CN107983082A - A kind of graphene absorption sponge and device - Google Patents
A kind of graphene absorption sponge and device Download PDFInfo
- Publication number
- CN107983082A CN107983082A CN201610943726.8A CN201610943726A CN107983082A CN 107983082 A CN107983082 A CN 107983082A CN 201610943726 A CN201610943726 A CN 201610943726A CN 107983082 A CN107983082 A CN 107983082A
- Authority
- CN
- China
- Prior art keywords
- graphene
- graphene sponge
- sponge
- gas
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
Abstract
The present invention overcomes existing oil suction technology adsorption low, is not easily recycled the deficiency utilized mostly, there is provided a kind of technical solution for eliminating Oil in circulating gas dirt.The program is made of graphene sponge cylinder and air inlet stent, filler used in graphene sponge cylinder is the graphene sponge of oil suction, barrel is industrial wool felt, inside uses graphene sponge or graphene sponge compound, is recycled by way of being filler heating come the separation of real graphene sponge or graphene sponge compound and adsorbent.
Description
Technical field
The invention belongs to pollutant catabolic gene field, technical field of air pollution control is especially belonged to.
Background technology
The gas form of volatile organic matter and various oily substances can cause to cause air serious pollution, such as
Automobile discharge can not air pollution of the clean-burning tail gas to atmosphere and compartment it is very serious, usually we remove this
The main means of two kinds of polluters are chemisorbed and physical absorption and condensation three kinds of technologies of absorption method.Condense absorption method：
Organic exhaust gas is introduced directly into condenser through adsorbing, absorbing, solving plate, separation, recyclable valuable organic matter, the method is suitable for
The operating mode that organic exhaust gas concentration is high, temperature is low, air quantity is small is, it is necessary to which attached freezing equipment, is mainly used in chemical industry.For thing
Reason absorption, usually we use activated carbon mouth adsorbent, although activated carbon adsorption capacity by force there are secondary use difficulty greatly
Problem, because we using the method for hot wind stripping if it is desired to easily make activated carbon catch fire, moreover we are first in this way
Hot wind is obtained, it is bigger to the demand of the energy in itself so that the utilization rate of the energy is than relatively low.For chemiadsorption, refer to
Be catalytic purification method, also need outside the energy pollutant in the reactors such as catalytic bed is heated to it is suitable anti-
Temperature is answered, equally brings the problem of energy utilization rate is low.
Graphene is a kind of new material of new bi-dimensional cellular shape.It is known today most thin and possesses larger intensity
Superpower conductive capability material, and possess extremely strong conductive capability, and possess higher hardness and good ductility energy
（Geim, A.K.science 2009,324,1530-4）.
Wu Ying rocs et al. prepare a kind of oleophylic with the method that alcohol is replaced and possess the grapheme material for having more hollow structures.Tool
The grapheme material of standby more hollow structures is named as graphene sponge, and graphene sponge, which possesses pore passage structure, to be enriched, and aperture is easy
In control, the characteristics of specific surface area is high, make its adsorption function to oils very strong（nature communications 6-
6141）.Obtained graphene sponge can be adsorbed onto the materials such as the oils of 190 times of weight of highest itself.It is big in current industrial
It is asphalt felt to measure the oil absorption material used, is also industrial wool.The technique for the graphene oxide being prepared at present is very perfect,
This prepares graphene sponge for us and provides possibility on a large scale.
The ignition point of graphene sponge is higher, and possesses superpower oil absorption.For graphene sponge in itself and
Say that it has superpower oil absorption and preferable two advantages of electric conductivity concurrently, graphene bubble can be heated by being passed through electric current
The material adsorbed in foam act as fertile absorber or by activation of catalyst by adsorbent, has energy saving and efficiently and can
The advantages of recycling.It is a brand-new direction that graphene sponge is applied to greasy dirt field of purification.
