Controlling bitumen quality in solvent-assisted bitumen...

Details Controlling bitumen quality in solvent-assisted bitumen... Controlling bitumen quality in solvent-assisted bitumen...

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) B03D 1/02 (2006.01) G01N 33/24 (2006.01) G01N 23/223 (2006.01) G01N 23/225 (2006.01)

Patent

CA 2714842

Described herein is a method of controlling bitumen quality in a process stream within a solvent-assisted bitumen extraction operation, for instance a hydrocarbon stream from a froth separation unit (FSU). Bitumen quality is a measure of the amount of selected contaminants in the process stream. Contaminants may include asphaltenes (comprising metal porphyrins), sulfur, and inorganic solids (comprising inorganic elements, e.g. Si, Al, Ti, Fe, Na, K, Mg, and Ca). First, the amounts of selected contaminants are measured. Next, these measured values are compared to maximum reference values. If one or more of these contaminants is higher than the maximum reference value, at least one variable of the solvent-assisted bitumen extraction is adjusted to improve bitumen quality.

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