Process for treating ash

Details Process for treating ash Process for treating ash

1995-05-09

1997-09-23

McCarthy, Neil

Liquid purification or separation

Processes

Separating

210769, 431 2, 423 62, C02F 1106, C02F 1112

Patent

active

056700610

ABSTRACT:
Process for the partial oxidation of a hydrocarbon feedstock, comprising the steps of gasification, partial oxidation and removal of the carbon by forming a soot water slurry containing the unburned carbon and ash and filtration of the soot water slurry to form a filtercake of carbon and ash, wherein the filter cake is dried by means of a fluid bed and the dried filtercake is burned at temperatures between 600.degree. C. and 1000.degree. C. Preferably The fluid bed is operated by means of a fluidizing gas at a temperature of at least 150.degree. C. The dried filtercake is burned under circumstances that carbon is left in the resulting ash.

REFERENCES:
patent: 4310422 (1982-01-01), Romey et al.
patent: 4482460 (1984-11-01), Kandler et al.
patent: 4839022 (1989-06-01), Skinner
patent: 5156749 (1992-10-01), Williams
patent: 5462676 (1995-10-01), Pitts
patent: 5466383 (1995-11-01), Lee
Elvers et al., "Ullmann's Encyclopedia Of Industrial Chemistry", 1990, VCH, Germany, pp. 4-20 and 4-21.
Strelzoff, "Partial Oxidation For Syngas And Fuel", Hydrocarbon Processing, vol. 53, No. 12, Dec. 1974, pp. 79-87.

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