EP1050728A1 - Einzelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft - Google Patents
Einzelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft Download PDFInfo
- Publication number
- EP1050728A1 EP1050728A1 EP00108864A EP00108864A EP1050728A1 EP 1050728 A1 EP1050728 A1 EP 1050728A1 EP 00108864 A EP00108864 A EP 00108864A EP 00108864 A EP00108864 A EP 00108864A EP 1050728 A1 EP1050728 A1 EP 1050728A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- column
- feed air
- single column
- pressure
- fed
- 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
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 title claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 9
- 238000004821 distillation Methods 0.000 abstract 2
- 239000000047 product Substances 0.000 description 12
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Images
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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
-
- 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
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
-
- 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
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- 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
-
- 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
- F25J3/044—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 using a single pressure main column system only
-
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead gas
-
- 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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
Definitions
- the invention relates to a single-column process for the low-temperature separation of air, cooled in the compressed feed air and fed to the single column and a oxygen-rich fraction is drawn off liquid from the single column, relaxed and in a condenser-evaporator with indirect heat exchange condensing nitrogen from the top of the single column at least is partially evaporated, with at least part of that in the condenser-evaporator generated steam is compressed and fed to the single column.
- the invention is therefore based on the object of a single column method Specify the type mentioned and a corresponding device that are economically more favorable, in particular because of a particularly low one Energy consumption and / or a particularly high product yield.
- This object is achieved in that at least part of the feed air upstream of the introduction into the single column is relaxed while performing work.
- the operating pressure at the top of the single column is 2, for example up to 5 bar, preferably 3 to 4 bar.
- the oxygen-rich fraction is generally the bottom liquid Single column formed You can also partially or completely above the Feed point of the feed air are withdrawn from the column.
- the feed air at an intermediate point in the single column is fed.
- the point of supply of the recompressed oxygen-rich Fraction is preferably below this intermediate point at which the feed air is initiated, usually directly at the bottom of the column. There are for example 2 to 12 practical or theoretical floors between the Intermediate point and the feed of the re-compressed oxygen-rich fraction.
- That part of the oxygenated fraction that is not in the column can be recycled - upstream and / or downstream of the recompression as a gaseous oxygen product (purity, for example, 30 to 99.8 vol%; it is but also any higher purity achievable) deducted as residual gas discarded and / or as regeneration gas for a cleaning device for the Operating air can be used.
- a gaseous oxygen product purity, for example, 30 to 99.8 vol%; it is but also any higher purity achievable
- the relaxation machine for work-related relaxation of the supply air preferably formed by a turbine, for example by a generator, or braked by a compressor for feed air or a product gas becomes.
- the method of the invention is also relatively simple in terms of apparatus and control technology. It comes compared to other processes that use two or more turbines and / or have two or more capacitors, with a single turbine and one single condenser evaporator.
- the first and the second part of the feed air of the individual column are preferably on fed to a first or second intermediate point, the second Intermediate place at least one theoretical or practical floor above the first intermediate point is arranged.
- Cleaned air 101 compressed to a first pressure is brought in and in divided a first part 102 and a second part 103.
- the first air portion 102 flows to the warm end of a main heat exchanger 104 and is countered there Backflows cooled and partially liquefied.
- the first air section is then over Line 105 of the single column 107 fed to a first intermediate point 106.
- the second part 103 of the feed air is in a post-compressor 108 to a second, recompressed higher pressure, cooled (109) and via line 110 to Main heat exchanger 104 performed.
- the second air section leaves the main heat exchanger at an intermediate temperature via line 111 and is in a turbine 112 relaxed work, which is braked by a generator 113.
- the Relaxed work-performing air is via line 114 to a second intermediate point 115 of the single column 107 out.
- the oxygen-rich fraction is in the embodiment by Bottom liquid 116 of the single column is formed. It is relaxed (117) and in the Evaporation space of a condenser-evaporator 118, the top condenser Single column, introduced and at least partially evaporated there.
- Gaseous top nitrogen 119 is dem at least partially via line 120 Liquefaction chamber of the condenser-evaporator 118 fed. That there condensate 121 formed is at least partially 122 as a return to the Single column 107 abandoned. Another part 123 can be used as a liquid product if required be dissipated.
- the evaporation space of the condenser-evaporator 118 turns out For safety reasons, at least a small amount of liquid is flushed via line 128 taken. If there is a need for a liquid oxygen product, one can a correspondingly higher amount can be discharged via line 128.
- the part 129 of the oxygen-rich evaporated in the condenser-evaporator 118 Fraction is warmed in the main heat exchanger 104.
- a first part 131 of the warmed oxygen-rich fraction 130 is in a recompressor 132 slightly above the operating pressure of the single column, after removal of 133 Heat of compression via line 134 to the main heat exchanger and finally via Line 135 led to the bottom of the single column.
- the exemplary embodiment is accessible to a large number of technical modifications.
- the turbine 112 can be operated with the generator 113 instead of the generator 113
- Post-compressor 108, the recompressor 132 and / or the product compressor 126 be coupled.
