DE102006027650A1 - Method for cryogenic air separation, involves discharging of deep frozen liquid from external source into single column or into head condenser and feed air is condensed and discharged in single column - Google Patents
Method for cryogenic air separation, involves discharging of deep frozen liquid from external source into single column or into head condenser and feed air is condensed and discharged in single column Download PDFInfo
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- DE102006027650A1 DE102006027650A1 DE102006027650A DE102006027650A DE102006027650A1 DE 102006027650 A1 DE102006027650 A1 DE 102006027650A1 DE 102006027650 A DE102006027650 A DE 102006027650A DE 102006027650 A DE102006027650 A DE 102006027650A DE 102006027650 A1 DE102006027650 A1 DE 102006027650A1
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- single column
- feed air
- top condenser
- compressor
- process stream
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 title claims abstract description 19
- 238000000926 separation method Methods 0.000 title claims abstract description 8
- 238000007599 discharging Methods 0.000 title abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 12
- 238000001704 evaporation Methods 0.000 claims description 9
- 230000008020 evaporation Effects 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 206010061217 Infestation Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- F25J3/044—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
- 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
- F25J3/04006—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
- F25J3/04054—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 of air
-
- 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
- F25J3/0406—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 of nitrogen
-
- 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
- F25J3/04254—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using the cold stored in external cryogenic fluids
-
- 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
-
- 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
- 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
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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
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/42—Nitrogen
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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
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream being 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
Description
Die Erfindung betrifft ein Verfahren zur Tieftemperaturzerlegung von Luft gemäß dem Oberbegriff des Patentanspruchs 1.The The invention relates to a process for the cryogenic separation of Air according to the generic term of claim 1
Derartige Einsäulenverfahren stellen eine bekannte Methode für die Erzeugung gasförmigen Stickstoffs dar. Je nach Bedarf des Verbrauchers des gasförmigen Stickstoffs wird die Einzelsäule dabei unter einem Druck von beispielsweise 6 bis 16 bar, betrieben. Der in einem ersten Prozessstrom vorhandene Druck wird durch arbeitsleistende Entspannung in mechanische Energie umgewandelt, mit der ein Kaltverdichter für einen zweiten Prozessstrom betrieben werden kann. Um außerdem die Prozesskälte zu erzeugen, die zum Ausgleich von Austausch- und Isolationsverlusten benötigt wird, wurde bisher eine zweite Entspannungsmaschine genutzt, die ihre mechanische Energie im Warmen abgibt.such Einsäulenverfahren make a known method for the production of gaseous nitrogen Depending on the needs of the consumer of the gaseous nitrogen is the Single column while under a pressure of for example 6 to 16 bar operated. The existing in a first process stream pressure is due to work Relaxation transformed into mechanical energy, with the use of a cold compressor for one second process stream can be operated. In addition, the process cooling to compensate for exchange and insulation losses needed is, was previously used a second relaxation machine, the give off their mechanical energy while warm.
Unter "Kaltverdichter" wird hier ein Verdichter verstanden, der bei einer Temperatur betrieben wird, die unter der Umgebungstemperatur liegt; seine Eintrittstemperatur liegt bei 250 K oder weniger, vorzugsweise bei 90 K oder weniger, insbesondere bei 100 K oder weniger.By "cold compressor" is meant here a compressor, which is operated at a temperature below ambient temperature lies; its inlet temperature is 250 K or less, preferably at 90 K or less, especially at 100 K or less.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art und eine entsprechende Vorrichtung anzugeben, die wirtschaftlich besonders günstig sind.Of the Invention is based on the object, a method of the initially specify type and a corresponding device, the economically particularly favorable are.
Diese Aufgabe wird dadurch gelöst, dass eine tiefkalte Flüssigkeit aus einer externen Quelle in die Einzelsäule und/oder in den Kopfkondensator eingeleitet wird. Damit entfällt der entsprechende Aufwand für bewegliche Apparate, der bisher zur Erzeugung der Prozesskälte betrieben wurde. Es ist ferner möglich, die gesamte mechanische Energie, die bei der arbeitsleistenden Entspannung des Restgasstroms gewonnen wird, zum Antrieb des ersten Nachverdichters einzusetzen.These Task is solved by that a deep cold liquid introduced from an external source in the single column and / or in the top condenser becomes. This is eliminated the corresponding expense for mobile apparatus, previously operated to generate process refrigeration has been. It is also possible all the mechanical energy involved in work-relaxing of the residual gas stream is obtained to drive the first after-compressor use.
