DE810399C - Process for the decomposition of a mixture of methane and carbon dioxide - Google Patents

Process for the decomposition of a mixture of methane and carbon dioxide

Info

Publication number
DE810399C
DE810399C DEP23279A DEP0023279A DE810399C DE 810399 C DE810399 C DE 810399C DE P23279 A DEP23279 A DE P23279A DE P0023279 A DEP0023279 A DE P0023279A DE 810399 C DE810399 C DE 810399C
Authority
DE
Germany
Prior art keywords
carbon dioxide
mixture
methane
decomposition
cold
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
DEP23279A
Other languages
German (de)
Inventor
Helmut Haehndel
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.)
Maschinenfabrik Esslingen AG
Original Assignee
Maschinenfabrik Esslingen AG
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 Maschinenfabrik Esslingen AG filed Critical Maschinenfabrik Esslingen AG
Priority to DEP23279A priority Critical patent/DE810399C/en
Application granted granted Critical
Publication of DE810399C publication Critical patent/DE810399C/en
Expired legal-status Critical Current

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
    • F25J3/08—Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon And Carbon Compounds (AREA)

Description

Die Zerlegung von Gasgemischen mittels Kälte ist an sich bekannt. Bisher benötigte man aber besondere kälteerzeugende Maschinen zur Tiefkühlung. Im vorliegenden Fall, nämlich .der Zerlegung eines aus Methan und Kohlendioxyd bestehenden Klär gasgemisches, wo das Gas ohnehin als Motortreibstoff hoch verdichtet werden muß, ergibt sich die Möglichkeit, ohne eine besondere Kältemaschine auszukommen.The decomposition of gas mixtures by means of cold is known per se. Up to now, however, special cold-generating machines were required for deep-freezing. in the present case, namely. the decomposition of a methane and carbon dioxide Clarifying gas mixture, where the gas is already highly compressed as a motor fuel must, there is the possibility of doing without a special refrigeration machine.

Das im Kompressor auf Zoo bis 35o atü verdichtete Gasgemisch wird zunächst in einem Wasserkühler auf dicht über Wassertemperatur abgekühlt und dann in einen Flüssigkeitsabscheider und Trockner a geleitet. Von dort gelangt es in den Wärmeaustauscher b, wo es tief gekühlt wird. Hierdurch wird der größte Teil des Kohlendioxyds flüssig und über die Leitung c in dem nachgeschalteten Abscheider b abgeschieden. Über einen schwimmergesteuerten Schieber im Abscheider d wird das Kohlendioxyd unter starker Entwicklung von Kälte entspannt und über die Leitung e dem Wärmeaustauscher b zugeführt, wo es zur Abkühlung des Gasgemisches dient. Das Kohlendioxyd geht dann über die Leitung f und das Ventil g in die freie Atmosphäre oder zu irgendwelcher Verwertung. Das im Abscheider d vom Kohlendioxyd fast befreite Reingas gelangt über die Leitung h, ebenfalls das ankommende Gemisch abkühlend, in die Leitung i zu den Speichergefäßen.The gas mixture compressed in the compressor at Zoo to 35o atü is first cooled in a water cooler to just above water temperature and then passed into a liquid separator and dryer a. From there it goes in the heat exchanger b, where it is deeply cooled. This will do most of the work of the carbon dioxide liquid and via line c in the downstream separator b deposited. This is done via a float-controlled slide in separator d Carbon dioxide with strong development of cold relaxed and over the line e fed to the heat exchanger b, where it is used to cool the gas mixture. The carbon dioxide then goes through line f and valve g into the free atmosphere or for any recovery. That is almost freed from carbon dioxide in separator d Clean gas arrives via line h, also cooling the incoming mixture, into line i to the storage vessels.

Beim Anfahren der Apparatur muß die zur Verflüssigung des Kohlendioxyds erforderliche Kälte auf besondere Weise erzeugt werden. Die Ventile g und k werden zunächst geschlossen und die Ventile l und m geöffnet. Die Leitung, in der das Ventil l liegt, führt zur Saugleitung des Kompressors. Durch die Entspannung des hochverdichteten Gasgemisches auf Atmosphärendruck tritt ein stärkerer Temperaturabfall ein, der im Wärmeaustauscher b das unter Druck stehende Gasgemisch fortschreitend abkühlt, bis die Abscheidung von Kohlendioxyd eintritt. Ist dies der Fall, so werden nacheinander die Ventile l und m geschlossen und die Ventile g und k geöffnet.When the apparatus is started up, the cold required to liquefy the carbon dioxide must be generated in a special way. The valves g and k are initially closed and the valves l and m are opened. The line in which valve 1 is located leads to the suction line of the compressor. The expansion of the highly compressed gas mixture to atmospheric pressure causes a greater drop in temperature, which gradually cools the pressurized gas mixture in the heat exchanger b until the separation of carbon dioxide occurs. If this is the case, valves l and m are closed one after the other and valves g and k are opened.

