CN206262326U - Nitrogen dioxide cycle absorption plant - Google Patents
Nitrogen dioxide cycle absorption plant Download PDFInfo
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- CN206262326U CN206262326U CN201621293912.3U CN201621293912U CN206262326U CN 206262326 U CN206262326 U CN 206262326U CN 201621293912 U CN201621293912 U CN 201621293912U CN 206262326 U CN206262326 U CN 206262326U
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- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 title claims abstract description 104
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 89
- 238000003860 storage Methods 0.000 claims abstract description 109
- 239000002608 ionic liquid Substances 0.000 claims abstract description 51
- LYLDIIUFTYRPPK-UHFFFAOYSA-N 1h-imidazole-2-sulfonic acid Chemical compound OS(=O)(=O)C1=NC=CN1 LYLDIIUFTYRPPK-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000003760 magnetic stirring Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 4
- 241000196324 Embryophyta Species 0.000 abstract description 24
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 240000008042 Zea mays Species 0.000 abstract description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 abstract description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 abstract description 4
- 235000005822 corn Nutrition 0.000 abstract description 4
- 229910052711 selenium Inorganic materials 0.000 abstract description 4
- 239000011669 selenium Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 28
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 25
- 230000008569 process Effects 0.000 description 19
- 239000007788 liquid Substances 0.000 description 17
- -1 imidazole sulfonic acid salt ion Chemical class 0.000 description 14
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- IQQRAVYLUAZUGX-UHFFFAOYSA-N 1-butyl-3-methylimidazolium Chemical compound CCCCN1C=C[N+](C)=C1 IQQRAVYLUAZUGX-UHFFFAOYSA-N 0.000 description 4
- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- ZWWCURLKEXEFQT-UHFFFAOYSA-N dinitrogen pentaoxide Chemical compound [O-][N+](=O)O[N+]([O-])=O ZWWCURLKEXEFQT-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N monofluoromethane Natural products FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- RABFGPMWVQNDHI-UHFFFAOYSA-M 1-hexyl-3-methylimidazol-3-ium;trifluoromethanesulfonate Chemical compound [O-]S(=O)(=O)C(F)(F)F.CCCCCC[N+]=1C=CN(C)C=1 RABFGPMWVQNDHI-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000003916 acid precipitation Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002460 imidazoles Chemical class 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- KAIPKTYOBMEXRR-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole Chemical class CCCCN1CN(C)C=C1 KAIPKTYOBMEXRR-UHFFFAOYSA-N 0.000 description 2
- AFSJUFFXOPXIOH-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;trifluoromethanesulfonate Chemical compound CC[NH+]1CN(C)C=C1.[O-]S(=O)(=O)C(F)(F)F AFSJUFFXOPXIOH-UHFFFAOYSA-N 0.000 description 2
- IBZJNLWLRUHZIX-UHFFFAOYSA-N 1-ethyl-3-methyl-2h-imidazole Chemical class CCN1CN(C)C=C1 IBZJNLWLRUHZIX-UHFFFAOYSA-N 0.000 description 2
- JASXXEXFHACUPE-UHFFFAOYSA-N 1-hexyl-3-methyl-2H-imidazole trifluoromethanesulfonic acid Chemical compound OS(=O)(=O)C(F)(F)F.CCCCCCN1CN(C)C=C1 JASXXEXFHACUPE-UHFFFAOYSA-N 0.000 description 2
- PXKPKGHXANCVMC-UHFFFAOYSA-N 3-butyl-1-methyl-1,2-dihydroimidazol-1-ium;trifluoromethanesulfonate Chemical compound OS(=O)(=O)C(F)(F)F.CCCCN1CN(C)C=C1 PXKPKGHXANCVMC-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- WGVGZVWOOMIJRK-UHFFFAOYSA-N 1-hexyl-3-methyl-2h-imidazole Chemical class CCCCCCN1CN(C)C=C1 WGVGZVWOOMIJRK-UHFFFAOYSA-N 0.000 description 1
- RVEJOWGVUQQIIZ-UHFFFAOYSA-N 1-hexyl-3-methylimidazolium Chemical compound CCCCCCN1C=C[N+](C)=C1 RVEJOWGVUQQIIZ-UHFFFAOYSA-N 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 241000255964 Pieridae Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- OMBRFUXPXNIUCZ-UHFFFAOYSA-N dioxidonitrogen(1+) Chemical compound O=[N+]=O OMBRFUXPXNIUCZ-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 231100000567 intoxicating Toxicity 0.000 description 1
- 230000002673 intoxicating effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 238000004172 nitrogen cycle Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 201000007094 prostatitis Diseases 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical class OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a kind of nitrogen dioxide cycle absorption plant.The nitrogen dioxide cycle absorption plant includes：There is storage chamber, the storage room is provided with air admission hole, the first venthole and the second venthole connected with the storage chamber in storage room, the storage room；Vacuum generator, the vacuum generator is connected with first venthole；And absorption chamber, there is the absorbing cavity for accommodating imidazole sulfonic acid ionic liquid in the absorption chamber, the absorbing cavity is connected with second venthole.Nitrogen dioxide cycle absorption plant according to the utility model embodiment can fully, effectively absorb the nitrogen dioxide contained in gas, and can run at room temperature, so as to have the advantages that high-selenium corn amount, low energy consumption, non-secondary pollution, efficent use of resources.
