GB579712A - Improvements in or relating to the low temperature separation of compressed gaseous mixtures - Google Patents
Improvements in or relating to the low temperature separation of compressed gaseous mixturesInfo
- Publication number
- GB579712A GB579712A GB1523844A GB1523844A GB579712A GB 579712 A GB579712 A GB 579712A GB 1523844 A GB1523844 A GB 1523844A GB 1523844 A GB1523844 A GB 1523844A GB 579712 A GB579712 A GB 579712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boiling point
- sub
- mixture
- separated
- low boiling
- 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
579,712. Low temperature distilling. BRITISH OXYGEN CO., Ltd., and GODFREY, R. C. Aug. 10, 1944, No. 15238. [Class 32] [Also in Group XXVIII] A compressed gaseous mixture is separated into a substantially pure relatively high boiling point constituent and a relatively low boiling point fraction by precooling the mixture to the condensation temperature by heat interchange with a mass of the high boiling point constituent in the liquid phase, sub-cooling the condensed mixture, expanding it and then subjecting it to rectification ; the sub-cooling medium being circulated around the rectification zone to shield it against ingress of heat. The separated low boiling point fraction may be employed as the sub-cooling medium. By sub-cooling the mixture prior to expansion, the amount of high boiling point constituent in the separated low boiling point fraction is reduced. The invention may be applied in the separation of compressed air into substantially pure oxygen and a nitrogen fraction. The compressed gaseous mixture is fed through a conduit 15 to a heat exchanger 16 in the reboiler 11 of a packed rectification column where it is precooled by the separated liquid high boiling point constituent. The precooled mixture is then sub-cooled in the tubular helix 17 mounted in the casing 22 through which the separated low boiling point fraction passes. The sub-cooled mixture flows through the expansion valve 18 and is distributed over the contact mass in the column by the distributor 19 which has several outlets 24 extending down into the contact mass. As the temperature of the low boiling point fraction flowing through the casing 22 is lower than that of the peripheral portions of the contact mass in the column, the latter is surrounded with a static air shroud 23 which acts as a thermal insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1523844A GB579712A (en) | 1944-08-10 | 1944-08-10 | Improvements in or relating to the low temperature separation of compressed gaseous mixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1523844A GB579712A (en) | 1944-08-10 | 1944-08-10 | Improvements in or relating to the low temperature separation of compressed gaseous mixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB579712A true GB579712A (en) | 1946-08-13 |
Family
ID=10055501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1523844A Expired GB579712A (en) | 1944-08-10 | 1944-08-10 | Improvements in or relating to the low temperature separation of compressed gaseous mixtures |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB579712A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2867985A (en) * | 1953-07-15 | 1959-01-13 | Philips Corp | Gas-separating apparatus |
| US2915883A (en) * | 1953-06-22 | 1959-12-08 | Philips Corp | Gas-fractionating column |
| EP0598382A1 (en) * | 1992-11-17 | 1994-05-25 | Praxair Technology, Inc. | Improved packed column distillation system |
-
1944
- 1944-08-10 GB GB1523844A patent/GB579712A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2915883A (en) * | 1953-06-22 | 1959-12-08 | Philips Corp | Gas-fractionating column |
| US2867985A (en) * | 1953-07-15 | 1959-01-13 | Philips Corp | Gas-separating apparatus |
| EP0598382A1 (en) * | 1992-11-17 | 1994-05-25 | Praxair Technology, Inc. | Improved packed column distillation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1307640A (en) | Liquifaction process for gases and gas mixtures | |
| GB1297082A (en) | ||
| GB1038053A (en) | A process for the cold separation of gas mixtures | |
| US2386297A (en) | Separation of the constituents of gaseous mixtures by liquefaction and rectification | |
| GB1315003A (en) | Gas mixture rectification | |
| GB899171A (en) | Fractionation of gaseous mixtures | |
| GB994185A (en) | Low temperature separation of gaseous mixtures | |
| ES8605565A1 (en) | Process and installation for recovering the heavier hydrocarbons from a gaseous mixture. | |
| FR2217648B1 (en) | ||
| GB1043309A (en) | Low temperature separation of gaseous mixtures | |
| GB579712A (en) | Improvements in or relating to the low temperature separation of compressed gaseous mixtures | |
| ES336803A1 (en) | Low temperature separation of gases utilizing two distillation columns having a common condenser-evaporator | |
| US3181306A (en) | Argon separation | |
| US2545462A (en) | System for separation of argon from air | |
| GB1033931A (en) | Improvements in or relating to the production of oxygen enriched air by low temperature liquefaction and rectification | |
| GB885482A (en) | Improvements in or relating to methods and devices for separating components from a gas and/or vapour mixture | |
| GB965947A (en) | Process for separating a low-boiling-point gas mixture into its components | |
| GB877091A (en) | Low temperature purification of carbon dioxide | |
| GB939667A (en) | Improvements in or relating to devices for the cold separation of gas mixtures | |
| GB873427A (en) | Apparatus and method for fractionation of gaseous mixtures | |
| IT1037653B (en) | PROCEDURE FOR THE SEPARATION OF AIR AT LOW TEMPERATURES | |
| GB1280342A (en) | An installation for, and a method of obtaining, a fluid rich in methane at a high pressure | |
| GB798584A (en) | Process and apparatus for separating gas mixtures | |
| GB1088641A (en) | Method for separation of multicomponent gas mixtures | |
| GB1204407A (en) | Improvements in or relating to fractionation of gas mixtures |