Unter einer "externen Quelle" wird eine Quelle für Flüssigkeit verstanden, die nicht aus einem Produkt der Einzelsäule erzeugt worden ist. Dabei kann es sich zum Beispiel um einen Flüssigtank für Stickstoff oder Sauerstoff handeln, der mindesten s teilweise mittels Tankwagens oder einer Pipeline mit Flüssigkeit befällt wird, die in einer anderen Luftzerlegungsanlage oder in einer separaten Verflüssigungsanlage erzeugt worden ist.Under an "external Source "becomes one Source for liquid understood that does not produce from a product of the single column has been. This may be, for example, a liquid tank for nitrogen or oxygen, at least s partly by tanker or a pipeline with liquid befalls that is in another air separation plant or in a separate air separation plant liquefaction plant has been generated.
Vorzugsweise sind die Entspannungsmaschine und der erste Nachverdichter mechanisch gekoppelt, insbesondere über eine gemeinsame Welle.Preferably Both the expansion machine and the first after-compressor are mechanical coupled, in particular via a common wave.
Es ist günstig, wenn mindestens ein Teil der Einsatzluft stromaufwärts ihrer Einleitung in die Einzelsäule als der zweite Prozessstrom in dem Kaltverdichter nachverdichtet wird. Stromabwärts des Hauptluftverdichters wird hierbei die gesamte Einsatzluft oder ein Teil davon auf einen Druck gebracht, der über dem Austrittsdruck des Hauptluftverdichters liegt.It is cheap, if at least part of the feed air upstream of their Introduction to the single column as the second process stream in the cold compressor recompressed becomes. downstream the main air compressor is here the total feed air or a part of it brought to a pressure which is above the outlet pressure of the Main air compressor is located.
Grundsätzlich kann in dem ersten Nachverdichter die gesamte Einsatzluft nachverdichtet werden. In vielen Fällen ist es aber günstiger, wenn nur ein erster Teil der Einsatzluft in dem ersten Nachverdichter nachverdichtet wird, ein zweiter Teil der Einsatzluft in einem zweiten Nachverdichter nachverdichtet wird und beide nachverdichteten Teile der Einsatzluft in die Einzelsäule eingeleitet werden. Damit braucht die Gesamtluft nur auf den Eintrittsdruck der beiden Nachverdichter verdichtet zu werden, also auf ein Niveau, das unterhalb des Betriebsdrucks der Einzelsäule liegt. Die beiden Nachverdichter überwinden dabei beispielsweise ein Druckverhältnis von 1,5 bis 2,5, vorzugsweise 1,6 bis 2,2. Der zweite Nachverdichter kann beispielsweise einen gemeinsamen Antrieb mit dem Hauptluftverdichter aufweisen, in dem die Gesamtluft verdichtet wird, beispielsweise indem er durch die letzte Stufe einer Kombimaschine gebildet wird, deren übrige Stufen den Hauptluftverdichter darstellen. Alternativ kann der zweite Nachverdichter einen separaten Antrieb aufweisen.Basically in the first booster, the total feed air recompressed become. In many cases but is it cheaper, if only a first part of the feed air in the first booster is recompressed, a second part of the feed air in a second After-compressor is recompressed and both recompressed parts the feed air into the single column be initiated. Thus, the total air only needs the inlet pressure of the two re-compressors to be compacted, so to a level which is below the operating pressure of the single column. Overcome the two boosters while, for example, a pressure ratio of 1.5 to 2.5, preferably 1.6 to 2.2. The second after-compressor can, for example, a have common drive with the main air compressor, in the the total air is compressed, for example by passing through the last stage of a combination machine is formed, the remaining stages represent the main air compressor. Alternatively, the second after-compressor have a separate drive.
Vorzugsweise wird der erste Prozessgasstrom durch ein Restgas aus einem Kopfkondensator der Einzelsäule gebildet, wobei eine sauerstoffangereicherte Flüssigkeit aus der Einzelsäule in den Verdampfungsraum eines Kopfkondensators geleitet und dort mindestens teilweise verdampft wird, ein Restgasstrom aus dem Verdampfungsraum des Kopfkondensators abgezogen wird, der Restgasstrom als der erste Prozessstrom in der Entspannungsmaschine arbeitsleistend entspannt wird, ein gasförmiger Strom aus dem oberen Bereich der Einzelsäule in den Verflüssigungsraum des Kopfkondensators geleitet und dort mindestens teilweise verflüssigt wird und Flüssigkeit aus dem Verflüssigungsraum des Kopfkondensators abgezogen und mindestens teilweise als Rücklauf in die Einzelsäule eingespeist wird.Preferably is the first process gas stream through a residual gas from a top condenser Single column formed, wherein an oxygen-enriched liquid from the single column in the Evaporating space of a top condenser passed and there at least is partially evaporated, a residual gas stream from the evaporation chamber of the top condenser is withdrawn, the residual gas flow as the first Process stream in the expansion machine work-performing relaxed becomes, a gaseous Stream from the upper part of the single column into the liquefaction room of the Head condenser is passed and there at least partially liquefied and liquid from the liquefaction room withdrawn from the top condenser and at least partially as reflux in the single column is fed.
