METHOD FOR PRODUCING ELECTRICITY FROM SUB-STANDART (WET) FUEL BIOMASS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC F02C3/28 F23G5/27 C10J3/66 

FIELD: power industry.

SUBSTANCE: method provides, in the first stage, the supply of feedstock - ground fuel biomass of various origins - and its steam-air gasification in a dense bed in a direct-process gasification reactor, werein, during the gasification process, gasifying agents - air and water vapor and/or water - are supplied countercurrent the raw material flow through the lower part of gasification reactor, where accumulation and withdrawal of solid products - gasification wastes is carried out to the active gasification zone by means of, for example, blowing, in ratios with gasified raw material needed for behaviour of oxidation-reduction gasification reactions, and combustible fuel gas, obtained as a result of gasification, is filtered through a bed of feedstock, loaded in gasification reactor, and is withdrawn from the upper part to be used in the second stage, comprising burning the resulting fuel gas with conversion of thermal energy into mechanical energy through a heat engine and into electrical energy through a generator. Wherein, feedstock for the production of electricity is subjected to complete deep drying before the gasification, including convective air-calorifer drying to remove external moisture using the heat of the working medium that has been spent in heat engine by means of its air cooling and, possibly, condensation in the closed circuit of circulation of the working medium, as well as conductive-convective drying by exhaust flue gases to remove residual, including reaction, moisture.

EFFECT: increasing the efficiency of electricity production.

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