Method and apparatus for regenerating used activated carbon

Details Method and apparatus for regenerating used activated carbon Method and apparatus for regenerating used activated carbon

1978-05-19

1980-03-11

Envall, Jr., Roy N.

13 23, F27B 108, E27D 1104

Patent

active

041929624

ABSTRACT:
In a vertical electric furnace having vertically spaced annular electrodes for regenerating used activated carbon by passing electric current therethrough, the inner cross-sectional area of the furnace is gradually decreased and then gradually increased between the electrodes thus forming a throat. With this construction, layers of the used activated carbon in which the resistance value varies with the temperature gradient are formed.

REFERENCES:
patent: 1071442 (1913-08-01), Lee
patent: 2270245 (1942-01-01), Barker

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