The content of the invention
1. the present invention overcomes existing oil suction technology adsorption low, the deficiency utilized is not easily recycled mostly, there is provided a kind of
Eliminate the purification techniques of industrial waste gas greasy dirt, life greasy dirt gas or vehicle exhaust.
2. reaction unit is made of graphene sponge cylinder and air inlet stent, filler used in graphene sponge cylinder is oil suction
Graphene sponge, barrel is industrial wool felt, and inside uses graphene sponge or graphene sponge compound, by being filler
The separation that the mode of heating comes real graphene sponge or graphene sponge compound and adsorbent recycles.
3. original material prepared by graphene sponge is the flaky graphite powder more than 100 mesh.
4. reaction unit preparation process process is as follows：
（1）The preparation of graphene sponge：Using alcohol displacement method come the superior graphene sponge of processability.It is preferred that the squama of 1000 mesh
Flake graphite, graphite oxide is prepared by improved Hummers methods, and graphite oxide is obtained graphite oxide through ultrasound stripping
Alkene solution.The water in graphene solution is replaced with ethylene glycol afterwards, the second that concentration is 1-15mg/ml graphene oxides is prepared
Glycol dispersion liquid, this step ensure anhydrous presence in ethylene glycol dispersion liquid.Solution is placed in afterwards and is lined with polytetrafluoroethylene (PTFE)
Reaction kettle in 180 DEG C of effect 24h, then with water the ethanol replacement after reaction is come out, after freeze-drying under a shielding gas
Graphene sponge through 350 DEG C of calcinings.
（2）Two layers industrial wool and graphene sponge or the novel graphite alkene sponge for being loaded with effective catalyst is compound
Thing sandwiches the material of shape, wherein up and down two layers be industrial wool, interlayer is grapheme foam or is loaded with efficiently urging
The novel graphite alkene sponge compound of agent.A certain number of motors for having power supply are placed in inside reactor afterwards, then will be made
The material obtained is rolled is made grapheme foam cylinder according to set specification and fixation.Guiding is connected with our reactor leading portion
The power set that air enters.
5. the work step and principle of the device are as follows:
（1）The present apparatus can be purified greasy dirt gas or air by two processes of chemisorbed and physical absorption.
In the link of work, first holding electrode is off, but reactor is under room temperature state, and power is poured in by gas
Greasy dirt gas or contaminant gases are imported into reactor by device so that gas can pass through the cylinder of graphene sponge cylinder
Wall, after saturation to be adsorbed, will be discharged to outdoor, or other devices by the gas of graphene sponge barrel.
（2）The step of recycling is to carry out mechanical removal to the pollutant in graphene sponge barrel first, is adsorbed
Material be switched on electrode so that inside heating, realizes that graphene sponge or graphene sponge are answered after reaching suitable temperature
The regeneration of compound.Can be effectively graphene sponge or load after electrode is powered during chemisorbed
The temperature for having the novel graphite alkene sponge compound of effective catalyst gets a promotion, realize catalyst activation or greasy dirt with
Graphene sponge or graphene sponge compound efficiently separate, after realizing the recycling of reaction unit.
Compared to the prior art the present invention has following excellent effect：
（1）The adsorbance of graphene sponge can reach 190 times of its own weight.Repeat usage can exceed that 350 times（350
Secondary successor can be used, but efficiency can be less than 80%）.
（2）The active ingredient of graphene sponge load is very extensive, can be tin oxide, zinc oxide, titanium dioxide, titanium dioxide
One or several kinds of combinations of silicon, platinum, gold, copper, cupric oxide, cadmium, chromium oxide, cadmium sulfide, zirconium, tin titanium, metal sulphide.
（3）Accessible pollutant kind is very much, volatile organic pollution and oil gas refer mainly to refer to alcohols, ketone,
Phenols, aldehydes, esters, amine, aromatic substance, greasy dirt organic exhaust gas, resin organic exhaust gas, coating cloud organic exhaust gas, styrene
The materials such as organic exhaust gas, additive organic exhaust gas.