- the densification of the vaporized oxygen-rich fraction can deviating from the exemplary embodiment at approximately the operating temperature of the individual column be carried out by a cold compressor.
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
Description
Pos. Nr. | T [K] | P [bara] | F [Nm 3 /h] | VF [%] | N 2 [%] | Ar [%] | O 2 [%] |
2 | 298 | 3,91 | 44268 | 100 | 78,118 | 0,932 | 20,95 |
3 | 298 | 3,91 | 3453 | 100 | 78,118 | 0,932 | 20,95 |
4 | 298 | 3,91 | 40815 | 100 | 78,118 | 0,932 | 20,95 |
5 | 298 | 9,49 | 3453 | 100 | 78,118 | 0,932 | 20,95 |
6 | 143 | 9,39 | 3453 | 100 | 78,118 | 0,932 | 20,95 |
7 | 113 | 3,77 | 3453 | 100 | 78,118 | 0,932 | 20,95 |
8 | 102 | 3,82 | 15215 | 97,4 | 32,4 | 2,6 | 65,0 |
9 | 95 | 3,81 | 40815 | 96,5 | 78,118 | 0,932 | 20,95 |
10 | 98 | 3,82 | 29483 | 0 | 32,4 | 2,6 | 65,0 |
11 | 90 | 1,30 | 29483 | 100 | 32,4 | 2,6 | 65,0 |
12 | 90 | 1,30 | 29483 | 100 | 32,4 | 2,6 | 65,0 |
13 | 90 | 3,66 | 30000 | 100 | 99,86 | 0,14 | 1 ppm |
14 | 297 | 3,56 | 30000 | 100 | 99,86 | 0,14 | 1 ppm |
15 | 297 | 1,20 | 14268 | 100 | 32,4 | 2,6 | 65,0 |
Pos. Nr. | T [K] | P [bara] | F [Nm 3 /h] | VF [%] | N 2 [%] | Ar [%] | O 2 [%] |
2 | 298 | 4,82 | 38488 | 100 | 78,118 | 0,932 | 20,95 |
3 | 298 | 4,82 | 8903 | 100 | 78,118 | 0,932 | 20,95 |
4 | 298 | 4,82 | 29585 | 100 | 78,118 | 0,932 | 20,95 |
5 | 298 | 7,01 | 8903 | 100 | 78,118 | 0,932 | 20,95 |
6 | 115 | 6,91 | 8903 | 100 | 78,118 | 0,932 | 20,95 |
7 | 104 | 4,72 | 8903 | 100 | 78,118 | 0,932 | 20,95 |
8 | 108 | 4,75 | 23660 | 97 | 1 | 4 | 95,00 |
9 | 97 | 4,72 | 29585 | 95 | 78,118 | 0,932 | 20,95 |
10 | 108 | 4,75 | 32148 | 0 | 1 | 4 | 95,00 |
11 | 92 | 1,3 | 32148 | 100 | 1 | 4 | 95,00 |
12 | 92 | 1,3 | 32148 | 100 | 1 | 4 | 95,00 |
13 | 93 | 4,58 | 30000 | 100 | 99,92 | 0,08 | 1 ppm |
14 | 297 | 4,48 | 30000 | 100 | 99,92 | 0,08 | 1 ppm |
15 | 297 | 1,20 | 8488 | 100 | 1 | 4 | 95,00 |
- Pos.Nr.
- in Rechtecke eingeschlossenen Zahlen in der Zeichnung
- T
- Temperatur
- P
- Druck
- F
- Mengenstrom
- VF
- gasförmiger Anteil
- N2
- Stickstoffgehalt
- Ar
- Argongehalt
- O2
- Sauerstoffgehalt
Claims (6)
- Einzelsäulenverfahren zur Tieftemperaturzerlegung von Luft, bei dem verdichtete Einsatzluft (101, 102, 103, 110) abgekühlt (104) und der Einzelsäule (107) zugeführt (105, 114) wird und eine sauerstoffreiche Fraktion (116) flüssig aus der Einzelsäule (107) abgezogen, entspannt (117) und in einem Kondensator-Verdampfer (118) durch indirekten Wärmeaustausch mit kondensierendem Stickstoff (120) aus dem oberen Bereich der Einzelsäule (107) mindestens teilweise verdampft wird, wobei mindestens ein Teil (131) des in dem Kondensator-Verdampfer (118) erzeugten Dampfs (129, 130) rückverdichtet (132) und der Einzelsäule (107) zugeführt (134, 135) wird, dadurch gekennzeichnet, daß mindestens ein Teil (103, 110, 111) der Einsatzluft (101) stromaufwärts der Einleitung (114) in die Einzelsäule (107) arbeitsleistend entspannt (112) wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß ein erster Teil (102) der Einsatzluft (101), der unter einem ersten Druck steht, abgekühlt und teilweise verflüssigt (104) und der Einzelsäule (107) zugeleitet wird und daß ein zweiter Teil (103) der Einsatzluft (101) auf einen zweiten Druck gebracht (108) wird, der höher als der erste Druck ist, auf eine Zwischentemperatur oberhalb der Betriebstemperatur der Einzelsäule abgekühlt (104), der arbeitsleistenden Entspannung (112) zugeführt und anschließend in die Einzelsäule (107) eingeleitet (114) wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der erste und der zweite Teil der Einsatzluft gemeinsam auf den ersten Druck verdichtet werden und der zweite Teil (103) der Einsatzluft in einem Nachverdichter (108) auf den zweiten Druck nachverdichtet wird.
