MULTI-STAGE FERMENTATION PROCESS STARTING FROM SYNTHESIS GAS

摘要

The invention provides a process for the preparation of hydrocarbons substituted with at least one group containing at least one oxygen atom, comprising the process steps A) reaction of a carbon source comprising at least one selected from CO2 and CO to give acetate and/or ethanol with a first microorganism, B) separating off of the acetate from the first microorganism, C) reaction of the acetate to give a hydrocarbon substituted with at least one group containing at least one oxygen atom with a second microorganism and optionally D) purification of the hydrocarbon substituted with at least one group containing at least one oxygen atom.