（4）Recycling is that the energy source device used is easier to obtain, and power supply is 220V alternating-current power supplies.
Brief description of the drawings
Fig. 1 reaction unit figures.
Fig. 2 graphene sponge cylinders.
Fig. 3 is air evolution flow chart.
Embodiment
Embodiment 1
Using alcohol displacement method come the superior graphene sponge of processability.It is preferred that the flaky graphite of 1000 mesh, by improved
Graphite oxide is prepared in Hummers methods, and graphite oxide is obtained graphene oxide solution through ultrasound stripping.Come afterwards with ethylene glycol
The water in graphene solution is replaced, the ethylene glycol dispersion liquid that concentration is 1.5mg/ml graphene oxides is prepared, this step is true
Protect anhydrous presence in ethylene glycol dispersion liquid.Solution is placed in afterwards in the reaction kettle for be lined with polytetrafluoroethylene (PTFE) and 180 DEG C of works
The ethanol replacement after reaction is come out with 24h, then with water, the graphene sponge through 350 DEG C of calcinings after freeze-drying.
Embodiment 2
Reaction process is as shown in Figure 3.The main filtration device of reactor is mainly made of graphene sponge, graphene sponge or
Graphene sponge compound is as adsorbent.The aperture of graphene sponge can reach 10-600 μm, and the aperture of endoporus is by stone
Black alkene foam prepare raw material and reaction condition together decides on, can control at 5-300 μm under normal circumstances, specific surface area can
To reach 1200 m2 /g_1 Conductive capability can reach 0.87 S cm_1 .The volume of whole reaction unit is 1000ml.Air
Pollutant be kitchen edible oil greasy dirt, concentration is about 280 ㎎/m3.Air pours in power set by gas with 3 L/min
Speed be passed into reactor, after question response 0.5h, 0.5mg/m is less than by the air concentration of grapheme foam wall3.Will be anti-
Answer the end of device to be passed through high-temperature incinerator or be connected to outdoor, achieve the purpose that air purification, after inside graphene sponge cylinder
It is powered by the oily waste degradation of throttling, and by electrode, the grapheme foam heating for being reaches 160 DEG C, and base can be by the stone after 20min
Black alkene sponge cylinder recycles.
Embodiment 3
Reaction process is as shown in Figure 3.The main filtration device of reactor is mainly made of graphene sponge load zinc oxide, graphite
Alkene sponge is loaded with the composite catalyst of zinc oxide as adsorbent.The aperture of graphene sponge can reach 300-400 μm, interior
The aperture in hole be by graphene sponge prepare raw material and reaction condition together decides on, can control in 50- under normal circumstances
100 μm, specific surface area can reach 1080 m2 /g_1 Conductive capability can reach 0.67 S cm_1 .Whole reaction unit
Volume is 1000ml.The pollutant of air is formaldehyde gas in finishing, and concentration is about 130 ㎎/m3.Air pours in power set
Gas is passed into reactor with the speed of 3 L/min, after question response 0.5h, the air concentration by grapheme foam wall is small
In 0.2mg/m3.The end of reactor is passed through to the material being connected in outdoor and recovery cylinder, is incited somebody to action after achieving the purpose that air purification
Electrode is powered, and the grapheme foam heating for being reaches 160 DEG C, and base can recycle the grapheme foam cylinder after 20min.
Claims (8)
1. a kind of method for purifying the volatile organic gas of greasy dirt gas and part in life, has following necessary special
Sign：
Step 1：Greasy dirt gas and special volatile organic gas pour in device by gas and are passed through in reactor, with graphite
Alkene sponge cylinder comes into full contact with and realizes the purification of gas, and the graphene sponge cylinder in reactor is grapheme foam or is loaded with
Tubular article of the graphene sponge of effective catalyst prepared by with industrial wool felt；
Step 2：Make graphene sponge cylinder circulation profit by being realized to the cleaning to graphene sponge cylinder inner wall and electrified regulation
With.
