FIELD: chemistry.
SUBSTANCE: method of conducting pyrolysis using a bubble fluidised layer boiler involves feeding solid fuel into a pyrolysis apparatus (4) having means (5) of feeding fluidising gas and one or more outlet openings (6) for removing condensed gaseous substances separated from the pyrolysed fuel into a condenser (8) through a line (7). The means (5) of feeding fluidising gas are arranged such that they form crossing streams of fluidising gas towards the direction of feeding the fluidised layer material and fuel. The fluidised layer material is fed from the furnace (1) of the boiler through an adjoining wall into the pyrolysis apparatus (4).
EFFECT: invention improves efficiency and provides longer dwell time of material in pyrolysis conditions.
18 cl, 5 dwg
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