DE102008060783A1 - Method and device for decomposing air - Google Patents
Method and device for decomposing air Download PDFInfo
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- DE102008060783A1 DE102008060783A1 DE102008060783A DE102008060783A DE102008060783A1 DE 102008060783 A1 DE102008060783 A1 DE 102008060783A1 DE 102008060783 A DE102008060783 A DE 102008060783A DE 102008060783 A DE102008060783 A DE 102008060783A DE 102008060783 A1 DE102008060783 A1 DE 102008060783A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/0476—Vacuum pressure swing adsorption
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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
- F25J3/04248—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
- F25J3/0426—The cryogenic component does not participate in the fractionation
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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
- F25J3/04636—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 hybrid air separation unit, e.g. combined process by cryogenic separation and non-cryogenic separation techniques
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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
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/0466—Producing crude argon in a crude argon column as a parallel working rectification column or auxiliary column system in a single pressure main column system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/12—Oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/18—Noble gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/74—Refluxing the column with at least a part of the partially 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
-
- 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
- F25J2210/50—Oxygen
-
- 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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/50—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being oxygen
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
Das Verfahren und die Vorrichtung dienen zur Zerlegung von Luft. Luft (1) wird in eine Adsorptionstrenneinheit (2) eingeführt, die mit Vakuum-Druckwechsel betrieben wird. Der Adsorptionstrenneinheit (2) wird ein sauerstoffreicher Strom (3) entnommen. Der sauerstoffreiche Strom (3, 13, 9, 11) wird in eine Tieftemperatur-Rektifiziereinheit eingeleitet und dort in einen Sauerstoffstrom (14, 15, 26, 19, 24, 20, 21) und in einen Argonproduktstrom (31) getrennt.The method and apparatus are for the separation of air. Air (1) is introduced into an adsorption separation unit (2) which is operated with vacuum pressure change. The adsorption separation unit (2) is taken from an oxygen-rich stream (3). The oxygen-rich stream (3, 13, 9, 11) is introduced into a cryogenic rectification unit where it is separated into an oxygen stream (14, 15, 26, 19, 24, 20, 21) and into an argon product stream (31).
Description
Die Erfindung betrifft ein Verfahren zur Zerlegung von Luft, bei dem Luft in eine Adsorptionstrenneinheit eingeführt wird, die mit Vakuum-Druckwechsel betrieben wird, und der Adsorptionstrenneinheit ein sauerstoffreicher Strom entnommen wird.The The invention relates to a process for the separation of air, in which Air is introduced into an adsorption separation unit with vacuum pressure changes is operated, and the Adsorptionstrenneinheit an oxygen-rich Power is taken.
Ausgangspunkt der Erfindung ist also eine so genannte VPSA-Anlage (vacuum Pressure swing adsorption) zur Gewinnung von Sauerstoff. Solche Anlagen liefern einen sauerstoffreichen Strom, der zum Beispiel etwa 90% Sauerstoff enthält.starting point The invention is therefore a so-called VPSA system (vacuum pressure swing adsorption) for the production of oxygen. Deliver such systems an oxygen-rich stream, for example, about 90% oxygen contains.
Der Erfindung liegt daher die Aufgabe zugrunde, eine derartige Anlage besonders effizient zu betreiben.Of the Invention is therefore the object of such a system to operate particularly efficiently.
Diese Aufgabe wird dadurch gelöst, dass der sauerstoffreiche Strom in eine Tieftemperatur-Rektifiziereinheit eingeleitet und dort in einen Sauerstoffstrom und in einen Argonproduktstrom getrennt wird.These Task is solved by that the oxygen-rich stream into a cryogenic rectification unit introduced and there in an oxygen stream and in an argon product stream is disconnected.
