THERMOCHEMICAL REGENERATION BY MEANS OF FUEL ADDITION Russian patent published in 2019 - IPC C01B3/34 

FIELD: fuel combustion.

SUBSTANCE: invention relates to incineration in furnaces, such as glass-melting furnaces, where material is fed into furnace and heated and / or melted by heat from combustion, which takes place inside furnace. Method includes: (A) combustion of fuel in furnace to produce gaseous combustion products containing oxygen, and (B) alternate (1) (i) passing part of gaseous combustion products from furnace into first chamber, feeding hydrocarbon fuel into first chamber and conducting in first reaction chamber hydrocarbon fuel with oxygen; (ii) passing the gaseous reaction mixture from the first chamber to the cooled first regenerator and through it; (iii) passing at least a portion of the cooled gaseous reaction mixture from the first regenerator and fuel to the heated second regenerator and conducting an endothermic reaction in the second regenerator; (iv) passing synthetic gas formed in second regenerator into furnace and burning synthetic gas by means of one or more streams of oxidant fed into furnace; (2) (i) passing a portion of gaseous combustion products from the furnace to a second chamber, feeding hydrocarbon fuel into the second chamber and conducting hydrocarbon fuel with oxygen in the second reaction chamber; (ii) passing the gaseous reaction mixture from the second chamber to the cooled second regenerator and through it; (iii) passing at least a portion of the cooled gaseous reaction mixture from the second regenerator and fuel to the heated first regenerator and conducting an endothermic reaction in the first regenerator; (iv) passing the synthetic gas formed in the first regenerator into the furnace and burning the synthetic gas with one or more oxidant streams fed into the furnace.

EFFECT: technical result consists in effective heat recovery, as well as in creation and maintenance of reducing medium in both of said regenerators.

14 cl, 3 dwg, 1 tbl, 1 ex