Patent ID: 8679805

Claim:
A method of preparing paraffins for transportation fuel or lubricating base oil using biomass, the method comprising the steps of: A) preparing C2-C7 volatile fatty acids or their salts by fermentation of biomass; B) producing a mixture of C3-C13 ketones from the volatile fatty acids or their salts of step A); and C) converting the ketone mixture of step B) into paraffins in the presence of a hydrogenation catalyst wherein step C) comprises the steps of i) subjecting the ketone mixture to aldol condensation to prepare hydroxyketones having an increased carbon chain length; ii) dehydrating the hydroxyketones to form enones; iii) saturating the enones with hydrogen to form ketones; and iv) converting the formed ketones into paraffins by hydrodeoxygenation, and wherein step C) is carried out in a single reactor.