Treating foul refinery waste waters with absorber gas

Details Treating foul refinery waste waters with absorber gas Treating foul refinery waste waters with absorber gas

1975-07-30

1976-10-05

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210DIG28, C02B 118

Patent

active

039843165

ABSTRACT:
Refinery waste waters containing dissolved hydrogen sulfide and ammonia are stripped of hydrogen sulfide by a countercurrent stream of refinery absorber gas which removes substantially all of the hydrogen sulfide and none of the ammonia. The dissolved ammonia is subsequently removed by steam stripping, leaving a waste water sufficiently clean to be non-polluting.

REFERENCES:
patent: 3335071 (1967-08-01), Bollen et al.
patent: 3754376 (1973-08-01), Kent
patent: 3777010 (1973-12-01), Nicksic et al.
Klett R. J.; "Treat Sour Water for Profit;" Hydrocarbon Processing; Oct. 1972, pp. 97-99.

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