TURNDOWN PROCESS FOR A BITUMEN FROTH TREATMENT OPERATION

摘要

A process for operating a bitumen froth treatment operation in turndown mode which includes adding a solvent containing stream to bitumen froth to produce diluted bitumen froth; separating the diluted bitumen froth into a diluted bitumen component and a solvent diluted tailings component; and, in response to a reduction in flow of the bitumen froth, returning a portion of the solvent diluted tailings component into the step of separating as a returned solvent diluted tailings component.