In this work, crude oil fractions obtained using n-pentane were analyzed using Atmospheric Pressure Photoionization (APPI), and Laser Desorption Ionization (LDI) coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS). The crude oil was supported on Ottawa sand and transfer to a glass column. N-pentane was added to the column and the fractions drained at the bottom were collected. Results indicate that the fractions obtained are highly deficient in hydrogen, and become more aromatic as more n-pentane passes through the column. The analysis of the fractions also indicate that the number of heteroatoms per molecule increases as the hydrogen content in the fractions decreases. These findings seem to indicate that the interaction of these fractions into the Ottawa sand is driven by aromaticity. Also, the presence of heteroatomic functionalities seems to play a significant role in the interactions between the crude oil components and the Ottawa sand.<br/>

FT-ICR characterization of crude oil fractions obtained using n-pentane

2019 Spring National Meeting

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