Process and apparatus for continuous production of densified charcoal
AssigneeCommonwealth Scientific and Industrial Research Organisation
InventorAlexandre Vladimirovich Deev
Life of this patent
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Abstract
The invention relates to an apparatus and method for the production of densified charcoal from organic material that can be used for example as chemical reagents, fuels, or absorbents. The reaction vessel defines a flow path extending from the input to the vessel, through to the output from the vessel, in which the thermal decomposition of the organic material progresses as the organic material passes through the reaction vessel. The vessel includes a reaction zone for autogenous reaction of organic material in a reaction bed of the organic material. Pressure can be applied to the bed of organic material to increase the density of the resultant charcoal. Acoustic emitters may also be used to enhance the densification process.
Claims18
An apparatus for the continuous thermal decomposition of organic material comprising:
- a feeder for supplying organic material to a reaction vessel,
- the reaction vessel for supporting a reaction bed of organic material, the reaction vessel defining a flow path along which the organic material undergoes a carbonisation process as it progresses through the reaction vessel, the reaction vessel comprising:
- a pressure applicator to compact the reaction bed,
- a reaction zone for autogenous reaction of organic material in the reaction bed,
- at least one gas outlet from the reaction zone to extract pyoligneous gases directly from the reaction bed,
- a cooling zone to reduce the temperature of the material and to extract heated gas from the reaction bed, and
- at least one discharge port for discharging carbonised organic material from the reaction vessel.
A process for the continuous production of densified charcoal comprising the steps of:
- establishing a reaction bed of organic material undergoing autogenous decomposition in the reaction bed of a reaction zone of a reaction vessel;
- heating dry organic material and loading the organic material into the reaction vessel;
- heating the loaded dry organic material in the reaction vessel to a temperature to soften the organic material;
- applying pressure in the range of greater than zero bar to 10 bar to compress the organic material;
- progressing the compressed organic material into the reaction bed zone of the reaction vessel while raising the temperature of the compressed organic material to a temperature at which autogenous decomposition of the organic material occurs;
- retaining the compressed the organic material in the reaction zone for a period to undergo autogenous decomposition;
- and
- discharging carbonised organic material from the reaction vessel.
A process for the continuous thermal decomposition of organic material in a reaction vessel in which the autogenous decomposition of the organic material has been initiated, the process comprising the steps of:
- heating dry organic material and loading the organic material into the reaction vessel;
- heating the loaded dry organic material to a temperature to soften the organic material;
- applying pressure in the range of greater than zero bar to 10 bar to compress the organic material;
- progressing the compressed organic material into the reaction bed zone of the reaction vessel while raising the temperature of the compressed organic material to a temperature at which autogenous decomposition of the organic material occurs;
- retaining the compressed the organic material in the reaction zone for a period to undergo autogenous decomposition;
- and
- discharging carbonised organic material from the reaction vessel.
Dependencies are inferred from the claim text.