The coking situation of slurry oil system in FCC unit,the phenomenon of filter blockage at the inlet of slurry oil pump and its treatment measures were introduced.Combined with the influencing factors of slurry oil system in the production process,the causes of coking in slurry oil system were compared and analyzed.It was proposed that measures such as lowering the bottom temperature,shortening the residence time of slurry oil and increasing the amount of slurry oil thrown out should be taken to reduce coking and ensure the long-term operation of FCC unit.
关键词
催化裂化/油浆/结焦/塔底温度
Key words
Catalytic cracking/Oil slurry/Coking/Tower bottom temperature