工业试验证明，拔头油是一种优良的乙烯裂解原料。
Commercial test proves that topped oil is an excellent ethylene pyrolysis feedstock.
结果表明，加氢尾油的馏分不适宜作为裂解原料，可以作为催化裂化的原料。
The results show that fractions of the hydrogenation residue are suitable for catalyzed cracking materials instead of cracking materials.
通过优化裂解原料，调整裂解炉深度，加强分离系统操作监控，实现增产丙烯。
This paper introduced the technology of increasing propylene yield through optimizing cracking material, adjusting depth of cracking furnace, enhancing operation monitoring of separating system.
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