| abstract |
The present invention relates to a method for economically preparing paraffin compounds corresponding to gasoline fuel or a lubricating base oil by using volatile fatty acids (VFA) derived from biomass. The method according to the present invention comprises the following steps: preparing volatile C2-C4 fatty acids produced through fermentation of biomass; producing a mixture of C3-C7 ketones by ketonization of the volatile fatty acids; preparing C6-C60 ketones through aldol condensation of the produced ketones; and converting the C6-C60 ketones into C6-C60 paraffins through hydrodeoxygenation. Aldol condensation and hydrodeoxygenation can be carried out successively or be carried out simultaneously by one step, and can be carried out under low temperature conditions. If a catalyst is molded by physically mixing a material having one or more functions of condensation, hydrogenation, hydrodeoxygenation and the like or by using a binder material, or a catalyst system by formation of a dual layer is used, gasoline fuel or a high quality lubricating base oil can be directly prepared by an economical method. |