Description
Technical field
The utility model is related to nitrogen dioxide cycle absorption plant.
Background technology
Nitrogen oxides（Nitrogen Oxides, NOX）It is one of main gaseous contaminant in air, generally refers mainly to
Nitric oxide（NO）, nitrogen dioxide（NO2）, nitrous oxide（N2O）, nitrogen peroxide（N2O3）, dinitrogen tetroxide（N2O4）With five oxygen
Change phenodiazine（N2O5）Deng except being in addition to solid-state, gas to be under other nitrogen oxides normal temperature and pressures under dinitrogen pentoxide normal temperature and pressure
State.And our the general signified nitrogen oxides as air pollutants are mainly nitric oxide and nitrogen dioxide.Nitrogen oxides is arranged
Being placed in air can form the smog of yellow or brown, be commonly called as " Huanglong ", be cause at present atmosphere pollution important pollution sources it
One.NOXWaste gas can not only cause acid rain, acid mist, moreover it is possible to damage the ozone layer, and be brought sternly to natural environment and human being's production, life
Endanger again.High concentration nitrogen oxide harm particularly produced by nitric acid industry is bigger.According to incompletely statistics, China's nitrogen in 2005
The discharge capacity of oxide is up to 22,200,000 tons, is in countries in the world prostatitis, and the atmosphere pollution for thus bringing and acid rain problem are serious,
Economic loss is huge, seriously constrains the sustainable development of Chinese society economy.
The NO of natural dischargeX, the oxidation of ammonia in lightning, nature and the decomposition of organic matter are mostly come from, belong to nature
The nitrogen cycle process on boundary.The NO of mankind's activity dischargeX, most of combustion processes from fossil fuel, such as automobile, aircraft,
The combustion process of thermal power plant etc.；Also the waste gas discharged in industrial production is come from, as nitric acid production, various nitrifying processes are discharged
Waste gas.NO in usual airXConcentration is relatively low, when within the scope of atmospheric environment itself can bear, due to air from
My catharsis does not result in pollution, the only NO in airXConcentration exceedes the scope that atmospheric environment itself can be carried
When, can just cause environmental pollution.
Excessive NOXThere is intoxicating to act on people, NOXLung can be stimulated causes discomfort, and serious meeting causes cilium to come off, and glues
Film is denatured and peels off, and alveolar wall swelling ultimately results in expiratory dyspnea.Nitrogen dioxide is the Brown gas with penetrating odor,
Nitrogen dioxide seriously stimulates respiratory system, while the heart, liver, kidney to human body all have an impact.NO in airXNot only have to human body
Harm, also there is aggrieved effect to plant, is the one of the main reasons to form acid rain and acid mist, and photochemistry is formed with hydrocarbon
Smog, participation damage the ozone layer.
The current removing sulfuldioxide to nitrous oxides exhaust gas is broadly divided into the major class of dry and wet two.Dry method mainly includes catalysis
Reducing process, solid absorption method, plasma method etc., are primarily adapted for use in low-concentration nitrogen oxide system, such as vehicle exhaust, fuel combustion
Burn waste gas etc..Wet method then mainly by with water, diluted acid, aqueous slkali come the NO of reactive absorption high concentrationX.Dry denitration technology is past
Higher toward operating cost, wet denitration technology has that operation temperature is low, process equipment simple, less energy consumption, processing cost are low excellent
Gesture, but the solution existed after absorbing waste gas is difficult, easily causes the problem of secondary pollution.
At present, it is catalytic reduction method industrially to use more, such as patent US Patent 4,221,768, Swedish
Patent 8404840-4, US Patent 4,101,238, US Patent 4, the method disclosed in 048,112, but the method
Reaction need to consume substantial amounts of reducing agent.Temperature control is a key in another SCR flows, if temperature too low yield thing nitrate
Crystallization separates out the partial tube in meeting block system, if temperature is too high may to cause NH3Oxidation and produce more nitrogen oxidations
Thing.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, of the present utility model
One purpose is to propose a kind of nitrogen dioxide cycle absorption plant.