- Vorrichtung zur Tieftemperaturzerlegung von Luft, mit einer Einsatzluftleitung (101, 103, 110, 111, 114), die durch einen Hauptwärmetauscher (104) zu einer Zwischenstelle (115) einer Einzelsäule (107) führt, mit einer Flüssigkeitsleitung (116) zur Überführung einer flüssigen sauerstoffreichen Fraktion aus der Einzelsäule (107) in den Verdampfungsraum eines Kondensator-Verdampfers (118), dessen Verflüssigungsraum mit dem oberen Bereich der Einzelsäule (107) verbunden (119, 120) ist, mit einem Rückverdichter (132), dessen Eintritt mit dem Verdampfungsraum des Kondensator-Verdampfers (118) und dessen Austritt mit der Einzelsäule (107) verbunden (134, 135; 129, 130, 131) ist, gekennzeichnet durch eine Entspannungsmaschine (112), die in der Einsatzluftleitung (101, 103, 110, 111, 114) angeordnet ist.
- Vorrichtung nach Anspruch 4, gekennzeichnet durch eine erste Einsatzluftleitung (102, 105) zur Einleitung eines ersten Teils der Einsatzluft unter einem ersten Druck in die Einzelsäule (107) und durch eine zweite Einsatzluftleitung (103, 110, 111, 114) zur Zuführung eines zweiten Teils der Einsatzluft unter einem zweiten Druck, der höher als der erste Druck ist, zu der Entspannungsmaschine (112) und zur Einleitung von in der Entspannungsmaschine entspannter Luft in die Einzelsäule (107).
- Vorrichtung nach Anspruch 5, gekennzeichnet durch einen Nachverdichter (108), der in der zweiten Einsatzluftleitung (103, 110) stromaufwärts der Entspannungsmaschine (112) angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19919933 | 1999-04-30 | ||
DE19919933A DE19919933A1 (de) | 1999-04-30 | 1999-04-30 | Einzelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1050728A1 true EP1050728A1 (de) | 2000-11-08 |
EP1050728B1 EP1050728B1 (de) | 2005-06-15 |
Family
ID=7906567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00108864A Expired - Lifetime EP1050728B1 (de) | 1999-04-30 | 2000-04-26 | Einzelsäulenverfahren und -vorrichtung zur Tieftemperaturzerlegung von Luft |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1050728B1 (de) |
AT (1) | ATE298071T1 (de) |
DE (2) | DE19919933A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008064117A1 (de) | 2008-12-19 | 2009-05-28 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
EP2236964B1 (de) | 2009-03-24 | 2019-11-20 | Linde AG | Verfahren und Vorrichtung zur Tieftemperatur-Luftzerlegung |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4088464A (en) * | 1975-03-26 | 1978-05-09 | S.I.A.D. Societa Italiana Acetilene E Derivati | Method and apparatus with a single rectifying column for air fractionation |
US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
DE4030750A1 (de) * | 1990-09-28 | 1992-04-02 | Linde Ag | Verfahren und vorrichtung zur tieftemperaturzerlegung von luft |
EP0584420A1 (de) * | 1992-08-28 | 1994-03-02 | Air Products And Chemicals, Inc. | Einsäulenluftzerlegungszyklus und dessen Integration in Gasturbinen |
-
1999
- 1999-04-30 DE DE19919933A patent/DE19919933A1/de not_active Withdrawn
-
2000
- 2000-04-26 AT AT00108864T patent/ATE298071T1/de not_active IP Right Cessation
- 2000-04-26 EP EP00108864A patent/EP1050728B1/de not_active Expired - Lifetime
- 2000-04-26 DE DE50010546T patent/DE50010546D1/de not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4088464A (en) * | 1975-03-26 | 1978-05-09 | S.I.A.D. Societa Italiana Acetilene E Derivati | Method and apparatus with a single rectifying column for air fractionation |
US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
DE4030750A1 (de) * | 1990-09-28 | 1992-04-02 | Linde Ag | Verfahren und vorrichtung zur tieftemperaturzerlegung von luft |
EP0584420A1 (de) * | 1992-08-28 | 1994-03-02 | Air Products And Chemicals, Inc. | Einsäulenluftzerlegungszyklus und dessen Integration in Gasturbinen |
Also Published As
Publication number | Publication date |
---|---|
EP1050728B1 (de) | 2005-06-15 |
DE50010546D1 (de) | 2005-07-21 |
ATE298071T1 (de) | 2005-07-15 |
DE19919933A1 (de) | 2000-11-02 |
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