Performance diesel fuels and additives
AssigneeFlint Hills Resources, LP
InventorsCharles Selvidge, Ken Copeland
Life of this patent
Estimating the term…
Abstract
Diesel fuels with additives to increase cetane number include chemistries to increase surface absorption and improve lubricity in high cetane number fuels. Fuels and additives also contain thermal stability improvers.
Claims44
A diesel fuel additive composition comprising:
- a base oil;
- cetane improver effective to increase cetane number of a diesel fuel by at least 2 cetane numbers;
- and
- an amount of a surface absorption compound effective to improve the lubricity of a diesel fuel containing the additive to less than 520 microns in an HFRR wear test.
A diesel fuel additive composition comprising:
- cetane improver effective to increase cetane number of a diesel fuel by at least 2 cetane numbers;
- and
- an amount of a surface absorption compound effective to improve the lubricity of a diesel fuel containing the additive to less than 520 microns in an HFRR wear test;
- wherein the additive further comprises one or more of:
- a thermal stabilizer;
- a detergent;
- a microbicide;
- a marker substance;
- and
- a dispersant.
A diesel fuel comprising:
- diesel base oil;
- a cetane improver effective to increase cetane number of the diesel fuel by at least 2 cetane numbers;
- and
- wherein the lubricity of the diesel fuel is less than 520 microns in an HFRR wear test.
A process for improving the chemistry of a diesel fuel with enhanced ignition quality, wherein the fuel comprises a diesel base oil and a cetane improver effective to improve the ignition quality by at least 2 cetane numbers, comprising adding from about 10 to about 500 ppm alkyl esters, mono acids of fatty acids, alkyl esters of fatty acids, or combinations thereof, effective to increase the lubricity of the enhanced diesel fuel.
Dependencies are inferred from the claim text.