CN107485971A - A kind of retracting device and its recovery process for remaining fumigant vikane - Google Patents
A kind of retracting device and its recovery process for remaining fumigant vikane Download PDFInfo
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- CN107485971A CN107485971A CN201710630834.4A CN201710630834A CN107485971A CN 107485971 A CN107485971 A CN 107485971A CN 201710630834 A CN201710630834 A CN 201710630834A CN 107485971 A CN107485971 A CN 107485971A
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- Prior art keywords
- vikane
- desorber
- absorption tower
- physical absorption
- pipeline
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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
- B01D53/14—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 absorption
- B01D53/1418—Recovery of products
-
- 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
- B01D53/14—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 absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/45—Compounds containing sulfur and halogen, with or without oxygen
- C01B17/4561—Compounds containing sulfur, halogen and oxygen only
- C01B17/4576—Sulfuryl fluoride (SO2F2)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Abstract
The present invention relates to a kind of retracting device and its recovery process for remaining fumigant vikane, the device includes Physical Absorption tower, desorber, vavuum pump, feed pump, circulating pump, fluid reservoir, air-introduced machine, gas compressor, air accumulator etc..The present invention is recycled, the sulfonyl Funing tablet qualified discharge after treatment and purification using biodiesel as physical absorbent in Physical Absorption tower to residual fumigant vikane；Biodiesel rich in vikane vacuum desorption in desorber is regenerated, and returns fluid reservoir and recycles, and the high concentration sulfuryl fluoride gas that Vacuum solutions suction out is compressed to be stored into air accumulator.Compared with tradition ventilation processing mode, the beneficial effects of the invention are as follows：Realize the emission reduction and recycling of greenhouse gases vikane.The present invention have the advantages that technological process is simple, efficient, stability is good, it is green, do not produce secondary pollution.
Description
Technical field
The present invention relates to vikane recovery technology field, and in particular to it is a kind of remain fumigant vikane retracting device and
Its recovery process.
Background technology
Fumigant vikane because its have diffusion permeability strong, broad spectrum disinfestation, efficiently, low-residual, low temperature it is easy to use, zero
The features such as ozone-depleting, substitute traditional fumigant methyl bromide and be applied to container, warehouse, silo, soil more and more widely
Stifling etc. every field, the vikane remained after stifling is directly discharged in air.
However, correlative study shows that fumigant vikane not only has strong greenhouse effects, can also be to the health of people
Generation has a strong impact on.But due to being difficult to be developed in the new fumigant short time and coming into operation, fumigant sulphur at present
Acyl fluorides just expanded application in the world.The Ministry of Agriculture have approved vikane in November, 2006 and be applied to grain fumigating
Agriculture chemical registration.Even to this day, China uses big country as fumigant vikane.2016, the vikane dosage in China
About 1500 tons, equivalent to about 7,200,000 tons of emission greenhouse atmospheric carbon dioxide, and the dosage of vikane is just in cumulative year after year.
If things go on like this, substantial amounts of vikane is discharged into air, and environmental protection and human health will be produced serious influence.Cause
This, exploitation new technology processing residual fumigant vikane is very urgent.
Chinese patent CN201010256651.9, CN201110445113.9, CN201320395223.3 are successively disclosed
Three kinds of nonequilibrium plasma method, plasmon coupling chemical absorption method, alkali lye chemical absorption method removing residual fumigant sulfonyls
The method of fluorine, the destructive mode handled is employed to realize the harmless treatment of residual fumigant vikane, can not be realized
The recycling of vikane.Chinese patent CN201410477152.0 discloses one kind and utilizes nitration stryrene divinyl
Base benzene copolymer porous microsphere come adsorb eliminate vikane method, but this method there is adsorbent adsorption capacity it is small, inhale
Attached dose of easy in inactivation, adsorbent prepare the problems such as complicated.
Biodiesel is a kind of novel green absorbent that can be matched in excellence or beauty with ionic liquid, and its main component is fatty acid methyl
Ester, hardly sulfur-bearing, aromatic hydrocarbons, have viscosity is low, boiling point is high, steam forces down, it is nontoxic, green, do not produce secondary pollution etc.
Advantage, discarded biodiesel absorbent are still used as fuel.At present, biodiesel is mainly used in first as Green absorption agent
The processing of the volatile organic waste gas such as benzene, butanone, but the processing for fumigating waste gas vikane has no report.
