US2959021A - Process for air separation by liquefaction and rectification - Google Patents
Process for air separation by liquefaction and rectification Download PDFInfo
- Publication number
- US2959021A US2959021A US682151A US68215157A US2959021A US 2959021 A US2959021 A US 2959021A US 682151 A US682151 A US 682151A US 68215157 A US68215157 A US 68215157A US 2959021 A US2959021 A US 2959021A
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- US
- United States
- Prior art keywords
- air
- oxygen
- rectification
- liquid
- heat exchange
- 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 - Lifetime
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- 238000000034 method Methods 0.000 title description 9
- 238000000926 separation method Methods 0.000 title description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 59
- 229910052760 oxygen Inorganic materials 0.000 description 59
- 239000001301 oxygen Substances 0.000 description 59
- 239000007788 liquid Substances 0.000 description 46
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 41
- 238000010792 warming Methods 0.000 description 33
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 32
- 230000008016 vaporization Effects 0.000 description 17
- 229910052757 nitrogen Inorganic materials 0.000 description 16
- 238000003860 storage Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000009834 vaporization Methods 0.000 description 10
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000036284 oxygen consumption Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000000727 fraction Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0012—Primary atmospheric gases, e.g. air
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
- F25J1/0037—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work of a return stream
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0221—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop
- F25J1/0224—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using the cold stored in an external cryogenic component in an open refrigeration loop in combination with an internal quasi-closed refrigeration loop
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- 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
- F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
- F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
- F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
- F25J1/0234—Integration with a cryogenic air separation unit
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- F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
- F25J1/0244—Operation; Control and regulation; Instrumentation
- F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
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- 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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
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- 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
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
- F25J3/04224—Cores associated with a liquefaction or refrigeration cycle
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- 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
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- 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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
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- 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
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- 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
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- F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/04339—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air
- F25J3/04345—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of air and comprising a gas work expansion loop
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- 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
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- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/04—Internal refrigeration with work-producing gas expansion loop
- F25J2270/06—Internal refrigeration with work-producing gas expansion loop with multiple gas expansion loops
-
- 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
- F25J2270/00—Refrigeration techniques used
- F25J2270/08—Internal refrigeration by flash gas recovery loop
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/912—External refrigeration system
- Y10S62/913—Liquified gas
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1056633X | 1956-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2959021A true US2959021A (en) | 1960-11-08 |
Family
ID=9597543
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US682151A Expired - Lifetime US2959021A (en) | 1956-09-25 | 1957-09-05 | Process for air separation by liquefaction and rectification |
Country Status (7)
Country | Link |
---|---|
US (1) | US2959021A (de) |
BE (1) | BE560692A (de) |
DE (1) | DE1056633B (de) |
FR (1) | FR1158639A (de) |
GB (1) | GB826298A (de) |
LU (1) | LU35441A1 (de) |
NL (2) | NL221053A (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3180709A (en) * | 1961-06-29 | 1965-04-27 | Union Carbide Corp | Process for liquefaction of lowboiling gases |
