Apparatus and process for continuous carbonisation of wood chips or wastes and other charring organic materials

摘要

The invention relates to an apparatus and a method for the production of charcoal from wood chips or other particulate organic waste material. The quality of charcoal produced is suitable for use in applications such as chemical reagents, fuels, and as 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, and a cooling zone having at least one inlet for supplying cooling gas into the reaction bed and an outlet to extract heated gas from the reaction bed.

主权项

1. A process for the autogenous production of charcoal, the process comprising:
adding dry organic material to a first end of a reaction vessel whereby the organic material progresses along a flow path through the reaction vessel and is removed from a discharge port at a second end of the reaction vessel; heating the organic material in a heating zone of the reaction vessel as it progresses through the reaction vessel to a heating reaction zone where the temperature of the organic material has reached a sufficient temperature for exothermic autogenous decomposition of the organic material to occur; allowing the organic material in the reaction zone to undergo autogenous decomposition into charcoal and pyroligneous gases; and cooling the charcoal in a cooling zone of the reaction vessel prior to discharge, wherein pyroligneous gases are removed from a reaction zone outlet in periphery of the reaction vessel such that gases move substantially transversely across the material in the reaction zone towards the reaction zone outlet.