The content of the invention
In order to solve deficiency of the prior art, present invention offer technique is simple, efficient, stability is good, green
A kind of retracting device and its recovery process for remaining fumigant vikane.
Technical scheme is as follows：
A kind of retracting device for remaining fumigant vikane, it is characterised in that connected including Physical Absorption tower, with Physical Absorption tower
Desorber, the fluid reservoir being arranged between Physical Absorption tower and desorber and the air accumulator connected with desorber, the physics
The gas phase import of absorption tower bottom is connected by pipeline sets air-introduced machine, and the air-introduced machine accesses residual fumigant sulfonyl by pipeline
Fluorine source gas；The fluid reservoir is connected by pipeline built with biodiesel absorbent, fluid reservoir outlet at bottom and sets feed pump, entered
Material pump is connected by pipeline with Physical Absorption tower upper aqueous phase import, so as to which biodiesel absorbent is delivered into Physical Absorption tower
Inside absorbed；The gaseous phase outlet of the Physical Absorption top of tower is connected by pipeline with ambient atmosphere, the Physical Absorption tower
Bottom liquid phases outlet is connected by pipeline sets delivery pump, and the delivery pump is connected by pipeline and the liquid-inlet on desorber top
Connect, the gas vent at the top of the desorber is connected by pipeline and sets vavuum pump, and the vavuum pump passes through pipeline and air accumulator
The air inlet connection at top, forms vikane recovery pipe；Gas compressor, gas storage are provided between the vavuum pump and air accumulator
Tank top gas outlet is connected with stifling pipeline；Circulating pump is provided between the desorber and fluid reservoir, and will be solved by circulating pump
The liquid outlet for inhaling tower bottom connects with fluid reservoir upper inlet.
As preferred：The Physical Absorption tower and desorber are packed tower, plate column, spray column or high-gravity rotating bed.
The recovery process of described a kind of residual fumigant vikane, it is characterised in that comprise the following steps：
1）The absorption cleaning of vikane：Air-introduced machine is delivered to fumigant vikane is remained by the gas phase import of Physical Absorption tower bottom
In Physical Absorption tower, while feed pump is conveyed the biodiesel absorbent in fluid reservoir by the import of Physical Absorption tower upper aqueous phase
Absorption cleaning is carried out in Physical Absorption tower to vikane, purification gas discharges air by Physical Absorption top of tower gaseous phase outlet；
2）The recovery of vikane：Step 1）The biodiesel absorbent rich in vikane is by Physical Absorption tower in middle Physical Absorption tower
Liquid-phase outlet flows out, and is conveyed through delivery pump, is entered by desorber liquid-inlet and vacuum desorption regeneration is carried out in desorber；Through vacuum
Pump is conveyed, and the high concentration sulfuryl fluoride gas desorbed is exported by stripper gas and discharged, and is stored into after gas compressor compresses
In air accumulator；
3）The circulation of absorbent：Biodiesel absorbent after being regenerated in desorber is flowed out by desorber liquid outlet, through circulation
Pump conveys, and it is recycled to return to fluid reservoir.
As preferred：The biodiesel absorbent includes fatty acid methyl ester, fatty-acid ethyl ester and fatty acid methyl ester, fat
The compound of fat acetoacetic ester and antioxidant.
As preferred：The step 1）Absorption process is normal temperature, entered under conditions of normal pressure in middle vikane Physical Absorption tower
OK.
As preferred：The step 2）Operation temperature in interior desorber in desorption process is normal temperature, and operation absolute pressure is less than
10 kPa。
Beneficial effects of the present invention：1）The present invention has that absorptive capacity is big, is recycled and makes using biodiesel as absorbent
With, stable performance, nontoxic, clean environment firendly, do not produce the advantages that secondary pollution.
2）The present invention is realized to being carried out while residual vikane processing by physical absorption tower and desorber combination
The recovery of vikane and the regeneration of biodiesel absorbent.
