Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Christoph Unger

Axel Kraft

Volker Heil

Andreas Menne

Kai Keldenich

Wolfgang Urban

Karl Meller

Joachim Danzig

Ulrich Seifert

Anna Fastabend

Silvana Rossow

Heiko Lohmann

Erich Jelen

The invention relates to a method for extracting hydrocarbon mixtures that have an increased proportion of hydrocarbons of a medium chain length (8 to 16 carbon atoms), or the corresponding pure compounds. Firstly, a starting material is provided that includes at least 50 wt. % unsaturated hydrocarbon compounds having oxygen. The compounds include olefin fragments of the formula &#x2014;CCH&#x2014;CH&#x2550;CH&#x2014;CH2with at least 14 carbon atoms, carbon atom (C) being saturated with substituted or unsubstituted heteroatoms and/or hydrogen. In a conversion reactor, this starting material is brought into contact with a porous catalyst based on carbon, in the absence of oxygen, and at a temperature of between 200 and 800&#xb0; C.; and a product mixture that contains hydrocarbons is produced containing an increased proportion of hydrocarbons with medium chain lengths. Finally, the product mixture including hydrocarbons is collected and fed to a separating device in which a product separation is carried out.

Method for extracting hydrocarbons with medium chain lengths, and the use of the same

A process for obtaining gaseous hydrocarbons from a starting material which contains oxygen-containing hydrocarbons. The process includes providing the starting material and contacting the starting material with a porous catalyst at a temperature of 300-850&#xb0; C. in the absence of oxygen in a converting reactor so as to form a hydrocarbon-containing product gas mixture in which a proportion by weight of gaseous hydrocarbons is greater than a proportion by weight of liquid hydrocarbons in the gas mixture. Additionally, the process includes collecting a hydrocarbon-containing product gas stream of the hydrocarbon-containing product gas mixture and introducing the product gas stream into a separation apparatus in which product fractionation is carried out.

Method for extracting gaseous hydrocarbons from biogenic raw materials

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Wesel, Germany

Christoph Unger