2. gas and oil separating plant underlying carrier according to claim 1 is graphene sponge cylinder, its constitutive characteristic is, institute
The oil-gas separating filter element prepared based on graphene sponge material is stated to be collectively constituted by air inlet stent and graphene sponge cylinder；The party
Case possesses following indispensable essential characteristic：
（1）The preparation of graphene sponge：Using alcohol displacement method come the superior graphene sponge of processability；It is preferred that the squama of 1000 mesh
Flake graphite, graphite oxide is prepared by improved Hummers methods, and graphite oxide is obtained graphite oxide through ultrasound stripping
Alkene solution；The water in graphene solution is replaced with ethylene glycol afterwards, the second that concentration is 1-15mg/ml graphene oxides is prepared
Glycol dispersion liquid, this step ensure anhydrous presence in ethylene glycol dispersion liquid；Solution is placed in afterwards and is lined with polytetrafluoroethylene (PTFE)
Reaction kettle in 180 DEG C of effect 24h, then with acetone and water the ethanol after reaction is rallentando cemented out, freezing is dry
Graphene sponge after dry under nitrogen atmosphere through 350 DEG C of calcinings；
（2）The selection of blotter coat：Graphene sponge cylinder filler is industrial wool felt and graphene sponge filler, or negative
The graphene-based material of multiple catalysts is carried, two kinds of materials can adsorb oily pollutant；
（3）Blotter coat is rolled into corresponding tubular and fixed-type according to the size of reactor, is graphene sponge cylinder；
（4）Graphene sponge cylinder is inserted into reactor, that is, forms whole reaction unit.
3. method as claimed in claim 2, the ionization to graphene sponge modifies or prepares graphene sea with hydro-thermal method
Continuous compound is characterized in that can be to before sponge be prepared, or is prepared and carried out after sponge；Modification group selects as needed
Select, the active ingredient of graphene sponge load can be tin oxide, zinc oxide, titanium dioxide, silica, platinum, gold, copper, oxygen
Change one or several kinds of combinations of copper, cadmium, chromium oxide, cadmium sulfide, zirconium, tin titanium, metal sulphide.
4. method as claimed in claim 2, it is characterised in that the inner cylinder of reaction unit is the graphite using industrial wool felt as barrel
Alkene sponge or the tubular article that graphene-based composite material is interior charges.
5. the method as described in claim 1, it is characterised in that greasy dirt gas or volatile organic matter gas are passing through graphite
Adsorbed during alkene sponge cylinder, the pollutant of graphene sponge inner tube wall can by mechanically decoupled, the absorption of graphene sponge cylinder
Material can be by way of electrified regulation（Suitable according to itself of graphene sponge or graphene complex Attributions selection
Temperature）Realize recycling for graphene sponge cylinder.
6. method as claimed in claim 3, it is characterised in that volatile organic pollution and oil gas be primarily referred to as alcohols,
Ketone, phenols, aldehydes, esters, amine, aromatic substance, life greasy dirt organic exhaust gas, resin organic exhaust gas, coating cloud organic waste
The materials such as gas, styrene organic exhaust gas, additive organic exhaust gas.
7. graphene sponge（30 times before recycling）To the adsorption efficiency before organic pollution gas be more than 90%.