Included according to nitrogen dioxide cycle absorption plant of the present utility model：There is storage in storage room, the storage room
Chamber, the storage room is provided with air admission hole, the first venthole and the second venthole connected with the storage chamber；Vacuum occurs
Device, the vacuum generator is connected with first venthole；And absorption chamber, have for accommodating imidazoles sulphur in the absorption chamber
The absorbing cavity of hydrochlorate ionic liquid, the absorbing cavity is connected with second venthole.
According to nitrogen dioxide cycle absorption plant of the present utility model can fully, effectively absorb what is contained in gas
Nitrogen dioxide, and can running at room temperature, so that with high-selenium corn amount, low energy consumption, non-secondary pollution, efficent use of resources
Advantage.
In addition, can also have following additional technology special according to nitrogen dioxide cycle absorption plant of the present utility model
Levy：
The nitrogen dioxide cycle absorption plant further includes to have in air storage chamber, the air storage chamber to be used to store to wait to locate
The air storing cavity of the gas containing nitrogen dioxide of reason, the air storing cavity is connected with the air admission hole.
The air admission hole and first venthole are same hole, and the nitrogen dioxide cycle absorption plant is further wrapped
Include：First pipeline, the first end of first pipeline is connected with first venthole, the second end of first pipeline and institute
Vacuum generator is stated to be connected；Second pipeline, the first end of second pipeline is connected with the air storing cavity, second pipeline
Second end is connected with first pipeline；And first valve and the second valve, first valve is located at second pipeline
On, second valve is located on first pipeline, second valve be located at first pipeline first end with it is described
Between second end of the second pipeline.
The nitrogen dioxide cycle absorption plant is further included：3rd pipeline, the first end of the 3rd pipeline and institute
The connection of the second venthole is stated, the second end of the 3rd pipeline connects with the absorbing cavity；With the 3rd valve, the 3rd valve
It is located on the 3rd pipeline.
The nitrogen dioxide cycle absorption plant is further included：Pressure for detecting the pressure in the storage chamber is examined
Device is surveyed, the pressure detector is located in the storage room；For stirring the imidazole sulfonic acid ionic liquid in the absorbing cavity
Magnetic stirring apparatus；And water bath, the storage room and the absorption chamber are located in the water-bath room, wherein the water bath has
There is temperature controller.
The volume ratio of the storage chamber and the absorbing cavity is 2:1.
Brief description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined
Become substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the nitrogen dioxide cycle absorption plant according to the utility model embodiment；
Fig. 2 a are the absorption-regeneration figure of 1- ethyl-3-methylimidazole trifluoromethyl sulfonic acid ionic liquids；
Fig. 2 b are the absorption-regeneration figure of 1- butyl -3- methylimidazole trifluoromethyl sulfonic acid ionic liquids；
Fig. 2 c are the absorption-regeneration figure of 1- hexyl -3- methylimidazole trifluoromethyl sulfonic acid ionic liquids.
Nitrogen dioxide cycle absorption plant 10,
Storage room 110, storage chamber 111, air admission hole 112, the first venthole 113, the second venthole 114,
Vacuum generator 120,
Absorption chamber 130, absorbing cavity 131,
Air storage chamber 140, air storing cavity 141,
First pipeline 151, the second pipeline 152, the first valve 153, the second valve 154, the 3rd pipeline 155, the 3rd valve
156th, the 4th valve 157,
Magnetic stirring apparatus 161, water bath 162, temperature controller 163, pressure detector 164.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second " be only used for describe purpose, and it is not intended that indicate or
Imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", the spy of " second " are defined
Levying can express or implicitly include one or more this feature.In description of the present utility model, unless otherwise saying
Bright, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The nitrogen dioxide cycle absorption plant 10 according to the utility model embodiment is described below with reference to Fig. 1.Such as Fig. 1 institutes
Show, the nitrogen dioxide cycle absorption plant 10 according to the utility model embodiment includes storage room 110, the and of vacuum generator 120
Absorption chamber 130.
There is storage chamber 111, storage room 110 is provided with air admission hole 112, the connected with storage chamber 111 in storage room 110
One venthole 113 and the second venthole 114.Vacuum generator 120 is connected with the first venthole 113.Have in absorption chamber 130 and use
In the absorbing cavity 131 for accommodating imidazole sulfonic acid ionic liquid, absorbing cavity 131 is connected with the second venthole 114.In other words, absorb
Chamber 131 is connected by the second venthole 114 with storage chamber 111, and vacuum generator 120 passes through the first venthole 113 and storage chamber
111 connections, absorbing cavity 131 is connected by storage chamber 111 with vacuum generator 120.
