介绍了齐鲁石化公司引进的减压渣油加氢脱硫装置生产及催化裂化装置掺炼其产品蜡油和渣油的情况。
The operation of vacuum residue hydrodesulfurization unit imported by Qilu Petrochemical Company and FCCU which processes the obtained VGO and residue as mixed feedstock was discussed.
通过选择加氢、分离和歧化反应调整乙烯和丙烯产品的结构比例，指出了对部分主要操作参数的控制及要求，并分析了其原因。
Ratio of ethylene to propylene can be regulated through selective hydrogenation, separation and disproportionation. Requirements on some key parameters are pointed out and the reasons are discussed.
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