METHOD FOR PRODUCING SYNTHESIS GAS AND SEMI-COKE FROM ORGANIC BIOMASS AND DEVICE FOR CARRYING OUT SAID METHOD

摘要

The invention relates to methods and devices for producing cleaned synthesis pyrogas and semi-coke from organic biomass and can be used in industrial heat power engineering, for producing electric power and for chemical synthesis of organic compounds. The inventive method for producing cleaned synthesis pyrogas and semi-coke from organic biomass, consists in passing the pyrogas through a semi-coke suspension layer, thereby enhancing the biomass decomposition by means of a water-steam conversion reaction. The water-steam conversion reaction is intensified by water steam which is produced by initial raw material drying and is supplied to a screw pyrolyser. The inventive device for producing cleaned synthesis pyrogas from organic biomass comprises a pyrolysis chamber, an input raw material heating chamber, a reaction chamber for receiving gas and carbon, screw conveyors for the input raw material and carbon, fuel screw conveyors for heating the pyrolysis chamber and a spiral conveyor for cleaning the gas and cooling carbon, hoppers for the input raw material and the dried raw material, a steam collector, a pyrogas and air collectors, a thermal expansion absorber for the screw conveyor and a water jacket. Bursting coils arranged in the gas cleaning spiral conveyor convert carbon into a dust cloud, hereby enabling it to efficiently remove impurities from the synthetic gas. Said invention makes it possible to produce a cleaned high-calorific gas from an extended range of solid organic raw materials with low production costs.