Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Patent
1997-09-23
1999-11-02
Bos, Steven
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
502416, B01J 2002
Patent
active
059764848
ABSTRACT:
A method and device is provided which is capable of producing gasified substance and solid-shaped carbonized substances from solid-shaped wastes such as waste tyres by a series of heating, dry distillation and splitting decomposition. After discharging out from the bottom of a splitting decomposition reactor, the solid-shaped carbonized substances are subject to a series of treatments: water washing, magnetic separating, alkaline cleaning and acid pickling (treatment) to separate out iron wire and to remove heavy metal-bearing ash contents. The carbonized substances are next pulverized to the desired particle size so that highly purified carbon black is formed. Subsequently, the carbon black granules are led into an activation furnace and are heated and activated at the atmosphere of steam being passed in to produce powder particulate activated carbon. On the other hand, from the gasified substance produced by-products of the combustible oil and gas are respectively formed. This combustible oil and/or combustible gas can be led into the splitting decomposition reactor and the activation furnace as fuels for heating on the outside of the furnace and where the remaining portion of which may be sold to the outside. The above process of treatments is accomplished at an intermittent and continuous way and recovery rate of the activated carbon is high whereas the treatment time is shortened.
REFERENCES:
patent: 3945810 (1976-03-01), Saito
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patent: 4431567 (1984-02-01), Gestaut et al.
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Teng Chien-Lang
Wang Feng-Sung
Bos Steven
Hendrickson Stuart L.
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