Patent ID: 8546627

Claim:
A process for preparing a renewable jet fuel comprising: (a) treating biomass to form a feedstock; (b) fermenting the feedstock with one or more species of microorganism, thereby forming one or more C 2 -C 6 alcohols; (c) dehydrating at least a portion of the one or more C 2 -C 6 alcohols obtained in step (b), thereby forming a product comprising one or more C 2 -C 6 olefins; (d) isolating the one or more C 2 -C 6 olefins; (e) oligomerizing at least a portion of the one or more C 2 -C 6 olefins isolated in step (d), thereby forming a product comprising one or more C 6 -C 24 unsaturated oligomers; (f) optionally hydrogenating at least a portion of the product of step (e) in the presence of hydrogen, thereby forming a product comprising one or more C 6 -C 24 saturated alkanes; and (g) combining the product of step (f) with one or more C 10 -C 14 aromatic hydrocarbons, thereby forming a jet fuel; whereby the product of step (g) meets the requirements of ASTM D1655.