Claims
- 1. A process for improving the lubricity of distillate fuels heavier than gasoline the fuel being derived from a non shifting Fischer-Tropsch process or from a hydrotreated fuel and having 500 ppm or less sulfur comprising adding to the fuel at least about 0.1 wt % and less than 5 wt % of C.sub.7 + primary, linear alcohols.
- 2. The process of claim 1 wherein the sulfur content of the fuel is less than 50 ppm by wt.
- 3. The process of claim 2 wherein the fuel is a diesel fuel and has a lubricity by the BOCLE test of less than 50% of a high referenced value.
- 4. The process of claim 2 wherein the fuel is a jet fuel and has a lubricity by the BOCLE test of less than 25% of a high reference value.
- 5. The process of claim 3 wherein the alcohol is a C.sub.9 +.
- 6. The process of claim 3 wherein the lubricity is less than 35%.
- 7. The process of claim 1 wherein the alcohol is a C.sub.9 +.
- 8. The process of claim 7 wherein the fuel comprises a fraction boiling in the range 160-370.degree. C.
- 9. The process of claim 1 wherein the fuel contains only trace amounts of oxygen.
- 10. The process of claim 1 wherein the alcohol additive is essentially devoid of carboxylic acid functionality.
- 11. The process of claim 1 wherein the alcohol additive is essentially free of methanol.
CROSS REFERENCE TO RELATED APPLICATIONS
Continuation-in-Part of U.S. Ser. No. 798,383, filed Feb. 7, 1997, now abandoned.
US Referenced Citations (11)
Foreign Referenced Citations (4)
Number |
Date |
Country |
732964 |
Jun 1932 |
FRX |
859686 |
Dec 1940 |
FRX |
2650289 |
Feb 1991 |
WOX |
9623855 |
Aug 1996 |
WOX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
798383 |
Feb 1997 |
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