The work of the nitrogen dioxide cycle absorption plant 10 according to the utility model embodiment is briefly described below with reference to Fig. 1
Make process.
First, storage chamber 111 and absorbing cavity 131 are vacuumized using vacuum generator 120, to make the He of storage chamber 111
Absorbing cavity 131 is in vacuum state or makes the pressure in the pressure and absorbing cavity 131 in storage chamber 111 less than or equal to default
Pressure.Advantageously, the pressure and absorbing cavity after storage chamber 111 and absorbing cavity 131 are in vacuum state or in storage chamber 111
Pressure in 131 is vacuumized to storage chamber 111 and absorbing cavity 131 and maintained for a period of time less than or equal to after preset pressure, continuing
（Such as five minutes）.
Then, to the gas containing nitrogen dioxide is filled with storage chamber 111, the gas is spread by the second venthole 114
To in absorbing cavity 131, so as to the imidazole sulfonic acid ionic liquid in absorbing cavity 131（Absorbent）Absorb the titanium dioxide in the gas
Nitrogen.After absorbing a period of time, the imidazole sulfonic acid ionic liquid is desorbed, the nitrogen dioxide for desorbing is high-purity
Nitrogen dioxide, imidazole sulfonic acid ionic liquid after desorption can continue on for absorbing the nitrogen dioxide in gas.Namely
Say, the imidazole sulfonic acid ionic liquid can be reused.
Finally, repeat the above steps, until the gas containing nitrogen dioxide is all disposed.
Nitrogen dioxide cycle absorption plant 10 according to the utility model embodiment is by setting what is connected with absorbing cavity 131
Storage chamber 111, such that it is able to accommodate the gas containing nitrogen dioxide using storage chamber 111, it is possible thereby to make in absorbing cavity 131
Imidazole sulfonic acid ionic liquid fully absorbs the nitrogen dioxide in the gas, until the imidazole sulfonic acid ionic liquid is to dioxy
The absorption for changing nitrogen reaches poised state.
Nitrogen dioxide cycle absorption plant 10 according to the utility model embodiment can fully, effectively absorb gas
In the nitrogen dioxide that contains, and can run at room temperature, so as to have high-selenium corn amount, low energy consumption, effectively non-secondary pollution, profit
The advantages of using resource.
The utility model additionally provides nitrogen dioxide cycle absorption process.According to the nitrogen dioxide of the utility model embodiment
Cyclic absorption method is comprised the following steps：
A）The nitrogen dioxide in the gas containing nitrogen dioxide is absorbed using imidazole sulfonic acid ionic liquid；
B）Nitrogen dioxide in desorption imidazole sulfonic acid ionic liquid；With
C）Repeat step A）With step B）.
Nitrogen dioxide cycle absorption process according to the utility model embodiment is by using the imidazole sulfonic acid salt ion liquid
Body absorbs the nitrogen dioxide in gas, so as to have the advantages that high-selenium corn amount, low energy consumption, non-secondary pollution, efficent use of resources.
The imidazole sulfonic acid ionic liquid purification efficiency is high, and in 60kPa, nitrogen dioxide is flat in the imidazole sulfonic acid ionic liquid
Equal uptake reaches 32.2mg/g, and the nitrogen dioxide of 15.7mL can be dissolved in the imidazole sulfonic acid ionic liquid equivalent to 1g
Calibrating gas, has compared with prior art and significantly improves.
And, the fusing point of the imidazole sulfonic acid ionic liquid is less than 15 DEG C, it is possible thereby to make the imidazole sulfonic acid salt ion liquid
Body exists within the scope of temperature very wide with liquid condition, so as to not only contribute to gas（Nitrogen dioxide）Absorption mass transfer,
And the imidazole sulfonic acid ionic liquid remains liquid before and after nitrogen dioxide gas are absorbed so that absorption process and desorption
Process easily realizes continuous operation.
Additionally, the nitrogen dioxide in the imidazole sulfonic acid ionic liquid is main with N2O4Form exist, and methyl alcohol and molten
The imidazole sulfonic acid ionic liquid for having solved nitrogen dioxide can form a galvanic cell.Therefore by using new according to this practicality
The nitrogen dioxide cycle absorption process of type embodiment carries out the collection and reaction of nitrogen dioxide, can apply to space flight and battery
On, so as to realize nitrous oxides exhaust gas reusing of energy source.
