Renewable jet fuel derived from biomass

Abstract

A single pass direct conversion of biomass derived oxygenates to longer chain hydrocarbons is described. The longer chain hydrocarbons include higher naphthene content which is quite useful in the distillate range fuels or more particularly, the jet and diesel range fuels. Naphthenes help the biomass derived hydrocarbons meet product specifications for jet and diesel while really helping cold flow properties.

1 . A renewable jet fuel derived at least in part from biomass comprising:
 approximately 0 to 10 wt % n-paraffins,   approximately 5 to 20 wt % iso-paraffins,   approximately 15% to 95 wt % naphthenes,   approximately 5 to 50 wt % 1-ring naphthenes,   approximately 0 to 50 wt % 2-ring naphthenes,   approximately 0 to 10 wt % 3-ring naphthenes, and   approximately 0 to 25 wt % aromatics.   
     
     
         2 . A renewable jet fuel according to  claim 1  comprising at least 25 weight percent naphthenes. 
     
     
         3 . A renewable jet fuel according to  claim 1  comprising at least 45 weight percent naphthenes. 
     
     
         4 . A renewable jet fuel according to  claim 1  comprising at least 70 weight percent naphthenes. 
     
     
         5 . A renewable jet fuel according to  claim 1  comprising up to a maximum of 90 weight percent naphthenes. 
     
     
         6 . The renewable jet fuel according to  claim 1  having a freeze point of less than −40 degrees Fahrenheit. 
     
     
         7 . The renewable jet fuel according to  claim 1  having a flashpoint greater than 100 degrees Fahrenheit. 
     
     
         8 . The renewable jet fuel according to  claim 1  wherein at least 95% of the jet fuel is derived from biomass. 
     
     
         9 . The renewable jet fuel according to  claim 1  wherein at least 90% of the jet fuel is derived from biomass. 
     
     
         10 . The renewable jet fuel according to  claim 1  wherein the jet fuel is a drop in jet fuel that meets all specifications for Jet A and JP-8.