Unraveling the Mysteries of Used Engine Oil with Pyrolysis GCxGC-TOFMS and Pyrolysis GC-HRTOFMS
Mr. Paul Harvath
Wednesday, June 29, 2016
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Chapters
Introduction
Outline of today’s talk
Cafe* Standard to rise to 54.5 mpg by 2025
Engine oil composition
Engine oil changes over time
How bad is this matrix?
How long have engine deposits been studied?
Base oil degradation mechanism
Engine oil oxidation
Current oxidation measurements - FTIR
Current oxidation measurements - TAN
We can do better!!
Sample creation
Proposed analytical scheme
GC x GC methodology: pt 1.
GC x GC Data display
GC x GC methodology: pt.2
Pyrolysis methodology
Pyrolysis GCxGC-TOFMS 200°C-300°C pt.1
ION 60 extracted ion plots for 200°C-300°C pt. 1
Pyrolysis GCxGC-TOFMS 300°C-600°C pt.2
ION 60 extracted ion plots for 300°C-600°C pt.2
Lessons learned
Summary
A peak into the future
Chemical ionization (CH3) AIC* plots
Kendrick Plot
The changing view of Engine Oil analysis
Acknowledgements
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