Unter "Kopfkondensator" wird hier ein K_V verstanden, der einen Verflüssigungsraum und einen Verdampfungsraum aufweist, die miteinander in indirekter WATbeziehung stehen. Der Kopfkondensator kann in demselben Behälter wie die Einzelsäule oder in einem separaten Behälter angeordnet sein.By "top condenser" is meant here a K_V, the one liquefaction room and an evaporation space, which in indirect WAT relationship stand. The top condenser can be in the same container as the single column or in a separate container be arranged.
Das erfindungsgemäße Verfahren ist besonders dann günstig, wenn der Betriebsdruck der Einzelsäule 8 bar oder mehr, insbesondere 9 bar oder mehr, insbesondere 10 bar oder mehr beträgt. Unter "Betriebsdruck der Einzelsäule" wird hier der Druck im Kopf dieser Kolonne verstanden.The inventive method is particularly favorable when the operating pressure of A Spine column 8 bar or more, in particular 9 bar or more, in particular 10 bar or more. By "operating pressure of the single column" is meant here the pressure in the head of this column.
Die Erfindung betrifft außerdem eine Vorrichtung zur Tieftemperaturzerlegung von Luft gemäß Patentanspruch 7.The Invention also relates a device for cryogenic separation of air according to claim 7th
Die Erfindung sowie weitere Einzelheiten der Erfindung werden im Folgenden anhand von in den Zeichnungen schematisch dargestellten Ausführungsbeispielen näher erläutert. Hierbei zeigen:The Invention and further details of the invention are hereinafter Based on schematically illustrated in the drawings embodiments explained in more detail. in this connection demonstrate:
Luft
Der
erste Teilstrom
Der
zweite Teilstrom
Die
Sumpfflüssigkeit
der Einzelsäule
wird als "sauerstoffangereicherte
Flüssigkeit"
Ein
Teil
Ein
gasförmiger
Restgasstrom
Die
Entspannungsmaschine
Die
Prozesskälte
wird durch eine Flüssigkeit aus
einer externen Quelle zugeführt,
indem flüssiger Stickstoff
In
dem Ausführungsbeispiel
von
In
Abweichend
von
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102006027650A DE102006027650A1 (en) | 2006-06-14 | 2006-06-14 | Method for cryogenic air separation, involves discharging of deep frozen liquid from external source into single column or into head condenser and feed air is condensed and discharged in single column |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006027650A DE102006027650A1 (en) | 2006-06-14 | 2006-06-14 | Method for cryogenic air separation, involves discharging of deep frozen liquid from external source into single column or into head condenser and feed air is condensed and discharged in single column |
Publications (1)
Publication Number | Publication Date |
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DE102006027650A1 true DE102006027650A1 (en) | 2007-02-01 |
Family
ID=37650491
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DE102006027650A Withdrawn DE102006027650A1 (en) | 2006-06-14 | 2006-06-14 | Method for cryogenic air separation, involves discharging of deep frozen liquid from external source into single column or into head condenser and feed air is condensed and discharged in single column |
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DE (1) | DE102006027650A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008064117A1 (en) | 2008-12-19 | 2009-05-28 | Linde Ag | Air dissecting method for distilling column system, involves withdrawing liquid rinsing stream from lower area of wash column, where cooled auxiliary air flow is essentially liquid-free during introduction into wash column |
EP2236964A1 (en) | 2009-03-24 | 2010-10-06 | Linde AG | Method and device for low-temperature air separation |
WO2015003808A3 (en) * | 2013-07-11 | 2015-09-24 | Linde Aktiengesellschaft | Method for producing at least one air product, air separation system, method and device for producing electrical energy |
US10794630B2 (en) | 2017-08-03 | 2020-10-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for separating air by cryogenic distillation |
-
2006
- 2006-06-14 DE DE102006027650A patent/DE102006027650A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008064117A1 (en) | 2008-12-19 | 2009-05-28 | Linde Ag | Air dissecting method for distilling column system, involves withdrawing liquid rinsing stream from lower area of wash column, where cooled auxiliary air flow is essentially liquid-free during introduction into wash column |
EP2236964A1 (en) | 2009-03-24 | 2010-10-06 | Linde AG | Method and device for low-temperature air separation |
WO2015003808A3 (en) * | 2013-07-11 | 2015-09-24 | Linde Aktiengesellschaft | Method for producing at least one air product, air separation system, method and device for producing electrical energy |
US10794630B2 (en) | 2017-08-03 | 2020-10-06 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method and device for separating air by cryogenic distillation |
US10866024B2 (en) | 2017-08-03 | 2020-12-15 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Device and method for separating air by cryogenic distillation |
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