TECHNOLOGY AND DEVICE FOR OBTAINING SYNTHESIS GAS FROM BIOMASS BY PYROLYSIS Russian patent published in 2014 - IPC C10J3/66 C10B53/02 C10B57/10 C10B49/22 C01B3/36 

FIELD: chemistry.

SUBSTANCE: to obtain synthesis-gas from biomass performed is preliminary processing of biomass, including biomass crushing until particles with size 1-6 mm are obtained and drying raw material to moisture 10-20 wt %. After that, pyrolysis of biomass is carried out by means of fast pyrolysis technology, with temperature of pyrolysis layer being 400-600°C, and time of location of gaseous phase on pyrolysis layer being 0.5-5 s. Product of pyrolysis layer is pyrolysis gas and coal powder. Pyrolysis gas is separated from coal powder and solid heat carrier by means of cyclone separator. After that, coal powder and solid heat carrier are separated in separator to separate solid phases, coal powder is charged into coal powder bin for accumulation, solid heat carrier is heated in chamber of boiling layer heating and solid heat carrier is supplied to pyrolysis layer for re-use. After that, pyrolysis gas is supplied to condensate accumulator to condense aerosol and condensation of condensable part of pyrolysis gas is carried out to form bio-oil, after that formed bio-oil is pumped by high pressure oil pump and supplied to gasification furnace for gasification. One part of non-condensed pyrolysis gas is supplied on combustion layer for combustion with air, and the other part of non-condensed pyrolysis gas is supplied on pyrolysis layer as fluidising medium.

EFFECT: invention makes it possible to increase gasification effectiveness, stability and reliability of installation for obtaining synthesis gas from biomass.

9 cl, 1 dwg, 1 tbl, 6 ex