The slurry oil withdrawn from heavy oil catalytic cracking contains catalyst fines which should be separated.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。

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The slurry oil withdrawn from heavy oil catalytic cracking contains catalyst fines which should be separated.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。

youdao