Der sauerstoffreiche Strom aus der VPSA-Anlage führt auch den Großteil des in der Luft enthaltenen Argons mit sich. Dies wurde bisher als nicht störender Bestandteil des Sauerstoffprodukts abgeführt, das aber auch keinen technischen oder wirtschaftlichen Nutzen bringt. Im Rahmen der Erfindung wurde nun ein Verfahren entwickelt, das die Gewinnung des in dem VPSA-Produkt enthaltenen Argons als nutzbringendes Produkt ermöglicht. Hierzu wird eine Kombination des nichtkryogenen VPSA-Verfahrens zur Stickstoff-Sauerstoff-Trennung mit einem Tieftemperatur-Rektifizierverfahren zur Sauerstoff-Argon-Trennung eingesetzt.Of the Oxygen-rich electricity from the VPSA plant also carries the bulk of the Argon in the air. This has not been considered yet disturbing Part of the oxygen product dissipated, but also no technical or economic benefits. Within the scope of the invention now a process is being developed which involves the recovery of the product in the VPSA argon contained as a beneficial product. This is a combination of the non-cryogenic VPSA method for nitrogen-oxygen separation with a cryogenic rectification process used for oxygen-argon separation.
Die Tieftemperatur-Rektifiziereinheit ist vorzugsweise als Zwei-Säulen-System ausgebildet. Es weist eine erste Trennsäule und eine zweite Trennsäule auf, wobei der sauerstoffreiche Strom in die erste Trennsäule eingeleitet wird, aus dem unteren Bereich der ersten Trennsäule eine flüssige Fraktion abgezogen wird, im oberen Bereich der ersten Trennsäule ein argonangereicherter Strom gewonnen wird, der argonangereicherte Strom in die zweite Trennsäule eingeleitet wird und der Argonproduktstrom aus dem unteren Bereich der zweiten Trennsäule entnommen wird.The Cryogenic rectification unit is preferably as a two-column system educated. It has a first separation column and a second separation column, wherein the oxygen-rich stream is introduced into the first separation column is withdrawn from the lower region of the first separation column, a liquid fraction, in the upper part of the first separation column an argon-enriched Electricity is recovered, the argon-enriched electricity in the second separation column is introduced and the argon product stream from the lower region taken from the second separation column becomes.
Die erste Trennsäule dient zur Erzeugung eines im Wesentlichen sauerstofffreien argonangereicherten Kopffraktion, die jedoch noch leichter flüchtige Komponenten, insbesondere Stickstoff, enthält. Dieser Stickstoff wird in der zweiten Trennsäule über Kopf als Restgas abgetrennt. Im Sumpf fällt ein reines Argonprodukt an.The first separation column serves to generate a substantially oxygen-free argon-enriched Top fraction, however, even more volatile components, in particular Nitrogen, contains. This Nitrogen is separated in the second separation column overhead as residual gas. Falling in the swamp a pure argon product.
Es ist günstig, wenn der sauerstoffangereicherte Strom stromaufwärts seiner Einleitung in die erste Trennsäule mindestens teilweise kondensiert wird. Die dabei erzeugte Flüssigkeit wird dann der ersten Trennsäule an einer Zwischenstelle zugeführt.It is cheap, when the oxygen-enriched stream upstream of its introduction into the first separation column at least partially condensed. The generated liquid then becomes the first separation column supplied at an intermediate point.
Die erste Trennsäule kann einen als Kondensator-Verdampfer ausgebildeten Sumpfverdampfer aufweisen. In diesem Fall wird die Kondensation des sauerstoffangereicherten Stroms vorzugsweise in diesem Sumpfverdampfer durchgeführt.The first separation column may comprise a sump evaporator designed as a condenser-evaporator. In this case, the condensation of the oxygen-enriched Streams preferably carried out in this bottom evaporator.
Es ist außerdem günstig, wenn die erste Trennsäule einen als Kondensator-Verdampfer ausgebildeten Kopfkondensator aufweist und in dem Kopfkondensator ein erstes flüssiges Kühlmedium verdampft wird, wobei als erstes Kühlmedium mindestens ein Teil der aus dem unteren Bereich der ersten Trennsäule abgezogenen flüssigen Fraktion und/oder eine Flüssigkeit aus einer externen Quelle eingesetzt wird.It is also Cheap, when the first separation column one as a condenser-evaporator has trained top condenser and in the top condenser a first liquid Cooling medium evaporates is, as the first cooling medium at least a portion of the withdrawn from the lower region of the first separation column liquid Fraction and / or a liquid from an external source.
