Biphenol Ether Markers for Fuel Code Diversity
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Solution Overview
Problem
There is a need for additional marker compounds to maximize the available codes for marking liquid hydrocarbons and other fuels and oils, as existing markers may not provide sufficient diversity for digital marking systems.
Innovation Solution
The method involves adding specific compounds with the formula (I), where R represents C1-C18 alkyl, C3-C18 alkenyl, or C3-C18 alkynyl groups, to petroleum hydrocarbons or liquid biologically derived fuels, allowing for the creation of unique codes through the ratios of these markers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing marker compounds are used for marking liquid hydrocarbons and fuels, then the marking function is achieved, but the diversity of available codes is insufficient
Solution Approach 1:
The patent applies parameter changes by systematically varying the R group parameters in the marker compound structure. Specifically, it uses different alkyl (C1-C18), alkenyl (C3-C18), and alkynyl (C3-C18) groups with varying chain lengths and structures. This parametric variation generates a family of marker compounds with diverse molecular weights, boiling points, and chromatographic behaviors, thereby maximizing the available codes for digital marking systems without requiring a proportionally large increase in the number of compound classes
Solution Approach 2:
The patent segments the marker compound structure into a standardized core framework (the biphenol ether structure with formula I) and variable R group segments. This segmentation allows the core structure to provide consistent detectability and chemical stability, while the R segments provide combinatorial diversity. By fixing the core and varying only the R groups, the system achieves high code diversity from a manageable number of compound variants
Data Source
AI summary
A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel by adding to the petroleum hydrocarbon or liquid biologically derived fuel at least one compound having formula (I), wherein R represents C1-C18 alkyl, C3-C18 alkenyl or C3-C18 alkynyl.