3）The present invention will remain vikane relative to current draft type and be discharged into air and not only protect in container
Atmospheric environment and the health of people, and vikane is reclaimed, avoid the waste of resource.The present invention has technique
Flow is simple, efficiently, stability it is good, it is green, do not produce the advantages that secondary pollution.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the gaseous-mass spectrography comparative result figure of biodiesel before and after present invention desorption；
In figure：1- air-introduced machines, 2- Physical Absorption towers, 2A- liquid-phase outlets, 2B- gas phase imports, 2C- gaseous phase outlets, 2D- liquid phases are entered
Mouthful, 3- feed pumps, 4- delivery pumps, 5- fluid reservoirs, 5A- outlet at bottoms, 5B- upper inlets, 6- circulating pumps, 7- desorbers, 7A- liquid
Body exports, 7B- liquid-inlets, 7C- gas vents, 8- vavuum pumps, 9- gas compressors, 10- air accumulators, 10A- air inlets,
10B- gas outlets.
Embodiment
The present invention is described further with reference to Figure of description and embodiment, but protection scope of the present invention is not
It is only limitted to this.
As shown in figure 1, the present invention residual fumigant vikane retracting device, including air-introduced machine 1, Physical Absorption tower 2,
Liquid-phase outlet 2A, gas phase import 2B, gaseous phase outlet 2C, fluid inlet 2D, feed pump 3, delivery pump 4, fluid reservoir 5, outlet at bottom
5A, upper inlet 5B, circulating pump 6, desorber 7, liquid outlet 7A, liquid-inlet 7B, gas vent 7C, vavuum pump 8, gas pressure
Contracting machine 9, air accumulator 10, air inlet 10A, gas outlet 10B.Desorber 7 connects with Physical Absorption tower 2, and fluid reservoir 5 is arranged on physics
Between absorption tower 2 and desorber 7, air accumulator 14 connects with desorber 11, and the bottom gas phase import 2B of Physical Absorption tower 2 passes through pipeline
Connection sets air-introduced machine 1, and air-introduced machine 1 accesses residual fumigant sulfonyl fluorine source gas by pipeline；Fluid reservoir 5 is built with biodiesel
Absorbent, the outlet at bottom 5A of fluid reservoir 5 are connected by pipeline and are set feed pump 3, and feed pump 3 passes through pipeline and Physical Absorption tower 2
Upper aqueous phase import 2D connections, absorbed so as to which biodiesel is delivered in Physical Absorption tower 2；The top of Physical Absorption tower 2
Gaseous phase outlet 2C connected by pipeline with ambient atmosphere, the bottom liquid phases of Physical Absorption tower 2 outlet 2A pass through pipeline connection set
Delivery pump 4, delivery pump 4 are connected by pipeline with the liquid-inlet 7B on the top of desorber 7, the gas vent 7C at the top of desorber 7
Connected by pipeline and vavuum pump 8 is set, vavuum pump 8 is connected by pipeline with the top air inlet 10A of air accumulator 10, forms vikane
Recovery pipe, gas compressor 9 is provided between vavuum pump 8 and air accumulator 10；The top gas outlet 10B of air accumulator 10 and fumigation tube
Road is connected, and realizes recycling；It is provided with circulating pump 6 between desorber 7 and fluid reservoir 5, and by circulating pump 6 by desorber 7
The liquid outlet 7A of bottom connects with the upper inlet 5B of fluid reservoir 5, forms biodiesel absorbent and recycles loop.
Recovery process step is as follows：
1）The absorption cleaning of vikane：It is defeated by the bottom gas phase import 2B of Physical Absorption tower 2 that air-introduced machine 1 will remain fumigant vikane
Deliver in Physical Absorption tower 2, at the same feed pump 3 by the biodiesel absorbent in fluid reservoir 5 by the upper aqueous phase of Physical Absorption tower 2
Import 2D is delivered in Physical Absorption tower 2 and carries out absorption cleaning to vikane, and purification gas is gone out by the top gas phase of Physical Absorption tower 2
Mouth 2C discharge air；
2）The recovery of vikane：Step 1）The biodiesel absorbent rich in vikane is by Physical Absorption in middle Physical Absorption tower 2
The liquid-phase outlet 2A of tower 2 flows out, and is conveyed through delivery pump 4, is entered by the liquid-inlet 7B of desorber 7 and vacuum desorption is carried out in desorber 7
Regeneration；Conveyed through vavuum pump 8, the high concentration sulfuryl fluoride gas desorbed is discharged by the gas vent 7C of desorber 7, through gas compression
Machine 9 is stored into air accumulator 10 after compressing；
3）The circulation of absorbent：Biodiesel absorbent after being regenerated in desorber 7 is flowed out by the liquid outlet 7A of desorber 7, warp
Circulating pump 6 conveys, and it is recycled to return to fluid reservoir 5.
