DE752439C - Process for the production of compressed oxygen - Google Patents
Process for the production of compressed oxygenInfo
- Publication number
- DE752439C DE752439C DEM156752D DEM0156752D DE752439C DE 752439 C DE752439 C DE 752439C DE M156752 D DEM156752 D DE M156752D DE M0156752 D DEM0156752 D DE M0156752D DE 752439 C DE752439 C DE 752439C
- Authority
- DE
- Germany
- Prior art keywords
- pressure
- oxygen
- air
- production
- compressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- 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
- F25J3/04078—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
-
- 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
- F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
-
- 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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
Description
Verfahren zur Erzeugung von komprimiertem Sauerstoff Es ist bekannt, komprimierte Gase, besonders Sauerstoff, nach dem Verfahren der Druckvergasung zu erzeugen, wobei ohne Zuhilfenahme eines- Kompressors durch Verdampfung des verflüssigten Gases in einem abgeschlossenen Raum der für die- Füllung der Vorratsbehälter nötige Druck erzeugt wird. Soll dieses Verfahrnen im fortlaufenden Betrieb durchgeführt werden, so ist dazu eine Pumpe nötig, durch die der flüssige Sauerstoff dauernd gegen,den bgewünschberr Druck gefördert wird.Process for the production of compressed oxygen It is known compressed gases, especially oxygen, according to the process of pressure gasification generate, without the aid of a compressor by evaporation of the liquefied Gas in a closed space that is necessary for filling the storage container Pressure is generated. Should this procedure be carried out in continuous operation a pump is needed to keep the liquid oxygen flowing against the desired pressure is promoted.
Zweckmäßig wird die Kälte des verflüssigten Gases zur Kühlung des zu verflüssigenden oder zu zerlegenden Gases benutzt. In diesem Fall strömt dann, also das verflüssigte Gas dürch,die Austaus.cher wieder zurück, wobei es verdampft wird und schließlich in die Vorratsbatterie gelangt. Bisher konnten jedoch die Vorteile des fortlaufenden Betriebes nicht voll zur Wirkung kommen, da in Abhängigkeit vom Druck .in der Vorratsbatterie auch der Druck des verdampfenden Sauerstoffs und damit auch seine Temperatur schwankte, was zu: einer dauernden Umregelung des Apparates führte.The cold of the liquefied gas is useful for cooling the used to liquefy or decompose gas. In this case then flows So the liquefied gas through, the exchangers back again, whereby it evaporates and finally gets into the storage battery. So far, however, the benefits could of continuous operation do not come fully into effect, as depending on the Pressure. In the storage battery also the pressure of the evaporating oxygen and thus its temperature also fluctuated, which led to a constant readjustment of the apparatus led.
Um diesen Übelstand zu beseitigen. wird erfindungsgemäß in die Leitung zwischen dem Awstausther und der Vorratsbatterie ein Ventil oder eine sonstige Drosselvorrichtung eingebaut, die .den Druck des verdampfenden Sauerstoffs unabhängig vom Druck in :der Vorratsbatterie immer auf nahezu konstanter Höhe hält. Besonders vorteilhaft ist es dabei, den Druck immer etwas höher als den kritischen Druck zu halten.To remedy this evil. is according to the invention in the line a valve or some other throttle device between the Awstausther and the storage battery built-in, the .the pressure of the evaporating oxygen independent of the pressure in : keeps the storage battery at an almost constant level. Particularly beneficial is it about that Pressure always slightly higher than the critical pressure to keep.
Eine beispielhafte Anordnung ist in .der Abbildung gezeigt.An exemplary arrangement is shown in the figure.
