Gas: heating and illuminating – Processes – Fuel mixtures
Patent
1978-04-28
1979-02-27
Bashore, S. Leon
Gas: heating and illuminating
Processes
Fuel mixtures
48201, 48212, 202158, 203 88, 252373, 261 8, 261 18R, 261118, 261114R, C10J 300, C01B 214
Patent
active
041416961
ABSTRACT:
Dispersions comprising water and particulate solids i.e. carbon and ash are produced in at least one gas cooling or scrubbing zone by quench cooling or scrubbing the raw gas stream from a partial oxidation gas generator with water. The dispersions are resolved by liquid extraction in a decanting zone to produce a water layer containing carbon, dissolved gas, and ash, and also a separate dispersion comprising carbon, extractant, and water. Solids-free water and liquid extractant are then separated from said dispersion in a distillation zone. This water is introduced on to a stripping plate of a flash column along with solids-free recycle condensate from the flash column. The solids-containing water from the decanting zone is flashed below said stripping plate and a portion is converted into steam. The steam passes up through holes or bubble caps in the stripping plate and is dispersed through the water contained on said plate. If desired, a portion of the water obtained from blowing-down a gas cooler may be flashed to steam below the stripping plate. Unvaporized water falls to the bottom of the column. A vertical weir separates the flash column at the bottom into two chambers. Solids settle out of the water in the first chamber and clarified water flows over the weir into the second chamber. Overflow water from the stripping plate is discharged below the water-level in the second chamber by way of a downcomer. Reclaimed water is pumped to said gas cooling and scrubbing zones from the second chamber, and waste water containing solids in the first chamber is discharged from the system.
REFERENCES:
patent: 3434701 (1969-03-01), Bauer
patent: 3980590 (1976-09-01), Marion
Estabrook Lawrence E.
Marion Charles P.
Richter George N.
Bashore S. Leon
Brent Albert
Ries Carl G.
Texaco Inc.
Whaley Thomas H.
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