IP Library Granted Patent US 7,524,340
Granted Patent B2
US 7,524,340 · App. 10/424,415 · Granted Apr 28, 2009

Catalyst and method for improving combustion efficiency in engines, boilers, and other equipment operating on fuels

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Quick Facts
Patent No.
US 7,524,340
App. No.
10/424,415
Granted
Apr 28, 2009
Kind
B2
Abstract

A catalyst and method for improving combustion efficiency in boilers, engines, and other equipment by adding to fossil and other fuels a fuel additive that contains an oil-soluble iron compound and an over-based magnesium compound and for which the median particle size of the additive is less than about 0.01 micrometers.

Claims (20)

1. A catalyst for improving combustion, the catalyst comprising: a dispersion including suspended particles, the suspended particles having a size distribution and a median particle size, wherein at least a portion of the particles includes a magnesium compound and an iron compound in the form of a colloidal dispersion including ferric oxide stabilized in a hydrocarbon solvent, wherein die median particle size is less than about 0.01 micrometers, and wherein the magnesium compound is over-based.

2. A catalyst for improving combustion, the catalyst comprising: a dispersion including suspended particles, the suspended particles having a size distribution and a median particle size, at least a portion of the particles including an iron compound and a magnesium compound, wherein the median particle size is less than about 0.01 micrometers, and wherein the magnesium compound is over-based and includes magnesium carboxylate.

3. A catalyst for improving combustion, the catalyst comprising: a dispersion including suspended particles, the suspended particles having a size distribution and a median particle size, at least a portion of the particles including an iron compound and a magnesium compound, wherein the median particle size is less than about 0.01 micrometers, and wherein the magnesium compound is over-based and includes a mixture of magnesium carboxylate, carbonate, and magnesium sulfonate.

4. A catalyst for improving combustion, the catalyst comprising: a dispersion including suspended particles, the suspended particles having a size distribution and a median particle size, at least a portion of the particles including an iron compound and a magnesium compound suspended in liquid and agglomerating to form a plurality of bimetallic particles, said particles having a size distribution and a median particle size, wherein the median particle size is less than about 0.01 micrometers and wherein the magnesium compound is over-based.

5. The catalyst of claim 4 , wherein at least 50% of the particles have a median particle size between 0.0001 and 0.0076 micrometers.

6. The catalyst of claim 4 , wherein at least 25% of the particles have a median particle size between 0.0001 and 0.0065 micrometers.

7. The catalyst for claim 4 , wherein the iron compound is oil-soluble.

8. The catalyst of claim 4 , wherein the magnesium compound includes magnesium carboxylate.

9. The catalyst of claim 4 , wherein the magnesium compound includes magnesium sulfonate.

10. The catalyst of claim 4 , wherein the magnesium compound includes a mixture of magnesium carboxylate and magnesium sulfonate.

11. A method of catalyzing fuel combustion in combustion equipment comprising the steps of: creating a solution in which particles are suspended, the particles having a size distribution and a median particle size, the median particle size less than about 0.01 micrometers, and the particles containing an iron compound and a magnesium compound; and adding the dispersion to the fuel, wherein the magnesium compound is over-based.

12. The method of claim 11 , wherein at least 50% of the particles have a median particle size between 0.0001 and 0.0076 micrometers.

13. The method of claim 11 , wherein at least 25% of the particles have a median particle size between 0.0001 and 0.0065 micrometers.

14. The method of claim 11 , wherein the iron compound is oil-soluble.

15. The method of claim 11 , wherein the magnesium compound includes magnesium carboxylate.

16. The method of claim 11 , wherein the magnesium compound includes magnesium sulfonate.

17. The method of claim 11 , wherein the magnesium compound includes a mixture of magnesium carboxylate and magnesium sulfonate.

18. The method of claim 11 , in which the fuel comprises fossil fuels.

19. The method of claim 11 , wherein the fuel is selected from a group consisting of liquid petroleum fuels, solid hydrocarbon fuels, and wood.

20. The method of claim 11 , wherein the combustion equipment is selected from the group consisting of combustion turbine engines, steam boilers, industrial boilers, package boilers, industrial heaters, spark-ignited reciprocating engines, and compression-ignited reciprocating engines.

Assignments (3)
SECURITY INTEREST Recorded Apr 6, 2015
From: EFFICIENT FUEL SOLUTIONS, LLC
To: TEXAS STAR BANK
Reel/Frame 035337/0885 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 28, 2014
From: MAY, WALTER R.; SFA INTERNATIONAL, INC.
To: EFFICIENT FUEL SOLUTIONS, LLC
Reel/Frame 034589/0335 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 6, 2003
From: MAY, WALTER R.
To: SFA INTERNATIONAL, INC.
Reel/Frame 014557/0695 →
Continuity (4)
Continuation In Part 1041754700 · Apr 17, 2003
Provisional Application 6037324900 · Apr 17, 2002
Provisional Application 6030457900 · Jul 11, 2001
Related Publication 20030192232A1 · Oct 16, 2003