Separating carbon from ash

Details Separating carbon from ash Separating carbon from ash

1998-05-04

1999-11-02

Chiesa, Richard L.

Gas separation: processes

Deflecting

And filtering

95270, 55319, 55331, 55408, 55DIG30, 2091391, 209141, 209714, 110165A, 110216, B01D 5000, B07B 400

Patent

active

059762241

ABSTRACT:
A method of separating unburned Carbon, as particulate matter, from the flyash produced as a result of the combustion process occurring in a pulverized-coal fired steam generating power plant is disclosed. More particularly the invention separates the flyash into a coarse product group and a fine product group by utilizing the differences in specific gravity between the Carbon particles and remaining flyash as well as utilization of the dynamic classification characteristics of a rotary classifier to effect the separation whereby at least one of the two product groups comprises a relatively low weight percentage of unburned Carbon while yet comprising a relatively high percentage of the total mass of product recovered after separation.

REFERENCES:
patent: 459570 (1891-09-01), Beynon
patent: 688810 (1901-12-01), Raymond
patent: 3770124 (1973-11-01), Frangquist
patent: 4511462 (1985-04-01), Folsberg
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patent: 4684069 (1987-08-01), Hashimoto et al.
patent: 5024169 (1991-06-01), Borowy
patent: 5622321 (1997-04-01), Brundick et al.
patent: 5624039 (1997-04-01), Folsberg
patent: 5887724 (1999-03-01), Weyand et al.
patent: 5887725 (1999-03-01), Tominaga et al.

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