JPS63218215A - Separation of gas-liquid mixture - Google Patents
Separation of gas-liquid mixtureInfo
- Publication number
- JPS63218215A JPS63218215A JP5051887A JP5051887A JPS63218215A JP S63218215 A JPS63218215 A JP S63218215A JP 5051887 A JP5051887 A JP 5051887A JP 5051887 A JP5051887 A JP 5051887A JP S63218215 A JPS63218215 A JP S63218215A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- gas
- membrane
- liquid
- separated
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 44
- 239000007788 liquid Substances 0.000 title claims description 28
- 238000000926 separation method Methods 0.000 title claims description 8
- 238000000034 method Methods 0.000 claims description 15
- 229920005597 polymer membrane Polymers 0.000 claims description 6
- 239000012528 membrane Substances 0.000 abstract description 23
- 239000002131 composite material Substances 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 238000005373 pervaporation Methods 0.000 description 3
- UUAGAQFQZIEFAH-UHFFFAOYSA-N chlorotrifluoroethylene Chemical compound FC(F)=C(F)Cl UUAGAQFQZIEFAH-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 2
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 description 1
- 229920013683 Celanese Polymers 0.000 description 1
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- RJCQBQGAPKAMLL-UHFFFAOYSA-N bromotrifluoromethane Chemical compound FC(F)(F)Br RJCQBQGAPKAMLL-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0031—Degasification of liquids by filtration
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、少くとも１成分以上が気液二相状態にある２
成分以上の混合物を膜により分離する方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to two or more components in which at least one component is in a gas-liquid two-phase state.
The present invention relates to a method of separating a mixture of more than two components using a membrane.
従来の技術
２成分以上の混合物を分離する方法として、気体混合物
の場合は、深冷分離方式、吸着方式、膜力式等が知られ
ている。また、液体混合物の場合は、精留分離方式、浸
透気化方式等が知られ、いずれも工業的に実用化されて
いる。BACKGROUND OF THE INVENTION As methods for separating mixtures of two or more components, in the case of gaseous mixtures, cryogenic separation methods, adsorption methods, membrane force methods, etc. are known. In the case of liquid mixtures, rectification separation methods, pervaporation methods, and the like are known, and both have been put into practical use industrially.
発明が解決しようとする問題点
気液二相混合物を分離しようとする場合、先に述べた気
体混合物の分離方法を用いるためには加熱等の前処理を
行ない混合物を気体に保つ必要がある。また液体混合物
の分離方法を用いるためには、まず加圧、冷却等により
液化する必要がある。Problems to be Solved by the Invention When attempting to separate a gas-liquid two-phase mixture, it is necessary to perform pretreatment such as heating to maintain the mixture in a gaseous state in order to use the method for separating gas mixtures described above. In addition, in order to use the method of separating a liquid mixture, it is first necessary to liquefy it by pressurization, cooling, etc.
さらに精留分離方式では、０分離性能を向上しようとす
ると精留塔の理論段数を大きくとる必要があり、装置が
大型化する、■混合物の各成分の沸点の差が大きい場合
には有効であるが、共沸混合物、近沸点混合物等の分離
は困難である、等の問題点がある。また浸透気化方式で
は前記混合物を加圧、冷却等の操作により液体に保つ必
要がある。気液混合物を気体と液体に分離した後それぞ
れを分離する方法も考えられるが、気液分離器、気体分
離器、液体分離器等が必要であり装置が複雑で大型にな
り実用的でない等の問題点をそれぞれ有しており、気液
二相混合物を前処理なしにそのまま分離する方法は従来
提案されていなかった。Furthermore, in the rectification separation method, in order to improve the zero separation performance, it is necessary to increase the number of theoretical plates in the rectification column, which increases the size of the equipment. However, there are problems such as difficulty in separating azeotropic mixtures, near-boiling point mixtures, etc. Further, in the pervaporation method, it is necessary to maintain the mixture in a liquid state by pressurizing, cooling, and other operations. Although it is possible to separate a gas-liquid mixture into gas and liquid and then separate each of them, this method requires a gas-liquid separator, a gas separator, a liquid separator, etc., and the equipment becomes complicated and large, making it impractical. Each method has its own problems, and no method has been proposed in the past for directly separating a gas-liquid two-phase mixture without pretreatment.
