Structural characterization of Saudi Arabian heavy crude oil by n.m.r. spectroscopy

  • Misbah U. Hasan*
  • , Mohammad F. Ali
  • , A. Bukhari
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Saudi Arabian heavy crude oil was separated into six fractions, including five distillate fractions (<93, 93-204, 204-260, 260-343 and 343-454 °C) and a >454 °C distillation residue. Each fraction was analysed by 1H and 13C n.m.r. spectroscopy, and combined gained information from these analyses provided reliable average structural parameters. These included estimation of aliphatic and aromatic content, average paraffinic chain length, and estimation of hydrogen, methyl and alkyl bearing aromatic carbons for each of the six fractions. The extent of branching in paraffinic chains and amount of aromatic bridgehead carbons were also calculated.

Original languageEnglish
Pages (from-to)518-523
Number of pages6
JournalFuel
Volume62
Issue number5
DOIs
StatePublished - May 1983

Bibliographical note

Funding Information:
Financial support for this work provided by the Saudi Arabian National Center for Sciencea nd Technology (SANCST) under grant number AR-03-020a nd by the University of Petroleuma nd Minerals,D hahran,S audi Arabia, is gratefullya cknowledgedE. lementala nalyses were performed by the analytical laboratories of ProfessorH . Malissa and G. Reuter,G FR.

Keywords

  • n.m.r.
  • oil
  • structure

ASJC Scopus subject areas

  • General Chemical Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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