PROCESS AND SYSTEM FOR PROCESSING A PRODUCED STREAM FROM A SOLVENT HYDROCARBON RECOVERY OPERATION

A system and process for recovering hydrocarbons from a reservoir formation is disclosed and involves injecting a vaporized solvent stream into the reservoir formation, the solvent reducing a viscosity of the hydrocarbons to facilitate recovery in a produced stream including hydrocarbons, solvent, and water. The process involves separating water from the produced stream to generate a dewatered stream which is heated prior to recovering gaseous solvent to generate a hydrocarbon product stream. A portion of the heating is provided by extracting heat from the gaseous solvent recovered from the dewatered stream. The process involves treating the gaseous solvent to generate a liquefied solvent stream and to separate residual water and reservoir gas and generating thermal energy through combustion of a fuel gas for vaporizing the liquefied solvent stream for re-injecting into the reservoir formation as the vaporized solvent stream, the combustion of fuel gas resulting in discharge of a hot exhaust stream. The process involves directing the exhaust stream through a heat exchanger causing a vaporized water portion of the exhaust stream to condense to a liquid releasing latent energy, which is transferred to a heated thermal fluid for the heating of the dewatered stream.