DE1751794A1 - Method for obtaining respiratory oxygen - Google Patents
Method for obtaining respiratory oxygenInfo
- Publication number
- DE1751794A1 DE1751794A1 DE19681751794 DE1751794A DE1751794A1 DE 1751794 A1 DE1751794 A1 DE 1751794A1 DE 19681751794 DE19681751794 DE 19681751794 DE 1751794 A DE1751794 A DE 1751794A DE 1751794 A1 DE1751794 A1 DE 1751794A1
- Authority
- DE
- Germany
- Prior art keywords
- oxygen
- liquid
- respiratory
- gaseous
- air separation
- 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.)
- Pending
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
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
-
- 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
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04036—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling 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
- 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
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
- F25J3/04224—Cores associated with a liquefaction or refrigeration cycle
-
- 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
- F25J3/04472—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
- F25J3/04478—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for controlling purposes, e.g. start-up or back-up procedures
- F25J3/04484—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for controlling purposes, e.g. start-up or back-up procedures for purity control during steady state operation
-
- 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
- F25J3/04472—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
- F25J3/04496—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 the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
-
- 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
- F25J2215/52—Oxygen production with multiple purity O2
-
- 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
- F25J2215/56—Ultra high purity oxygen, i.e. generally more than 99,9% O2
-
- 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
- F25J2245/50—Processes or apparatus involving steps for recycling of process streams the recycled stream being 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
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/50—One fluid being oxygen
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Description
MESSER GRIESHEIM GMBH · EM 2o3 MESSER GRIESHEIM GMBH EM 2o3
17 ζ17 Q Λ17 ζ17 Q Λ
Kennwort: AtmungssauerstoffPassword: respiratory oxygen
Erfinder: Dr. E. A. Rische / K. BaumgärtnerInventor: Dr. E. A. Rische / K. Baumgartner
Verfahren zum Gewinnen von AtmungssauerstoffMethod for obtaining respiratory oxygen
Die Erfindung betrifft ein Verfahren zum Gewinnen von an Kohlenwasserstoffen armem, flüssigen Atmungssauerstoff in Luftzerlegungsanlagen, in welchen gleichzeitig flüssiger und gasförmiger Sauerstoff erzeugt wird.The invention relates to a method for obtaining hydrocarbons poor, liquid respiratory oxygen in air separation plants, in which liquid and gaseous at the same time Oxygen is generated.
An Sauerstoff für Atmungszwecke, insbesondere an sogenannten Höhen-Atmungssauerstoff, der für die Zivil- und Militärluftfahrt benötigt wird, werden hohe Anforderungen hinsichtlich Reinheit und Abwesenheit von übelriechenden Stoffen gestellt. Um ihn wirtschaftlich speichern und transportieren zu können, wird dieser Atmungssauerstoff in flüssigem Aggregatszustand verlangt.Oxygen for respiratory purposes, especially so-called high-altitude breathing oxygen for civil and military aviation is required, high demands are made in terms of purity and the absence of malodorous substances. In order to be able to store and transport it economically, this respiratory oxygen is in a liquid physical state demands.
Die unerwünschten Verunreinigungen gelangen bei der Luftzerlegung auf zwei Wegen in den Sauerstoff. Bei der Sauerstoffherstellung nach dem Hochdruckverfahren wird die Luft in ölgeschmierten Kompressoren verdichtet. Dabei läßt es sich nicht vermeiden, daß Spuren von Schmieröl und von Krackprodukten des Schmieröls, die an den heißen Zylinderwandungen der Kompressoren gebildet werden, über die Wärmeaustauscher und die Zerlegungssäulen in den produzierten Sauerstoff gelangen. Bei der SauerstoffherstsHung nach dem Niederdruckv^rfahren wird zwar diese Art der Verunreinigung ausgeschaltet, da die verarbeitete Luft überhaupt nicht mit Schmieröl in Berührung kommt. Trotzdem erfüllt der erzeugte Sauerstoff häufig nicht die Forderung nach ausreichender Geruchsfreiheit. Die Geruchsstoffe rühren in diesem Fall allein von den überall in der Luft in sehr geringen Konzentrationen vorhandenen Kohlenwasser-The undesired impurities get into the oxygen in two ways during air separation. In the production of oxygen after the high pressure process, the air is lubricated in oil Compressors compressed. It cannot be avoided that traces of lubricating oil and cracked products of the Lubricating oil, which is formed on the hot cylinder walls of the compressors, via the heat exchangers and the separation columns get into the oxygen produced. In the case of oxygen production, the low-pressure method is used although this type of pollution is eliminated, since the processed air does not come into contact with lubricating oil at all comes. In spite of this, the generated oxygen often does not meet the requirement for adequate freedom from odors. In this case, the odorous substances come from all over the place Air in very low concentrations of hydrocarbons
