CN108310948A - The absorption plant and absorption process of acetone contained by a kind of exhaust gas - Google Patents
The absorption plant and absorption process of acetone contained by a kind of exhaust gas Download PDFInfo
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- CN108310948A CN108310948A CN201810208085.0A CN201810208085A CN108310948A CN 108310948 A CN108310948 A CN 108310948A CN 201810208085 A CN201810208085 A CN 201810208085A CN 108310948 A CN108310948 A CN 108310948A
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- absorption
- absorption tower
- acetone
- bubbled
- deflector
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- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- 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
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to the absorption plants and absorption process of acetone contained by a kind of exhaust gas, entered by absorption tower inlet using deionized water as absorbent, it is sprayed in absorption tower by spray thrower, VLA gases containing acetone are inputted by the air inlet pipe of absorption tower lower part, enter absorption tower by VLA coolers, it contacts with each other and reacts with deionized water, vibration is equipped in absorption tower and is bubbled deflector, so that acetone is come into full contact with absorbent and reacts.And absorption cleaning acetone is cooperateed with using ultraviolet lamp, the gas after reaction is discharged after the membranaceous absorbed layer double absorption of graphene from the escape pipe on absorption tower top.The present invention has the advantage that easy to operate, safe and reliable, high-absorbility, non-secondary pollution and the acetone of absorption are easily further processed or recycle, and there is high utilization and extention to be worth.
Description
Technical field
The present invention relates to technical field of waste gas treatment, especially a kind of to give the acetone contained in exhaust gas to recycling
Absorption plant and absorption process.
Background technology
Acetone is heavily used for chemical process as a kind of good organic solvent, especially in pharmaceuticals industry and
It has a wide range of applications in acetate fiber industry.Since the boiling point of acetone is relatively low, high volatility, so acetone is largely present in life
In the exhaust gas that production process generates, environmental and human health impacts are caused great harm, national governments have all formulated corresponding regulation,
Limit the discharge of acetone.Acetone in exhaust gas is recycled, can qualified discharge, the pollution to environment and human body can be mitigated
Injury, while the consumption of acetone can also be reduced, save operating cost.
Current energy shortages, energy-saving and emission-reduction are very urgent, for the problem of high energy consumption, developing new low energy in traditional handicraft
Work consuming skill is the task of top priority.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome the deficiencies in the existing technology, the present invention provides a kind of
The technical solution adopted by the present invention to solve the technical problems is：The absorption plant of acetone contained by a kind of exhaust gas, packet
Absorption tower is included, air inlet pipe is installed on absorb the bottom of the tower side wall, absorption tower tower top is equipped with escape pipe, the pipe of the air inlet pipe
Road is equipped with VLA coolers, and spacing is equipped with one end and absorbs the fixed vibration bubbling deflector of tower side wall in absorption tower, is located at
The vibration, which is bubbled the deflector other end and absorbs, is equipped with ultraviolet lamp above the gap location between tower side wall, below the roof of absorption tower
Equipped with the membranaceous absorbed layer of at least one layer of graphene, it is equipped with to be bubbled on deflector to the vibration below the membranaceous absorbed layer of graphene and sprays
The spray thrower of ion water absorbent is shot, there is the absorption tower side wall upper part inlet of connection spray thrower, bottom to have
The liquid outlet opposite with air inlet pipe, the exterior line between inlet and liquid outlet, which is equipped with, realizes deionized water absorbent cycle
The water circulating pump of flowing.
To further increase assimilation effect, four pieces of vibrations are fixed on the absorption tower side wall from top to bottom and are bubbled water conservancy diversion
Plate, the fixing end that the vibration is bubbled deflector are staggeredly fixed with absorption tower side wall.
It is bubbled the deionized water absorbent that deflector flows down for convenience of collecting from vibration, the absorption tower inner bottom surface is equipped with
To the inclined hang plate in liquid outlet side.
Preferably, the angle of inclination of the hang plate is 20 °.
The absorption process of acetone device contained by a kind of above-mentioned exhaust gas, has following steps：
A, deionized water absorbent is entered by absorption tower top inlet, the vibration being sprayed to by spray thrower in absorption tower
It is bubbled on deflector；
B, the VLA gases containing acetone are inputted by the air inlet pipe of absorption tower lower part, enters absorption by VLA coolers
Tower, VLA gases under the irradiation of the ultraviolet light produced by ultraviolet lamp, are bubbled in vibration on deflector together with deionized water absorbent
Contact with each other abundant reaction；
C, the gas after reaction is discharged after the membranaceous absorbed layer double absorption of graphene from the escape pipe on absorption tower top.
D, when deionized water absorbent is excessive, absorb the bottom of the tower is run underneath to since gravity is bubbled deflector from vibration
Liquid outlet, then squeeze into inlet after water circulating pump decontamination cycle and utilize again.
Preferably, the deionized water absorbent in step a is water pure, without zwitterion, deionized water absorbent
Temperature is 5~10 DEG C, and the sprinkle density of spray thrower is 6m3/(m2h)。
VLA gas inlet temperature of stabilizer in step b is 15~25 DEG C, and uitraviolet intensity caused by ultraviolet lamp is 15W, vibration
It is 18~28cm to be bubbled the bubbling height generated on deflector.
The beneficial effects of the invention are as follows：The present invention is bubbled deflector by vibration and ultraviolet lamp collective effect is cooperateed with to absorb VLA
The acetone that gas includes makes acetone be come into full contact with absorbent and reacts, and two are carried out to acetone using the membranaceous absorbed layer of graphene
Secondary absorption, assimilation effect is thorough, and reactive material is few, and absorptivity and reaction efficiency are high, significantly reduce exhaust-gas treatment energy consumption；Together
When deionized water absorbent prepare simple, easy to use, non-secondary pollution, recyclable recycling.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of absorption plant of the present invention.
In figure：1. the vibration of 2. air inlet pipe of absorption tower, 3. escape pipe 4.VLA coolers 5. is bubbled 6. ultraviolet lamp of deflector
7. 11. water circulating pump of graphene membranaceous 8. spray thrower of absorbed layer 9. inlet, 10. liquid outlet, 12. hang plate
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
The absorption plant of acetone contained by a kind of exhaust gas as shown in Figure 1, including absorption tower 1 are pacified in 1 bottom sidewall of absorption tower
Equipped with air inlet pipe 2,1 tower top of absorption tower is equipped with escape pipe 3, and VLA coolers 4 are equipped on the pipeline of the air inlet pipe 2, inhales
Spacing is equipped with one end and is bubbled deflector 5 with the fixed four pieces of vibrations of 1 side wall of absorption tower from top to bottom in receipts tower 1, and the vibration is roused
The fixing end for steeping deflector 5 is staggeredly fixed with 1 side wall of absorption tower up and down, and the vibration is bubbled 5 other end of deflector and absorption tower 1
There is gap between side wall.
It is equipped with ultraviolet lamp 6 above the gap location that the vibration is bubbled between deflector 5 and 1 side wall of absorption tower, is absorbed
The membranaceous absorbed layer 7 of a layer graphene is equipped with below 1 roof of tower, membranaceous 7 lower section of absorbed layer of graphene, which is equipped with to the vibration, to be bubbled
The spray thrower 8 of deionized water absorbent is sprayed on deflector 5,1 side wall upper part of absorption tower corresponding with 2 position of air inlet pipe has
The inlet 9 of connection spray thrower 8, bottom have liquid outlet 10, and the exterior line between inlet 9 and liquid outlet 10 is equipped with real
The water circulating pump 11 that existing deionized water absorbent circulates.
1 inner bottom surface of absorption tower is equipped with to the inclined hang plate 12 in 10 side of liquid outlet, and the hang plate 12 inclines
Rake angle is 20 °, and the deionized water absorbent that deflector 5 flows down is bubbled to facilitate to collect from vibration.
