METHOD OF STABILISING A CHEMICALLY ENRICHED CARBONACEOUS MATERIAL

摘要

A method of stabilizing a thermally beneficiated carbonaceous material is disclosed. The method includes the steps of supplying a charge of the carbonaceous material at an elevated temperature to a process vessel to form a packed bed and cooling the carbonaceous material to a target temperature by indirect heat exchange. The method is characterised by supplying an oxygen-containing gas to the packed bed to partially oxidise the carbonaceous material to a required degree to stabilize the carbonaceous material prior to the carbonaceous material reaching the target temperature. The method is also characterised by removing heat from the packed bed that is produced by oxidation of carbonaceous material to control the temperature of the carbonaceous material during oxidation to avoid thermal runaway.