METHOD FOR GASIFICATION, COMBUSTION AND DRY DISTILLATION OF COAL LIQUEFACTION RESIDUE AND OIL-CONTAINING SLUDGE

摘要

PURPOSE:To carry out gasification, combustion and dry distillation by operating safely a fluidized furnace which is easy to handle, by depositing a coal liquefaction residue contg. solids or oil-contg. sludge on porous particles and treating the particles in a fluidized furnace. CONSTITUTION:A median type coal liquefaction residue contg. solids or oil- contg. sludge is deposited on porous particles. The resulting particles are burnt and subjected to a treatment selected from among the following treatments (a) to (c) in a fluidized furnace; (a) a treatment wherein fluidized gasification is carried out by using oxygen and steam to obtain gas, (b) a treatment wherein the particles are burnt in a fluidized bed by using oxygen or air to obtain heat, and (c) a treatment wherein dry distillation is carried out in a fluidized bed by using air or air and steam to obtain a distillate. The residue and the particle can be used in a weight ratio of 1 of the particle to 3 of the residue or sludge. A mixing ratio of 1:1 is preferred from the viewpoints of easiness of mixing and handling of particle.