Method for recovering hydrocarbon contaminants from wastewater

Details Method for recovering hydrocarbon contaminants from wastewater Method for recovering hydrocarbon contaminants from wastewater

1991-05-13

1992-04-21

Spear, Frank

Liquid purification or separation

Processes

Ion exchange or selective sorption

210805, 210266, 210767, C02F 120

Patent

active

051065070

ABSTRACT:
A method has been discovered for recovering hydrocarbon contaminants from wastewater. The wastewater is contacted countercurrently with stripping gas. The stripping gas is passed over a bed of activated carbon to remove hydrocarbon contaminants. Periodically, the activated carbon bed is regenerated with steam. Steam condensate and hydrocarbon contaminants are passed to a petroleum desalter. Hydrocarbon contaminants are transferred to the petroleum.

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patent: 3888760 (1975-06-01), Ebert
patent: 4054429 (1977-10-01), Ostojic et al.
patent: 4495056 (1985-01-01), Venardos et al.
patent: 4684457 (1987-08-01), McKechnie et al.
patent: 4755499 (1988-07-01), Neal et al.
patent: 4871450 (1989-10-01), Goodrich et al.
patent: 4895641 (1990-01-01), Briceno et al.

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