The slurry oil withdrawn from heavy oil catalytic cracking contains catalyst fines which should be separated.
重油催化裂化油浆中含有催化剂粉末，需加以分离。
The catalyst of the invention is used for catalytic cracking of heavy oil, the conversion rate is high, the yield of gasoline is high and the coke yield is low.
本发明催化剂用于重油催化裂化，转化率高，汽油产率高，焦炭产率低。
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