DE403654C - Process for air separation with simultaneous extraction of argon - Google Patents

Process for air separation with simultaneous extraction of argon

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Publication number
DE403654C
DE403654C DEA40693D DEA0040693D DE403654C DE 403654 C DE403654 C DE 403654C DE A40693 D DEA40693 D DE A40693D DE A0040693 D DEA0040693 D DE A0040693D DE 403654 C DE403654 C DE 403654C
Authority
DE
Germany
Prior art keywords
column
argon
air
oxygen
auxiliary
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
Application number
DEA40693D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Application granted granted Critical
Publication of DE403654C publication Critical patent/DE403654C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B23/00—Noble gases; Compounds thereof
    • 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
    • F25J3/04369—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 of argon or argon enriched stream
    • 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
    • F25J3/04624—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 integrated mass and heat exchange, so-called non-adiabatic rectification, e.g. dephlegmator, reflux exchanger
    • 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
    • F25J3/04709—Producing crude argon in a crude argon column as an auxiliary column system in at least a dual pressure main column system
    • F25J3/04715—The auxiliary column system simultaneously produces 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
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Description

Verfahren zur Luftzerlegung mit gleichzeitiger Argongewinnung. Die vorliegende Erfindung betrifft ein Verfahren zur Luftzerlegung mit gleichzeitiger Gewinnung von Argon. Bekanntlich wird hierbei die sauerstoffreiche Flüssigkeit, die in der Hauptrektifikationssäule erhalten wird und die das Argon enthält, nachher in einer Hilfskolonne weiter rektifiziert, um einerseits in dem oberen Teil derselben ein argonreiches Gas abzuscheiden, anderseits in dem unteren Teil ein sauerstoffreiches Gas zu liefern, welches eines der Hauptprodukte des Verfahrens darstellt. In den Apparaten hierzu (z. B. bei dem in der Abb. 3 des Patentes 329542 dargestellten) dient die zu zerlegende Luft bei ihrer Verflüssigung einerseits zur Verdampfung der Flüssigkeit, welche das sehr sauerstoffreiche, vorerwähnte Gas der Hilfskolonne liefert, anderseits zur Verdampfung der weniger sauerstoffreichen Flüssigkeit, die die in der Hauptsäule emporsteigenden Dämpfe erzeugt. Die bisher gewöhnlich für die Zirkulation dieser Luft verwandte Anordnung teilt die Hochdruckluft in zwei Teile; von denen jeder bei seiner Verflüssigung je einen Teil der Flüssigkeit liefert, die in der Hauptsäule verarbeitet wird. Diese Komplizierung soll die gegenwärtige Erfindung vermeiden. Sie erlaubt, wenn die Luftverflüssigung in einem Röhrenkessel erfolgt, durch eine einfache Anordnung mit einer einzigen Luftzuführung auszukommen.Process for air separation with simultaneous extraction of argon. the The present invention relates to a method for air separation with simultaneous Extraction of argon. It is well known that the oxygen-rich liquid, which is obtained in the main rectification column and which contains the argon afterwards further rectified in an auxiliary column to the one hand in the upper part of the same to deposit an argon-rich gas, on the other hand, in the lower part, an oxygen-rich one To supply gas, which is one of the main products of the process. In the Apparatus for this (e.g. the one shown in Fig. 3 of patent 329542) the air to be broken down serves on the one hand for evaporation when it is liquefied the liquid containing the very oxygen-rich gas of the auxiliary column mentioned above supplies, on the other hand, to the evaporation of the less oxygen-rich liquid that generates the vapors rising in the main column. Previously common for The circulation of this air related arrangement divides the high pressure air into two Parts; each of which supplies part of the liquid when it liquefies, which is processed in the main column. This complication is supposed to be the present Avoid invention. It is allowed when the air is liquefied in a tubular boiler takes place by a simple arrangement with a single air supply.

Zu diesem Zweck verwendet man statt der bisherigen zwei Verdampfungsgefäße ein einziges mit zwei getrennten Kammern, von denen die eine die weniger sauerstoffreiche Flüssigkeit aufnimmt, deren Dämpfe in der Hauptsäule aufsteigen, während die andere zur Verdampfung des hochprozentigen, vom Argon befreiten Sauerstoffs aus der Hilfssäule, dient; diese beiden Kammern werden von einem gemeinsamen Röhrenbündel durchquert, in welchem - vorzugsweise unter Rückfluß der flüssigen Anteile - die Verflüssigung der komprimierten Luft stattfindet. Man läßt die Druckluft zunächst in den Teil des Röhrenbündels eintreten, der vom Sauerstoff der Hilfssäule umspült wird; dieser ist wärmer als der aus der Hauptsäule kommende Sauerstoff und wird daher zweckmäßig in der unteren Kammer des Verdampfungsgefäßes verdampft. Die Überleitung des flüssigen Sauerstoffs aus der Hilfskolonne in den Verdampfer kann sowohl durch die eigene Schwere der Flüssigkeit als auch durch Druck oder beides zugleich erfolgen.For this purpose, two evaporation vessels are used instead of the previous ones a single one with two separate chambers, one of which is the less oxygen-rich Receives liquid, the vapors of which rise in the main column, while the other to evaporate the high percentage oxygen from the auxiliary column, which has been freed from argon, serves; these two chambers are traversed by a common bundle of tubes, in which - preferably under reflux of the liquid components - the liquefaction the compressed air takes place. The compressed air is first let into the part enter the tube bundle, which is washed by the oxygen from the auxiliary column; this is warmer than the oxygen coming from the main column and is therefore useful evaporated in the lower chamber of the evaporation vessel. The transition of the liquid Oxygen from the auxiliary column in the evaporator can both by its own Heaviness of the liquid as well as by pressure or both at the same time.

