METHOD OF GASIFYING FUEL BIOMASS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC C10J3/00 C10J3/16 C10J3/20 

FIELD: chemistry.

SUBSTANCE: method involves gasifying fuel biomass in a dense bed moving along the axis of a rotating cylindrical reactor, that includes loading fuel into the reactor, feeding a gasifying agent containing oxygen to the reactor, where the accumulation of solid combustion residues takes place, moving the loaded fuel biomass along the axis reactor, removing solid combustion residues from the reactor, removing the combustible fuel gas from the reactor in such a way that the gasification is carried out by means of a sequential biomass fuel residues in the heating and drying zone 5, the pyrolysis zone 6, the active oxidation/reduction zone 7, and the cooling zone 8, and the gas stream is filtered through the loaded biomass fuel bed countercurrent to its movement. The water supply to the reactor in the active oxidation/reduction zone is carried out in the form of steam, the formation of which takes place in the evaporating cavities 13 directly adjacent to the wall of the reactor working chamber 2, due to the heat flow from the active oxidation/reduction zone, with the injection of superheated steam through the perforated/porous wall of the working chamber distributed along the perimeter and along the length of the active zone. The reactor is equipped with a steam-water curtain belt including an annular reservoir for water 12 and evaporating cavities associated with it, directly adjacent to the perforated or porous wall of the working chamber and forming a cellular structure.

EFFECT: improving the quality of the produced fuel gas, reducing heat losses, increasing the compactness, economy, reliability, and durability of the reactor, simplifying its design.

5 cl, 6 dwg, 1 tbl