METHOD OF PLASMA THERMAL PROCESSING OF ORGANIC FUEL AND PLANT FOR REALIZATION OF THIS METHOD Russian patent published in 2007 - IPC C10J3/14 C10J3/16 C10J3/18 C10J3/20 

FIELD: technology of complex processing of solid fuel and processing plants.

SUBSTANCE: proposed method includes gasifying of organic fuel simultaneously with high-temperature pyrolysis in the presence of reagent which is injected into reaction zone by means of plasma sources followed by cooling and cleaning of synthesis gas thus obtained from admixtures. Gasifying of initial material is carried out in each gasifier in turn in plasma flow; after completion of oxidizing mode in first gasifier, plasma jet is discontinued and oxidizing mode is conducted in second gasifier; cycles are repeated till height of liquid slag in one of gasifiers is equal to : where Δ is height of liquid slag; G_pl. is consumption of plasma-forming gas, kg/s; ρ_pl is plasma density, kg/m³; ρ_sl. is slag density, kg/m³; d_n is diameter of plasmatron nozzle, m; g is free fall acceleration, m/s²; π=3.14. Then, liquid slag is blown with reducing plasma jet and after draining of metal and slag in one of gasifiers, it is again loaded with initial material and cycle is repeated; water is used as one of plasma-forming components. Plant proposed for realization of this method consists of two units: gasifying unit and energy conversion unit. Gasifying unit consists of twin gasifiers and receiver-cyclone equalizing the pressure of synthesis gas in system and cleaning it preliminarily from dust. Plasmatrons may operate both in oxidizing and reducing modes. Energy conversion unit includes synthesis gas cooling and cleaning system, gas-turbine and steam turbine sets with electrical generator. Emissions into atmosphere are considerably reduced at plasma thermal gasifying of coal as compared with other methods based on coal burning.

EFFECT: enhanced efficiency at maximum extraction of quality finished products.

3 cl, 2 dwg, 1 ex