Method and apparatus for producing synthetic fuels

摘要

For producing synthetic fuels, an educt mixture containing steam and oxygenates, such as methanol and/or dimethyl ether, is converted to olefins on a catalyst in a first process stage, and this olefin mixture then is divided in a separating means into a stream rich in C1-C4 hydrocarbons and a stream rich in C5+ hydrocarbons. The stream rich in C5+ hydrocarbons is divided into a stream rich in C5 and C6 hydrocarbons and a stream rich in C7+ hydrocarbons, wherein the stream rich in C5 and C6 hydrocarbons is at least partly subjected to an etherification with methanol. The ethers thus obtained are admixed to the gasoline product stream.

主权项

1. A process for producing synthetic fuels, comprising
converting an educt mixture containing steam and oxygenates to an olefin mixture on a catalyst in a first process stage, dividing the olefin mixture in a separating means into a stream rich in C1-C4 hydrocarbons and a stream rich in C5+ hydrocarbons, dividing the stream rich in C5+ hydrocarbons into a stream rich in C5 and C6 hydrocarbons and a stream rich in C7+ hydrocarbons, subjecting the stream rich in C5 and C6 hydrocarbons at least partially to an etherification with methanol to form ethers admixing the ethers thus obtained with a gasoline product stream rich in C7+ hydrocarbons, and wherein a partial stream of the stream rich in C5 and C6 hydrocarbons is guided past the etherification and admixed directly to the gasoline product stream.