FUEL COMPOSITION

• US 20080000149A1
• Filed: 06/30/2006
• Published: 01/03/2008
• Est. Priority Date: 06/30/2006
• Status: Active Grant

• Current Assignee: Afton Chemical Corporation
• Original Assignee: Afton Chemical Corporation
• Inventors: ARADI, Allen A.
• Granted Patent: US 8,852,299 B2
• Time in Patent Office: Days
• US Class Current: 44/359
• CPC Class Codes: C10L 1/00 Liquid carbonaceous fuels
• CPC Class Codes: C10L 1/1241 metal carbonyls
• CPC Class Codes: C10L 1/305 organo-metallic compounds (containing a metal to carbon bond)
• CPC Class Codes: C10L 10/10 for improving the octane number
• CPC Class Codes: C10L 2300/20 Mixture of two components

Abstract

There is disclosed a method for combusting a secondary organometallic compound in an engine including (a) combining a secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl, (b) introducing the combination from (a) into a fuel, and (c) causing the fuel from (b) to be combusted in the engine.

Claims

1. A method for combusting an organometallic compound in an engine comprising;

(a) combining a secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl,

(b) introducing the combination from (a) into a fuel, and

(c) causing the fuel from (b) to be combusted in the engine.

2. The method of claim 1, wherein the engine is chosen from a spark ignition engine, and an advanced spark ignition engine with and without catalyzed exhaust after treatment systems with OBD monitoring.

3. The method of claim 1, wherein the engine is chosen from a compression ignition engine with and without catalyzed exhaust after treatment systems with OBD monitoring.

4. The method of claim 1, wherein the methylcyclopentadienyl manganese tricarbonyl is present in the fuel composition at a treat rate ranging from about 1 to about 20 mg Mn/L.

5. The method of claim 1, wherein the methylcyclopentadienyl manganese tricarbonyl is present in the fuel composition at a treat rate ranging from about 2 to about 16 mg Mn/L.

6. The method of claim 1, wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined in a ratio of about 5 to about 95, respectively.

7. The method of claim 1, wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined in a ratio of about 10 to about 90, respectively.

8. The method of claim 1, wherein the secondary organometallic compound is a manganese-containing organometallic compound.

9. The method of claim 6, wherein the manganese-containing compound is cyclopentadienyl manganese tricarbonyl.

10. The method of claim 1, wherein the secondary organometallic compound is selected from the group consisting of dimethylcyclopentadienyl manganese tricarbonyl, trimethylcyclopentadienyl manganese tricarbonyl, tetramethylcyclopentadienyl manganese tricarbonyl, pentamethylcyclopentadienyl manganese tricarbonyl, ethylcyclopentadienyl manganese tricarbonyl, diethylcyclopentadienyl manganese tricarbonyl, propylcyclopentadienyl manganese tricarbonyl, isopropylcyclopentadienyl manganese tricarbonyl, tert-butylcyclopentadienyl manganese tricarbonyl, octylcyclopentadienyl manganese tricarbonyl, dodecylcyclopentadienyl manganese tricarbonyl, ethylmethylcyclopentadienyl manganese tricarbonyl, indenyl manganese tricarbonyl, and the like, including mixtures of two or more such compounds.

11. A method for enhancing octane number of gasoline comprising

(a) combining cyclopentadienyl manganese tricarbonyl and methylcyclopentadienyl manganese tricarbonyl, and

(b) adding said combination to the gasoline.

12. A method of optimizing octane performance in a fuel composition comprising measuring a pre-eutectic transition point temperature of a synergistic blend comprising methylcyclopentadienyl manganese tricarbonyl and a secondary organometallic compound.

13. The method of claim 12, wherein the pre-eutectic transition point temperature correlates with enhanced octane performance.

14. A eutectic mixture comprising methylcyclopentadienyl manganese tricarbonyl and a secondary organometallic compound.

15. The mixture of claim 14, wherein the mixture is a binary mixture.

16. The mixture of claim 14, wherein the mixture is a trinary mixture.

17. The mixture of claim 14, wherein the mixture is synergistic.

18. The mixture of claim 14, wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined in a ratio of about 5 to about 95, respectively.

19. The mixture of claim 14, wherein the secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl are combined in a ratio of about 10 to about 90, respectively.

20. A blend of combustion improvers useful for optimizing octane response of a fuel comprising mixtures of two or more materials selected from the group consisting of organometallic cyclomatic manganese tricarbonyls, MMT/CMT, MMT/R—

Mn(CO)₅ where R is an aryl- or alkyl-radical species;

mixed metal organometallics of Mn/Fe, Mn/Ce, Mn/Pt, Mn/Platinum-group metals, Mn/Cu, Fe/Ce, Fe/Platinum-group metals, Fe/Cu, Mn/Pb, Fe/Pb, Ce/Pb, and Pb/Platinum-group metals.

21. A method for solubilizing cyclopentadienyl manganese tricarbonyl in a hydrocarbonaceous fuel, said method comprising combining in any order cyclopentadienyl manganese tricarbonyl, methyl cyclopentadienyl manganese tricarbonyl, and a hydrocarbonaceous fuel.

22. The method of claim 21, wherein the cyclopentadienyl manganese tricarbonyl is added to the methyl cyclopentadienyl manganese tricarbonyl.

23. The method of claim 21, wherein the methylcyclopentadienyl manganese tricarbonyl is added to the cyclopentadienyl manganese tricarbonyl.

24. The method of claim 21, wherein the methylcyclopentadienyl manganese tricarbonyl and the cyclopentadienyl manganese tricarbonyl are added in any order to the fuel.

25. A method for depressing the freezing point of methylcyclopentadienyl manganese tricarbonyl comprising combining with the methylcyclopentadienyl manganese tricarbonyl an amount of cyclopentadienyl manganese tricarbonyl.

26. A method for combusting an organometallic compound in a combustion system comprising;

(a) combining a secondary organometallic compound and methylcyclopentadienyl manganese tricarbonyl,

(b) introducing the combination from (a) into a fuel, and

(c) causing the fuel from (b) to be combusted in the combustion system;

wherein the combustion system is chosen from utility and industrial burners, boilers, furnaces, and incinerators.