Die Abbildung stellt die Vorrichtung zur Ausführung der gegenwärtigen Erfindung dar. In dieser Abbildung bezeichnet A die Hauptsäule, B die unmittelbar darunter und in der Verlängerung der ersteren angeordnete Hilfssäule. Im unteren Teil der Säule A liegt der Verdampfer mit den zwei übereinandergelegenen Kammern C und D, die durch die Scheidewand E getrennt werden; diese beiden Kammern werden von einem Röhrenbündel F durchquert, in das bei G die gesamte Menge der zu behandelnden Luft eintritt, die sich hier unter Rückfluß der verflüssigten Teile verflüssigt. Die obere Kammer C enthält den argonhaltigen Sauerstoff der Hauptsäule; diese Flüssigkeit wird nach teilweiser Verdampfung durch das Rohr H in die Hilfssäule B geleitet. Die Arbeitsweise der Hilfssäule B ist die übliche. Die sehr sauerstoffreiche Flüssigkeit J, die sich in dem beispielsweise durch komprimiertes argonreiches Gemisch beheizten Verdampfer am unteren Teil der Kolonne sammelt, wird durch das Rohr I( in die Kammer D des Verdampfers der Hauptsäule gedrückt, um dort vollständig ver= dampft zu werden. Der aus dieser Flüssigkeit entstehende, sehr reine Sauerstoff veriäßt die Säule bei L. Um den flüssigen *Sauerstoff durch I( von J nach D hinaufdrücken zu können, muß man natürlich in dem ganzen Apparat für angemessene Drücke sorgen.The figure shows the apparatus for carrying out the present invention. In this figure, A indicates the main column, B the auxiliary column located immediately below and in the extension of the former. In the lower part of column A is the evaporator with the two superimposed chambers C and D, which are separated by the partition E; These two chambers are traversed by a tube bundle F, into which enters at G the entire amount of the air to be treated, which liquefies here under reflux of the liquefied parts. The upper chamber C contains the argon-containing oxygen of the main column; this liquid is passed through tube H into auxiliary column B after partial evaporation. The operation of the auxiliary column B is the usual one. The very oxygen-rich liquid J, which collects in the evaporator, which is heated for example by a compressed argon-rich mixture at the lower part of the column, is pressed through tube I (into chamber D of the evaporator of the main column, in order to be completely evaporated there Very pure oxygen arising from this liquid leaves the column at L. In order to be able to push the liquid oxygen up through I (from J to D, one must of course ensure adequate pressures in the whole apparatus.

Claims (2)

PATENT-ANSPRÜcHE: i. Verfahren zur Luftzerlegung mit gleichzeitiger Argongewinnung in einer Hilfsrektifikationssäule, dadurch gekennzeichnet, daß die Verflüssigung der Luft in einem einzigen Röhrenbündel erfolgt, in welches die Luft zur Verflüssigung zweckmäßig unter Rückströmen der verflüssigten Anteile von unten eintritt und welches von einem einzigen in zwei getrennte Kammern unterteilten Verdampfergefäße umgeben ist, von denen die erstere die in die Hauptsäule aufsteigenden Dämpfe liefert und die zweite den aug der Hilfsquelle erhaltenen reinen Sauerstoff verdampft. PATENT CLAIMS: i. Process for air separation with simultaneous Argon recovery in an auxiliary rectification column, characterized in that the Liquefaction of the air takes place in a single bundle of tubes, into which the air for liquefaction, expediently with the liquefied components flowing back from below enters and which of a single evaporator vessel divided into two separate chambers is surrounded, of which the former supplies the vapors rising into the main column and the second vaporizes pure oxygen obtained from the auxiliary source. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die sehr sauerstoffreiche Flüssigkeit der Hilfssäule in die untere der beiden Kammern des Verdampfergefäßes der Hauptsäule geleitet wird. 2. The method according to claim i, characterized in that the very oxygen-rich liquid of the auxiliary column is passed into the lower of the two chambers of the evaporator vessel of the main column.
DEA40693D 1923-07-23 1923-09-20 Process for air separation with simultaneous extraction of argon Expired DE403654C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18911/23A GB212185A (en) 1923-07-23 1923-07-23 Improvements in or relating to the separation of the constituents of air and the production of argon

Publications (1)

Publication Number Publication Date
DE403654C true DE403654C (en) 1924-10-06

Family

ID=10120531

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA40693D Expired DE403654C (en) 1923-07-23 1923-09-20 Process for air separation with simultaneous extraction of argon

Country Status (3)

Country Link
DE (1) DE403654C (en)
FR (1) FR580483A (en)
GB (1) GB212185A (en)

Also Published As

Publication number Publication date
GB212185A (en) 1924-03-06
FR580483A (en) 1924-11-07

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