8. the graphene sponge cylinder in reactor is flexibly positioned in reactor, is replaced or recycled according to service condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943726.8A CN107983082A (en) | 2016-10-26 | 2016-10-26 | A kind of graphene absorption sponge and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943726.8A CN107983082A (en) | 2016-10-26 | 2016-10-26 | A kind of graphene absorption sponge and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107983082A true CN107983082A (en) | 2018-05-04 |
Family
ID=62028939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610943726.8A Pending CN107983082A (en) | 2016-10-26 | 2016-10-26 | A kind of graphene absorption sponge and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107983082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749125A (en) * | 2018-12-28 | 2019-05-14 | 常州华科聚合物股份有限公司 | A kind of modified graphene styrene volatilization inhibitor composition and preparation method thereof |
| CN112029142A (en) * | 2020-08-06 | 2020-12-04 | 武汉工程大学 | Preparation method of oil-absorbing hydrophobic sponge and oil-absorbing hydrophobic sponge prepared by same |
-
2016
- 2016-10-26 CN CN201610943726.8A patent/CN107983082A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109749125A (en) * | 2018-12-28 | 2019-05-14 | 常州华科聚合物股份有限公司 | A kind of modified graphene styrene volatilization inhibitor composition and preparation method thereof |
| CN109749125B (en) * | 2018-12-28 | 2021-04-27 | 常州华科聚合物股份有限公司 | Modified graphene styrene volatilization inhibitor composition and preparation method thereof |
| CN112029142A (en) * | 2020-08-06 | 2020-12-04 | 武汉工程大学 | Preparation method of oil-absorbing hydrophobic sponge and oil-absorbing hydrophobic sponge prepared by same |
| CN112029142B (en) * | 2020-08-06 | 2022-08-16 | 武汉工程大学 | Preparation method of oil-absorbing hydrophobic sponge and oil-absorbing hydrophobic sponge prepared by same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Preparation of magnetic Co-Fe modified porous carbon from agricultural wastes by microwave and steam activation for mercury removal | |
| CN101288820B (en) | Active carbon fiber organic gas recovery method and system using nitrogen as desorption medium | |
| CN104524929A (en) | Efficient energy-saving purification and recovery process of tail gas containing volatile organic compounds (VOCs) | |
| CN102091514B (en) | Device and method for treating obnoxious gas and industrial VOCs | |
| CN102872671B (en) | Asphalt waste gas purifying method and device | |
| CN101791506B (en) | Industrial organic exhaust gas active-carbon bed plasma integrated purification technology and device thereof | |
| CN110092518B (en) | System and method for treating wastewater containing organic matters and preparing carbon nano material by adsorption method | |
| CN106807177A (en) | The gas cleaning plant and purification method of a kind of removing VOCs | |
| CN100364643C (en) | Method and device for absorbing, recovering and purifying organic from exhaust gas | |
| CN103691251A (en) | Method for adsorbing and decomposing organic waste gas through graphene | |
| CN103252223A (en) | Method for regenerating saturated active carbon adsorbing organic matters through microwave activation of potassium persulfate | |
| CN202876599U (en) | Purifying device of asphalt waste gas | |
| CN101219919A (en) | Method for purifying and recycling methyl hydride from garbage landfill gas | |
| CN102814103A (en) | Four-stage sludge drying tail gas treatment system | |
| CN107983082A (en) | A kind of graphene absorption sponge and device | |
| CN202754969U (en) | Garbage pyrolysis coal gas desulfuration dedusting tar-removing dioxin-removing deodorization tower | |
| CN102869441A (en) | Method and device for treating gas discharged from a carbon dioxide recovery device | |
| CN102476048A (en) | In-situ regeneration method of active carbon fiber for treating gaseous pollutant | |
| CN105457615A (en) | Preparation method of Mn modified metal organic framework material adsorbent for super-deep oil and gas recovery | |
| Wang et al. | Electrothermal catalysis for heterogeneous reaction: Mechanisms and design strategies | |
| CN205216530U (en) | Purification device of asphalt gas | |
| CN102476013A (en) | Novel organic waste gas recovery method and system | |
| CN101664626A (en) | Method for treating industrial organic waste gases | |
| CN108745328B (en) | Regeneration method of volatile organic pollutant adsorbent | |
| CN109603424A (en) | A kind of renewable method and device thereof dusted except VOCs |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180504 |
|
| WD01 | Invention patent application deemed withdrawn after publication |