NOVELTY - Carbonaceous feedstock (1) is dried and pyrolyzed. Bio oil is separated from pyrolysis gas and vapor, gas and vapor mixture (23) of volatile combustion products (18) is removed, resin-free gas and vapor are combusted, and pyrolyzed materials (pyrocarbon) (24) are unloaded. Moisture (12) is removed from the material and sucked into the receiver-condensate collector (11). Pyrocarbon is fed to activation chamber and synthesis gas is generated. The solid residue is unloaded and separated, and powdered biomass fuel is obtained.    USE - Production of biomass fuel from carbonaceous feedstock.    ADVANTAGE - The method can be used carbonaceous feedstock processing, including production and consumption, mainly wood, vegetation, agricultural and other residuals containing organic compounds. The feedstock drying rate is increased by moisture extraction in the form of finest drops (mist) by impulse-vacuum action which reduces power consumption for usually used thermal vapor formation on the feedstock surface. The rate and stability of pyrolysis is increased by continuous crushing of pyrolysis crust in rotating pyrolysis chamber using grinding balls which besides act as heat-transfer agent. The pyrolysis rate is increased by thermal catalytic processing of catalytic powder in the form of pellets in rotating drum with perforated ends between which crushed pyrolysis crust powder flows through.    DETAILED DESCRIPTION - Carbonaceous feedstock is dried in a drying chamber (8) and pyrolyzed in a pyrolysis chamber (15). Bio oil is separated from the pyrolysis gas and vapor, gas and vapor mixture of volatile combustion products is removed, resin-free gas and vapor are combusted in a combustion chamber (19) with air supply, and pyrolyzed materials (pyrocarbon) are unloaded. Pyrolysis is carried out in pyrolysis chamber which rotates horizontally around its longitudinal axis partially filled up by grinding balls-heat-transfer agent (16). Material drying is carried out by heating in a drying chamber (mainly by furnace gas) up to 50-95 degrees C. The chamber cavity is sealed and connected by a quick-response pneumatic valve (9) with the receiver-condensate-collector cavity in vacuum. Moisture is removed from the material in the drying chamber cavity (mainly in the form of drops and mist (10)) and moisture is sucked into the receiver-condensate collector, where it is condensed and fed through a steam generator to gas and vapor activation chamber. The pyrolyzed hot materials (pyrocarbon) are fed simultaneously to gas and vapor activation chamber, and synthesis gas (carbon monoxide and hydrogen mixture) is generated. The solid residue of pyrocarbon and mineral concretion is unloaded and separated, and finely dispersed pyrocarbon (powdered biomass fuel) is obtained.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the biomass fuel production method.    Carbonaceous feedstock (1)    Drying chamber (8)    Quick-response pneumatic valve (9)    Mist (10)    Receiver-condensate collector (11)    Moisture (12)    Pyrolysis chamber (15)    Heat-transfer agent (16)    Combustion product (18)    Combustion chamber (19)    Gas-vapor mixture (23)    Pyrocarbon (24)    Condensate (27)    Activation (51)    Suspension biomass fuel (52)