The comparison of bitumens from oil sands with different recovery profiles

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DOIResolve DOI: http://doi.org/10.1080/10916466.2010.495960
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TypeArticle
Journal titlePetroleum Science and Technology
ISSN1091-6466
Volume30
Issue22
Pages22852293; # of pages: 9
SubjectAnalytical techniques; Athabasca oil sands; Bitumen recovery; Individual components; Mineral matters; Recovery profiles; Resin content; SARA; Asphaltenes; Centrifugation; Nuclear magnetic resonance spectroscopy; Oil sands; Resins; Sulfur; Viscosity; Bituminous materials
AbstractIt has been proposed that, regardless of origin, the recovery of bitumen from oil sands is related to its viscosity. Asphaltene and resin contents are known to affect the viscosity of bitumen. In this article we compare the composition of solvent-extracted bitumens from several Athabasca oil sands with very different recovery profiles. After careful removal of any associated mineral matter by ultra-centrifugation, each bitumen sample was separated into saturate, aromatic, resin, and asphaltene (SARA) fractions by an enhanced SARA technique. The individual components were then characterized by several complementary analytical techniques, including carbon, nitrogen, nitrogen, sulfur, size exclusion chromatography molecular weight (MW n) plus proton and 13C nuclear magnetic resonance spectroscopy. Based on this comparison, we see no correlation between the recovery of bitumen and its composition. © Crown Copyright.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology (ICPET-ITPCE)
Peer reviewedYes
NPARC number21269266
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Record identifierb3df75fa-523b-41e8-9591-7eb7c8e4df1b
Record created2013-12-12
Record modified2016-05-09
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