Patent ID: 11939233
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 8:
9. An oil-water separation system comprising:
a vessel configurated to receive an oil-water mixture and to pass a treated water, wherein the treated water comprises a lower concentration of oil than the oil- water mixture;
an oil collector upstream of a first overflow baffle configured to skim and recover a portion of the oil upstream of the first overflow baffle;
a first overflow baffle configured to direct the oil-water mixture fluid flow over the first overflow baffle;
a first underflow baffle positioned downstream of the first overflow baffle in the direction of fluid flow configured to direct the oil-water mixture fluid flow under the first underflow baffle;
a second overflow baffle coated in a copper-based hydrophobic material positioned downstream along the fluid flow pathway of the first underflow baffle wherein oil agglomerates upwards, configured to direct fluid flow over the second overflow baffle, the second overflow baffle comprising:
a first portion being attached to the first overflow baffle at a level above a bottom of the vessel and below a bottom end of the first underflow baffle, the first portion traversing under the first underflow baffle and being substantially perpendicular to the first overflow baffle; and
a second portion being attached to the first portion and being positioned downstream of the first underflow baffle in the direction of fluid flow and including a second overflow baffle section disposed at an acute angle of less than 90 degrees from horizontal; and
a water exit port located below the first portion of the second overflow baffle.