CN101954235A - Method for recovering sulfur hexafluoride in gas mixture by utilizing membrane separation method - Google Patents
Method for recovering sulfur hexafluoride in gas mixture by utilizing membrane separation method Download PDFInfo
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- CN101954235A CN101954235A CN2010105087268A CN201010508726A CN101954235A CN 101954235 A CN101954235 A CN 101954235A CN 2010105087268 A CN2010105087268 A CN 2010105087268A CN 201010508726 A CN201010508726 A CN 201010508726A CN 101954235 A CN101954235 A CN 101954235A
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- China
- Prior art keywords
- membrane separation
- sulfur hexafluoride
- separation device
- gas mixture
- blender
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- 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.)
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- 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 invention discloses a method for recovering sulfur hexafluoride in a gas mixture by utilizing a membrane separation method, adopting the following technical scheme: a washer/filter, booster pumps, a membrane separation device, a condenser, a vaporizer and a mixer are connected by a connection pipeline in sequence; the membrane separation device and the mixer are externally connected with a nitrogen circulating pipe by the connection pipeline; and the assembly is connected with power distribution equipment by a conductor, thus assembling the devices into a whole. The method is reasonable in process and simple in preparation, ensures the produced sulfur hexafluoride to have high purity and solves the problem of environmental pollution, thus being ideal.
Description
Affiliated technical field
The present invention relates to a kind of synthetic technology of preparing of chemical products, particularly a kind of method that adopts a kind of membrane separation process to reclaim sulfur hexafluoride in the gaseous mixture is suitable for the synthetic preparation of chemical industry sulfur hexafluoride.
Background technology
At present, the production Technology of sulfur hexafluoride still can not be produced the pure sulfur hexafluoride of preparation also under study for action.
Summary of the invention
Problem to be solved by this invention is, overcomes the deficiencies in the prior art, and a kind of method that adopts a kind of membrane separation process to reclaim sulfur hexafluoride in the gaseous mixture is provided.This technology not only technology is reasonable, and preparation is simple, and the sulfur hexafluoride purity height of producing, and has solved problem of environmental pollution.
The technical solution used in the present invention is: washing/filter, booster pump, membrane separation device, condenser, vaporizer, blender are linked in sequence by connecting line, membrane separation device is connected the nitrogen circulation pipe with blender outward by connecting line, assembly connects controller switching equipment by lead, general assembly one and constituting.
Reclaim the method for sulfur hexafluoride in the gaseous mixture, the mist of mix sulphur, carbon tetrafluoride and nitrogen is removed solid particle through washing/filter earlier, entering membrane separation device through booster pump then makes nitrogen separate with carbon tetrafluoride with sulfur hexafluoride, handle through condenser, vaporizer, blender more afterwards, the control temperature makes sulfur hexafluoride liquefaction and carbon tetrafluoride maintenance gaseous state, thereby sulfur hexafluoride is separated with carbon tetrafluoride, after the sulfur hexafluoride vaporization after the liquefaction, return use again.
If used sulfur hexafluoride gas directly discharges, first can cause the pollution (greenhouse effects) to atmospheric environment, and second also is uneconomic.
The invention has the beneficial effects as follows that technology is reasonable, preparation is simple, the sulfur hexafluoride purity height of production, and solved problem of environmental pollution.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Accompanying drawing number is: 1, controller switching equipment, 2, washing/filter, 3, booster pump, 4, membrane separation device, 5, condenser, 6, vaporizer, 7, blender, 8, the nitrogen circulation pipe, 9, connect valve.
The specific embodiment
With reference to Fig. 1, washing/filter 2, booster pump 3, membrane separation device 4, condenser 5, vaporizer 6, blender 7 are linked in sequence by connecting line 9, membrane separation device 4 is connected nitrogen circulation pipes 8 with blender 7 outward by connecting line 9, assembly connects controller switching equipment 1 by lead, general assembly one and constituting.
Reclaim the method for sulfur hexafluoride in the gaseous mixture, the mist of mix sulphur, carbon tetrafluoride and nitrogen is removed solid particle through washing/filter 2 earlier, entering membrane separation device 4 through booster pump 3 then makes nitrogen separate with carbon tetrafluoride with sulfur hexafluoride, handle through condenser 5, vaporizer 6, blender 7 more afterwards, the control temperature makes sulfur hexafluoride liquefaction and carbon tetrafluoride maintenance gaseous state, thereby sulfur hexafluoride is separated with carbon tetrafluoride, after the sulfur hexafluoride vaporization after the liquefaction, return use again.
If used sulfur hexafluoride gas directly discharges, first can cause the pollution (greenhouse effects) to atmospheric environment, and second also is uneconomic.
Utilize this method the sulfur hexafluoride of 15.7% in the nitrogen can be purified to 99.998%, the sulfur hexafluoride rate of recovery reaches 95%, and nitrogen gas purity reaches 99.9%.
Technology is reasonable, makes simply, is the easiest desirable technique of sulfur hexafluoride preparation.
Claims (1)
1. method that adopts a kind of membrane separation process to reclaim sulfur hexafluoride in the gaseous mixture, it is characterized in that: washing/filter, booster pump, membrane separation device, condenser, vaporizer, blender are linked in sequence by connecting line, membrane separation device is connected the nitrogen circulation pipe with blender outward by connecting line, assembly connects controller switching equipment by lead, general assembly one and constituting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105087268A CN101954235A (en) | 2010-10-18 | 2010-10-18 | Method for recovering sulfur hexafluoride in gas mixture by utilizing membrane separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105087268A CN101954235A (en) | 2010-10-18 | 2010-10-18 | Method for recovering sulfur hexafluoride in gas mixture by utilizing membrane separation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101954235A true CN101954235A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105087268A Pending CN101954235A (en) | 2010-10-18 | 2010-10-18 | Method for recovering sulfur hexafluoride in gas mixture by utilizing membrane separation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN101954235A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141854A1 (en) * | 2015-03-06 | 2016-09-15 | 西安北鱼智能科技有限公司 | Gas purification device and gas purification method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6389845B1 (en) * | 1999-10-05 | 2002-05-21 | American Air Liquide, Inc. | Method and apparatus for separation of SF6 from CF4 /air-containing gas stream |
-
2010
- 2010-10-18 CN CN2010105087268A patent/CN101954235A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6389845B1 (en) * | 1999-10-05 | 2002-05-21 | American Air Liquide, Inc. | Method and apparatus for separation of SF6 from CF4 /air-containing gas stream |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141854A1 (en) * | 2015-03-06 | 2016-09-15 | 西安北鱼智能科技有限公司 | Gas purification device and gas purification method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110126 |