Method for extracting gaseous hydrocarbons from biogenic raw...

C - Chemistry – Metallurgy – 10 – G

Patent

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C10G 1/02 (2006.01) C07C 1/20 (2006.01) C10B 57/00 (2006.01) C10J 3/00 (2006.01) C11B 3/14 (2006.01)

Patent

CA 2738611

The invention relates to a method for extracting gaseous hydrocarbons, in particular liquid gas and/or a gas mixture resembling natural gas or one or more components contained in liquid gas or in the gas mixture resembling natural gas. The starting material used contains oxygen-containing hydrocarbons. The method comprises the following steps: providing the starting material - contacting the starting material with a porous catalyst in the absence of oxygen at a temperature of 300-850°C in a converting reactor, resulting in a hydrocarbon-containing product gas mixture, in which the proportion by weight of the gaseous hydrocarbons is greater than that of the liquid hydrocarbons, - collecting the hydrocarbon-containing product gas stream and supplying the product gas stream to a separating device, where product separation is performed.

L'invention concerne un procédé de production d'hydrocarbures gazeux, en particulier de gaz liquéfié et/ou d'un mélange gazeux semblable au gaz naturel ou d'un ou de plusieurs composants contenus dans le gaz liquéfié ou dans le mélange gazeux semblable au gaz naturel. La matière de départ utilisée contient des hydrocarbures oxygénés. Le procédé selon l'invention comprend les étapes suivantes : préparation de la matière de départ; mise en contact de la matière de départ avec un catalyseur poreux en l'absence d'oxygène à une température comprise entre 300 et 850°C dans un réacteur de conversion de façon à obtenir un mélange gazeux contenant des hydrocarbures, dans lequel le pourcentage en poids des hydrocarbures gazeux est supérieur à celui des hydrocarbures liquides; captage du flux de gaz produit contenant des hydrocarbures et acheminement de celui-ci dans un dispositif de séparation dans lequel a lieu une décomposition du produit.

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