本発明は、このような問題点を解決するもので、加圧、
加熱等の前処理を施すことなく気液二相混合物中の特定
成分の分離をすることが可能であり、分離器を構成した
場合には精留分離器等に比べ高さ、設置方向等の制限が
無く、さらに共沸混合物。The present invention solves these problems by applying pressure,
It is possible to separate specific components in a gas-liquid two-phase mixture without pretreatment such as heating, and when a separator is configured, it is easier to use in terms of height, installation direction, etc. than a rectification separator. No restrictions and even azeotropes.
近沸点混合物の分離が可能な気液混合物の分離方法を提
供するものである。The present invention provides a method for separating gas-liquid mixtures that allows separation of near-boiling point mixtures.
問題点を解決するだめの手段
この問題点を解決するために本発明は、２成分以上の混
合物で、少なくとも１成分が気液二相状態である気液混
合物を高分子膜を用いて分離するものである。Means to Solve the Problem In order to solve this problem, the present invention uses a polymer membrane to separate a gas-liquid mixture of two or more components, in which at least one component is in a gas-liquid two-phase state. It is something.
作用
上記のような構成によって、高分子膜を介して供給側に
は気液二相状態の混合物が接しており、透過側を減圧、
あるいは供給側を加圧して膜の両面の圧力差を大きくす
ることにより膜表面に気体として混合物が接している部
分では、混合物中の各成分のもつ透過係数に応じて気体
が透過し、分離される。また膜表面に液として混合物が
接している部分では浸透気化により各成分の分離が行な
われる。従って気液二相状態の混合物を高分子膜を介し
て圧力差を設けることにより混合物を分離濃縮できるこ
ととなる。Effect With the above configuration, the gas-liquid two-phase mixture is in contact with the supply side via the polymer membrane, and the permeate side is depressurized.
Alternatively, by pressurizing the supply side and increasing the pressure difference between the two sides of the membrane, the gas can permeate and be separated in the area where the mixture is in contact with the membrane surface as a gas, depending on the permeability coefficient of each component in the mixture. Ru. Further, in the portion where the mixture is in contact with the membrane surface as a liquid, each component is separated by pervaporation. Therefore, by creating a pressure difference in a gas-liquid two-phase mixture through a polymer membrane, the mixture can be separated and concentrated.
実施例
（実施例１）
以下、本発明の一実施例について図面を用いて具体的に
説明する。Example (Example 1) Hereinafter, an example of the present invention will be specifically described using the drawings.
図において、１は混合物の貯略槽、２は混合物を送り出
すポンプ、３は系内の圧力を調整する弁、４は分離器、
６は高分子複合膜、６は透過物質を系外へ取り出す管路
である。ここで前記高分子複合膜６はジメチルシリコー
ンのベンゼン溶液を水上に展開し、超薄膜とした後、ポ
リプロピレンの多孔質フィルム（セラニーズ社製：商品
名ジュラガード）に転写製膜したものを用いた。次にこ
の複合膜’に用いてモノクロロジフルオロメタン（ダイ
キン工業（株）製：商品名ダイフロンＲ−２２）とトリ
フルオロブロモメタン（ダイキン工業（株）製：商品名
ダイフロンＲ−１ａＢ１）の混合物の分離を行なった。In the figure, 1 is a storage tank for the mixture, 2 is a pump that sends out the mixture, 3 is a valve that adjusts the pressure within the system, 4 is a separator,
6 is a polymer composite membrane, and 6 is a conduit for taking out the permeated substance out of the system. Here, the polymer composite membrane 6 was prepared by spreading a benzene solution of dimethyl silicone on water to form an ultra-thin film, and then transferring the film to a polypropylene porous film (manufactured by Celanese, trade name: Duraguard). . Next, a mixture of monochlorodifluoromethane (manufactured by Daikin Industries, Ltd., trade name Daiflon R-22) and trifluorobromomethane (manufactured by Daikin Industries, Ltd., trade name Daiflon R-1aB1) was used in this composite membrane. Separation was performed.
