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Nitrogen functionality distributions in asphaltenes isolated from several oils from different source rock types

Lookup NU author(s): Professor Stephen Larter

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Abstract

Seven asphaltenes isolated from oils from different source rock types have been examined by X-ray photoelectron spectroscopy (XPS) to determine their gross nitrogen speciation. Five-membered ring pyrrolic nitrogen and six-membered ring pyridinic nitrogen species are the main types present, with pyrrolic nitrogen dominating in all samples. Pyrrolic nitrogen:pyridinic nitrogen ratios were in the range of 1.44-4.26.

Publication metadata

Author(s): Wilhelms A, Patience RL, Larter SR, Jorgensen S

Publication type: Article

Publication status: Published

Journal: Geochimica et Cosmochimica Acta

Year: 1992

Volume: 56

Issue: 10

Pages: 3745-3750

Print publication date: 01/10/1992

ISSN (print): 0016-7037

ISSN (electronic):

Publisher: Pergamon

URL: http://dx.doi.org/10.1016/0016-7037(92)90167-H

DOI: 10.1016/0016-7037(92)90167-H

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