METHOD FOR PRODUCING CHARCOAL, HEAT POWER AND FUEL GAS AND APPARATUS FOR PERFORMING THE SAME Russian patent published in 2004 - IPC

FIELD: production of charcoal, including active charcoal, possibly heat power and fuel gas. SUBSTANCE: method comprises steps of charging wood material into retort; heating it until achieving stable process of pyrolysis; supplying pyrolysis gases into expansion chamber; feeding part of fuel gases necessary for sustaining predetermined mode to fire box space of furnace chamber; taking off remaining gas for further using it according to needs different from charcoal production; guiding charcoal to cavity for collecting ready product; in order to produce active charcoal, feeding into retort predetermined quantity of direct steam; placing between retort and expansion chamber vertical duct; filling said duct with technological coal; feeding pyrolysis gases into expansion chamber through layer of charcoal; guiding gases from furnace chamber into afterburning chamber and additionally supplying air to said chamber. EFFECT: production of charcoal, active charcoal, heat power and purified fuel gas practically without harmful outbursts to atmosphere. 5 cl, 1 dwg