Apparatus for producing high surface area active carbon

Details Apparatus for producing high surface area active carbon Apparatus for producing high surface area active carbon

1993-04-29

1995-03-28

Santiago, Amalia L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Pigment or carbon black producer

110246, 422150, 422207, 422168, 422188, 422237, C09C 144

Patent

active

054014727

ABSTRACT:
An apparatus for producing high surface area active carbons in a safe and commercially advantageous manner by the alkali metal hydroxide-based activation method is provided. Using pushers (9a-k), the apparatus circulates containers (C) along a container travel line (8) connecting the elements: material feeding section (1).fwdarw.inlet side gas replacement chamber (2).fwdarw.tunnel kiln (3).fwdarw.cooling zone (4).fwdarw.water injection chamber (5).fwdarw.outlet side gas replacement chamber (6).fwdarw.reaction mixture discharge port (7) to form a closed circuit. During the travel of the containers, a series of steps is performed, namely the steps of charging of the containers with raw materials (carbonaceous material and alkali metal hydroxide-water mixture), dehydration, activation of the carbonaceous material with the alkali metal hydroxide, cooling, water injection and discharge of the reaction mixture. The gas exhaustion system for the tunnel kiln (3) and water injection chamber (5) is provided with a water seal (10).

REFERENCES:
patent: 1528371 (1925-03-01), Gambel
patent: 3835064 (1974-09-01), Shinomiya et al.
patent: 4288408 (1981-09-01), Guth et al.
patent: 5188041 (1993-02-01), Noland et al.

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