TAILINGS SOLVENT RECOVERY UNIT FEED CONTROL

摘要

Techniques for treating a bitumen froth can include adding a paraffinic solvent to the bitumen froth to provide a diluted bitumen froth; separating the diluted bitumen froth into a diluted bitumen component comprising bitumen and a diluted tailings component; providing the diluted tailings component to a solvent recovery apparatus at a separating step temperature sufficient to avoid pressure moderation of the diluted tailings component and/or adding a dilution stream into the diluted tailings component to produce a tailings solvent recovery feed stream; and then separating feed stream into a recovered solvent component and a solvent recovered tailings component.