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US 6,607,568 B2Granted
Synthetic diesel fuel and process for its production (law3 1 1)
AssigneeExxonMobil Research and Engineering Company
InventorsRobert Jay Wittenbrink, Richard Frank Bauman, Paul Joseph Berlowitz, Bruce Randall Cook
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Abstract
Diesel fuels or blending stocks having excellent lubricity, oxidative stability and high cetane number are produced from non-shifting Fischer-Tropsch processes by separating the Fischer-Tropsch product into a lighter and heavier fractions, e.g., at about 700° F., subjecting the 700° F.+ fraction to hydro-treating, and combining the 700° F.− portion of the hydrotreated product with the lighter fraction that has not been hydrotreated.
Claims8
A process for producing a distillate fuel heavier than gasoline comprising:
- (a) separating the product of a Fischer-Tropsch process into a heavier fraction and a lighter fraction;
- (b) hydroisomerizing the heavier fraction at hydroisomerization conditions and recovering a 700° F.− fraction therefrom;
- and
- (c) blending at least a portion of the recovered fraction of step (b) with at least a portion of the lighter fraction.
1 more element
Dependencies are inferred from the claim text.