Patent ID: 7648615

Claim:
In a method of disposing of material using a dry distillation vessel having surrounding walls forming a chamber, including: introducing air including negative ions into the chamber of the vessel, the dry distillation vessel containing, from a bottom, a ceramic layer and a disposed layer, while retaining a soaking region between the ceramic layer and a carbonizing layer of the disposed layer, and the soaking region advances to the top of the disposed layer; and dry distilling the disposed layer, and discharging resultant dry distillation gas outside the vessel, while producing ash in the soaking region that is converted to powder ceramic and provides a part of the ceramic layer, and while the disposed layer gradually sinks by its own weight so as to reduce the volume thereof; the improvement comprising placing a tinder material over the ceramic layer which includes a provisional soaking region at the bottom surface thereof, while feeding negative ion air, from air feed holes in the surrounding walls of the vessel, and then depositing disposed material on the tinder material.