Abstract: The removal of solid catalyst powder from FCC slurry is a common technical challenge in the deep processing of FCC slurry. To realize deep purification for slurry and to improve the comprehensive utilization value of the slurry, the JR-SA06 efficient slurry deash agent was first applied in 2.3 Mt/a FCC unit of a company. The application results demonstrated that adding 500 μg/g deash agent based on the FCC slurry and settling at 90-95 ℃ for 72 hours, the ash content in the slurry decreased from 0.28% to 0.019%, removal rate of ash reached 93.16%, which is superior to the common deash agents and creates good conditions for the subsequent processing and utilization of slurry.

Key words: catalytic cracking, slurry, deash agent, ash, removal rate