GB688550A - Improvements in or relating to the low temperature separation of gas mixtures by rectification - Google Patents
Improvements in or relating to the low temperature separation of gas mixtures by rectificationInfo
- Publication number
- GB688550A GB688550A GB788750A GB788750A GB688550A GB 688550 A GB688550 A GB 688550A GB 788750 A GB788750 A GB 788750A GB 788750 A GB788750 A GB 788750A GB 688550 A GB688550 A GB 688550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- column
- oxygen
- air
- nitrogen
- rectification
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
688,550. Separating gas mixtures. BRITISH OXYGEN CO.. Ltd. June 29, 1951 [March 29, 1950], No. 7887/50. Class 8 (ii). A process for separating a gas mixture e.g., air into a lower boiling point fraction e.g., nitrogen and at least one fraction of higher boiling point e.g., oxygen in a rectification column 3 comprises cooling compressed air in nitrogen regenerator 2a, 2b to provide saturated vapour of which at least part is condensed by heat exchange with boiling oxygen e.g., in a coil at the base of the column 3, expanding at a valve 5 and vaporising at an exchanger 6 at least part of the liquid air in heat exchange with effluent nitrogen from the column 3 to provide reflux therefor, re-compressing the expanded and vaporised air to at least atmospheric pressure e.g. by a turbo-compressor 8, cooling e.g., in oxygen regenerators 7a, 7b, 9a, 9b and expanding at a turbine 11 to provide gaseous feed to the column 3. In a modification a condenser is substituted for the vaporisor 6 and is mounted on top of the column 3, and in either of the above processes part of the liquid air is expended into the column as liquid feed before traversing the valve 5. Specification 632,329, is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB788750A GB688550A (en) | 1950-03-29 | 1950-03-29 | Improvements in or relating to the low temperature separation of gas mixtures by rectification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB788750A GB688550A (en) | 1950-03-29 | 1950-03-29 | Improvements in or relating to the low temperature separation of gas mixtures by rectification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB688550A true GB688550A (en) | 1953-03-11 |
Family
ID=9841707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB788750A Expired GB688550A (en) | 1950-03-29 | 1950-03-29 | Improvements in or relating to the low temperature separation of gas mixtures by rectification |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB688550A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874669A (en) * | 2019-06-04 | 2021-12-31 | 林德有限责任公司 | Method and apparatus for the cryogenic separation of air |
-
1950
- 1950-03-29 GB GB788750A patent/GB688550A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113874669A (en) * | 2019-06-04 | 2021-12-31 | 林德有限责任公司 | Method and apparatus for the cryogenic separation of air |
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