Embodiment：
Using biodiesel as absorbent, in the glass filler tower for the jacketed that internal diameter is 20 mm（Filler is filled out for glass spring
Material, bed stuffing height is 500 mm）, it is 30 DEG C to control temperature using water bath with thermostatic control, and operating pressure is normal pressure, to volumetric concentration
Absorption experiment is carried out for 5000 ppm residual fumigant vikane waste gas.As a result show：When fluid flow is 80 ml/min,
When gas flow is 50 ml/min, it is less than 5 ppm, qualified discharge through gas chromatographic analysis outlet vikane volumetric concentration.
In the glass filler tower for the jacketed that internal diameter is 20 mm（Filler is glass spring filler, and bed stuffing height is
500 mm）, it is 5-10 kPa using absolute pressure is operated in vavuum pump control tower, it is 30 DEG C to control temperature using water bath with thermostatic control, to inhaling
Receive the biodiesel absorbent after vikane and carry out vacuum desorption regeneration.As a result show：Biodiesel absorbs vikane process
Physical absorption process, absorbent can be regenerated by vacuum desorption.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domains of application claims.
Claims (6)
1. a kind of retracting device for remaining fumigant vikane, it is characterised in that including Physical Absorption tower（2）With Physical Absorption
Tower（2）The desorber of connection（7）, be arranged on Physical Absorption tower（2）With desorber（7）Between fluid reservoir（5）And and desorber
（7）The air accumulator of connection（10）, the Physical Absorption tower（2）Bottom gas phase import（2B）Connected by pipeline and air-introduced machine is set
（1）, the air-introduced machine（1）Residual fumigant sulfonyl fluorine source gas is accessed by pipeline；The fluid reservoir（5）Built with biodiesel
Absorbent, fluid reservoir（5）Outlet at bottom（5A）Connected by pipeline and feed pump is set（3）, feed pump（3）Pass through pipeline and physics
Absorption tower（2）Upper aqueous phase import（2D）Connection, so as to which biodiesel absorbent is delivered into Physical Absorption tower（2）Inside inhaled
Receive；The Physical Absorption tower（2）The gaseous phase outlet at top（2C）Connected by pipeline with ambient atmosphere, the Physical Absorption tower
（2）Bottom liquid phases export（2A）Connected by pipeline and delivery pump is set（4）, the delivery pump（4）Pass through pipeline and desorber（7）
The liquid-inlet on top（7B）Connection, the desorber（7）The gas vent at top（7C）Connected by pipeline and vavuum pump is set
（8）, the vavuum pump（8）Pass through pipeline and air accumulator（10）The air inlet at top（10A）Connection, form vikane recovery tube
Road；The vavuum pump（8）With air accumulator（10）Between be provided with gas compressor（9）, air accumulator（10）Top gas outlet（10B）With
Stifling pipeline is connected；The desorber（7）With fluid reservoir（5）Between be provided with circulating pump（6）, and pass through circulating pump（6）Will desorption
Tower（7）The liquid outlet of bottom（7A）With fluid reservoir（5）Upper inlet（5B）Connection.
2. a kind of retracting device for remaining fumigant vikane according to claim 1, it is characterised in that the physics is inhaled
Receive tower（2）And desorber（7）For packed tower, plate column, spray column or high-gravity rotating bed.
3. according to a kind of recovery process of any described residual fumigant vikanes of claim 1-2, it is characterised in that including
Following steps：
1）The absorption cleaning of vikane：Air-introduced machine（1）Fumigant vikane will be remained by Physical Absorption tower（2）Bottom gas phase import
（2B）It is delivered to Physical Absorption tower（2）It is interior, while feed pump（3）By fluid reservoir（5）In biodiesel absorbent inhaled by physics
Receive tower（2）Upper aqueous phase import（2D）It is delivered to Physical Absorption tower（2）Interior to carry out absorption cleaning to vikane, purification gas is by thing
Manage absorption tower（2）Top gas phase exports（2C）Discharge air；
2）The recovery of vikane：Step 1）Middle Physical Absorption tower（2）The interior biodiesel absorbent rich in vikane is inhaled by physics
Receive tower（2）Liquid-phase outlet（2A）Outflow, through delivery pump（4）Conveying, by desorber（7）Liquid-inlet（7B）Into desorber（7）
Interior progress vacuum desorption regeneration；Through vavuum pump（8）Conveying, the high concentration sulfuryl fluoride gas desorbed is by desorber（7）Gas goes out
Mouthful（7C）Discharge, through gas compressor（9）Air accumulator is stored into after compression（10）In；
3）The circulation of absorbent：Desorber（7）Biodiesel absorbent after interior regeneration is by desorber（7）Liquid outlet（7A）Stream
Go out, through circulating pump（6）Conveying, returns to fluid reservoir（5）It is recycled.
