DE639662C - Process for the purification of crude acetylene obtained by arcing hydrocarbons - Google Patents
Process for the purification of crude acetylene obtained by arcing hydrocarbonsInfo
- Publication number
- DE639662C DE639662C DEI51996D DEI0051996D DE639662C DE 639662 C DE639662 C DE 639662C DE I51996 D DEI51996 D DE I51996D DE I0051996 D DEI0051996 D DE I0051996D DE 639662 C DE639662 C DE 639662C
- Authority
- DE
- Germany
- Prior art keywords
- hydrocarbons
- purification
- arcing
- crude acetylene
- acetylene
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/09—Purification; Separation; Use of additives by fractional condensation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
In dem Hauptpatent 615834 ist ein Verfahren zur Reinigung von Diaoetylen, Allylen, Allen oder Butadien oder mehrere dieser Stoffe enthaltendem Acetylen, wie es durch Behandlung von Kohlenwasserstoffen im elektrischen Lichtbogen entsteht, beschrieben. Das Verfahren wird in der Weise ausgeführt, daß das Gasgemisch einer Tiefkühlung bis nahe an den Siedepunkt des Aoetylens (— 840)The main patent 615834 describes a process for the purification of diaoethylene, allylene, allene or butadiene or acetylene containing several of these substances, as is produced by treating hydrocarbons in an electric arc. The process is carried out in such a way that the gas mixture from a deep-freeze is close to the boiling point of the aoethylene (- 84 0 )
to unterworfen wird unter Vermeidung solcher Temperaturen, bei denen sich -wesentliche Mengen Acetylen kondensieren, daß alsdann das nicht verflüssigte Gasgemisch abgezogen und zweckmäßig die etwa nicht kondensierten Anteile der Verunreinigungen durch Adsorption aus dem Gasgemisch entfernt werden. Es wurde gefunden, daß sich die Durchführung dieses Verfahrens in vielen Fällen mit besonderen Vorteilen gestaltet, wenn man unter erhöhtem Druck arbeitet. Hierdurch werden die zur Abtrennung der Verunreinigungen, wie Diacetylen, Allylen, Allen oder Butadien, in flüssigem Zustand erforderlichen Kondensationstemperaturen nach oben verschoben. Obwohl die Löslichkeit des Acetylens in flüssigen -Kohlenwasserstoffen außerordentlich groß ist, was besonders für Arbeitsverhältnisse unter erhöhtem Druck gilt, gelingt dennoch eine weitgehende oder vollständige Abscheidung der Verunreinigungen, ohne daß wesentliche Mengen Acetylen in dem flüssigen Kondensat mit entfernt werden. Man hat bei dieser Arbeitsweise im Falle der der. Weiterverarbeitung des gereinigten Acetylene unter Druck, z. B. bei der Umsetzung zu anderen Verbindungen, wie Acetaldehyd ο. dgl., den zusätzlichen Vorteil, daß das weiterzubehandelnde Gas bereits unter erhöhtem Druck steht, also nicht mehr oder wesentlich weniger komprimiert werden muß als nach der drucklosen Reinigung.to is subjected while avoiding temperatures at which -essential Quantities of acetylene condense so that the non-liquefied gas mixture is then drawn off and expediently the non-condensed portions of the impurities due to adsorption be removed from the gas mixture. It was found that performing this method designed in many cases with particular advantages when working under increased pressure. Through this are used to separate the impurities, such as diacetylene, allylene, or allene Butadiene, the necessary condensation temperatures in the liquid state are shifted upwards. Although the solubility of acetylene in liquid hydrocarbons is extraordinary is large, which is particularly true for working relationships under increased pressure, but a far-reaching or complete one succeeds Separation of the impurities without removing substantial amounts of acetylene in the liquid condensate. In this way of working in the case of the. Further processing of the purified acetylene under pressure, e.g. B. when converting to other compounds such as acetaldehyde ο. Like., The additional advantage that the further treatment Gas is already under increased pressure, so it does not have to be compressed more or significantly less than after pressureless cleaning.
2 cbm eines etwa 9 0/0 Acetylen und 0,4 0/0 Diaoetylen, Allylen, Allen und Butadien sowie 0,08 o/o Blausäure enthaltenden und im übrigen aus Wasserstoff, 20 bis 25 o/o Methan2 cbm of about 9 0/0 0.4 0/0 acetylene and Diaoetylen, allylene, Allen and butadiene and 0.08 o / o comprising hydrocyanic acid and the balance of hydrogen, 20 to 25 o / o methane
*) Von dem Patentsucher sind als die Erfinder angegeben worden:*) The patent seeker indicated the following as the inventors:
Dr. Hanns Bückert in -Ludwigshafen a. Rh. und Br. Robert Stadler in Heidelberg.Dr. Hanns Bückert in -Ludwigshafen a. Rh. And Br. Robert Stadler in Heidelberg.
und 4 o/o Stickstoff bestehenden Gases werden unter einem Druck von 25 at mit einer Strömungsgeschwindigkeit von etwa 10 cm pro Sekunde durch einen auf — 70° gehal·'. tenen Kühler geleitet. Die dabei abgeschiedene Menge der Verunreinigungen beträgt 16,5 ecm pro Kubikmeter Gas. Das den Kühler verlassende Gas ist nunmehr für die Weiterverarbeitung, z. B. Anreicherung des Acetylene durch Auswaschen oder für eine chemische Umwandlung, beispielsweise zu Acetaldehyd, sehr gut geeignet.and 4 o / o nitrogen gas are kept under a pressure of 25 atm with a flow rate of about 10 cm per second through a -70 °. through the cooler. The thereby deposited amount of the impurities is 1 6, 5 cc per cubic meter of gas. The gas leaving the cooler is now available for further processing, e.g. B. Enrichment of the acetylene by washing or for a chemical conversion, for example to acetaldehyde, very suitable.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI51996D DE639662C (en) | 1931-02-28 | 1931-02-28 | Process for the purification of crude acetylene obtained by arcing hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI51996D DE639662C (en) | 1931-02-28 | 1931-02-28 | Process for the purification of crude acetylene obtained by arcing hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE639662C true DE639662C (en) | 1936-12-10 |
Family
ID=7193219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEI51996D Expired DE639662C (en) | 1931-02-28 | 1931-02-28 | Process for the purification of crude acetylene obtained by arcing hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE639662C (en) |
-
1931
- 1931-02-28 DE DEI51996D patent/DE639662C/en not_active Expired
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