Nitrogen dioxide cycle absorption plant 10 and nitrogen dioxide cycle absorption process according to embodiments of the present invention can be used
Administered in the absorption of nitrogen dioxide, and the imidazole sulfonic acid ionic liquid can be recycled, i.e., the imidazole sulfonic acid salt from
Sub- liquid can carry out reversible absorption to nitrogen dioxide, so as to realize the trapping and concentration of nitrogen dioxide.The imidazole sulfonic acid salt from
Sub- liquid can allow the reaction for needing nitrogen dioxide to carry out can be complete in liquid phase as the carrier of nitrogen dioxide even catalyst
Into.
As shown in figure 1, the nitrogen dioxide cycle absorption plant 10 according to some embodiments of the present utility model includes storage
Room 110, vacuum generator 120（Such as vavuum pump）, absorption chamber 130, air storage chamber 140 and water bath 162.
There is the air storing cavity 141 for storing the pending gas containing nitrogen dioxide, storage room in air storage chamber 140
There is in 110 storage chamber 111, storage room 110 be provided with connected with storage chamber 111 air admission hole 112, the first venthole 113 and
Second venthole 114.Advantageously, the venthole 113 of air admission hole 112 and first is same hole.Thus storage can not only be reduced
The manufacture difficulty of room 110, and the sealing property of storage room 110 can be increased.
Vacuum generator 120 is connected by the first pipeline 151 with storage room 110, so as to using 120 pairs of storages of vacuum generator
Chamber 111 is deposited to vacuumize.Specifically, the first end of the first pipeline 151 is connected with the first venthole 113, and the of the first pipeline 151
Two ends are connected with vacuum generator 120.
As shown in figure 1, air storage chamber 140 is connected by the second pipeline 152 with storage room 110, so as to containing in air storing cavity 141
The gas for having nitrogen dioxide is entered into storage chamber 111 by the second pipeline 152.Specifically, the first end of the second pipeline 152
Connected with air storing cavity 141, the second end of the second pipeline 152 is connected with the first pipeline 151, to contain two in air storing cavity 141
The gas of nitrogen oxide passes through the second pipeline 152, the first pipeline 151 and air admission hole 112 with this（First venthole 113）Enter into storage
Deposit in chamber 111.
Wherein, the second pipeline 152 is provided with the first valve 153, and the first pipeline 151 is provided with the second valve 154, the second valve
Door 154 is located between the first end of the first pipeline 151 and the second end of the second pipeline 152, i.e., the second valve 154 is located at air admission hole
112（First venthole 113）Between the second pipeline 152.
As shown in figure 1, storage room 110 is connected by the 3rd pipeline 155 with absorption chamber 130, so as to containing in storage chamber 111
The gas for having nitrogen dioxide is entered into absorbing cavity 131 by the 3rd pipeline 155.Specifically, the first end of the 3rd pipeline 155
Connected with the second venthole 114, the second end of the 3rd pipeline 155 connects with absorbing cavity 131, wherein the 3rd pipeline 155 is provided with
3rd valve 156.Advantageously, the volume ratio of storage chamber 111 and absorbing cavity 131 is 2:1.
In one embodiment of the present utility model, as shown in figure 1, storage room 110 and absorption chamber 130 are located at water bath
In 162, to utilize water bath 162 to the imidazoles in the gas containing nitrogen dioxide and absorption chamber 130 in storage room 110
Sulfonate ion liquid carries out heating water bath.Advantageously, vacuum generator 120 is provided with for detecting the pressure in storage chamber 111
There is the pressure detector 164 of power, water bath 162 temperature controller 163 to contain two to better control in storage room 110
The temperature of the imidazole sulfonic acid ionic liquid in the temperature and absorption chamber 130 of the gas of nitrogen oxide.Additionally, in absorbing cavity 131
The magnetic stirring apparatus 161 for stirring the imidazole sulfonic acid ionic liquid is provided with, to accelerate the imidazole sulfonic acid ionic liquid
Absorb the speed of nitrogen dioxide.
In some examples of the present utility model, the imidazole sulfonic acid ionic liquid is selected from 1- ethyl-3-methylimidazoles three
Methyl fluoride sulfonate ion liquid（[EMIM]OTF）, 1- butyl -3- methylimidazole trifluoromethyl sulfonic acid ionic liquids
（[BMIM]OTF）With 1- hexyl -3- methylimidazole trifluoromethyl sulfonic acid ionic liquids（[HMIM]OTF）In at least one.
The nitrogen dioxide cycle absorption process according to the utility model embodiment is described below with reference to Fig. 1 and Fig. 2 a-2c.
First, close the first valve 153 and open the second valve 154 and the 3rd valve 156, using vacuum generator 120
Storage chamber 111 and absorbing cavity 131 are vacuumized.After storage chamber 111 and absorbing cavity 131 are in vacuum state or storage chamber 111
Pressure in interior pressure and absorbing cavity 131 less than or equal to after preset pressure, to storage chamber 111 and absorbing cavity 131 take out by continuation
Vacuum simultaneously maintains a period of time（Such as five minutes）.
