Characterization of oil sands solids closely associated with Athabasca bitumen

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TypeArticle
Journal titleFuel
Volume67
Issue6
Pages808814; # of pages: 6
Subjecttar sand; bitumen; aromaticity
AbstractBy means of density fractionation, solids associated with bitumen derived from a variety of oil sand grades, were separated into fractions having different humic matter content. Elemental compositions (daf) and calculated densities of the different fractions were similar suggesting a similarity in the nature of the humic matter. Density fractionated solids having a low (< 8 %) and a high (> 87 %) ash content were treated with NaOH for various periods of time to extract the humic acids. For all humic acids analysed the elemental composition and distribution of carbon types in each region of 13C n.m.r. spectra were similar. It has been shown that aromatic carbon was the predominant type of carbon for all samples. On the basis of the aromaticity data, it has been suggested that oil sand humic matter has a significant terrestrial input.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NRC number51988
NPARC number16054704
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Record identifier55759f3f-e75d-4027-958e-20f072939828
Record created2010-09-08
Record modified2016-05-09
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