Carbonization of petroleum feedstocks II: Chemical constitution of feedstock asphaltenes and mesophase development

Semih Eser, Robert G. Jenkins

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

The characterization of the asphaltene fractions of a range of petroleum feedstocks by FT-IR, 1H and 13C NMR spectroscopy indicated distinct differences in the molecular structure of the asphaltenes. Some of these differences could be related to the variations in the size of the principal optical texture of the semi-cokes produced by carbonization. The principal optical texture size was observed to increase steadily with the increasing hydrogen aromaticity of the asphaltenes over the whole range of the feedstocks used. There was no consistent correlation, however, between the carbon aromaticity of the asphaltenes and the optical texture size. The correlation between the hydrogen aromaticity and the principal optical texture size was attributed to structural differences among the asphaltenes that are critically important for the mesophase development.

Original languageEnglish (US)
Pages (from-to)889-897
Number of pages9
JournalCarbon
Volume27
Issue number6
DOIs
StatePublished - 1989

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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