Method and apparatus for improving combustion, thermal efficiency and reducing emissions by treating fuel

• US 4,629,472 A
• Filed: 12/17/1985
• Issued: 12/16/1986
• Est. Priority Date: 06/19/1985
• Status: Expired due to Term

• Current Assignee: Platinum Plus, Inc.
• Original Assignee: Fuel Tech Incorporated
• Inventors: Sullivan, James C., Haney, William M. III
• Primary Examiner(s): Harris-Smith, Mrs. Y.
• Application Number:
  US06/810,076
• Time in Patent Office: 364 Days
• Field of Search: 44/51, 44/68
• US Class Current: 44/301
• CPC Class Codes: C10L 1/328 Oil emulsions containing water or any other hydrophilic phase

Abstract

Apparatus and processes are disclosed for treating liquid fuels to include precious metal catalysts dispersed within a liquid which is dispersed within the fuels. The precious metal catalysts are preferably present at a level of from about 0.005 to 0.5 ppm by weight of the treated fuel, and the liquid is preferably present at a level of from about 3 to about 15% by volume of the fuel. The fuel is treated prior to introduction into a chamber for combustion.

Claims

1. A method of improving the combustion of fuel in a chamber by treating the fuel to form a suspension comprising:

(a) mixing with such fuel a quantity of emulsifying liquid to form a stable suspension; and

(b) adding a small amount of precious metal catalyst so that such metal is present in such suspension prior to its introduction into such chamber.

2. The method of claim 1 in which the catalyst metal is first mixed with a liquid and introduced into the fuel to cause the catalyst to be present in the suspension.

3. The method of claim 1 in which the catalyst metal is first mixed with a liquid and introduced into the emulsifying liquid which in turn is mixed with the fuel.

4. The method of claim 1 in which the catalyst metal is first mixed with a liquid and then introduced into the formed suspension.

5. The method of claim 1 in which the catalyst metal in solid form is introduced into the fuel.

6. The method of claim 1 in which the catalyst metal in solid form is introduced into the emulsifying liquid.

7. The method of claim 1 in which the catalyst metal in solid form is introduced into the formed suspension.

8. The method of claim 1 in which the emulsifying liquid is water.

9. A method of improving the combustion of fuel in a chamber by treating the fuel to form a suspension comprising:

(a) admixing with a quantity of emulsifying liquid a small amount of precious metal catalyst to form a liquid catalyst medium;

(b) mixing the liquid catalyst medium with the fuel under turbulent conditions to form a stable suspension of fuel, emulsifying liquid and catalyst; and

(c) thereafter introducing the suspension into the chamber for combustion therein.

10. The method of claim 9 in which the quantity of emulsifying liquid is about 3% to about 15% by volume to the fuel and the small amount of precious catalyst added to form the catalyst medium is an amount sufficient to provide from about 0.005 ppm to about 0.5 ppm catalyst metal by weight in the said suspension.

11. The method of claim 9 in which the small amount of precious metal catalyst added to form the catalyst medium is an amount sufficient to provide about 0.02 ppm to about 0.06 ppm catalyst metal in said suspension.

12. The method of claim 9 in which the suspension is stored for a substantial period of time.

13. The method of claim 9 in which the suspension is heated prior to its introduction into the chamber.

14. A treated liquid fuel comprising an emulsified suspension of

(a) about 85% to about 97% by volume liquid carbonaceous fuel;

(b) about 15% to 3% water; and

(c) about 0.005 ppm to about 0.5 ppm precious catalyst metal by weight.

15. A method of improving the combustion of fuel in a chamber by treating the fuel to form a suspension comprising:

(a) mixing with such fuel at least 3% by volume of an emulsifying liquid to form a stable suspension; and

(b) adding a small amount of precious metal catalyst so that such metal is present in such suspension prior to its introduction into such chamber.

16. A method of improving the combustion of fuel in a chamber by treating the fuel to form a suspension comprising:

(a) admixing with at least 3% by volume of an emulsifying liquid a small amount of precious metal catalyst to form a liquid catalyst medium;

(b) mixing the liquid catalyst medium with the fuel under turbulent conditions to form a stable suspension of fuel, emulsifying liquid and catalyst; and

(c) thereafter introducing the suspension into the chamber for combustion therein.