Claims
- 1. A high temperature stable platinum and/or cerium fuel additive dosing unit, comprising:
(a) catalytic metal additive concentrate comprising fuel soluble platinum and/or cerium composition stable at temperatures above 100° C., uniformly dispersed in an organic carrier in relative quantities to be normally solid; (b) encapsulated with a solid polymer as an infusion control composition.
- 2. A high temperature stable platinum and/or cerium fuel additive dosing unit according to claim 1, wherein the catalytic metal additive concentrate is embedded in the polymer.
- 3. A high temperature stable platinum and/or cerium fuel additive dosing unit according to either of claims 1 or 2, wherein the catalytic metal additive concentrate is uniformly dispersed within the polymer.
- 4. A high temperature stable platinum and/or cerium fuel additive dosing unit according to any of claims 1, 2 or 3, wherein the catalytic metal additive concentrate comprises platinum acetylacetoneate.
- 5. A high temperature stable platinum and/or cerium fuel additive dosing unit according to any of claims 1, 2, 3 or 4, wherein the catalytic metal additive concentrate comprises a cerium soap.
- 6. A method of preparing a solid dosing form of fuel additive, by:
preparing a stable dispersion of platinum composition in a predetermined Pt/Ce ratio in a solution of cerium soap; encapsulating the viscous catalytic metal additive concentrate comprising fuel soluble platinum and/or cerium composition stable at temperatures above 100° C. with a infusion controlling polymer.
- 7. A method according to claim 6, wherein the viscous catalytic metal additive concentrate is encapsulated by embedding it in an infusion control polymer.
- 8. A method according to claim 6, including the further steps of:
mixing the dispersion of platinum composition and cerium soap with an infusion control polymer under conditions effective to uniformly distribute the dispersion within the polymer; and forming the resulting mixture of polymer into a dosing unit of predetermined shape.
- 9. A method according to claim 7, including the further step of: embedding the dosing unit in an infusion control polymer.
- 10. A method of preparing a solid dosing form of fuel additive, by:
preparing a solution of a platinum and/or cerium composition including a low-boiling solvent including a sufficient amount of high-boiling solvent to retain fluidity of the composition in the absence of the low-boiling solvent; evaporating the low-boiling solvent to prepare a viscous catalytic metal additive concentrate comprising fuel soluble platinum and/or cerium composition stable at temperatures above 100° C.; encapsulating the viscous catalytic metal additive concentrate comprising fuel soluble platinum and/or cerium composition stable at temperatures above 100° C. with a infusion controlling polymer.
- 11. A method of using a solid dosing form of fuel additive, comprising:
obtaining a solid dosing form of catalyst according to any of the preceding claims; and contacting the solid dosing form of catalyst with fuel to partially dissolve the polymer and introduce the catalyst into the fuel prior to combustion.
- 12. A method of forming a catalytic metal additive concentrate, comprising:
forming a mixture of a catalytic metal soap and a solvent; removing low-boiling solvent.
- 13. A method according to claim 12, wherein high boiling solvent is added prior to removing low boiling solvent.
- 14. A method according to claim 12, wherein the catalytic metal soap comprises a cerium soap.
- 15. A method according to claim 14, wherein the catalytic metal further comprises platinum acetylacetonate.
- 16. A method according to claim 14, wherein the catalytic metal further comprises COD-Pt-diphenyl.
PRIORITY CLAIM
[0001] This application claims priority to prior U.S. Provisional Patent Application S. No. 60/366,860, filed Mar. 22, 2002.
Provisional Applications (1)
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Number |
Date |
Country |
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60366860 |
Mar 2002 |
US |