- 2 209809/0514 - 2 209809/0514
BADBATH
stoffen her, wie sie ζ. B. bei Verwesungs- und Verbrennungsprozessen frei werden. Als Anhaltspunkt für den Gehalt von Geruchsstoffen im Sauerstoff dient meist der Methangehalt, der für Höhen-Atmungssauerstoff den Wert 25 ppm nicht überschreiten darf. Dieser Wert wird auch bei Sauerstoff aus Niederdruck-Luftzerlegungsanlagen manchmal überschritten. Das 1st insbesondere dann der Fall, wenn in einem Luftzerlegungsapparat gleichzeitig eine große Menge gasförmiger Sauerstoff zusammen mit einer relativ kleinen Menge an flüssigem Sauerstoff produziert wird, wie es der Fall ist, wenn der gasförmige Sauerstoff in der Hüttenindustrie oder Chemie verwendet wird. Die Entfernung der Geruchsstoffe aus dem flüssigen Sauerstoff ist ziemlich aufwendig, üblich ist es, die Geruchsstoffe in Absorbern zu entfernen.fabrics like them ζ. B. be released during decomposition and combustion processes. As a guide to the content of Odor substances in oxygen are mostly used by the methane content, which for high-altitude respiratory oxygen must not exceed 25 ppm. This value is also derived from oxygen Low pressure air separation units sometimes exceeded. This is particularly the case when a large amount of gaseous gas is simultaneously in an air separation apparatus Oxygen is produced along with a relatively small amount of liquid oxygen, as is the case when the gaseous oxygen is used in the metallurgical industry or chemistry. The removal of the odorous substances from the liquid oxygen is quite time-consuming, it is common to do so To remove odorous substances in absorbers.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Gewinnen von an Kohlenwasserstoffen armem, flüssigen Atmungssauerstoff in Luftzerlegungsanlagen, in welohen gleichzeitig flüssiger und gasförmiger Sauerstoff erzeugt wird, zu schaffen. Nach der Erfindung gelingt dies dadurch, daß als Atmungssauerstoff gewonnener gasförmiger Sauerstoff dient, welcher mit Hilfe von beim Luftzerlegungsprozeß anfallender Kälte verflüssigt wird.The invention is based on the object of a method for obtaining low hydrocarbons, liquid respiratory oxygen in air separation plants, in which at the same time liquid and gaseous oxygen is generated to create. According to the invention, this is achieved in that gaseous oxygen obtained as respiratory oxygen is used, which is also used With the help of the cold resulting from the air separation process, it is liquefied.
Besonders wirtschaftlich läßt sich das erfindungsgemäße Verfahren in Anlagen verwirklichen, die zugleich große Mengen gasförmigen Sauerstoffs neben kleineren Mengen an flüssigem Sauerstoff erzeugen. Dabei wird so verfahren, daß ein Teil des z. B. für hüttentechnische Anwendung erzeugten und komprimierten gasförmigen Sauerstoffs abgezweigt und mit Hilfe von Kälte aus der separat gewonnenen PlUssig-Produktion verflüssigt wird ("Sekundär-FlUssig-Sauerstoff"). Das erfindungsgemäße Verfahren beruht auf der Erkenntnis, daß der gasförmige Produktionsanteil, aus dem dieser "Sekundär-FlUs 3 ig-Säuerst off" gewonnen wird, erheblieh weniger duroh Kohlenwasserstoffe verunreinigt ist als der im Trennapparat anfallende "Primär-Plüsslg-Sauerstoff". Dies erklärt sieh daraus, daß sich die in der Zerlegungsluft enthaltenen Kohlenwasserstoffe wegenThe process according to the invention can be implemented particularly economically in systems which simultaneously use large quantities Generate gaseous oxygen in addition to smaller amounts of liquid oxygen. The procedure is such that a part of z. B. for metallurgical application generated and compressed gaseous oxygen branched off and with the help is liquefied by cold from the separately obtained PlUssig production ("secondary liquid oxygen"). The inventive method is based on the knowledge that the gaseous Production share from which this "secondary fluid 3 ig acid off" is obtained, is considerably less contaminated duroh hydrocarbons than the "primary plus oxygen" occurring in the separator. This is explained by the fact that the Hydrocarbons contained in the separation air because of
209809/0514209809/0514
der höher liegenden Siedepunkte bei der erstmaligen Trennung vorwiegend in der flüssigen Phase ansammeln. Nach R. J. Hodges und R. J. Burch, Cryogenics April 19^7* ist der Gehalt des flüssigen Sauerstoffs an Methan im Gleichgewichtszustand z. B. etwa dreimal so groß wie der des gasförmigen Sauerstoffs.the higher boiling points accumulate predominantly in the liquid phase when they are first separated. According to R. J. Hodges and R. J. Burch, Cryogenics April 19 ^ 7 * is the content of the liquid oxygen to methane in equilibrium z. B. about three times as large as that of gaseous oxygen.