B,ei --1. tritt die zu zerlegende Luft @@erdichtet auf einen Druck von 2o bis roo atü in den :1#,usta,uscher B ein, in dem sie in bekannter Weise durch den rückströmenden kalten Stickstoff und durch den rückströmenden komprimierten kalten Sauerstoff gekühlt und getrocknet wird. Die Luft wird dann weiter im Gegen-9 trömer C durch die anfallenden Zerlegungsprodukte. gekühlt und tritt sodann in die im Sauerstoff badD 1 iegendeVerdampferschlangeE ,ein. Schließlich wird sie im Ventil F auf den Druck in der Zerlegungskolonne- lIT entspannt. In dieser wird sodann die Luft durch einfache Rektifikation in reinen Sauerstoff und in Stickstoff von mäßiger Reinheit zerlegt. In bekannter Weise kaim daher der Stickstoff dazu benutzt werden, den gleichzei-tig-anfalletrdeti flüssigen Sauerstoff im Gegenströmer G auf etwa zoc unter seine Siedetemperatur zu unterkühlen. Die restliche im Stickstoff enthaltene Kälte wird sodann in bekannter Weise in dem Gegenströmer C und B auf die ankomtnende Luft übertragen.B, ei --1. the air to be decomposed occurs @@ fictitious on a pressure from 2o to roo atü in the: 1 #, usta, uscher B, in which they go through in the known manner the backflowing cold nitrogen and compressed by the backflowing cold oxygen is cooled and dried. The air then continues in the counter-9 trömer C due to the decomposition products. cooled and then enters the in the oxygen bathD 1 lying evaporator coilE, a. Eventually she gets in the valve F released to the pressure in the decomposition column lIT. In this then the Air by simple rectification into pure oxygen and nitrogen of moderate Decomposed of purity. As is known, nitrogen can therefore be used to the simultaneous-incurring liquid oxygen in the countercurrent G to about zoc to subcool below its boiling temperature. The rest contained in nitrogen Cold is then in a known manner in the countercurrent C and B on the arriving Air transfer.
Der bei H aus der Zerlegungskolonne entnommene Sauerstoff tritt nach Durchgang durch den Gegenströmer Gin die Pumpe T ein und wird von ihr in flüssigem Zustand vom Zerlegungsdruck von etwa 1,5 atü auf den gewünsqtiten Druck von z. B. Zoo bis 3oo atü gefördert. Er gibt sodann gleichfalls in den Gegenströmerai C und B seine Kälte an die zu zerlegende Luft ab. Durch die Leitung 1i verläßt er auf etwa die Temperatur der eintretenden Luft angewärmt und unter dem von der Pumpe T erzeugten Druck die Apparatur und kann nun unmittelbar in die Flaschenbatterie eingeleitet werden.The oxygen taken at H from the decomposition column occurs after passage through the countercurrent Gin T the pump and is of it in the liquid state from the cutting pressure of about 1.5 atm to gewünsqtiten pressure of z. B. Zoo funded up to 3oo atü. It then also gives off its cold to the air to be broken up in the countercurrent streams C and B. Through the line 1i it leaves the apparatus warmed to approximately the temperature of the incoming air and under the pressure generated by the pump T and can now be introduced directly into the cylinder battery.
Um trotz des wechselnden Gegendrucks in der Flaschenbatterie in der Apparatur selbst möglichst konstante Verhältnisse aufrechtzuerhalten, wird erfindungsgemäß das Ventil I_ vorgesehen, das beispielsweise so einreguliert wird, daß der Sauerstoff in den Gegenströtnern C und B immer unter dem höchsten für die Füllung der Vorratsbatterien nötigen Druck oder zumindest unter einem über dem kritischen Druck gelegenen Druck steht.Despite the changing back pressure in the cylinder battery in the Maintaining conditions that are as constant as possible for the apparatus itself is in accordance with the invention the valve I_ is provided, which is regulated, for example, so that the oxygen in the counter currents C and B always below the highest for filling the storage batteries necessary pressure or at least below a pressure above the critical pressure stands.
Statt des Ventils L kann auch eine feste Blende verwendet werden, die so bemessen ist, daß der Druck des Sauerstoffs zwischen der Pumpe und dieser Blende immer mindestens dein kritischen Druck entspricht. Es tritt dann keine Verdampfung mehr bei je nach dem Druck wechselnder Temperatur ein, sondern der Sauerstoff geht stetig in den gasförmigen Zustand über. Es ist möglich, dies trotz des variablen Druckes in der Vorratsbatterie durch eine unverstellbare Blende zu erreichen; denn ist der Druck in der Vorratsbatterie klein, so tritt in der Blende eine überkritische Entspannung ein, wobei also die durch die Blende tretende Gasmenge vom Druck hinter der Blende unabhängig ist. Wird dann der Druck in der Flaschenbatterie höher, so verringert sich dementsprechend das Volumen des in der Zeiteinfheit eingefüllten Sauerstoffs, und der Druckabfall in der Blende wird damit immer kleiner. Es gleicht sich also der Druck des Sauerstoffs in den Gegenströniern immer mehr dem Druck in der Batterie an. Es tritt also dann kein Energieverlust durch Drosselung in der Blende mehr ein. Übrigens kann auch die zunächst bei der Drosselung im Ventil I_ oder in der Blende erzeugte Kälte in geeigneter Weise für den Zerlegungsprozeß nutzbar gemacht werden.Instead of the valve L, a fixed orifice can also be used, which is dimensioned so that the pressure of the oxygen between the pump and this The aperture always corresponds to at least your critical pressure. There is then no evaporation more when the temperature changes depending on the pressure, but the oxygen goes steadily in the gaseous state. It is possible to do this in spite of the variable To achieve pressure in the storage battery through a non-adjustable aperture; because If the pressure in the storage battery is low, a supercritical one occurs in the diaphragm Relaxation, with the amount of gas passing through the diaphragm behind from the pressure the aperture is independent. If the pressure in the cylinder battery then increases, so the volume of that which is filled in the unit of time decreases accordingly Oxygen, and the pressure drop in the orifice becomes smaller and smaller. It equals So the pressure of the oxygen in the countercurrent flows more and more to the pressure in the battery. So there is then no loss of energy due to throttling in the Fade in more. Incidentally, the throttling in valve I_ or cold generated in the screen can be used in a suitable manner for the dismantling process be made.
