Elsevier

Fuel

Volume 60, Issue 5, May 1981, Pages 397-400
Fuel

Identification of nitrogen functional groups in Athabasca bitumen

https://doi.org/10.1016/0016-2361(81)90276-3Get rights and content

Abstract

Reactions of resins, asphaltenes and model nitrogen compounds with acetic anhydride and with trifluoroacetic anhydride yield compounds which provide indications that the predominant nitrogen functional groups in resins and asphaltenes (from Athabasca bitumen) exist as imino groups of the carbazole-type. Evidence for this was obtained from infrared and F19 nuclear magnetic resonance studies.

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    Published in part as ‘An investigation of nitrogen types in Athabasca bitumen’, S. E. Moschopedis and J. G. Speight Preprints, Am. Chem. Soc. Div. Petrol. Chem. 1979, 24(4), 1007. Contribution No. 1060 from the Alberta Research Council.

    Present address: Exxon Research and Engineering Company Corporate Research-Science laboratories, P.O. Box 45, Linden, NJ 07036, USA.

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