Zwei Ausführungsbeispiele der Erfindung sollen anhand der beigefügten Zeichnungen erläutert werden.Two embodiments of the invention should be based on the attached Drawings are explained.
Es zeigen: .Show it: .
Flg. 1 den einfachen Fall, bei dem geruchsfreier, verdichteter gasförmiger Sauerstoff mit Flüssig-Sauerstoff kondensiert wird, Flg. 1 the simple case in which odorless, compressed gaseous oxygen is condensed with liquid oxygen,
Flg. 2 ein Verfahrensschema, bei dem die Kälte des flüssigen Sauerstoffs, die beim Füllen von Stahlflaschen mit Hilfe einer Hochdruckpumpe anfällt und üblicherweise nicht genutzt wird, zur Verflüssigung von Atmungssauerstoff herangezogen wird. Flg. 2 shows a process scheme in which the coldness of the liquid oxygen, which arises when filling steel cylinders with the aid of a high-pressure pump and is usually not used, is used to liquefy respiratory oxygen.
Bei dem Verfahren nach Fig. 1 ist mit 1 eine Luftzerlegungsanlage bezeichnet, der über Leitung 2 produzierter gasförmiger Sauerstoff entnommen und dem Kompressor 5 zugeführt wird. Hier erfolgt eine Verdichtung auf Jo atü und der so verdichtete Sauerstoff gelangt über Leitung 4 zum Verbraucher. Von dieser Leitung 4 ist eine Leitung 9 abgezweigt, durch welche der zu Atmungszwecken bestimmte Sauerstoff abgenommen wird. Der gleichzeitig erzeugte flüssige Sauerstoff gelangt über Leitung 5 in den Vorratstank 6. Zur Erzeugung von Atnungssauerstoff wird dem Tank 6 über Leitung 7 flüssiger Sauerstoff entnommen, im Wärmeaustauscher 8 verdampft und Über Leitung 12 in die Luftzerlegungsanlage 1 zurückgegeben. Im Wärmeaustauscher 8 wird dabei gleichzeitig der über Leitung 9 eintretende Atmungssauerstoff verflüssigt, mittels Leitung Io abgezogen und durch das Drosselventil 11 in dem Speicher 13 für Atmungssauerstoff entspannt. Die Entspannungs- und Verdampfungsgase werden aus dom Speicher 15 durch Leitung 14 entnommen und in der Luftzorlegungsanlage 1 weiterverwertet (in der Zeichnung nicht dargestellt). In the method according to FIG. 1, 1 is an air separation plant denotes, the gaseous oxygen produced via line 2 is withdrawn and fed to the compressor 5. here there is a condensation on Jo atü and the condensed in this way Oxygen reaches the consumer via line 4. From this line 4, a line 9 is branched off, through which the to Certain oxygen is withdrawn for breathing purposes. The liquid oxygen generated at the same time arrives via a line 5 into the storage tank 6. To generate breathing oxygen, liquid oxygen is taken from the tank 6 via line 7, evaporated in the heat exchanger 8 and returned to the air separation plant 1 via line 12. In the heat exchanger 8 the respiratory oxygen entering via line 9 is simultaneously liquefied, withdrawn via line Io and passed through the throttle valve 11 in the memory 13 for breathing oxygen relaxed. The expansion and evaporation gases are taken from dom storage 15 through line 14 and in the air separation system 1 recycled (not shown in the drawing).