Grundsätzlich kann jede tiefkalte externe Flüssigkeit von außerhalb der Rektifiziereinheit als einziges Kühlmittel eingesetzt werden, zum Beispiel flüssiger Stickstoff.Basically any deep-frozen external liquid from outside the rectification unit are used as the only coolant, for example, more fluid Nitrogen.
In der Regel ist es jedoch vorteilhafter, mindestens einen Teil der Sumpfflüssigkeit der ersten Trennsäule zu diesem Zweck zu verdampfen und damit interne Kälte zu nutzen. Die Sumpfflüssigkeit der ersten Trennsäule reicht aber häufig als nicht aus, um den Kopfkondensator der ersten Trennsäule ausreichend zu kühlen. In diesem Fall wird ein Gemisch aus der Sumpfflüssigkeit und einer externen Flüssigkeit verwendet. In diesem Fall sollte als externe Flüssigkeit flüssiger Sauerstoff eingesetzt, der eine ähnliche oder höhere Reinheit als die Sumpfflüssigkeit der ersten Trennsäule aufweist.In As a rule, however, it is more advantageous to use at least a part of bottoms liquid the first separation column to evaporate for this purpose and thus to use internal cold. The bottoms liquid the first separation column but often enough as not sufficient to make the top condenser of the first column sufficient to cool. In this case, a mixture of the bottoms liquid and an external liquid used. In this case, liquid oxygen should be used as the external liquid, the one similar or higher Purity as the bottoms liquid the first separation column having.
Das in dem Kopfkondensator verdampfte Kühlmedium kann als gasförmiges Sauerstoffprodukt abgezogen werden, unabhängig davon, ob als Kühlmedium Sumpfflüssigkeit, externe Flüssigkeit oder ein Gemisch aus beiden eingesetzt wird.The Cooling medium evaporated in the top condenser can be withdrawn as a gaseous oxygen product become independent of it, whether as a cooling medium Bottoms liquid, external fluid or a mixture of both is used.
In einer vorteilhaften Ausgestaltung der Erfindung weist die zweite Trennsäule einen als Kondensator-Verdampfer ausgebildeten Kopfkondensator auf, und in dem Kopfkondensator wird ein zweites flüssiges Kühlmedium verdampft, wobei als zweites Kühlmedium ein Teil der aus dem unteren Bereich der ersten Trennsäule abgezogenen flüssigen Fraktion eingesetzt wird.In an advantageous embodiment of the invention, the second separation column a designed as a condenser evaporator overhead condenser, and in the top condenser a second liquid cooling medium is evaporated, using as second cooling medium a part of the withdrawn from the lower part of the first separation column liquid Fraction is used.
Es ist günstig, wenn das verdampfte erste Kühlmedium aus dem Kopfkondensator der ersten Trennsäule und/oder das verdampfte zweite Kühlmedium aus dem Kopfkondensator der zweiten Trennsäule als Sauerstoffproduktstrom abgezogen werden. Damit wird im Rahmen der Erfindung ein Sauerstoffprodukt erzeugt, das deutlich weniger Argon und Stickstoff enthält als der sauerstoffreiche Strom aus der VPSA-Anlage.It is favorable if the evaporated first cooling medium from the top condenser of the first separation column and / or the vaporized second cooling medium are withdrawn from the top condenser of the second separation column as an oxygen product stream. This is in the context of the invention, a sour produced substance product, which contains significantly less argon and nitrogen than the oxygen-rich stream from the VPSA plant.
