METHOD OF PREPARING FUEL COMPOSITION Russian patent published in 1999 - IPC

FIELD: chemical industry, more particularly fuel compositions based on heavy petroleum fractions. SUBSTANCE: method comprises separating mechanical impurities and excess water from petroleum slurry and subsequently mixing it with heavy petroleum fraction. Prior to separation of mechanical impurities and water, petroleum slime is subjected to gas-vapor activation. Gas-vapor mixture is added at mixture to petroleum slurry weight ratio of 1:5-50. It is preferable to separate mechanical impurities and water from petroleum slurry by centrifugal force. EFFECT: improved quality of the fuel composition. 3 cl, 3 ex, 1 tbl