209809/05U - * -209809 / 05U - * -
. -♦- 175179A. - ♦ - 175179A
Bei dem Verfahren gemäß Pig. 2 sind gleiche Anlagenteile mit den gleichen Bezugszahlen wie in Fig. 1 versehen. Auch das Verfahren entspricht zum Teil dem in Fig. 1 beschriebenen, so daß hier nur die davon abweichenden Verfahrensschritte beschrieben werden. Der zu Atmungszwecken bestimmte Sauerstoff gelangt wieder über Leitung 9 und unter einem Druck von Jo atü in den Wärmeaustauscher 8, wo er kondensiert, über Leitung Io und Entspannungsventil 11 gelangt er anschließend in den Speicher 13 für Atmungssauerstoff. Die zur Verflüssigung des Atmungssauerstoffes erforderliche Kälte erhält man beim Füllen von Stahlflaschen mit gewonnenem flüssigen Sauerstoff. Die dabei anfallende Kälte wird üblicherweise nicht genutzt, in Verbindung mit dem Verfahren der Erfindung läßt sie sich jedoch so verwerten, daß sich ein äußerst wirtschaftliches Verfahren zur Herstellung von Atmungssauerstoff ergibt.In the method according to Pig. 2 are the same parts of the system the same reference numerals as in FIG. 1 are provided. The method also corresponds in part to that described in FIG. 1, so that only the procedural steps that differ from this are described here. The oxygen intended for breathing purposes is returned via line 9 and under pressure from Jo atü into the heat exchanger 8, where it condenses, Via line Io and expansion valve 11, it then reaches the reservoir 13 for respiratory oxygen. the The cold required to liquefy the respiratory oxygen is obtained by filling steel cylinders with recovered liquid oxygen. The resulting cold is usually not used, but in connection with the method of the invention it can be utilized in such a way that results in an extremely economical process for the production of respiratory oxygen.
Der zum Abfüllen in Stahlflaschen bestimmte flüssige Sauerstoff aus dem Tank 6 gelangt über Leitung 7 in die Hochdruckpumpe 18, wo er auf den verlangten Flaschendruck komprimiert wird. Durch Leitung 15 wird er dem Wärmeaustauscher 8 zugeleitet, wo er auf eine für die Flaschenfüllung brauchbare Temperatur erwärmt wird und dabei durch Wärmeaustausch den Atmungssauerstoff verflüssigt. Nach Durchlaufen eines Nachwärmers 16 gelangt der Hochdrucksauerstoff schließlich in den FlaschenfUlistand 17.The liquid oxygen intended for filling into steel bottles from the tank 6 reaches the high-pressure pump 18 via line 7, where it is compressed to the required bottle pressure. Through line 15 it becomes the heat exchanger 8, where it is heated to a temperature suitable for filling the bottle and thereby by heat exchange liquefies the respiratory oxygen. After passing through a reheater 16, the high-pressure oxygen finally arrives in the bottle fUlistand 17.
Das erfindungsgemäße Verfahren ist selbstverständlich nicht auf diese Ausführungsbeispiele beschränkt. Es ist weder erforderlich, daß der zur Verflüssigung bestimmte Atmungssaueretoff unter einem Druck von 3o atü steht, noch ist es erforderlich, daß die Verflüssigung des Atraungssauerstoffes durch Wärmeaustausch mit verdampfendem flüssigen Sauerstoff geschieht. Doch ist diese Verfahrenswelse im allgemeinen am wirtschaftlichsten. Voraussetzung für die Durchführung des erfindungsgemäßen Verfahrens ist, daß in der Luftzerlegungsanlage gleichzeitig flüssiger und gasförmicor SauerstoffThe method according to the invention is of course not restricted to these exemplary embodiments. It is not necessary that the respiratory oxygen intended for liquefaction is under a pressure of 30 atmospheres, nor is it necessary that the liquefaction of the respiratory oxygen should be carried out Heat exchange takes place with evaporating liquid oxygen. But this procedural catfish is generally on most economical. The prerequisite for carrying out the process according to the invention is that liquid and gaseous oxygen are simultaneously present in the air separation plant
209809/05U209809 / 05U
produziert wird. Die für das Verfahren erforderliche Kälte kann auf die jeweilig wirtschaftlichste V/eise der Luftzerlegungsanlage entnommen werden.is produced. The cold required for the process can be applied to the most economical way of the air separation plant can be removed.