The technical process of above-mentioned absorption plant is as follows：Using deionized water as absorbent by absorption tower 1 inlet 9 into
Enter, being sprayed to the vibration in absorption tower 1 by spray thrower 8 is bubbled on deflector 5, and the VLA gases containing acetone pass through air inlet pipe 2
Into admission line, enter in absorption tower 1 after VLA coolers 4 carry out cooling, VLA gases are gone under the sprinkling of spray thrower 8
After ionized water mixing, under the irradiation of ultraviolet lamp 6, gas-liquid is contacted with each other on vibration bubbling deflector 5 and is fully reacted, and is reacted
Gas afterwards carries out double absorption during being discharged to top escape pipe 3 using the membranaceous absorbed layer 7 of graphene, finally removes
Absorption tower 1 is discharged by escape pipe 3 in the gas of acetone to the greatest extent.And deionized water absorbent is then from the liquid outlet 10 of 1 bottom of absorption tower
Into the inlet tube of water circulating pump 11, the extraction through water circulating pump 11 flow through 11 outlet tube of water circulating pump enter absorption tower 1 into
Liquid mouth 9 is returned into spray thrower 8.When deionized water absorbent is excessive, since gravity is bubbled deflector from vibration
5 flow down, and flow at the liquid outlet 10 of 1 bottom of absorption tower and are recycled through hang plate 12.
Experiment condition is：Using deionized water pure, without zwitterion as the absorbent of acetone, wherein absorbent may be used also
To add corrosion inhibitor etc., deionized water temperature is 5~10 DEG C, the sprinkle density of spray thrower 8 is 6m3/(m2H), VLA gases
Inlet temperature of stabilizer be 15~25 DEG C, ultraviolet lamp 6 generate uitraviolet intensity be 15W, vibration be bubbled deflector 5 caused by be bubbled
Height is 18~28cm, the acetone during deionized water is absorbed VLA gases in absorption tower 1 by circulating.
Case study on implementation 1
A, using deionized water as the absorbent of acetone.
B, VLA gases are introduced from 1 lower part air inlet pipe 2 of absorption tower in absorption tower 1, and deionized water is being inhaled by water circulating pump 11
It receives tower 1 to be recycled, gas-liquid two-phase is bubbled on deflector 5 in vibration and comes into full contact with, in the collaboration for the ultraviolet light that ultraviolet lamp 6 generates
Under effect, the acetone in VLA gases is absorbed into deionized water, by graphene film during absorption tower 1 is discharged in gas
7 double absorption of shape absorbed layer.Deionized water temperature during this is 9 DEG C, and the inlet temperature of stabilizer of VLA gases is 21 DEG C, ultraviolet light
Intensity be 12W, be bubbled height be 21cm.
C, according to above-mentioned absorption technique regulation implement, VLA gases 923mg/L containing acetone before treatment, by this technique place
After reason, acetone concentration in the VLA gases on absorption tower 1 is discharged and is reduced to 218mg/L, the removal efficiency of acetone reaches in VLA gases
Acetone is adequately degraded in 76.4%, VLA gas.
Case study on implementation 2
A, using deionized water as the absorbent of acetone.
B, VLA gases are introduced from 1 lower part air inlet pipe 2 of absorption tower in absorption tower 1, and deionized water is being inhaled by water circulating pump 11
It receives tower 1 to be recycled, gas-liquid two-phase is bubbled on deflector 5 in vibration and comes into full contact with, in the collaboration for the ultraviolet light that ultraviolet lamp 6 generates
Under effect, the acetone in VLA gases is absorbed into deionized water, by graphene film during absorption tower 1 is discharged in gas
7 double absorption of shape absorbed layer.The deionized water temperature of this process is 6 DEG C, and the inlet temperature of stabilizer of VLA gases is 27 DEG C, ultraviolet light
Intensity is 15W, and it is 26cm to be bubbled height.
