FIELD: process engineering.
SUBSTANCE: invention relates to production of charcoal sorbent to be used for production of active coals and carbon sorbents used in agriculture. Carbon-bearing stock (saw dust with initial moisture content of 10-30%) is carbonized at 450-600°C.Carbonised matter is activated by steam-gas mix at 650-800°C and cooled in thin bed to 20-30° at temperature decreased rate of 10°C/min. Obtained charcoal sorbent is subjected to additional activation for air oxygen oxidation.
EFFECT: invention allows production of charcoal sorbent that features iodine absorption capacity of 30-41% that complies with GOST requirements to DAK-grade ground active coal; continuous carbonisation-activation in one apparatus, porous structure of sorbents, required adsorption properties.
2 ex
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