Then, close the 3rd valve 156 and open the first valve 153 and the second valve 154, to make in air storing cavity 141
The gas containing nitrogen dioxide enter into storage chamber 111, until the pressure in storage chamber 111 reaches preset value.Advantageously,
The preset value is 5kPa-80kPa.
As shown in figure 1, in an example of the present utility model, nitrogen dioxide cycle absorption plant 10 further includes
Four valves 157, the 4th valve 157 is located on the first pipeline 151, the 4th valve 157 be located at the second end of the second pipeline 152 with it is true
Between empty generator 120.Wherein, when being passed through the gas containing nitrogen dioxide in storage chamber 111, the 3rd valve 156 is closed
With the 4th valve 157 and opening the first valve 153 and the second valve 154.
Then, the first valve 153, the second valve 154 and the 4th valve 157 are closed and the 3rd valve 156 is opened to make
Absorbing cavity 131 is connected with storage chamber 111, and thus the gas containing nitrogen dioxide in storage chamber 111 is entered by the 3rd pipeline 155
Enter in absorbing cavity 131, the imidazole sulfonic acid ionic liquid in absorbing cavity 131 starts to absorb the nitrogen dioxide in the gas.When
The detected value of pressure detector 164（Reading）When no longer changing, i.e., when the pressure in storage chamber 111 no longer changes, the imidazoles sulphur
Absorption of the hydrochlorate ionic liquid to nitrogen dioxide reaches balance.
Wherein, during nitrogen dioxide is absorbed using the imidazole sulfonic acid ionic liquid, using magnetic stirring apparatus 161
The imidazole sulfonic acid ionic liquid in stirring absorbing cavity 131, and storage room 110 and absorption chamber 130 are entered using water bath 162
Row heating, so as to by the temperature of the imidazole sulfonic acid ionic liquid and should the temperature of the gas containing nitrogen dioxide be heated to the
One preset temperature.Advantageously, first preset temperature is 20 DEG C -80 DEG C.
Then, the nitrogen dioxide in the imidazole sulfonic acid ionic liquid is desorbed.Specifically, close the first valve 153 and
The second valve 154, the 3rd valve 15 and the 4th valve 157 are opened, using vacuum generator 120 to storage chamber 111 and absorbing cavity
131 vacuumize, and storage room 110 and absorption chamber 130 are heated using water bath 162, so as to by the imidazole sulfonic acid salt ion
The temperature of liquid is heated to the second preset temperature, so that the nitrogen dioxide in the imidazole sulfonic acid ionic liquid is desorbed, until inhaling
The quality for receiving room 130 no longer changes.Advantageously, second preset temperature is 20 DEG C -100 DEG C.
Advantageously, absorbing cavity 131 is connected by muffler with air storing cavity 141, and the muffler is provided with air pump, wherein in solution
Before inhaling the nitrogen dioxide in the imidazole sulfonic acid ionic liquid, air pump is first passed through by the gas in storage room 110 and absorption chamber 130
Body is delivered back into air storage chamber 140.
By desorbing the nitrogen dioxide in the imidazole sulfonic acid ionic liquid, such that it is able to realize the imidazole sulfonic acid salt ion
Liquid recycle and nitrogen dioxide gas recovery.And, by depressurizing, the method for heating up desorbs the imidazole sulfonic acid salt
Nitrogen dioxide in ionic liquid, i.e., desorb the nitrogen dioxide in the imidazole sulfonic acid ionic liquid using high temperature and vacuum aided
（The reversible absorption of the imidazole sulfonic acid ionic liquid）, such that it is able to make the imidazole sulfonic acid ionic liquid that there is molecular engram,
The amount that the imidazole sulfonic acid ionic liquid after desorbing reabsorbs nitrogen dioxide will be apparently higher than the imidazole sulfonic acid salt ion
Liquid absorbs the amount of nitrogen dioxide first, it is to avoid the wasting of resources.
Finally, repeat the above steps, until the gas treatment containing nitrogen dioxide in air storing cavity 141 is finished.
In utility model, by different initial pressure（Initial pressure i.e. in storage chamber 111, that is, the preset value）
Under absorption curve characterize solubility of the nitrogen dioxide in the imidazole sulfonic acid ionic liquid, it has been found that unit mass
（g）The imidazole sulfonic acid ionic liquid in the amount of nitrogen dioxide that is dissolved（mol）It is linear with the initial pressure, and
Obtain linear equation：
It is P0=0.46 CNO in [EMIM] OTF2-2.28(R2=0.95)
It is P0=0.61CNO in [BMIM] OTF2–4.05(R2=0.99)
It is the CNO of P0=0.67 in [HMIM] OTF2–5.00(R2=0.98)
This simple linear relationship meets Henry's law, imply that in absorption process, is not sent out between solute and solvent
Raw complicated chemical reaction.