C, according to above-mentioned sulfur removal technology regulation implement, VLA gases 967mg/L containing acetone before treatment, by this technique place
After reason, acetone concentration in the VLA gases on absorption tower 1 is discharged and is reduced to 209mg/L, the removal efficiency of acetone reaches in VLA gases
Acetone is adequately degraded in 78.4%, VLA gas.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (7)
1. the absorption plant of acetone contained by a kind of exhaust gas, including absorption tower, air inlet pipe is installed on absorb the bottom of the tower side wall, is absorbed
Column overhead is equipped with escape pipe, it is characterized in that：VLA coolers are installed, spacing in absorption tower on the pipeline of the air inlet pipe
It is bubbled deflector with the fixed vibration of tower side wall is absorbed equipped with one end, is located at the vibration and is bubbled the deflector other end and absorption tower
It is equipped with ultraviolet lamp above gap location between side wall, the membranaceous absorbed layer of at least one layer of graphene, stone are equipped with below the roof of absorption tower
The spray thrower for being bubbled to the vibration and spraying deionized water absorbent on deflector is equipped with below the black membranaceous absorbed layer of alkene, it is described
Absorption tower side wall upper part with the connection inlet of spray thrower, bottom with the liquid outlet opposite with air inlet pipe, inlet with go out
Exterior line between liquid mouth is equipped with the water circulating pump for realizing that deionized water absorbent circulates.
2. the absorption plant of acetone contained by exhaust gas as described in claim 1, it is characterized in that：From upper on the absorption tower side wall
It is fixed with four pieces under and vibrates bubbling deflectors, the fixing end that the vibration is bubbled deflector is staggeredly fixed with absorption tower side wall.
3. the absorption plant of acetone contained by exhaust gas as described in claim 1, it is characterized in that：The absorption tower inner bottom surface is equipped with
To the inclined hang plate in liquid outlet side.
4. the absorption plant of acetone contained by exhaust gas as claimed in claim 3, it is characterized in that：The angle of inclination of the hang plate
It is 20 °.
5. the absorption process of the absorption plant of acetone contained by a kind of exhaust gas as described in claim 1, it is characterized in that：With following step
Suddenly：
A, deionized water absorbent is entered by absorption tower top inlet, and being sprayed to the vibration in absorption tower by spray thrower is bubbled
On deflector；
B, the VLA gases containing acetone are inputted by the air inlet pipe of absorption tower lower part, enters absorption tower, VLA by VLA coolers
Gas under the irradiation of the ultraviolet light produced by ultraviolet lamp, is bubbled on deflector in vibration and mutually connects together with deionized water absorbent
Touch fully reaction；
C, the gas after reaction is discharged after the membranaceous absorbed layer double absorption of graphene from the escape pipe on absorption tower top.
D, when deionized water absorbent is excessive, going out for absorb the bottom of the tower is run underneath to since gravity is bubbled deflector from vibration
Then liquid mouth is squeezed into inlet after water circulating pump decontamination cycle and is utilized again.
6. absorption process as claimed in claim 5, it is characterized in that：Deionized water absorbent in step a is pure, without the moon
The water of cation, deionized water absorbent temperature are 5~10 DEG C, and the sprinkle density of spray thrower is 6m3/(m2h)。
7. absorption process as claimed in claim 5, it is characterized in that：VLA gas inlet temperature of stabilizer in step b is 15~25 DEG C,
Uitraviolet intensity caused by ultraviolet lamp is 15W, and it is 18~28cm that vibration, which is bubbled the bubbling height generated on deflector,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208085.0A CN108310948A (en) | 2018-03-14 | 2018-03-14 | The absorption plant and absorption process of acetone contained by a kind of exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810208085.0A CN108310948A (en) | 2018-03-14 | 2018-03-14 | The absorption plant and absorption process of acetone contained by a kind of exhaust gas |
