ACTIVATION REGENERATION FURNACE FOR ACTIVE CHARCOAL, AND METHOD AND APPARATUS FOR GAS PURIFICATION UTILIZING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a compact activation regeneration furnace for active charcoal and an activation regeneration method which facilitate incorporation into a gas purification apparatus and a method and an apparatus for gas purification which utilize the activation regeneration furnace for active charcoal and keeps the removal rate for chemical substances in exhaust gas at a high level for a long period.SOLUTION: An activation regeneration furnace for active charcoal includes an active charcoal supply part 21 for supplying active charcoal K deteriorated in adsorption capacity, an active charcoal regeneration part 22 which forms a mobile layer allowing the supplied active charcoal to flow down by gravity, brings the active charcoal K into contact with water vapor V in a counterflow manner under heating conditions in the mobile layer to cause an aqueous gasification reaction so as to regenerate the active charcoal K, a cooling part 26 for cooling the regenerated active charcoal and an active charcoal discharge part 27 for discharging the cooled activate charcoal. In the mobile layer, there is provided a heating part 25 for forming such a temperature gradient of a maximum temperature difference of 200°C or greater that the temperature rises in the gravity direction within the temperature range of 600-900°C.