<p>This dissertation focused on the development of mass
spectrometric methodologies, separation techniques, and engineered devices for
the optimal analysis of complex mixtures relevant to the energy sector, such as
alternative fuels, petroleum-based fuels, crude oils, and processed base oils.
Mass spectrometry (MS) has been widely recognized as a powerful tool for the
analysis of complex mixtures. In complex energy samples, such as
petroleum-based fuels, alternative fuels, and oils, high-resolution MS alone may
not be sufficient to elucidate chemical composition information. Separation
before MS analysis is often necessary for such highly complex energy samples.
For volatile samples, in-line two-dimensional gas chromatography (GC×GC) can be used to separate complex
mixtures prior to ionization. This technique allows for a more accurate
determination of the compounds in a mixture, by simplifying the mixture into
its components prior to ionization, separation based on mass-to-charge ratio (<i>m/z</i>), and detection. A GC×GC coupled to a high-resolution
time-of-flight MS was utilized in this research to determine the chemical
composition of alternative aviation fuels, a petroleum-based aviation
fuel, and alternative aviation fuel candidates and blending components as well
as processed base oils.</p>
Additionally, as the cutting edge of science and
technology evolve, methods and equipment must be updated and adapted for new
samples or new sector demands. One such case, explored in this dissertation,
was the validation of an updated standardized method, ASTM D2425 2019. This
updated standardized method was investigated for a new instrument and new
sample type for a quadrupole MS to analyze a renewable aviation fuel. Lastly,
the development and evaluation of a miniaturized coreflood device for analyzing
candidate chemically enhanced oil recovery (cEOR) formulations of brine,
surfactant(s), and polymer(s) was conducted. The miniaturized device was used
in the evaluation of two different cEOR formulations to determine if the components
of the recovered oil changed.
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/11292086 |
| Date | 28 November 2019 |
| Creators | Katherine Elisabeth Wehde (8054564) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/THE_DEVELOPMENT_OF_MASS_SPECTROMETRIC_METHODS_FOR_THE_DETERMINATION_OF_THE_CHEMICAL_COMPOSITION_OF_COMPLEX_MIXTURES_RELEVANT_TO_THE_ENERGY_SECTOR_AND_THE_DEVELOPMENT_OF_A_NEW_DEVICE_FOR_CHEMICALLY_ENHANCED_OIL_RECOVERY_FORMULATION_EVALUATIO/11292086 |
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