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Compositional Analysis of Oil Residues by Ultrahigh-Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
- Source :
- Energy & Fuels. 27:2002-2009
- Publication Year :
- 2013
- Publisher :
- American Chemical Society (ACS), 2013.
-
Abstract
- Ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry was used for compositional analysis of polar and asphaltene fractions of complex oil residues. The samples were collected before and after the processing of oil in a residue hydrocracking unit, in which the feed oil was the vacuum distillation residue of the crude oil, and the product sample was the residue collected after the processing. From the asphaltene fraction, as many as ∼26 000 peaks were detected by atmospheric pressure photoionization and more than ∼33 000 peaks by positive-ion electrospray ionization (ESI), with up to 18 distinct heteroatom classes identified. Negative-ion ESI provided complementary information through selective ionization of acidic compounds. The detected species were sorted based on heteroatom class, carbon number and aromaticity (double bond equivalence, i.e. number of rings + double bonds to carbon). The N1 class compounds were predominant in both fractions of the feed and product oils. The su...
- Subjects :
- chemistry.chemical_classification
Residue (complex analysis)
Double bond
Vacuum distillation
Chemistry
General Chemical Engineering
Electrospray ionization
Heteroatom
Analytical chemistry
Energy Engineering and Power Technology
Photoionization
Fourier transform ion cyclotron resonance
Fuel Technology
Asphaltene
Subjects
Details
- ISSN :
- 15205029 and 08870624
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- Energy & Fuels
- Accession number :
- edsair.doi...........5b71c93ab14fae4cbd1f41ff1df4483b