the basic principle of pressure-variable adsorption is to utilize adsorbent to difference gas under different adsorbances, thrust and velocity conditions, with
Pressure change and changed characteristic, effective collection to gas is realized using pressuring method.
Carbon dioxide is adsorbed agent and is adsorbed, and after absorption, is depressured by vacuum pump, to make adsorbent pair
It is greatly enhanced in the adsorption capacity of carbon dioxide, after decompression, absorption forward position reaches bed outlet, and another mistake is adsorbed direction and will be produced
Pressure in object collection device is big from adsorbent by replacing the carbon dioxide that air compressor restores to be adsorbed at this time to normal pressure
Amount parses, then carbon dioxide is discharged by Roots blower, to realize the purification and collection to carbon dioxide.
After carbon dioxide parses, the regeneration of adsorbent is completed, repeats the above steps and carries out persistently mentioning for carbon dioxide
Pure and collection.
Pass through the setting of collection of products device, on the one hand, the discharge for reducing carbon dioxide slows down greenhouse effects；Separately
On the one hand, carbon dioxide is purified and is collected, convenient for the further utilization to carbon dioxide, there is preferable economic effect
Benefit.
In conclusion the utility model has the following beneficial effects:
1, by the setting of the actinolyte on baffle plate shell corresponding with partition, in effective space, extend
The flow distance of exhaust gas, extends the reaction time, so that organic exhaust gas and reacting for foul gas be more thorough, improves anti-
The effect answered；Actinolyte can the reaction channel to partition two sides be irradiated, to improve the utilization of ultraviolet light
Rate, and then accelerate killing of the ultraviolet light to microorganism and the cracking to exhaust gas.
2, by the setting of aluminum alloy plates with mirror surface and fan, aluminum alloy plates with mirror surface can reflect ultraviolet light, and react
The two sides in channel are mounted on aluminum alloy plates with mirror surface, so that ultraviolet light occurs repeatedly to reflect between aluminum alloy plates with mirror surface, thus greatly
The service efficiency of ultraviolet light is enhanced greatly, improves the reaction efficiency of reaction channel photooxidation catalysis reaction；Titanium dioxide is ultraviolet
Under the irradiation of line, light touching catalysis reaction occurs, the energy fusion of ultraviolet light is greatly promoted and strengthen, thus more efficiently
While cracking exhaust gas, catalysis produces more active oxygens and ozone, carries out more thorough catalysis oxidation to exhaust gas and decomposes instead
It answers.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of photooxidation catalytic waste gas processing system；
Fig. 2 is the structural schematic diagram of pretreatment unit；
Fig. 3 is the structural schematic diagram of photooxidation catalyst reaction device；
Fig. 4 is the enlarged drawing in Fig. 3 at A.
In figure: 1, pretreatment unit；11, appendix；12, spraying mechanism；121, spray head；122, collecting tank；123, it follows
Ring pump；13, filling-material structure；131, lattice grate plate component；1311, lattice grate plate；132, active carbon particle；133, activated ferric oxide
Grain；2, photooxidation catalyst reaction device；21, shell；22, baffle plate；221, venthole；23, reaction channel；24, air inlet；25,
Gas outlet；26, actinolyte；27, oxygen conveying pipe；28, aluminum alloy plates with mirror surface；29, fan；3, collection of products device；
31, vacuum pump；32, Roots blower；33, air compressor is replaced.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
With reference to attached drawing 1, a kind of photooxidation catalytic waste gas processing system, including for removing pretreatment unit 1, the light of sulphide removal
Oxygen catalyst reaction device 2 and collection of products device 3.
With reference to attached drawing 2, pretreatment unit 1 includes appendix 11,12 and of spraying mechanism for being set to 11 entrance of appendix
The filling-material structure 13 being mounted in appendix 11.
Spraying mechanism 12 includes the spray head 121 for being mounted on 11 top of appendix, inner wall of the spray head 121 along appendix 11
Setting, the lower section of spray head 121 are provided with collecting tank 122, and the bottom of collecting tank 122 is provided with circulating pump 123, circulating pump 123
Inlet be connected with the bottom of collecting tank 122, the liquid outlet of circulating pump 123 is connected with spray head 121.
Circulating pump 123 constantly sprays the calcium hydroxide solution in collecting tank 122 out of spray head 121, forms hydrogen-oxygen
Change calcium water mist, for exhaust gas when by calcium hydroxide water mist, the sulfur dioxide in exhaust gas is reacted with calcium hydroxide solution generates Asia
Calcium sulfate precipitation, to eliminate the sulfur dioxide in exhaust gas.122 bottom of collecting tank is provided with grid, thus by sulfurous acid
Calcium precipitate is stopped, and is prevented calcium sulfite precipitating from entering and is blocked access in circulating pump 123.
The both ends of filling-material structure 13 are equipped with lattice grate plate component 131, and lattice grate plate component 131 is by nano-graphene material system
At.Filled with the active oxidation iron particle 133 for removing hydrogen sulfide between lattice grate plate component 131.
