Waste water processing

Details Waste water processing Waste water processing

1974-09-23

1976-06-29

Scovronek, Joseph

Compositions

Gaseous compositions

Carbon-oxide and hydrogen containing

48197R, 48202, C07C 102, C10J 312

Patent

active

039666336

ABSTRACT:
Waste water formed in the gasification of coal and containing ammonia, H.sub.2 S, and phenolic compounds is treated to remove H.sub.2 S and a substantial proportion of its ammonia, while leaving sufficient ammonia in the water to maintain a pH of at least 8 (such as up to about 10.5, preferably about 8.5 to 9), the ammoniacal water is then flashed into a stream of superheated steam being fed to gasification zone. At the high temperatures in the gasification zone the organic impurities are decomposed.

REFERENCES:
patent: 3375175 (1968-03-01), Eddinger et al.
patent: 3505204 (1970-04-01), Hoffman
patent: 3540867 (1970-11-01), Baron et al.
patent: 3725270 (1973-04-01), Tassoney et al.
patent: 3752771 (1973-08-01), Dille et al.
patent: 3759837 (1973-09-01), Dille et al.
patent: 3850839 (1974-11-01), Seglin et al.
R. J. Klett, "Treat Sour Water for Profit," Hydrocarbon Processing, pp. 97-99 (Oct. 1972).

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