Delayed coking method of free-flowing coke manufacturing using additives overbased metal detergent

摘要

Cork of free-flowing, delayed coking process for producing shot coke preferably substantially. Heated to coking temperature in the heating zone, the coker feedstock such as vacuum residue, is fed to the coking zone is followed, in the coking zone to form coke as well as collecting the overhead volatile material. Before fed into the coking zone before or heated in the heating zone a feedstock, or in both, the raw oil, I added the additive of overbased alkaline earth metal detergents. None [Selection Figure]