With recent progress of analytical and computing techniques, detailed compositions of heavy oils are becoming clear. We have developed “Petroleomics” for detailed analysis, reaction modeling, and properties estimations of heavy oils. In this study, core structures estimations such as aromatic, naphthenic and heterocyclic rings has been developed by using of Collision Induced Dissociation Fourier Transform Ion Cyclotron Resonance Mass Spectroscopy (CID FT-ICR-MS) to break alkyl side chain and linkage of petroleum molecules. The samples were prepared by separating vacuum residue into seven fractions (saturate, 1A, 2A, 3A+, polar and polyaromatic resins, and asphaltene) by column chromatography before measurements. The list of core structures was made by analyzing the results of each fractions of vacuum residue, and then estimations were carried out by comparison of the fragment mass and the list of core structures. By using this method, it was confirmed that almost fragment ions (~90% of total abundance) were assigned to core structures for some petroleum samples.

Core structures analysis of heavy oils by using of CID FT-ICR-MS

250th National Meeting (2015)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.