Cleaning of Oleaginous Water III

摘要

The present invention comprises a process and apparatus for separation of hydrocarbons from hydrocarbon-containing produced water, wherein in stage 1 the hydrocarbon-containing produced water is supplied with a gas-containing component, whereupon a gas- and hydrocarbon-containing produced water mixture is fed to an inlet tube (22, 27) in the center of a tank, whereupon the said mixture is tangentially distributed via at least one nozzle (7) and at least one baffle plate (8.1), whereupon separated hydrocarbons are conveyed to at least one outlet from the tank and cleaned water is conveyed to an outlet (12) from the tank.

主权项

1. A method for separating oil from oil-containing water in a vessel comprising an upper chamber and a lower chamber, the method comprising:
injecting gas into the oil-containing water to generate an oil-containing water and gas mixture; tangentially distributing the oil-containing water and gas mixture into the upper chamber; separating oil and gas from the oil-containing water and gas mixture in the upper chamber to produce a partially-cleaned water to be distributed in the lower chamber; outputting separated oil and gas in the upper chamber through an upper oil outlet; tangentially distributing the partially-cleaned water into the lower chamber; separating oil and gas from the partially-cleaned water in the lower chamber to produce a cleaned water; outputting separated oil and gas in the lower chamber through a lower oil outlet.