July 2007

Bonus Report: Alternative Energy Sources

Improve prediction of cetane index and smoke point

New correlations more accurately estimate properties for conventional and oil sands-derived middle distillates

Yui, S., Syncrude Canada Ltd.

As more Canadian oil sands-based synthetic crude oils (SCOs) are processed, refiners must apply new correlation methods to predict cetane indexes (CIs) and smoke points. Determining cetane numbers (CNs) by knock engines is time-consuming and expensive. A developed set of correlations can accurately estimate CNs and smoke points for bitumen-based middle distillates. New feedstocks. As Canadian oil-sand projects progress, the production of bitumen and bitumen-derived SCOs are forecast to increase from 1.1 million bpd (MMbpd) in 2005 to 3 MMbpd in 2015.1 Middle distillates production from oil sands are also expected to increase. Compared to conventional crude, oil sands-derived SCO contains a

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