AT111572B - Process for processing the products that arise during the liquefaction of the coal by hydrogenation. - Google Patents
Process for processing the products that arise during the liquefaction of the coal by hydrogenation.Info
- Publication number
- AT111572B AT111572B AT111572DA AT111572B AT 111572 B AT111572 B AT 111572B AT 111572D A AT111572D A AT 111572DA AT 111572 B AT111572 B AT 111572B
- Authority
- AT
- Austria
- Prior art keywords
- coal
- liquefaction
- hydrogenation
- products
- processing
- Prior art date
Links
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
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Verfahren zur Aufarbeitung der Produkte, die bei der Ternüssigung der Kohle durch
Hydrierung entstehen.
EMI1.1
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wirdabgezogen. Es scheidensiehnachzirka3 bis5 Stunden weiter 40 kg eines von unlöslichen Bestandteilen freien Weichasphalts ab. Es bleiben 40 kg dünnflüssiges, rotbraunes, asphaltarmes Öl. Aus sämtlichen drei Fällungsfraktionen wird das Fällungsmittel durch Abblasen mit Wasserdampf wiedergewonnen.
Dasselbe Verfahren lässt sich auch auf andere asphalthaltige bituminöse Materialien anwenden.
Es war bisher nicht bekannt, dass schon relativ kleine Mengen aliphatischer Öle, wie etwa 20%, zur Abscheidung von Asphalt und andern Verunreinigungen dienen können.
Zwecks leichter Wiedergewinnung des zur Fällung verwendeten Öles kann man dessen Siedegrenzen so wählen, dass es bei der Aufarbeitung der Lösungen durch Destillation leicht wiedergewonnen werden kann.
PATENT-ANSPRÜCHE :
1. Verfahren zur Aufarbeitung der Produkte, die bei der Verflüssigung der Kohle durch Hydrierung entstehen, durch Fällung und Abtrennung der Asphaltstoffe, dadurch gekennzeichnet, dass das von Wasser und niedrigsiedenden Bestandteilen befreite, feste Bestandteile enthaltende Kohleverflüssigungsprodukt mit relativ kleinen Mengen (etwa 20%) aliphatischer Öle, z. B. Gasöl, bei erhöhter Temperatur versetzt wird.
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Process for the processing of the products that result from the liquefaction of the coal
Hydrogenation arise.
EMI1.1
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is withdrawn. After about 3 to 5 hours, they separate a further 40 kg of soft asphalt free of insoluble components. This leaves 40 kg of thin, red-brown, asphalt-poor oil. The precipitant is recovered from all three precipitation fractions by blowing off with steam.
The same process can be applied to other bituminous materials containing asphalt.
It was not previously known that even relatively small amounts of aliphatic oils, such as about 20%, can serve to separate asphalt and other contaminants.
For the purpose of easy recovery of the oil used for the precipitation, its boiling point can be chosen so that it can easily be recovered when the solutions are worked up by distillation.
PATENT CLAIMS:
1. A process for processing the products that arise during the liquefaction of coal through hydrogenation, by precipitation and separation of the asphalt materials, characterized in that the coal liquefaction product containing solid components, freed from water and low-boiling components, is relatively small (about 20%) aliphatic oils, e.g. B. gas oil, is added at elevated temperature.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE111572X | 1925-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT111572B true AT111572B (en) | 1928-12-10 |
Family
ID=5652584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT111572D AT111572B (en) | 1925-12-11 | 1926-11-11 | Process for processing the products that arise during the liquefaction of the coal by hydrogenation. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT111572B (en) |
-
1926
- 1926-11-11 AT AT111572D patent/AT111572B/en active
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