METHOD AND FACUILITY FOR THERMAL PROCESSING OF HIHC-ASH AND LOW-CALORIG SOLID FUEL Russian patent published in 2008 - IPC C10B49/22 C10B53/06 C10B57/04 

FIELD: processes.

SUBSTANCE: invention relates to method and facility for thermal processing of high-ash and low-calorie solid fuels and may be used in coal-processing, oil and chemical, shale-processing industries. Solid fuel is supplied to facility and is milled there. After that, fuel is dried and supplied to preliminary preparation chamber for gross raw material to be subjected to pyrolysis. Tar oil or bitumen and black oil fuel in liquid state are supplied to the same chamber through oil waste preparation units. Tar oil, bitumen and black oil fuel are sprayed to the surface of dried milled fuel. Part of high-sulfur wastes are supplied to process boiling bed furnace to neutral or oxidising zone with temperature 600-750°C. Other part of sulfur-free wastes are supplied to restoration zone of boiling bed reactor where pyrolysis takes place at 400-500°C. Generated steam and gas mixture is cleaned and condensed with the production of valuable liquid and gas products. Solid carbonic residue - semi-coke is incinerated in process furnace where solid coolant is produced. Excess of semi-coke are discharged for further use as raw material.

EFFECT: utilisation of liquid hydrocarbon wastes in high-ash low-calorie solid fuel processing in boiling bed with solid coolant and increase of liquid and gas hydrocarbons output.

5 cl, 1 ex, 1 dwg