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| CN108310948A true CN108310948A (en) | 2018-07-24 |
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| CN201810208085.0A Pending CN108310948A (en) | 2018-03-14 | 2018-03-14 | The absorption plant and absorption process of acetone contained by a kind of exhaust gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915440A (en) * | 2019-04-09 | 2019-06-21 | 贵州电网有限责任公司 | A kind of the hydraulic oil off gas system and method for hydraulic mechanism |
| CN116547236A (en) * | 2020-11-18 | 2023-08-04 | 安赛乐米塔尔公司 | Method for manufacturing free-standing graphene oxide or reduced graphene oxide film |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239278A (en) * | 2008-03-07 | 2008-08-13 | 黄立维 | Device for cleaning treatment harmful gas and technique thereof |
| CN103432862A (en) * | 2013-09-06 | 2013-12-11 | 苏州巨联科技有限公司 | Recovery device and method for recovering acetone waste gas by utilizing recovery device |
| CN103446853A (en) * | 2013-09-24 | 2013-12-18 | 李荷云 | Exhaust gas recovery device and exhaust gas recovery system for processing copper-clad plate |
| CN205055792U (en) * | 2015-10-12 | 2016-03-02 | 河北科技大学 | Volatility organic gas's absorption purifier |
| CN105536525A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Photoinduction catalytic oxidation exhaust purification process and device |
| CN205461799U (en) * | 2016-03-23 | 2016-08-17 | 盐城工学院 | Organic waste gas photocatalytic treatment device |
| CN206138980U (en) * | 2016-10-09 | 2017-05-03 | 江苏晨翔环境科技股份有限公司 | Compound deodorizing device |
| CN107213752A (en) * | 2016-03-22 | 2017-09-29 | 天津工业大学 | The apparatus and method of liquid absorption cooperative with ultraviolet radiation catalytic degradation VOC |
| CN206823397U (en) * | 2017-04-08 | 2018-01-02 | 苏州鱼翔环境工程有限公司 | A kind of VOC off-gas cleaning equipments |
| CN206837827U (en) * | 2017-03-21 | 2018-01-05 | 青岛佳博瑞环境科技有限公司 | A kind of paint spray booth emission-control equipment |
| CN107715691A (en) * | 2017-11-21 | 2018-02-23 | 华清绿景（北京）生态环境损害评估鉴定技术研究中心 | A kind of photocatalysis aqueous vapor treating column |
-
2018
- 2018-03-14 CN CN201810208085.0A patent/CN108310948A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101239278A (en) * | 2008-03-07 | 2008-08-13 | 黄立维 | Device for cleaning treatment harmful gas and technique thereof |
| CN103432862A (en) * | 2013-09-06 | 2013-12-11 | 苏州巨联科技有限公司 | Recovery device and method for recovering acetone waste gas by utilizing recovery device |
| CN103446853A (en) * | 2013-09-24 | 2013-12-18 | 李荷云 | Exhaust gas recovery device and exhaust gas recovery system for processing copper-clad plate |
| CN205055792U (en) * | 2015-10-12 | 2016-03-02 | 河北科技大学 | Volatility organic gas's absorption purifier |
| CN105536525A (en) * | 2016-02-24 | 2016-05-04 | 常州大恒环保科技有限公司 | Photoinduction catalytic oxidation exhaust purification process and device |
| CN107213752A (en) * | 2016-03-22 | 2017-09-29 | 天津工业大学 | The apparatus and method of liquid absorption cooperative with ultraviolet radiation catalytic degradation VOC |
| CN205461799U (en) * | 2016-03-23 | 2016-08-17 | 盐城工学院 | Organic waste gas photocatalytic treatment device |
| CN206138980U (en) * | 2016-10-09 | 2017-05-03 | 江苏晨翔环境科技股份有限公司 | Compound deodorizing device |
| CN206837827U (en) * | 2017-03-21 | 2018-01-05 | 青岛佳博瑞环境科技有限公司 | A kind of paint spray booth emission-control equipment |
| CN206823397U (en) * | 2017-04-08 | 2018-01-02 | 苏州鱼翔环境工程有限公司 | A kind of VOC off-gas cleaning equipments |
| CN107715691A (en) * | 2017-11-21 | 2018-02-23 | 华清绿景（北京）生态环境损害评估鉴定技术研究中心 | A kind of photocatalysis aqueous vapor treating column |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915440A (en) * | 2019-04-09 | 2019-06-21 | 贵州电网有限责任公司 | A kind of the hydraulic oil off gas system and method for hydraulic mechanism |
| CN109915440B (en) * | 2019-04-09 | 2023-08-01 | 贵州电网有限责任公司 | Hydraulic oil degassing system and method for hydraulic mechanism |
| CN116547236A (en) * | 2020-11-18 | 2023-08-04 | 安赛乐米塔尔公司 | Method for manufacturing free-standing graphene oxide or reduced graphene oxide film |
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Application publication date: 20180724 |
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