In the utility model, in the imidazole sulfonic acid ionic liquid, NO2Mainly with N2O4Form exist, and and miaow
Azoles cation group is had an effect, and the ultraviolet spectra, infrared spectrum and temperature obtained by experiment-pressure graph of a relation are all demonstrate,proved well
Understand this point.
Embodiment 1
First, close the first valve 153 and open the second valve 154, the 3rd valve 156 and the 4th valve 157, using true
Storage chamber 111 and absorbing cavity 131 are evacuated to vacuum and maintained five minutes by empty generator 120.
Then, the 3rd valve 156 and the 4th valve 157 are closed and the first valve 153 and the second valve 154 is opened, makes storage
The gas containing nitrogen dioxide in air cavity 141 is entered into storage chamber 111, until the pressure in storage chamber 111 reaches
40kPa。
Then, the first valve 153, the second valve 154 and the 4th valve 157 are closed and the 3rd valve 156 is opened to make
Absorbing cavity 131 is connected with storage chamber 111, using the 1- ethyl-3-methylimidazole trifluoromethyl sulfonic acid ions in absorbing cavity 131
Liquid ([EMIM] OTF) absorbs the nitrogen dioxide in the gas.After about 100 seconds, the reading of pressure detector 164 no longer declines
When, absorption reaches balance, and equilibrium pressure is 25kPa.Wherein, in absorption process, storage room 110 and absorption chamber 130 are using permanent
Tepidarium keeps 35 DEG C of design temperature, and by magnetic stirring apparatus 161 to the 1- ethyl-3-methylimidazoles three in absorbing cavity 131
Methyl fluoride sulfonate ion liquid is stirred.
Then, close the first valve 153 and open the second valve 154, the 3rd valve 15 and the 4th valve 157, using true
Empty generator 120 is vacuumized to storage chamber 111 and absorbing cavity 131, is added storage room 110 and absorption chamber 130 using water bath 162
Heat is desorbed to 65 DEG C.The 1- ethyl-3-methylimidazole trifluoromethane sulfonic acids being recycled when 130 constant mass of absorption chamber
Ionic liquid, continues to apply to absorption process next time.Wherein, second absorption equilibrium time is 130 seconds, equilibrium pressure
It is 21kPa, NO2Uptake in [EMIM] OTF increased.
Embodiment 2
First, close the first valve 153 and open the second valve 154, the 3rd valve 156 and the 4th valve 157, using true
Storage chamber 111 and absorbing cavity 131 are evacuated to vacuum and maintained five minutes by empty generator 120.
Then, the 3rd valve 156 and the 4th valve 157 are closed and the first valve 153 and the second valve 154 is opened, makes storage
The gas containing nitrogen dioxide in air cavity 141 is entered into storage chamber 111, until the pressure in storage chamber 111 reaches
40kPa。
Then, the first valve 153, the second valve 154 and the 4th valve 157 are closed and the 3rd valve 156 is opened to make
Absorbing cavity 131 is connected with storage chamber 111, using the 1- butyl -3- methylimidazole trifluoromethyl sulfonic acid ions in absorbing cavity 131
Liquid ([BMIM] OTF) absorbs the nitrogen dioxide in the gas.After about 100 seconds, the reading of pressure detector 164 no longer declines
When, absorption reaches balance, and equilibrium pressure is 24kPa.Wherein, in absorption process, storage room 110 and absorption chamber 130 are using permanent
Tepidarium keeps 20 DEG C of design temperature, and by magnetic stirring apparatus 161 to the 1- butyl -3- methylimidazoles three in absorbing cavity 131
Methyl fluoride sulfonate ion liquid is stirred.
Then, close the first valve 153 and open the second valve 154, the 3rd valve 15 and the 4th valve 157, using true
Empty generator 120 is vacuumized to storage chamber 111 and absorbing cavity 131, is added storage room 110 and absorption chamber 130 using water bath 162
Heat is desorbed to 20 DEG C.1- butyl -3- methylimidazole the trifluoromethane sulfonic acids being recycled when 130 constant mass of absorption chamber
Ionic liquid, continues to apply to absorption process next time.Wherein, second absorption equilibrium time is 175 seconds, equilibrium pressure
It is 20kPa, NO2Uptake in [BMIM] OTF increased.
Embodiment 3
First, close the first valve 153 and open the second valve 154, the 3rd valve 156 and the 4th valve 157, using true
Storage chamber 111 and absorbing cavity 131 are evacuated to vacuum and maintained five minutes by empty generator 120.
