Method and system for de-oiling a feed of oil and water
Assignee1501367 Alberta Ltd.
InventorWade R. Bozak
Life of this patent
Estimating the term…
Abstract
A method and system for de-oiling a feed comprising oil and water. The feed has an input temperature above the boiling point of water and an input pressure sufficient to maintain the water in a liquid state. In at least one embodiment, the method comprises pumping the feed with a motive pump through a phase separator having a restriction to effect a phase separation of oil and water in the feed and produce an agitated mixture, supplying the agitated mixture from the phase separator into a pressure vessel operating at a pressure sufficient to maintain in a liquid state water that is at a temperature above the boiling point of water, removing an oil phase from the pressure vessel, and removing a water phase from the pressure vessel.
Claims17
A system for de-oiling a feed comprising oil and water, the system comprising:
- an input point connected to receive the feed, the feed having an input temperature above the boiling point of water and an input pressure sufficient to maintain the water in a liquid state;
- a motive pump connected to pump the feed from the input point through a phase separator having a restriction and a mixing chamber downstream of the restriction, to mix the feed with a gas in the mixing chamber to effect a phase separation of oil and water in the feed and produce an agitated mixture;
- a pressure vessel connected to receive the agitated mixture through a line connecting the motive pump to the pressure vessel through the phase separator, the pressure vessel having a pressure sufficient to maintain water, which is above the boiling point of water, from the agitated mixture in a liquid state;
- an oil phase outlet connected to the pressure vessel;
- and
- a water phase outlet connected to the pressure vessel.
Dependencies are inferred from the claim text.