以下実験の結果について説明する。なお実験装置は第１
図に示したとおりである。The results of the experiment will be explained below. The experimental equipment is the first one.
As shown in the figure.
貯留槽１内に上記混合物を封入し、ポンプ２によって分
離器４に送り込む。このとき弁３によって系内の圧力が
１ｏすｆ／ｃｒ／ｌに保たれるように調整する。混合物
は分離器４内を通過する際に高分子複合膜６によって分
離される。分離器４内は膜６を介して高圧側膜室４１Ｌ
と低圧側膜室４ｂとに分けられており、高圧側は１ｏ”
ｐｆ／ｃｒ／ｌに保たれ、低圧側は大気に解放されてい
るため、膜の両面の圧力差は１ｏ”ｙｆ／ａｌとなる。The mixture is sealed in a storage tank 1 and sent to a separator 4 by a pump 2. At this time, the pressure in the system is adjusted by the valve 3 so that it is maintained at 1 ozf/cr/l. The mixture is separated by a polymer composite membrane 6 as it passes through the separator 4 . The inside of the separator 4 is connected to the high pressure side membrane chamber 41L via the membrane 6.
and a low-pressure side membrane chamber 4b, and the high-pressure side is 1o"
pf/cr/l and the low pressure side is open to the atmosphere, so the pressure difference between both sides of the membrane is 1 o''yf/al.
この圧力差によって混合物質中の特定成分が選択的に透
過するが、本実施例においてはＲ−２２がＲ−１３８１
に比べて透過しやすく、Ｒ−２２の濃度が高い透過物質
が管路６より得られた。本実施例の実験結果を次表に示
す。Due to this pressure difference, a specific component in the mixed substance selectively permeates, but in this example, R-22 is R-1381.
A permeated material with a higher concentration of R-22 was obtained from conduit 6. The experimental results of this example are shown in the following table.
（以下余 白）
（実施例２）
膜は実施例１と同様のジメチルシリコーン複合膜を用い
て、共沸混合物であるアサヒフロン５ＯＯ（旭硝子（株
）ニジクロロジフルオロメタンＲ−１２とジフルオロエ
タンＲ−１５２＆を重量比７３．８：２６．２で混合し
たもの）の分離を行ない次表のような結果を得た。(The following is a blank space) (Example 2) The same dimethyl silicone composite membrane as in Example 1 was used as the membrane, and an azeotropic mixture of Asahi Flon 5OO (Asahi Glass Co., Ltd.) dichlorodifluoromethane R-12 and difluoroethane R- 152& in a weight ratio of 73.8:26.2) was separated, and the results shown in the following table were obtained.
以上のようにこれらの実施例によれば少なくとも１成分
が気液二相状態である混合物を高分子膜を使うことによ
り分離することが可能となる。As described above, according to these embodiments, it is possible to separate a mixture in which at least one component is in a gas-liquid two-phase state by using a polymer membrane.
発明の効果
以上のように本発明によれば２成分以上の混合物で、少
なくともその１成分が気体または液体状態あるいは気液
二相状態である気液混合物を高分子膜を使うことにより
分離することで、加圧、加熱等の前処理を施すことなく
気液二相混合物中の特定の成分の選択的に分離すること
が可能であり、分離器を構成した場合には精留分離器等
に比べ高さ、設置方向等の制限がない。さらに共沸混合
物、近沸点混合物の分離が可能な気液混合物の分離方法
であり、その実用的効果は犬なるものがある。Effects of the Invention As described above, according to the present invention, a gas-liquid mixture of two or more components, in which at least one component is in a gas or liquid state, or in a gas-liquid two-phase state, can be separated by using a polymer membrane. It is possible to selectively separate specific components in a gas-liquid two-phase mixture without pretreatment such as pressurization or heating. There are no restrictions on height, installation direction, etc. Furthermore, it is a method for separating gas-liquid mixtures that can separate azeotropic mixtures and near-boiling point mixtures, and its practical effects are outstanding.
