What is Albian Heavy Synthetic crude?

Albian Heavy Synthetic (AHS) is a partially upgraded dilbit produced from the Scotford Upgrader. The Scotford Upgrader is part of the Athabasca Oil Sands Project (AOSP), a joint venture between Shell Canada Energy (operator and 60% owner), Chevron Canada Limited (20%) and Marathon Oil Canada Corporation (20%). AHS is a heavy crude oil, but due to partial upgrading, contains lower sulphur and TAN than unprocessed dilbits and synbits.

Light Ends Summary

Property (vol%)Most Recent Sample6 Month Average1 Year Average5 Year Average
C3- 0.07 0.16 0.16 0.15
Butanes 1.63 1.99 1.93 1.75
Pentanes 2.82 5.94 5.68 6.00
Hexanes 3.74 5.02 4.99 5.46
Heptanes 3.42 3.80 3.85 3.88
Octanes 3.02 3.41 3.47 3.37
Nonanes 2.16 2.19 2.27 2.16
Decanes 0.91 1.02 1.02 0.97

BTEX

Property (vol%)Most Recent Sample6 Month Average1 Year Average5 Year Average
Benzene 0.10 0.11 0.12 0.13
Toluene 0.28 0.31 0.30 0.29
Ethyl Benzene 0.09 0.11 0.10 0.10
Xylenes 0.36 0.39 0.38 0.35

Distillation

TBP ASTM D2892 & D5236
HTSD ASTM D7169

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Most Recent Sample Comments:
AHS-250, Jul 3, 2017

Last 6 Samples

Albian Heavy Synthetic saw slightly increased TAN while pentanes and hexanes were decreased. Typical simulated distillation results are included.

Basic Analysis

PropertyMost Recent Sample6 Month Average1 Year Average5 Year Average
Density (kg/m3) 939.5 936.3 937.7 937.6
Gravity (oAPI) 19.0 19.5 19.3 19.3
Sulphur (wt%) 2.63 2.41 2.44 2.49
MCR (wt%) 13.60 13.87 13.98 13.54
Sediment (ppmw) 553 694 647 646
TAN (mgKOH/g) 0.79 0.63 0.63 0.55
Salt (ptb) 7.2 8.0 8.3 9.4
Nickel (mg/L) 45.1 45.8 47.0 46.2
Vanadium (mg/L) 82.0 82.3 86.9 88.7
Olefins (wt%) - - - ND

*ND indicates a tested value below the instrument threshold.
1 Reference temperatures can be found here

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