Patent ID: 8524970

Claim:
A process for producing synthetic fuels from an educt mixture containing steam and oxygenates comprising: a first process stage, in which the educt mixture is reacted on a catalyst to obtain a hydrocarbon product containing olefins with 2 to 8 carbon atoms, a second process stage, in which the hydrocarbon product obtained is oligomerized to higher olefins with 10 to 20 carbon atoms, and a third process stage, in which a product stream from the second process stage is separated into three streams: a distillate stream, which is formed into diesel; a hydrocarbon stream rich in paraffins, which is recycled to the first process stage; and a hydrocarbon stream rich in olefins, which is recycled to the second process stage, wherein the hydrocarbon product obtained in the first process stage is separated into a liquid and a gaseous phase before introduction into the second process stage, the gaseous phase of the hydrocarbon product is supplied to the second process stage, the liquid phase of the hydrocarbon product is separated into a mixture rich in C 6− hydrocarbons and a mixture containing C 7+ hydrocarbons and aromatics, and the mixture rich in C 6− hydrocarbons is supplied to the second process stage.