METHOD FOR THERMOCHEMICAL PROCESSING OF BIOMASS TO PRODUCE SYNTHESIS GAS Russian patent published in 2012 - IPC C10B53/02 C10J3/00 

FIELD: power engineering.

SUBSTANCE: method consists in loading of ground raw materials - biomass - to a thermochemical reactor, biomass pyrolysis without air access to temperature of thermal decomposition to produce appropriate products and synthesis gases discharged from a reactor to a circulating flow and to a load. The pyrolysis process in the reactor is carried out with simultaneous introduction of coolant in it based on gaseous products heated to pyrolysis temperature, such as synthesis gases drained from a circulating flow, at the same time coolant used in process of pyrolysis additionally contains water vapours and/or carbonic acid, the latter of which or water is introduced into a flow of gaseous products prior to their heating to pyrolysis temperature. Amount of specified products introduced into a gaseous flow corresponds to (0.2-1.5)G, where G is the amount of loaded biomass into a thermochemical reactor. The process of biomass processing in the reactor is carried out at the pyrolysis temperature of 600°C-1100°C and pressure of gaseous products equal to 0.1-10 MPa. Ground raw materials - biomass - may be wood chips or kindlings with fraction size from 2-15 mm, or wood flour with particle size of not more than 0.15 mm. Carbonic gas and water used in a coolant have ratio of 1:1.

EFFECT: method improvement.

3 cl, 1 dwg