METHOD OF PREPARATION OF HYDROCARBON RAW STOCK FOR BURNING IN BOILERS Russian patent published in 2003 - IPC

FIELD: petrochemical industry. SUBSTANCE: invention relates to production of the boiler fuel for the distant northern regions. Preparation of hydrocarbon raw stock for burning in boilers is exercised by its heating, evaporation of a wide-boiling fraction of the light oil with their consequent condensation and production of the end boiler fuel. The raw stock is heated in the recuperative heat exchangers up to 220-250 C and selection of the wide-boiling fraction is exercised by a single-stage evaporation of the heated raw stock at the inlet into the evaporator of induction heating with consequent gradual evaporation of the light oil as the raw stock moving in the evaporator with rising its temperature up to 300-320 C. It is preferable as far as accumulation of the light oil wide-boiling fraction takes place to make periodically its separation and for the purpose they take the once- run gasoline at the temperature of 130-140 C and in residua they receive good diesel fuel. EFFECT: an intensification of process of hydrocarbon raw stock phase separation with production at one installation of boiler fuel and petroleum light fractions. 2 cl, 1 dwg