Liquid purification or separation – Processes – Chemical treatment
Patent
1980-12-29
1982-09-07
Vertiz, O. R.
Liquid purification or separation
Processes
Chemical treatment
423242, 423512A, C02F 170, C01B 1700
Patent
active
043482899
ABSTRACT:
This specification discloses a method of treating water which contains oxygen dissolved therein to scavenge the oxygen therefrom and reduce the corrosiveness of the water. A sulfur-containing fuel is burned in a flue gas generator to generate a flue gas containing sulfur oxides and the flue gas is scrubbed with an aqueous sodium hydroxide solution to convert the sulfur oxides to a mixture of sodium sulfite and sodium bisulfite, the mixture being referred to generally as sodium sulfites. Ascorbic acid is included in the reaction to prevent the oxidation of the sodium sulfites to sodium sulfates and the sodium sulfites and ascorbic acid are recovered for use as an additive to scavenge oxygen from water. This additive is injected into an oxygen-containing water in an amount sufficient to scavenge the dissolved oxygen from the water. A catalyst may also be added to the water to catalyze the reaction of the sodium sulfites and oxygen.
REFERENCES:
patent: 1271899 (1918-07-01), Howard
patent: 1531993 (1925-03-01), Speller
patent: 2134996 (1939-04-01), Rawling
patent: 2318663 (1943-05-01), Bird et al.
patent: 2825651 (1958-03-01), Looet et al.
patent: 3169068 (1965-02-01), Bloch
patent: 3618667 (1971-03-01), Snavely
patent: 3757488 (1973-09-01), Austin et al.
patent: 3844349 (1974-10-01), Snavely et al.
patent: 3918521 (1975-11-01), Snavely et al.
patent: 4223735 (1980-09-01), Caldwell et al.
Some Corrosion Inhibitor-A Reference List, pp. 195-197, Corrosion, vol. 1, No. 4, 1955.
The Condensed Chemical Dictionary, 8th ed., 1971, p. 81.
Weeter, Permian Basin Technical Symposium, 3-1968.
Caldwell, Jr. Paul L.
Snavely, Jr. Earl S.
AboKhair J. K.
Gilman M. G.
Heller Gregory A.
Huggett C. A.
Mobil Oil Corporation
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