A kind of 4. recovery process for remaining fumigant vikane according to claim 3, it is characterised in that the biological bavin
Oil absorber is the compounding of fatty acid methyl ester, either fatty-acid ethyl ester or fatty acid methyl ester, fatty-acid ethyl ester and antioxidant
Thing.
A kind of 5. recovery process for remaining fumigant vikane according to claim 3, it is characterised in that the step 1）
Middle vikane Physical Absorption tower（2）Interior absorption process is normal temperature, is carried out under conditions of normal pressure.
A kind of 6. recovery process for remaining fumigant vikane according to claim 3, it is characterised in that the step 2）
Interior desorber（7）Operation temperature in interior desorption process is normal temperature, and operation absolute pressure is less than 10 kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630834.4A CN107485971B (en) | 2017-07-28 | 2017-07-28 | A kind of recyclable device and its recovery process remaining fumigant vikane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630834.4A CN107485971B (en) | 2017-07-28 | 2017-07-28 | A kind of recyclable device and its recovery process remaining fumigant vikane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107485971A true CN107485971A (en) | 2017-12-19 |
| CN107485971B CN107485971B (en) | 2019-06-21 |
Family
ID=60643976
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710630834.4A Active CN107485971B (en) | 2017-07-28 | 2017-07-28 | A kind of recyclable device and its recovery process remaining fumigant vikane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935286A (en) * | 2020-01-16 | 2020-03-31 | 浙江工业大学 | Method for absorbing residual fumigant sulfuryl fluoride by using ionic liquid composite bio-based solvent |
| CN111408236A (en) * | 2020-03-17 | 2020-07-14 | 上海汉洁环境工程有限公司 | Waste gas absorption liquid for volatile organic gas treatment |
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| WO1991007093A1 (en) * | 1989-11-09 | 1991-05-30 | Minato Company, Ltd. | Process involving sterilization step, product having bacteriocidal activity and process for preparing the same, fumigant, fumigation method, and bacteriocidal gas composition, and process and apparatus for preparing the same |
| CN101185825A (en) * | 2007-09-14 | 2008-05-28 | 江苏惠利特环保设备有限公司 | Oil gas recovery method and device using absorption method and membrane separating method integration technology |
| CN201162937Y (en) * | 2008-03-03 | 2008-12-10 | 天津市检验检疫科学技术研究院 | Bromomethane pressurization and condensation reclaimer |
| CN102114382A (en) * | 2011-01-14 | 2011-07-06 | 浙江诚信医化设备有限公司 | Method for separating and recovering fumigation medicine |
-
2017
- 2017-07-28 CN CN201710630834.4A patent/CN107485971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007093A1 (en) * | 1989-11-09 | 1991-05-30 | Minato Company, Ltd. | Process involving sterilization step, product having bacteriocidal activity and process for preparing the same, fumigant, fumigation method, and bacteriocidal gas composition, and process and apparatus for preparing the same |
| CN101185825A (en) * | 2007-09-14 | 2008-05-28 | 江苏惠利特环保设备有限公司 | Oil gas recovery method and device using absorption method and membrane separating method integration technology |
| CN201162937Y (en) * | 2008-03-03 | 2008-12-10 | 天津市检验检疫科学技术研究院 | Bromomethane pressurization and condensation reclaimer |
| CN102114382A (en) * | 2011-01-14 | 2011-07-06 | 浙江诚信医化设备有限公司 | Method for separating and recovering fumigation medicine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110935286A (en) * | 2020-01-16 | 2020-03-31 | 浙江工业大学 | Method for absorbing residual fumigant sulfuryl fluoride by using ionic liquid composite bio-based solvent |
| CN111408236A (en) * | 2020-03-17 | 2020-07-14 | 上海汉洁环境工程有限公司 | Waste gas absorption liquid for volatile organic gas treatment |
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| Publication number | Publication date |
|---|---|
| CN107485971B (en) | 2019-06-21 |
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