Der sauerstoffreiche Strom kann vor seiner Einleitung in die erste Trennsäule beziehungsweise in deren Sumpfverdampfer durch indirekten Wärmeaustausch mit dem Sauerstoffproduktstrom abgekühlt werden. Damit wird der Einsatzstrom für die Rektifiziereinheit auf günstige Weise auf die benötigte niedrige Temperatur abgekühlt.Of the Oxygen-rich stream can be prior to its introduction into the first separation column or in their bottom evaporator by indirect heat exchange with the oxygen product stream chilled become. Thus, the feed stream for the rectification unit on favorable Way to the needed cooled low temperature.
Vorzugsweise weist die zweite Trennsäule einen Sumpfverdampfer aufweist, in dem mindestens ein Teil der aus dem unteren Bereich der ersten Trennsäule abgezogenen flüssigen Fraktion als Heizmedium eingesetzt wird. Dieser Sumpfverdampfer ist also nicht als Kondensator-Verdampfer ausgebildet. Vielmehr gibt die hier als Heizmedium eingesetzte Flüssigkeit fühlbare Wärme ab. Das gekühlte Heizmedium kann anschließend als Kühlmedium in einer der Kopfkondensatoren eingesetzt werden.Preferably has the second separation column one Sump evaporator, in which at least a portion of the lower portion of the first separation column withdrawn liquid fraction is used as heating medium. This sump evaporator is so not designed as a condenser-evaporator. Rather, the Liquid used here as a heating medium sensible heat. The cooled heating medium can subsequently as a cooling medium be used in one of the head capacitors.
Die Erfindung betrifft außerdem eine Vorrichtung zur Tieftemperaturzerlegung von Luft gemäß dem Patentanspruch 10.The Invention also relates a device for cryogenic separation of air according to the claim 10th
Die Erfindung sowie weitere Einzelheiten der Erfindung werden im Folgenden anhand eines in der Zeichnung schematisch dargestellten Ausführungsbeispiels näher erläutert.The Invention and further details of the invention are hereinafter based on an embodiment schematically shown in the drawing explained in more detail.
Atmosphärische Luft
wird Adsorptionstrenneinheit
Der
sauerstoffreiche Strom
Vom
Sumpf der ersten Trennsäule
Das
Kopfgas
Die
zweite Trennsäule
Über die
Leitungen
Ein
Teil
Claims (11)
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DE102008060783A DE102008060783A1 (en) | 2008-12-05 | 2008-12-05 | Method and device for decomposing air |
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DE102008060783A DE102008060783A1 (en) | 2008-12-05 | 2008-12-05 | Method and device for decomposing air |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017101776A1 (en) * | 2015-12-16 | 2017-06-22 | 新疆天辰深冷技术有限公司 | External cooling single-stage rectification air separation device and method |
EP3456703A1 (en) * | 2017-09-13 | 2019-03-20 | Linde Aktiengesellschaft | Method and assembly for producing ethylene |
-
2008
- 2008-12-05 DE DE102008060783A patent/DE102008060783A1/en not_active Withdrawn
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017101776A1 (en) * | 2015-12-16 | 2017-06-22 | 新疆天辰深冷技术有限公司 | External cooling single-stage rectification air separation device and method |
EP3456703A1 (en) * | 2017-09-13 | 2019-03-20 | Linde Aktiengesellschaft | Method and assembly for producing ethylene |
WO2019053122A1 (en) * | 2017-09-13 | 2019-03-21 | Linde Aktiengesellschaft | Method and plant for producing ethylene |
CN111094221A (en) * | 2017-09-13 | 2020-05-01 | 林德股份公司 | Process and apparatus for producing ethylene |
EA038467B1 (en) * | 2017-09-13 | 2021-09-01 | Линде Акциенгезельшафт | Method for producing ethylene |
US11130722B2 (en) | 2017-09-13 | 2021-09-28 | Linde Aktiengesellschaft | Method and plant for producing ethylene |
AU2018333572B2 (en) * | 2017-09-13 | 2023-04-20 | Linde Aktiengesellschaft | Method and plant for producing ethylene |
CN111094221B (en) * | 2017-09-13 | 2023-06-09 | 林德股份公司 | Process and apparatus for producing ethylene |
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