PROCESS OF USED LUBRICANT OIL RECYCLING

摘要

2099136 9212220 PCTABS00014 A used lubricant oil recycling process is disclosed in which a used lubricating oil is injected to delayed coker drums (16, 17) downstream of the coker furnace (15a) whereby the used oil is thermally cracked into hydrocarbon fuel products which are low in metal contaminants, sulfur and nitrogen. The used lubricant can be preheated in an independent heater (15b) to avoid a quenching effect on the process stream when added in an amount greater than about 3 % by volume based on the entire volume of the feed.