	US 7,604,672 B2
	Additive for hydrocarbon fuel and related process
Dwight Morrell Smith, Littleton, Colo. (US); Abdul R. Chughtai, Broomfield, Colo. (US); and James Dadura, Chicago, Ill. (US); James Dadura, Jr., legal representative
Assigned to EnviroFuels, LLC, Houston, Tex. (US)
Filed on Jun. 23, 2004, as Appl. No. 10/875,765.
Claims priority of provisional application 60/480701, filed on Jun. 23, 2003.
Prior Publication US 2005/0028434 A1, Feb. 10, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. C10L 1/22 (2006.01); C10L 1/12 (2006.01)

U.S. Cl. 44—408 [44/457]

10 Claims

1. A fuel additive comprising a phosphorus-containing parent solution and a carrier fluid, the phosphorus-containing parent solution comprising a mixture of salts, the mixture of salts comprising:

[Y]_xH₂PO₄;

[Y]_x+1HPO₄; and

[NH₄]₂HPO₄, wherein [Y] is a cation, wherein x is an integer, the carrier fluid being operable to maintain the salts within the carrier fluid in at least a partially dispersed state, the fuel additive being operable to enhance combustion when placed into contact with fuel in a combustion zone and combusted, the enhanced combustion being measurable by increased fuel efficiency or decreased pollutant output in an exhaust gas resulting from the combustion of the fuel and the fuel additive.