Low sulfur, low emission blends of fischer-tropsch and conventional diesel fuels
AssigneeExxonMobil Research and Engineering Company
InventorsPaul Joseph Berlowitz, Daniel Francis Ryan, Robert Jay Wittenbrink, Jack Wayne Johnson, John Richard Bateman
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Abstract
A blended fuel, useful as a diesel fuel, wherein the fuel blend contains an undercut conventional diesel fuel, blended with a Fischer-Tropsch derived diesel fuel, such that the blend demonstrates better than expected emissions and a reduced sulfur content. In particular, the blend is an asymmetric diesel fuel blend comprising a Fischer-Tropsch derived hydrocarbon distillate having a T95 of at least 600° F., blended with a petroleum derived hydrocarbon distillate having an initial boiling point and a T95 no greater than 640° F.
Claims30
A diesel fuel blend comprising
- a Fischer-Tropsch derived hydrocarbon distillate having a T95 of at least 600° F., and
- a petroleum derived hydrocarbon distillate having a T95 no greater than 640° F.
- wherein the blend has a sulfur content less than 500 wppm.
A method of producing a low sulfur fuel useful as a diesel fuel with low emissions after combustion from a petroleum derived hydrocarbon distillate having a T95 no greater than 640° F., comprising blending said petroleum distillate with a Fischer-Tropsch derived hydrocarbon distillate having a T95 of at least 600° F., wherein the Fischer-Tropsch distillate comprises 10-90 vol. % of the blend and the blend has a sulfur content of less than 500 wppm.
Dependencies are inferred from the claim text.