Then, the 3rd valve 156 and the 4th valve 157 are closed and the first valve 153 and the second valve 154 is opened, makes storage
The gas containing nitrogen dioxide in air cavity 141 is entered into storage chamber 111, until the pressure in storage chamber 111 reaches
40kPa。
Then, the first valve 153, the second valve 154 and the 4th valve 157 are closed and the 3rd valve 156 is opened to make
Absorbing cavity 131 is connected with storage chamber 111, using the 1- hexyl -3- methylimidazole trifluoromethyl sulfonic acid ions in absorbing cavity 131
Liquid ([HMIM] OTF) absorbs the nitrogen dioxide in the gas.After about 280 seconds, the reading of pressure detector 164 no longer declines
When, absorption reaches balance, and equilibrium pressure is 21kPa.Wherein, in absorption process, storage room 110 and absorption chamber 130 are using permanent
Tepidarium keeps 80 DEG C of design temperature, and by magnetic stirring apparatus 161 to the 1- hexyl -3- methylimidazoles three in absorbing cavity 131
Methyl fluoride sulfonate ion liquid is stirred.
Then, close the first valve 153 and open the second valve 154, the 3rd valve 15 and the 4th valve 157, using true
Empty generator 120 is vacuumized to storage chamber 111 and absorbing cavity 131, is added storage room 110 and absorption chamber 130 using water bath 162
Heat is desorbed to 100 DEG C.1- hexyl -3- methylimidazole trifluoromethyl the sulphurs being recycled when 130 constant mass of absorption chamber
Hydrochlorate ionic liquid, continues to apply to absorption process next time.Wherein, second absorption equilibrium time is 450 seconds, balance pressure
It is by force 15kPa, NO2Uptake in [HMIM] OTF increased.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can in an appropriate manner be combined in one or more any embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
In the case where principle of the present utility model and objective is not departed from various changes, modification, replacement can be carried out to these embodiments
And modification, scope of the present utility model limits by claim and its equivalent.
Claims (6)
1. a kind of nitrogen dioxide cycle absorption plant, it is characterised in that including：
Storage room, has storage chamber in the storage room, and the storage room is provided with air admission hole, the connected with the storage chamber
One venthole and the second venthole；
Vacuum generator, the vacuum generator is connected with first venthole；With
There is the absorbing cavity for accommodating imidazole sulfonic acid ionic liquid, the absorbing cavity and institute in absorption chamber, the absorption chamber
State the connection of the second venthole.
2. nitrogen dioxide cycle absorption plant according to claim 1, it is characterised in that further include air storage chamber, institute
State the air storing cavity having in air storage chamber for storing the pending gas containing nitrogen dioxide, the air storing cavity and the air inlet
Hole connects.
3. nitrogen dioxide cycle absorption plant according to claim 1, it is characterised in that the air admission hole and described first
Venthole is same hole, and the nitrogen dioxide cycle absorption plant is further included：
First pipeline, the first end of first pipeline is connected with first venthole, the second end of first pipeline with
The vacuum generator is connected；
Second pipeline, the first end of second pipeline is connected with the air storing cavity, the second end of second pipeline with it is described
First pipeline is connected；And
First valve and the second valve, first valve are located on second pipeline, and second valve is located at described
On one pipeline, second valve is located between the first end of first pipeline and the second end of second pipeline.
4. nitrogen dioxide cycle absorption plant according to claim 1, it is characterised in that further include：
3rd pipeline, the first end of the 3rd pipeline is connected with second venthole, the second end of the 3rd pipeline with
The absorbing cavity connection；With
3rd valve, the 3rd valve is located on the 3rd pipeline.
5. nitrogen dioxide cycle absorption plant according to claim 1, it is characterised in that further include：
Pressure detector for detecting the pressure in the storage chamber, the pressure detector is located in the storage room；
Magnetic stirring apparatus for stirring the imidazole sulfonic acid ionic liquid in the absorbing cavity；With
Water bath, the storage room and the absorption chamber are located in the water-bath room, wherein the water bath has temperature control
Device.
6. nitrogen dioxide cycle absorption plant according to claim 1, it is characterised in that the storage chamber and the absorption
The volume ratio in chamber is 2:1.
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| CN106474883A (en) * | 2016-11-29 | 2017-03-08 | 南京大学 | Nitrogen dioxide cycle absorption plant and nitrogen dioxide cycle absorption process |
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| CN106474883A (en) * | 2016-11-29 | 2017-03-08 | 南京大学 | Nitrogen dioxide cycle absorption plant and nitrogen dioxide cycle absorption process |
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