RENEWABLE DIESEL FUEL DERIVED FROM BIOMASS
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 diesel 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 5 to 50 wt % 2-ring naphthenes,
approximately 0 to 15 wt % 3-ring naphthenes, and
approximately 0 to 25 wt % aromatics.
2 . A renewable diesel fuel according to claim 1 comprising at least 25 weight percent naphthenes.
3 . A renewable diesel fuel according to claim 1 comprising at least 45 weight percent naphthenes.
4 . A renewable diesel fuel according to claim 1 comprising at least 70 weight percent naphthenes.
5 . A renewable diesel fuel according to claim 1 comprising up to a maximum of 92 weight percent naphthenes.
6 . The renewable diesel fuel according to claim 1 having a cloud point of less than −20 degrees Fahrenheit and a pour point of less than −20 degrees Fahrenheit.
7 . The renewable diesel fuel according to claim 1 having a flashpoint greater than 125 degrees F.
8 . The renewable diesel fuel according to claim 1 having a cetane rating of at least 40.
9 . The renewable diesel fuel according to claim 1 wherein at least 95% of the diesel fuel is derived from biomass.
10 . The renewable diesel fuel according to claim 1 wherein at least 90% of the diesel fuel is derived from biomass.
11 . The renewable diesel fuel according to claim 1 wherein the jet fuel is a drop in diesel fuel that meets all specifications for Number 2 Diesel.