JPS558803A - Separation of gas by using high polymer porous membrane - Google Patents
Separation of gas by using high polymer porous membraneInfo
- Publication number
- JPS558803A JPS558803A JP7976678A JP7976678A JPS558803A JP S558803 A JPS558803 A JP S558803A JP 7976678 A JP7976678 A JP 7976678A JP 7976678 A JP7976678 A JP 7976678A JP S558803 A JPS558803 A JP S558803A
- Authority
- JP
- Japan
- Prior art keywords
- separation
- porous membrane
- concentration
- high polymer
- mixed gas
- 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.)
- Granted
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE: In a separation and concentration of a mixed gas containing at least one organic molecule by using a high polymer porous membrane, the separation and concentration of said gas mixture can be accomplished at a very high efficiency by specifying the working temperature and pressure.
CONSTITUTION: In the separation and concentration of the mixed gas containing at least one organic molecule by using a porous membrane consisting of a high polymer and having an average pore diameter of from 0.005 to 0.1μ, the pressure to the porous membrane surface is less than a value determined by the expression I and is a value determined by the expression II, where π is the circular constant, R is gas constant, T is absolute temperature, M is the average molecular weight of the mixed gas, η is coefficient of viscosity, Z is 1.01325×106/76, γmax is maximum pore radius, α is a pore diameter ratio of the surface to the back, and the temperature T is the maximum boiling point of each of components present in the mixed gas under one atmospheric pressure or the sublimation point Tb is fixed to a value within the range of the expression III. Under such conditions, the efficiency of the separation and concentration can remarkably be enhanced by generating a different flow from a free molecular flow subjected to a mutual action between the high polymer porous membrane material and gaseous molecule.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7976678A JPS558803A (en) | 1978-07-03 | 1978-07-03 | Separation of gas by using high polymer porous membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7976678A JPS558803A (en) | 1978-07-03 | 1978-07-03 | Separation of gas by using high polymer porous membrane |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7650182A Division JPS58223A (en) | 1982-05-10 | 1982-05-10 | Separation of gas using high polymer porous membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS558803A true JPS558803A (en) | 1980-01-22 |
| JPS5635492B2 JPS5635492B2 (en) | 1981-08-18 |
Family
ID=13699326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7976678A Granted JPS558803A (en) | 1978-07-03 | 1978-07-03 | Separation of gas by using high polymer porous membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS558803A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223A (en) * | 1982-05-10 | 1983-01-05 | Asahi Chem Ind Co Ltd | Separation of gas using high polymer porous membrane |
-
1978
- 1978-07-03 JP JP7976678A patent/JPS558803A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223A (en) * | 1982-05-10 | 1983-01-05 | Asahi Chem Ind Co Ltd | Separation of gas using high polymer porous membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5635492B2 (en) | 1981-08-18 |
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