method of separating a hydrocarbon phase from a mixture, hydrocarbon separation system, and improved chemical oil recovery process.

摘要

method of separating a hydrocarbon phase from a mixture, hydrocarbon separation system, and improved chemical oil recovery process. Methods and systems of separating a hydrocarbon phase from a mixture comprising a water and hydrocarbon emulsion in the presence of a surfactant, comprising adjusting the salinity of the mixture to release hydrocarbons and water from the emulsion into a hydrocarbon phase and an aqueous phase, are described. containing salt respectively; and separating at least a portion of the hydrocarbon phase from the salt-containing aqueous phase, wherein at least a part of the salt-containing aqueous phase is recovered for later use.