Partition wall component includes two layers of lattice grate plate 1311 disposed in parallel, and lattice grate plate 1311 is connected to the inner wall of appendix 11
On, a filled cavity is formd between two lattice grate plates 1311 of same lattice grate plate component 131, filling is filled with active carbon particle within the walls
132.It is provided with a large amount of stomata on lattice grate plate 1311, certain blocking is carried out to stomata by active carbon particle 132, prevents from living
Property ferric oxide particles 133 are blown out from filling-material structure 13.
By the exhaust gas of calcium hydroxide water mist, the active carbon particle 132 in filled cavity is first passed through, then by interstitital texture
Active oxidation iron particle 133.
By active carbon particle, bulky grain solid impurity in adsorbable exhaust gas prevents large granular impurity from blocking spray head
121；Meanwhile active carbon particle can carry out certain absorption for benzene, phenol, chlorine, pesticide, detergent, haloform etc., for
The heavy metal ion such as silver, cadmium, copper, mercury, antimony, arsenic, bismuth, tin, lead, chromate also have preferable assimilation effect.
By the setting of active oxidation iron particle 133, desulphurization reaction occurs for active oxidation iron particle 133 and hydrogen sulfide,
Fe203•H20+3H2S=Fe2S3•H20+3H20 (1)；
Fe203•H20+3H2S=2FeS+S+4H20 (2)；
When reaction environment is alkalinity, reaction is carried out by (1)；When reaction environment is acid, reaction is carried out by (2),
When reacting under room temperature, the iron sulfide generated in reaction (1) is easy to regenerate,
Fe203•H20+3/202=Fe203•H 20+3S (3)；
Thus, under conditions of aerobic alkalinity, be conducive to the desulfurization regeneration of active oxidation iron particle 133.Passing through hydrogen-oxygen
After changing calcium water mist, just it is the reaction of active oxidation iron particle 133, an alkaline environment is provided, to be more convenient for vulcanization
The removal of hydrogen and recycling to sulphur.
With reference to attached drawing 1 and attached drawing 3, photooxidation catalyst reaction device 2 includes that the shell 21 of rectangle and 21 internal layer of shell overlap fork
The baffle plate 22 of setting, it is arranged in parallel between each baffle plate 22.Reaction channel 23 is formed between each baffle plate 22 and shell 21, instead
The one end in channel 23 is answered to be provided with the air inlet 24 being connected with pretreatment unit 1, the other end is provided with and collection of products device 3
The gas outlet 25 being connected；Actinolyte 26 is mounted at the face of each baffle plate 22 on shell 21.
22 inner hollow of baffle plate is provided with installation cavity, and the oxygen conveying pipe 27 for oxygen supply is equipped in installation cavity, folding
The two sides of flowing plate 22 uniformly offer several venthole 221(with reference to attached drawing 4), oxygen is through venthole 221 uniformly from partition
Two sides discharge.
Aluminum alloy plates with mirror surface 28 is mounted on the surface of baffle plate 22 and the inner wall of shell 21, on aluminum alloy plates with mirror surface 28
Fan 29(is provided at venthole 221 with reference to attached drawing 4), fan 29 is made of titanium dioxide, and the surface of fan 29 is through overground
Sand processing.
Comparative test:
Embodiment 1: it is configured by the photocatalytic reaction device in this patent；
Comparative example 1: being only different from embodiment 1, replaces aluminum alloy plates with mirror surface with mirror face stainless steel plate；
Comparative example 2: being only different from embodiment 1, does not open up venthole on aluminum alloy plates with mirror surface, oxygen is by reaction channel
It is supplied at air inlet；
Comparative example 3: being only different from embodiment 1, and fan is arranged not at venthole.
It is passed through exhaust gas for photocatalytic reaction device, measures the ozone concentration at air inlet 24 and at gas outlet 25 respectively.
Table 1: the ozone concentration at air inlet and gas outlet
| Inlet concentrations (mg/m3) | Gas outlet concentration (mg/m3) | |
| Embodiment 1 | 100 | 98 |
| Comparative example 1 | 100 | 76 |
| Comparative example 2 | 100 | 42 |
| Comparative example 3 | 100 | 58 |
From table 1, obtain, it is dense at gas outlet 25 when photooxidation catalyst reaction device is configured according to this patent
Degree is much larger than concentration at the gas outlet 25 using the set-up mode in comparative example 1, comparative example 2 and comparative example 3.
With reference to attached drawing 1, collection of products device 3, including vacuum pump 31, Roots blower 32 and displacement air compressor 33.
Collection of products device 3 utilizes pressure swing adsorption method, is recycled to carbon dioxide, the basic principle of pressure-variable adsorption
It is to utilize adsorbent to difference gas under different adsorbances, thrust and velocity conditions, it is changed with pressure change
Characteristic realizes effective collection to gas using pressuring method.
Carbon dioxide is adsorbed agent and is adsorbed, and after absorption, is depressured by vacuum pump 31, to make adsorbent
The adsorption capacity of carbon dioxide is greatly enhanced, after decompression, absorption forward position reaches bed outlet, and another mistake adsorbs direction will
Pressure in collection of products device 3 is restored by displacement air compressor 33 to normal pressure, and the carbon dioxide being adsorbed at this time is from absorption
Largely parse in agent, then carbon dioxide be discharged by Roots blower 32, thus realize to the purification of carbon dioxide with
It collects.
