Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1976-03-15
1978-02-28
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 63R, 55 73, 423573R, C02B 118
Patent
active
040766217
ABSTRACT:
Sour water is stripped with air in a tower to remove hydrogen sulfide, and the evolved gas is scrubbed with an aqueous chelated iron solution in an upper portion of the tower to absorb the hydrogen sulfide and oxidize it to sulfur. The treated gas is discharged from the top of the tower. In the lower portion of the tower the chelated iron solution mixes with the sour water and effects removal of residual hydrogen sulfide in solution in the water. The stripping air is introduced into the lower portion of the tower and also functions to reoxidize the chelated iron solution to maintain its activity. The treated water containing chelated iron and sulfur solids is withdrawn from the bottom of the tower and a major portion is preferably recycled and fed to the stripping zone along with the inlet sour water. After separation and recovery of the sulfur solids, if desired, the remainder of the stream is discharged to waste.
REFERENCES:
patent: 1964487 (1934-06-01), Smith
patent: 2897150 (1959-07-01), Bencowitz
patent: 2996449 (1961-08-01), Hodge et al.
patent: 3068065 (1962-12-01), Hartley
patent: 3097925 (1963-07-01), Pitts
patent: 3226320 (1965-12-01), Mewly
patent: 3532595 (1970-10-01), Arnesjo
patent: 3754376 (1973-08-01), Kent
patent: 3761409 (1973-09-01), McCoy et al.
patent: 3767777 (1973-10-01), Frye
patent: 3795486 (1974-03-01), Ekman
patent: 3907526 (1975-09-01), Saleem
patent: 3936281 (1974-03-01), Kurmeier
Air Resources, Inc.
Hart Charles N.
Therkorn Ernest G.
LandOfFree
Chelate oxidation of hydrogen sulfide in sour water does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chelate oxidation of hydrogen sulfide in sour water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chelate oxidation of hydrogen sulfide in sour water will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1674962