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US 2022/0136968 A1Published application
Methods of identifying a hydrocarbon fuel
AssigneeAfton Chemical Corporation
InventorScott D. Schwab
Life of this patent
Estimating the term…
Abstract
The present disclosure provides methods for identifying a hydrocarbon fuel, such as the presence and/or amounts of marker compounds having a fluorescence intensity and, through correlation, the presence and/or amounts of additive package(s) within the hydrocarbon fuel.
Claims21
A method for identifying a hydrocarbon fuel, the method comprising:
- obtaining a sample of a hydrocarbon fuel containing a measureable amount of a marker compound, the marker compound having a fluorescence intensity and at least partially soluble in water;
- combining the hydrocarbon fuel with water to form a fuel and water mixture and mixing the fuel and water mixture;
- after the mixing, allowing the fuel and water mixture to separate into a water phase and a fuel phase to at least partially extract the marker compound into the water phase;
- and
- subjecting the water phase to light having a wavelength of 250 nm to 800 nm and observing the fluorescence emitted from the marker compound in the water phase.
2 more elements
A gasoline composition comprising:
- a major amount of gasoline containing at least about 2 volume percent ethanol;
- a gasoline performance additive including an additive selected from the group comprising detergents, antioxidants, carrier fluids, metal deactivators, corrosion inhibitors, biocides, antistatic additives, drag reducing agents, demulsifiers, emulsifiers, dehazers, anti-icing additives, antiknock additives, anti-valve-seat recession additives, lubricity additives, surfactants, combustion improvers, or combinations thereof;
- about 0.1 to about 100 parts per billion of a marker compound having a fluorescence intensity;
- and
- a partition ratio of the marker compound between water and gasoline of at least about 0.1.
2 more elements
Dependencies are inferred from the claim text.