After carbon dioxide parses, the regeneration of adsorbent is completed, repeats the above steps and carries out persistently mentioning for carbon dioxide
Pure and collection.
Work step:
S1, exhaust gas are passed through in pretreatment unit 1, first pass through spraying mechanism 12, remove the sulfur dioxide in removing exhaust gas；
S2, using filling-material structure 13, remove the hydrogen sulfide in removing exhaust gas；
S3, entered in photooxidation catalyst reaction device 2 by air inlet 24, cracking is carried out to exhaust gas and to the bacterium in exhaust gas
It is killed；
S4, the carbon dioxide of generation and water are collected, by collection of products device 3 using pressure swing adsorption method, to dioxy
Change carbon to be purified and collected.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of photooxidation catalytic waste gas processing system, including it is characterised in that it includes for removing the pretreatment unit of sulphide removal
(1), photooxidation catalyst reaction device (2) and collection of products device (3), the photooxidation catalyst reaction device (2) include shell (21)
With baffle plate (22) arranged in a crossed manner is laminated, ultraviolet light hair is mounted on the shell (21) between every two pieces of baffle plates (22)
Emitter (26) forms reaction channel (23) between the baffle plate (22) and the shell (21), under the reaction channel (23)
End is provided with the air inlet (24) being connected with the pretreatment unit (1), and the other end is provided with and the collection of products device
(3) gas outlet (25) being connected.
2. a kind of photooxidation catalytic waste gas processing system according to claim 1, which is characterized in that in the baffle plate (22)
Portion is hollow to be provided with installation cavity, uniformly offers venthole (221) on the baffle plate (22), is equipped in the installation cavity
For the oxygen conveying pipe (27) of oxygen supply, oxygen is discharged through venthole (221).
3. a kind of photooxidation catalytic waste gas processing system according to claim 2, which is characterized in that the baffle plate (22)
Aluminum alloy plates with mirror surface (28) is mounted on the inner wall of surface and the shell (21).
4. a kind of photooxidation catalytic waste gas processing system according to claim 3, which is characterized in that the venthole (221)
Place's installation fan (29), the fan (29) are made of titanium dioxide.
5. a kind of photooxidation catalytic waste gas processing system according to claim 4, which is characterized in that the table of the fan (29)
Face is handled by frosted.
6. a kind of photooxidation catalytic waste gas processing system according to claim 1, which is characterized in that the pretreatment unit
(1) include appendix (11) and be set to the pretreatment unit (1) entrance and for spraying the spray of calcium hydroxide solution
Mechanism (12), spraying mechanism (12) include being mounted on the spray head (121) for spray water mist at the top of appendix (11), being arranged
Collecting tank (122) below spray head (121) and the circulating pump (123) for being mounted on collecting tank (122) bottom, the circulating pump
(123) inlet is connected to the bottom of collecting tank (122), the liquid outlet of the circulating pump (123) and the spray head (121)
It is connected.
7. a kind of photooxidation catalytic waste gas processing system according to claim 6, which is characterized in that the pretreatment unit
It (1) further include the filling-material structure (13) being mounted in the appendix (11), the both ends of the filling-material structure (13) are equipped with lattice
Grate plate component (131), the filling-material structure (13) is interior to be filled with active oxidation iron particle (133).
8. a kind of photooxidation catalytic waste gas processing system according to claim 7, which is characterized in that far from the spraying mechanism
(12) the lattice grate plate component (131) of side includes two layers of lattice grate plate (1311) disposed in parallel, between the two lattice grate plates (1311)
A filled cavity is formed, is filled with active carbon particle (132) in the filled cavity.
9. a kind of photooxidation catalytic waste gas processing system according to claim 7, which is characterized in that the lattice grate plate (1311)
It is made of nano-graphene material.
10. a kind of photooxidation catalytic waste gas processing system according to claim 1, which is characterized in that the collection of products dress
Setting (3) includes vacuum pump (31), Roots blower (32) and displacement air compressor (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521734.8U CN208340461U (en) | 2018-04-12 | 2018-04-12 | A kind of photooxidation catalytic waste gas processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521734.8U CN208340461U (en) | 2018-04-12 | 2018-04-12 | A kind of photooxidation catalytic waste gas processing system |
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| Publication Number | Publication Date |
|---|---|
| CN208340461U true CN208340461U (en) | 2019-01-08 |
Family
ID=64884674
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355474A (en) * | 2018-04-12 | 2018-08-03 | 宁波大学 | A kind of photooxidation catalytic waste gas processing system |
-
2018
- 2018-04-12 CN CN201820521734.8U patent/CN208340461U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108355474A (en) * | 2018-04-12 | 2018-08-03 | 宁波大学 | A kind of photooxidation catalytic waste gas processing system |
| CN108355474B (en) * | 2018-04-12 | 2024-05-07 | 宁波大学 | Photo-oxygen catalytic waste gas treatment system |
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