FR2093373A5 - Permeable fluoropolymer membranes - steam treated to increase transmission of hydrogen or helium - Google Patents
Permeable fluoropolymer membranes - steam treated to increase transmission of hydrogen or heliumInfo
- Publication number
- FR2093373A5 FR2093373A5 FR7021582A FR7021582A FR2093373A5 FR 2093373 A5 FR2093373 A5 FR 2093373A5 FR 7021582 A FR7021582 A FR 7021582A FR 7021582 A FR7021582 A FR 7021582A FR 2093373 A5 FR2093373 A5 FR 2093373A5
- Authority
- FR
- France
- Prior art keywords
- helium
- hydrogen
- increase transmission
- steam treated
- fluoropolymer membranes
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B23/00—Noble gases; Compounds thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/501—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by diffusion
- C01B3/503—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by diffusion characterised by the membrane
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0405—Purification by membrane separation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/0475—Composition of the impurity the impurity being carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/0465—Composition of the impurity
- C01B2203/048—Composition of the impurity the impurity being an organic compound
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7021582A FR2093373A5 (en) | 1970-06-12 | 1970-06-12 | Permeable fluoropolymer membranes - steam treated to increase transmission of hydrogen or helium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7021582A FR2093373A5 (en) | 1970-06-12 | 1970-06-12 | Permeable fluoropolymer membranes - steam treated to increase transmission of hydrogen or helium |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2093373A5 true FR2093373A5 (en) | 1972-01-28 |
Family
ID=9057061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7021582A Expired FR2093373A5 (en) | 1970-06-12 | 1970-06-12 | Permeable fluoropolymer membranes - steam treated to increase transmission of hydrogen or helium |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2093373A5 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7309424B2 (en) | 2001-01-31 | 2007-12-18 | Kabushiki Kaisha Toshiba | Filtering apparatus, back wash method therefor, filtering device and power plant |
-
1970
- 1970-06-12 FR FR7021582A patent/FR2093373A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7309424B2 (en) | 2001-01-31 | 2007-12-18 | Kabushiki Kaisha Toshiba | Filtering apparatus, back wash method therefor, filtering device and power plant |
US7754074B2 (en) | 2001-01-31 | 2010-07-13 | Kabushiki Kaisha Toshiba | Filtering apparatus, back wash method therefor, filtering device and power plant |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |