Continuous Fuel Oxidation Monitoring via Spectroscopic Indicators
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Solution Overview
Problem
Current methods for determining the oxidation stability of fuels, such as kerosene and diesel, are inadequate as they do not provide a reliable correlation between varnish formation potential and the actual oxidation state of fuels, often requiring multiple techniques and only allowing measurement at specific times, lacking continuous monitoring capabilities.
Innovation Solution
A method for continuously monitoring fuel oxidation by determining oxidation reaction progress indicators, such as intermediate or final products, and classifying the oxidation state based on these indicators, allowing for real-time assessment and alerting users to significant degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional chemical analysis techniques (FTIR, gas chromatography, impedance spectroscopy) are used to determine fuel stability, then measurement can be performed at specific times, but continuous monitoring capability is lacking
Solution Approach 1:
The patent implements continuous monitoring of fuel oxidation by maintaining constant measurement of oxidation products (aldehydes, ketones, carboxylic acids) using spectroscopic or chromatographic methods coupled with automated data processing, eliminating the need for discrete time-point measurements and enabling real-time tracking of oxidation progress throughout storage and transport
Solution Approach 2:
The patent replaces manual, discrete sampling and analysis with automated analytical systems that continuously measure oxidation product concentrations. The system uses spectroscopic detection (FTIR, NMR, or mass spectrometry) combined with computer-controlled data acquisition and processing to automatically generate oxidation state assessments without human intervention between measurements
2Reliability
If multiple analysis techniques are combined to comprehensively assess fuel oxidation, then a more complete vision is achieved, but device complexity increases
Solution Approach 1:
The patent employs a single multi-functional analytical platform that can detect multiple oxidation products (aldehydes, ketones, carboxylic acids) simultaneously using one instrument system. The system integrates sample handling, separation, detection, and data analysis functions into a unified apparatus that provides comprehensive oxidation assessment without requiring multiple separate analytical instruments
Solution Approach 2:
The patent combines the detection of various oxidation products (aldehydes, ketones, carboxylic acids) into a single integrated measurement process. By using a unified analytical method that simultaneously quantifies multiple oxidation markers, the system achieves comprehensive fuel assessment while avoiding the complexity of coordinating multiple separate analysis techniques
3Reliability
If forced oxidation methods are used to determine induction period, then oxidation stability can be assessed, but the correlation with actual oxidation state during storage is unreliable
Solution Approach 1:
The patent measures actual oxidation product concentrations (aldehydes, ketones, carboxylic acids) at various stages of fuel storage and transport under realistic conditions, then establishes empirical relationships between these measured concentrations and the induction period determined by forced oxidation. This creates a calibration framework that allows conversion of routine oxidation product measurements into meaningful stability assessments correlated with forced oxidation results
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables continuous monitoring of fuel degradation and oxidation state, providing timely alerts and enabling preventive or corrective actions to maintain fuel quality, applicable to both fossil and biomass fuels during logistics and on-board storage.
Implementation Method 1
a) determining at least one progress indicator of at least one oxidation reaction with at least one component of the fuel
Data Source
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Figure 3
AI summary
The present invention relates to a method for continuously monitoring the progress of oxidation of a fuel comprising at least the following steps: • Determining at least one indicator of the progress of the oxidation reaction to be monitored, • Measuring the level of said indicator of the progress of the oxidation reaction in said fuel, • Classifying the progress of oxidation of said fuel, • Determining the actions to take depending on said classification.