METHOD OF FABRICATING FUEL BRIQUETTES Russian patent published in 1999 - IPC

FIELD: solid fuel. SUBSTANCE: invention relates to technology of reusing hydrocarbon sludges and wastes and involves impregnation of porous carbon filler at heating and stirring followed by briquetting resulting mix. According to invention, impregnated carbon filler is mixed with lime in amount 1 to 10%, after which fine aluminosilicate is added, for example, clay in the form of powder in amount 5 to 15%. Mix is further stirred, supplemented by 4-15% water, and subjected to briquetting at 30 to 100 C and pressure 1 to 30 MPa. To water, oxidant in amount 0.5 to 1.0 wt % is preliminarily added. EFFECT: avoided necessity in high- pressure briquetting. 2 cl, 1 tbl, 2 ex