US3237418A (en) * | 1960-10-26 | 1966-03-01 | Philips Corp | Apparatus and method for producing liquid oxygen and/or liquid nitrogen by low temperature rectification of atmospheric air |
US5987918A (en) * | 1998-03-17 | 1999-11-23 | The Boc Group, Inc. | Method of separating nitrogen from air |
US20050132746A1 (en) * | 2003-12-23 | 2005-06-23 | Jean-Renaud Brugerolle | Cryogenic air separation process and apparatus |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3174293A (en) * | 1960-11-14 | 1965-03-23 | Linde Eismasch Ag | System for providing gas separation products at varying rates |
GB929798A (en) * | 1960-04-11 | 1963-06-26 | British Oxygen Co Ltd | Low temperature separation of air |
GB917695A (en) * | 1960-10-17 | 1963-02-06 | British Oxygen Co Ltd | Improvements in the cold separation of air |
US3182461A (en) * | 1961-09-19 | 1965-05-11 | Hydrocarbon Research Inc | Natural gas liquefaction and separation |
GB1314347A (en) * | 1970-03-16 | 1973-04-18 | Air Prod Ltd | Air rectification process for the production of oxygen |
GB2129115B (en) * | 1982-10-27 | 1986-03-12 | Air Prod & Chem | Producing gaseous nitrogen |
FR2706195B1 (fr) † | 1993-06-07 | 1995-07-28 | Air Liquide | Procédé et unité de fourniture d'un gaz sous pression à une installation consommatrice d'un constituant de l'air. |
FR2710370B1 (fr) * | 1993-09-21 | 1995-12-08 | Air Liquide | Procédé et ensemble de compression d'un gaz. |
DE4415747C2 (de) * | 1994-05-04 | 1996-04-25 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
FR2723184B1 (fr) | 1994-07-29 | 1996-09-06 | Grenier Maurice | Procede et installation de production d'oxygene gazeux sous pression a debit variable |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503939A (en) * | 1944-12-26 | 1950-04-11 | Baufre William Lane De | Process and apparatus for removing water vapor and carb on dioxide from gases |
DE803301C (de) * | 1948-10-02 | 1951-04-02 | Adolf Messer G M B H | Verfahren zum Kaltfahren von Anlagen zur Verfluessigung oder Zerlegung von Gasen bzw. Gasgemischen |
US2626510A (en) * | 1947-06-18 | 1953-01-27 | Air Prod Inc | Air fractionating cycle and apparatus |
US2708831A (en) * | 1953-04-09 | 1955-05-24 | Air Reduction | Separation of air |
US2712738A (en) * | 1952-01-10 | 1955-07-12 | Linde S Eismaschinen Ag | Method for fractionating air by liquefaction and rectification |
US2741094A (en) * | 1951-08-27 | 1956-04-10 | British Oxygen Co Ltd | Method of and apparatus for dispensing gases |
US2822675A (en) * | 1954-04-23 | 1958-02-11 | Air Liquide | Production of gaseous oxygen under pressure |
US2873583A (en) * | 1954-05-04 | 1959-02-17 | Union Carbide Corp | Dual pressure cycle for air separation |
-
0
- BE BE560692D patent/BE560692A/xx unknown
- NL NL108862D patent/NL108862C/xx active
- NL NL221053D patent/NL221053A/xx unknown
- LU LU35441D patent/LU35441A1/xx unknown
-
1956
- 1956-09-25 FR FR1158639D patent/FR1158639A/fr not_active Expired
-
1957
- 1957-09-05 US US682151A patent/US2959021A/en not_active Expired - Lifetime
- 1957-09-05 DE DEA27855A patent/DE1056633B/de active Pending
- 1957-09-10 GB GB28532/57A patent/GB826298A/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503939A (en) * | 1944-12-26 | 1950-04-11 | Baufre William Lane De | Process and apparatus for removing water vapor and carb on dioxide from gases |
US2626510A (en) * | 1947-06-18 | 1953-01-27 | Air Prod Inc | Air fractionating cycle and apparatus |
DE803301C (de) * | 1948-10-02 | 1951-04-02 | Adolf Messer G M B H | Verfahren zum Kaltfahren von Anlagen zur Verfluessigung oder Zerlegung von Gasen bzw. Gasgemischen |
US2741094A (en) * | 1951-08-27 | 1956-04-10 | British Oxygen Co Ltd | Method of and apparatus for dispensing gases |
US2712738A (en) * | 1952-01-10 | 1955-07-12 | Linde S Eismaschinen Ag | Method for fractionating air by liquefaction and rectification |
US2708831A (en) * | 1953-04-09 | 1955-05-24 | Air Reduction | Separation of air |
US2822675A (en) * | 1954-04-23 | 1958-02-11 | Air Liquide | Production of gaseous oxygen under pressure |
US2873583A (en) * | 1954-05-04 | 1959-02-17 | Union Carbide Corp | Dual pressure cycle for air separation |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3237418A (en) * | 1960-10-26 | 1966-03-01 | Philips Corp | Apparatus and method for producing liquid oxygen and/or liquid nitrogen by low temperature rectification of atmospheric air |
US3180709A (en) * | 1961-06-29 | 1965-04-27 | Union Carbide Corp | Process for liquefaction of lowboiling gases |
US5987918A (en) * | 1998-03-17 | 1999-11-23 | The Boc Group, Inc. | Method of separating nitrogen from air |
US20050132746A1 (en) * | 2003-12-23 | 2005-06-23 | Jean-Renaud Brugerolle | Cryogenic air separation process and apparatus |
WO2005064252A1 (en) * | 2003-12-23 | 2005-07-14 | L'air Liquide - Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic air separation process and apparatus |
US7228715B2 (en) | 2003-12-23 | 2007-06-12 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Cryogenic air separation process and apparatus |
EP2031329A1 (de) * | 2003-12-23 | 2009-03-04 | L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Verfahren zur Tieftemperaturzerlegung von Luft |
Also Published As
Publication number | Publication date |
---|---|
NL108862C (de) | 1900-01-01 |
FR1158639A (fr) | 1958-06-17 |
BE560692A (de) | 1900-01-01 |
DE1056633B (de) | 1959-05-06 |
LU35441A1 (de) | |
GB826298A (en) | 1959-12-31 |
NL221053A (de) | 1900-01-01 |
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