AT127401B - Process for the production of olefin-rich gases from lignite tar, lignite tar or mineral oils. - Google Patents
Process for the production of olefin-rich gases from lignite tar, lignite tar or mineral oils.Info
- Publication number
- AT127401B AT127401B AT127401DA AT127401B AT 127401 B AT127401 B AT 127401B AT 127401D A AT127401D A AT 127401DA AT 127401 B AT127401 B AT 127401B
- Authority
- AT
- Austria
- Prior art keywords
- lignite tar
- olefin
- production
- lignite
- tar
- Prior art date
Links
- 239000007789 gas Substances 0.000 title claims description 13
- 150000001336 alkenes Chemical class 0.000 title claims description 10
- 239000003077 lignite Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 6
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000002480 mineral oil Substances 0.000 title claims description 4
- 239000011269 tar Substances 0.000 title claims description 4
- 239000002641 tar oil Substances 0.000 title claims description 4
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims 2
- 239000003054 catalyst Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 230000001698 pyrogenic effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Herstellung olefinreicher Gase aus Braunkohlenteer, Braunkohlenteer- oder Mineral- ölen.
EMI1.1
<Desc/Clms Page number 2>
anderer gasförmiger Grenzkohlenwasserstoffe (Äthan und Homologe) entstehen, wohingegen der Wasserstoff zurücktritt, enthält das nach vorliegendem Verfahren hergestellte Krackgas wesentlich mehr Wasserstoff und weniger Methan und nur äusserst geringe Mengen an Homologen, das heisst, es geht weniger Kohlenstoff in zunächst wertlose Produkte über. Diese Veränderung des Krackgases ist aber besonders günstig für die Herstellung von Reinolefinen aus so erhaltenem Rohgas, weil die gasförmigen Grenzkohlenwasserstoffe bei der Reindarstellung der Olefine bekanntlich die grössten Schwierigkeiten bereiten.
Beispiel : Amerikanisches Gasöl wird mit Wasserdampf im Verhältnis 1 : 1 durch ein auf 725 C geheiztes Eisenrohr geleitet, welches unter einem absoluten Druck von z. B. 25 111m Quecksilbersäule gehalten wird. Die das Krackrohr verlassenden Dämpfe und Gase werden gekühlt, die kondensierbaren Anteile durch eine folgende Tiefkühlung abgesondert und die Gase durch eine Luftpumpe aus dem System in einen Behälter befördert. Das Gas enthält 61 Volumprozent Olefine, u. zw. ungefähr 550/0 thylen und 450/0 Äthylenhomologen. Die Ausbeute an Olefinen, bezogen auf das Ausgangsmaterial, liegt höher als beim Kracken unter gewöhnlichem Druck oder unter Vakuum oberhalb 100 rnm Quecksilbersäule.
Das Verhältnis zwischen Gasöl und Wasserdampf kann innerhalb der Grenzen 1 : 3 bis 3 : 1 verändert werden, wobei durch Vermehrung des Wasserdampfes eine weitere Erhöhung der Olefinkonzentration im Gase eintritt. Wendet man bei gleicher Temperatur und annähernd gleichem Vakuum das Verhältnis Öl : Wasserdampf = 1 : 3 an, so wird bei etwas verringerter Olefinkonzentration (etwas unter 600/0) die Ausbeute bis zu 40% gegenüber der unter normalem oder wenig vermindertem Druck erzielbaren Ausbeute erhöht.
An Stelle von Gasöl kann man ebensogut Braunkohlenteeröle oder Braunkohlenteer selbst oder aber Mineralölrückstände verwenden, wobei in jedem Falle die Olefinkonzentrationen und Ausbeuten gegenüber den bekannten Arbeitsweisen erhöht werden.
<Desc / Clms Page number 1>
Process for the production of olefin-rich gases from lignite tar, lignite tar or mineral oils.
EMI1.1
<Desc / Clms Page number 2>
Other gaseous boundary hydrocarbons (ethane and homologues) are formed, whereas the hydrogen recedes, the cracked gas produced by the present process contains significantly more hydrogen and less methane and only extremely small amounts of homologues, i.e. less carbon is converted into initially worthless products. However, this change in the cracked gas is particularly favorable for the production of pure olefins from the raw gas obtained in this way, because the gaseous boundary hydrocarbons are known to cause the greatest difficulties in the pure preparation of the olefins.
Example: American gas oil is conducted with steam in a ratio of 1: 1 through an iron pipe heated to 725 C, which is under an absolute pressure of z. B. 25 111m of mercury is held. The vapors and gases leaving the cracking tube are cooled, the condensable fractions are separated off by a subsequent deep freezing process and the gases are conveyed out of the system into a container by an air pump. The gas contains 61 volume percent olefins, u. between about 550/0 ethylene and 450/0 ethylene homologues. The yield of olefins, based on the starting material, is higher than when cracking under normal pressure or under vacuum above 100 µm of mercury.
The ratio between gas oil and water vapor can be changed within the limits 1: 3 to 3: 1, with the increase in the water vapor causing a further increase in the olefin concentration in the gas. If the oil: steam ratio = 1: 3 is used at the same temperature and approximately the same vacuum, the yield is increased by up to 40% compared to the yield achievable under normal or slightly reduced pressure with a slightly reduced olefin concentration (slightly below 600/0) .
Instead of gas oil, it is just as possible to use lignite tar oils or lignite tar itself or else mineral oil residues, the olefin concentrations and yields being increased in each case compared to the known procedures.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT127401T | 1930-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT127401B true AT127401B (en) | 1932-03-25 |
Family
ID=3635193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT127401D AT127401B (en) | 1930-05-07 | 1930-05-07 | Process for the production of olefin-rich gases from lignite tar, lignite tar or mineral oils. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT127401B (en) |
-
1930
- 1930-05-07 AT AT127401D patent/AT127401B/en active
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