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AssigneeLurgi GmbH
InventorsMartin Rothaemel, Uwe Fincke, Holger Dropsch, Henning Buchold
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In a process for producing synthetic fuels from an educt mixture containing hydrogen and oxygenates, such as methanol and/or dimethyl ether, the educt mixture is reacted on a catalyst in a first process stage to obtain a hydrocarbon product containing olefins with preferably 2 to 8 carbon atoms. In a second process stage the hydrocarbon product is oligomerized to long-chain olefins, from which gasoline and Diesel products are obtained. The hydrocarbon product obtained in the first process stage is separated into a liquid phase and a gaseous phase. The gaseous phase is supplied to the second process stage. The liquid phase is separated into a mixture rich in C6− hydrocarbons and a mixture containing C7+ hydrocarbons and aromatics. The mixture rich in C6− hydrocarbons is supplied to the second process stage. The mixture containing C7+ hydrocarbons −+ and aromatics can be admixed to the gasoline product for quality improvement.
A process for producing synthetic fuels from an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, in which
A plant for producing synthetic fuels from an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, in particular suitable for performing a process according to any of the preceding claims, comprising at least one catalytic olefin reactor (1) for converting the educt mixture to a hydrocarbon product containing olefins with preferably 2 to 8 carbon atoms, and comprising at least one oligomerization reactor (8) downstream of the olefin reactor (1) for converting the hydrocarbon product obtained to long-chain hydrocarbons, characterized by a first separating means (5) for separating the hydrocarbon product obtained in the olefin reactor (1) into a gaseous phase and a liquid phase, and by a second separating means (9) for separating the liquid phase of the hydrocarbon product into a mixture rich in C6− hydrocarbons and a mixture containing C7+ hydrocarbons and aromatics.
Dependencies are inferred from the claim text.