Claims (1)

PATENTANSPRUCH: Verfahren zur Zerlegung eines Gemisches aus Methan und Kohlendioxyd, dadurch gekennzeichnet, daß das auf mindestens Zoo atü verdichtete Gemisch zunächst mit Wasser so weit wie möglich herabgekühlt und getrocknet wird, dann in einem Wärmeaustauscher weiter so tief abgekühlt wird, daß das Kohlendioxyd in einem nachgeschalteten Abscheider sich flüssig abscheidet und über einem ständig geöffneten Ablaß über den Tripelpunkt entspannt wird, wobei es wieder vergast und seine Kälte im Wärmeaustauscher an das abzukühlende Rohgas abgibt und das vom Kohlendioxyd nahezu befreite Restgas ebenfalls seine Kälte an das Rohgas abgibt. Claim: method for decomposing a mixture of methane and carbon dioxide, characterized in that the mixture compressed to at least Zoo atü is first cooled down with water as much as possible and dried, then further cooled in a heat exchanger so deep that the carbon dioxide in one downstream separator separates out in liquid form and is expanded via a constantly open drain above the triple point, where it is gasified again and gives off its cold in the heat exchanger to the raw gas to be cooled and the residual gas, which has almost been freed from carbon dioxide, also gives off its cold to the raw gas.
DEP23279A 1948-12-02 1948-12-02 Process for the decomposition of a mixture of methane and carbon dioxide Expired DE810399C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP23279A DE810399C (en) 1948-12-02 1948-12-02 Process for the decomposition of a mixture of methane and carbon dioxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP23279A DE810399C (en) 1948-12-02 1948-12-02 Process for the decomposition of a mixture of methane and carbon dioxide

Publications (1)

Publication Number Publication Date
DE810399C true DE810399C (en) 1951-08-09

Family

ID=7369135

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP23279A Expired DE810399C (en) 1948-12-02 1948-12-02 Process for the decomposition of a mixture of methane and carbon dioxide

Country Status (1)

Country Link
DE (1) DE810399C (en)

Similar Documents

Publication Publication Date Title
DE1226616B (en) Process and device for the production of gaseous pressurized oxygen with simultaneous production of liquid decomposition products by low-temperature air separation
US1539450A (en) Method of separating the constituents of gaseous mixtures
DE810399C (en) Process for the decomposition of a mixture of methane and carbon dioxide
GB954917A (en) Multi-stage process and apparatus for distilling sea water
GB336798A (en) Process and apparatus for the liquefaction of air and other gases
DE2713028A1 (en) METHOD AND INSTALLATION FOR SEPARATING WATER FROM DAMP GAS
DEP0023279DA (en) Process for the decomposition of a mixture of methane and carbon dioxide
DE453513C (en) Pre-cooling process for liquefying and separating poorly liquefiable gases and gas mixtures
DE340864C (en) Process for extracting small amounts of valuable components from gas mixtures
DE861852C (en) Process for the liquefaction of impure hydrogen
DE102014200785A1 (en) Method and device for separating a condensable foreign substance from a gas mixture
DE955867C (en) Process for separating a compressed, hydrogen-rich gas mixture
DE345233C (en) Method and device for removing moisture from gases or vapors and for heating gases and vapors
DE646412C (en) Process for the operation of plants for the separation of gas mixtures
GB298910A (en) Process of and apparatus for obtaining solid carbon dioxide
DE725157C (en) Process for the production of a low-boiling gas, in particular for the production of hydrogen from coke oven gas
DE527876C (en) Process for deep-freezing or decomposition of gas mixtures by evaporation of low-boiling coolants in a non-condensable auxiliary gas
DE513528C (en) Separation of vapors in solid form from gas mixtures, in particular extraction of solid carbonic acid
DE675347C (en) Process for the decomposition of gas mixtures with a low boiling point
US1925041A (en) Method of producing carbon dioxide in solid form
US962836A (en) Process of cooling and liquefying gases.
DE480815C (en) Process for removing frost from cold exchangers, in particular for gas separation plants
US2941374A (en) Method and apparatus for preparing natural gas for liquefaction
DE312639C (en)
AT120550B (en) Process for liquefying and separating gas mixtures, in particular air and its components.