Preparation methods for liquid hydrocarbons by Fischer-Tropsch synthesis through slurry reaction

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(57) Abstract : The present invention relates to a method for preparing liquid hydrocarbons via a slurry phase Fischer-Tropsch (FT) synthesis. In particular, the present invention relates to a method for preparing liquid hydrocarbons from syngas via slurry phase F-T synthesis using a catalyst, which can prevent the decrease in catalyst activity and filter clogging due to catalyst aggregation, simultaneously with improving selectivity for C 5 or higher hydrocarbons by using C 7 -C 12 alcohols having a high boiling point as an additive for a slurry reaction solvent or recycling the same alcohol separated from by-products that are generated during the F-T reaction. Since t he method of the present invention is more carbon-effective and shows improved long-term stability of a re- it in