Itn vorliegenden wurde der Einfachheit halber die Anwendung des Erfindungsgedankens auf eine einfache Luftzerlegung beschrieben. Ebensogut läßt sich jedoch auch bei einer mehrfachen 1-uftzerlegurrg der flüssig aus der 1solonne entnommene Sauerstoff in einer 'Pumpe auf den gewünschten Fülldruck für die Flaschenbatterie fördern. Anschließend kann dann wieder seine liülte zur Kühlung der zu zerlegenden Luft verwendet werden.In the present case, for the sake of simplicity, the idea of the invention was applied described on a simple air separation. However, it can also be used just as well a multiple 1-air decomposition of the liquid oxygen withdrawn from the 1-column in a 'pump to the desired filling pressure for the cylinder battery. Then its liülte can be used again to cool the air to be separated will.
Ferner kann das Verfahren auch bei Luft-und Gaszerlegutigsanlagen verwendet werden. bei denen ein Teil der benötigten Kälte durch Entspannung unter äußerer Arbeitsleistung. durch Ammoniakkühlung oder auch auf anderem Weg erzeugt wird. Auch kann der komprimierte Sauerstoff getrennt vom Stickstoff in gesonderten Gegenströmern durch die eintretende Luft erwärmt werden.Furthermore, the method can also be used in air and gas separation plants be used. in which some of the required coldness is achieved through relaxation external work performance. generated by ammonia cooling or in another way will. The compressed oxygen can also be separated from the nitrogen in separate Countercurrents are heated by the incoming air.
In ähnlicher Weise kann das beschriebene Verfahren auch für die Erzeugung anderer Preßgase, z.1>. die Erzeugung von komprimiertem Methan aus Koksgas verwendet werden.In a similar way, the method described can also be used for the generation of other compressed gases, e.g. 1>. used the production of compressed methane from coke gas will.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM156752D DE752439C (en) | 1943-02-11 | 1943-02-11 | Process for the production of compressed oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM156752D DE752439C (en) | 1943-02-11 | 1943-02-11 | Process for the production of compressed oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE752439C true DE752439C (en) | 1953-01-05 |
Family
ID=7337278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM156752D Expired DE752439C (en) | 1943-02-11 | 1943-02-11 | Process for the production of compressed oxygen |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE752439C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280574A (en) * | 1960-10-14 | 1966-10-25 | Linde Ag | High pressure pure gas for preventing contamination by low pressure raw gas in reversing regenerators |
| US3416323A (en) * | 1966-01-13 | 1968-12-17 | Linde Ag | Low temperature production of highly compressed gaseous and/or liquid oxygen |
| US3500651A (en) * | 1966-01-13 | 1970-03-17 | Linde Ag | Production of high pressure gaseous oxygen by low temperature rectification of air |
| DE19526785C1 (en) * | 1995-07-21 | 1997-02-20 | Linde Ag | Method and device for the variable production of a gaseous printed product |
-
1943
- 1943-02-11 DE DEM156752D patent/DE752439C/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3280574A (en) * | 1960-10-14 | 1966-10-25 | Linde Ag | High pressure pure gas for preventing contamination by low pressure raw gas in reversing regenerators |
| US3416323A (en) * | 1966-01-13 | 1968-12-17 | Linde Ag | Low temperature production of highly compressed gaseous and/or liquid oxygen |
| US3500651A (en) * | 1966-01-13 | 1970-03-17 | Linde Ag | Production of high pressure gaseous oxygen by low temperature rectification of air |
| DE19526785C1 (en) * | 1995-07-21 | 1997-02-20 | Linde Ag | Method and device for the variable production of a gaseous printed product |
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