Comparison of bitumens from oil sands with different recovery profiles

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TypeArticle
Journal titlePetroleum Science and Technology
Pages# of pages: 8
Subjectoil sands; bitumen composition; asphaltene; resin; SARA; bitumen recovery
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. Here we compare the composition of solvent extracted bitumens from several Athabasca oil sands having 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 fractions by an enhanced SARA technique. The individual components were then characterized by several complementary analytical techniques, including CHNS, size exclusion chromatography molecular weight (MWn) plus proton and ¹³C nuclear magnetic resonance spectroscopy. Based on this comparison, we see no correlation between the recovery of bitumen and its composition.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NRC number52085
NPARC number18335864
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Record identifier76cd3ea3-637c-4453-bb6f-5b48fecc80d3
Record created2011-08-09
Record modified2016-05-09
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