26.6.1968June 26, 1968
209809/05U bAd209809 / 05U bA d
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681751794 DE1751794A1 (en) | 1968-07-31 | 1968-07-31 | Method for obtaining respiratory oxygen |
| GB1231328D GB1231328A (en) | 1968-07-31 | 1969-07-17 | |
| FR696925271A FR2014037B1 (en) | 1968-07-31 | 1969-07-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681751794 DE1751794A1 (en) | 1968-07-31 | 1968-07-31 | Method for obtaining respiratory oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1751794A1 true DE1751794A1 (en) | 1972-02-24 |
Family
ID=5692472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19681751794 Pending DE1751794A1 (en) | 1968-07-31 | 1968-07-31 | Method for obtaining respiratory oxygen |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1751794A1 (en) |
| FR (1) | FR2014037B1 (en) |
| GB (1) | GB1231328A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4304673A1 (en) * | 1993-01-05 | 1994-09-15 | Rauscher Georg | Method for liquefying gases, characterised in that liquid gas is evaporated at high pressure, expanded, liquefied, supercooled and, in the heat exchanger, is used as the coolant |
| EP3914870A4 (en) * | 2019-01-25 | 2022-09-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and apparatus for supplying a backup gas under pressure |
-
1968
- 1968-07-31 DE DE19681751794 patent/DE1751794A1/en active Pending
-
1969
- 1969-07-17 GB GB1231328D patent/GB1231328A/en not_active Expired
- 1969-07-24 FR FR696925271A patent/FR2014037B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4304673A1 (en) * | 1993-01-05 | 1994-09-15 | Rauscher Georg | Method for liquefying gases, characterised in that liquid gas is evaporated at high pressure, expanded, liquefied, supercooled and, in the heat exchanger, is used as the coolant |
| EP3914870A4 (en) * | 2019-01-25 | 2022-09-07 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process and apparatus for supplying a backup gas under pressure |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2014037B1 (en) | 1973-07-13 |
| GB1231328A (en) | 1971-05-12 |
| FR2014037A1 (en) | 1970-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60013207T2 (en) | Carbon dioxide production with composite amine mixtures | |
| DE3840506C2 (en) | ||
| EP0121109B1 (en) | Process for the removal of co2 and/or h2s from gases | |
| DE1267236B (en) | Process for liquefying natural gas | |
| DE1122560B (en) | Process for the decomposition of a natural gas consisting of methane and higher-boiling hydrocarbons | |
| EP0107046A1 (en) | Process for the removal of CO2 and, when present, H2S from natural gases | |
| DE2646690A1 (en) | Oxygen and steam mixer for cellulose bleaching - has air fractionating plant supplying liquid oxygen to steam nozzle | |
| DE1082287B (en) | Process for the purification and liquefaction of gaseous hydrogen | |
| DE842213C (en) | Process for the separation of gas mixtures by rectification | |
| DE1033689B (en) | Process for evaporation of hydrocarbon-containing liquid oxygen and device for carrying out the process | |
| DD242755A5 (en) | METHOD FOR REGENERATING A LOADED DETERGENT | |
| DE1751794A1 (en) | Method for obtaining respiratory oxygen | |
| DE2411601A1 (en) | Volatile vapours, esp. benzine, sepn. from air - during e.g. tanker discharge, using liquefied gas for pptn | |
| DE102011010634A1 (en) | A method of separating trace components from a fraction containing at least nitrogen and helium | |
| DE2325422A1 (en) | METHOD AND DEVICE FOR DISASSEMBLING RAW ARGON | |
| DE4412496C2 (en) | Process for improved recovery of gasoline and / or solvent vapors in systems for exhaust air purification using pressure condensation and / or pressure absorption | |
| AT383884B (en) | Method for recovering energy of liquefaction expended in decomposing air after liquefaction | |
| DE60020500T2 (en) | Process for the separation of air by cryogenic distillation | |
| DD159259A3 (en) | PROCESS FOR THE PRODUCTION OF HIGH-PURITY AMMONIA | |
| DE10247511A1 (en) | Petrochemical barge tank residual vapors expelled with a scavenging gas for cryogenic recovery of vapors and return of scavenging nitrogen to tank | |
| DE1282623B (en) | Process for the separation of ammonia from a gaseous mixture of ammonia and carbonic acid | |
| DE1152431B (en) | Process for the liquefaction of chlorine gas | |
| DE2702226A1 (en) | METHOD OF LIQUIFYING A GAS WITH THE HELP OF LIQUID NATURAL GAS | |
| DE1145197B (en) | Process for the production of medium-pressure carbonic acid which can be filled in the liquid state with less than 0.2 volume percent foreign gas content from high-pressure carbonic acid with a higher foreign gas content | |
| DE2343081A1 (en) | Reducing vapourised petrol losses from storage tanks - by cooling air-vapour mixt. in tubular cooler and returning condensate to tank |