INTEGRATED PROCESSES FOR RECOVERY OF HYDROCARBON FROM OIL SANDS

摘要

Processes are described for extracting hydrocarbon from a mineable deposit. One such process for extracting bitumen from oil sands into a bitumen-rich stream comprises: (a) separating bitumen from oil sands by addition of water to form a bitumen- enhanced stream and a bitumen-lean stream; (b) mixing the bitumen-lean stream with additional oil sands to form a mixed stream; (c) adding solvent to the mixed stream to extract bitumen from the mixed stream into the solvent, thereby forming a bitumen-depleted stream and an extracted bitumen stream; and (d) mixing the extracted bitumen stream with the bitumen- enhanced stream to form a bitumen-rich stream.