図は本発明の一実施例による気液混合物の分離方法を用
いた装置の構成図である。
１・・・・・・貯留槽、２・・・・・・ポンプ、３・・
・・・・弁、４・・・・・・分離器、４＆・・・・・・
高圧側膜室、４ｂ・・・・・・低圧側膜室、６・・・・
・・高分子複合膜、６・・・・・・管路。The figure is a configuration diagram of an apparatus using a method for separating a gas-liquid mixture according to an embodiment of the present invention. 1...Storage tank, 2...Pump, 3...
... Valve, 4... Separator, 4 &...
High pressure side membrane chamber, 4b...Low pressure side membrane chamber, 6...
...Polymer composite membrane, 6...Pipeline.
Claims (1)
気体状態または液体状態、あるいは気液二相状態である
気液混合物を高分子膜を使うことにより分離することを
特徴とする気液混合物の分離方法。Separation of a gas-liquid mixture, which is a mixture of two or more components and in which at least one of the components is in a gas or liquid state, or in a gas-liquid two-phase state, is separated by using a polymer membrane. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051887A JPS63218215A (en) | 1987-03-05 | 1987-03-05 | Separation of gas-liquid mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5051887A JPS63218215A (en) | 1987-03-05 | 1987-03-05 | Separation of gas-liquid mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63218215A true JPS63218215A (en) | 1988-09-12 |
Family
ID=12861191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5051887A Pending JPS63218215A (en) | 1987-03-05 | 1987-03-05 | Separation of gas-liquid mixture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63218215A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906256A (en) * | 1989-03-23 | 1990-03-06 | Membrane Technology & Research, Inc. | Membrane process for treatment of fluorinated hydrocarbon-laden gas streams |
| US5282968A (en) * | 1992-08-03 | 1994-02-01 | E. I. Du Pont De Nemours And Company | Process for separating and recovering halocarbons from mixtures thereof |
| US5456841A (en) * | 1992-08-03 | 1995-10-10 | E. I. Du Pont De Nemours And Company | Process for separating and recovering halocarbons from mixtures thereof |
| US5871566A (en) * | 1994-11-09 | 1999-02-16 | Lang Apparatebau Gmbh | Vented metering pump |
| EP1904213A2 (en) * | 2005-07-13 | 2008-04-02 | Systec, LLC | Integrated degassing and debubbling apparatus |
-
1987
- 1987-03-05 JP JP5051887A patent/JPS63218215A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4906256A (en) * | 1989-03-23 | 1990-03-06 | Membrane Technology & Research, Inc. | Membrane process for treatment of fluorinated hydrocarbon-laden gas streams |
| US5282968A (en) * | 1992-08-03 | 1994-02-01 | E. I. Du Pont De Nemours And Company | Process for separating and recovering halocarbons from mixtures thereof |
| WO1994003419A1 (en) * | 1992-08-03 | 1994-02-17 | E.I Du Pont De Nemours And Company | Improved process for separating and recovering halocarbons from mixtures thereof |
| US5456841A (en) * | 1992-08-03 | 1995-10-10 | E. I. Du Pont De Nemours And Company | Process for separating and recovering halocarbons from mixtures thereof |
| US5871566A (en) * | 1994-11-09 | 1999-02-16 | Lang Apparatebau Gmbh | Vented metering pump |
| EP1904213A2 (en) * | 2005-07-13 | 2008-04-02 | Systec, LLC | Integrated degassing and debubbling apparatus |
| EP1904213A4 (en) * | 2005-07-13 | 2012-08-29 | Rheodyne Llc | Integrated degassing and debubbling apparatus |
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