Marker compositions with nitrogen compounds, and methods for making and using same

Abstract

The present disclosure provides compositions, methods, and systems for identifying marked hydrocarbon fluids. These compositions, methods, and systems utilize a gas chromatography marker including a non-pyrrolidinone nitrogen-containing compound. The methods and systems can identify the presence or absence of the gas chromatography marker and / or the non-pyrrolidinone nitrogen-containing compound.The compositions, methods, and systems can optionally utilize a spectroscopic marker.

Description

[0001] Cross References to Related Applications [0002] This application is related to, claims priority to, U.S. Provisional Patent Application No. 62 / 549,087, filed August 23, 2017, which is hereby incorporated by reference for all purposes. [0003] Statement Regarding Federally Funded Research [0004] none [0005] Background of the invention [0006] The field of the invention is marker compositions for fluids. In particular, the invention relates to marker compositions having nitrogen-containing compounds. [0007] A marker is a substance that can be used to label a product, usually a petroleum product, as well as alcohol and many other suitable fluids, for subsequent detection. The markers are usually dissolved in the fluid to be identified and subsequently detected by performing physical or chemical tests on the labeled fluid. For example, markers are sometimes used by government authorities to determine that proper taxes have been paid on a particular grade of fue...

AI Technical Summary

Problems solved by technology

Key components of brand-name products are often present at very low levels, making quantification of assays diluted with inferior products difficult, time-consuming and expensive

[0009] Marker systems for petroleum products including but not limited to fuels, lubricating oils, greases, etc. have been proposed but suffer from various drawbacks that hinder their effectiveness

Many currently available markers cannot be used as forensic markers detected by, but not limited to, by gas chromatography (GC) analysis, and simple methods of detection by, but not limited to, marker development or extraction. Field Test Markers

Many known markers are easily removed from the fluid to which they are added, compromising the integrity of the marker system

Many currently available markers cannot be easily combined to detect marker products with components that cannot be washed out from the fuel

and current laboratory assays for these markers are very expensive

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