以高芳烃含量的劣质催化裂化柴油为原料进行加氢转化工艺研究，考察体系压力、裂化温度、精制深度以及操作方式对催化柴油加氢转化工艺的影响。结果表明，随体系压力增加轻、重石脑油收率明显增加而转化柴油相应降低；随裂化温度增加汽油馏分明显增加且辛烷值有所提高，柴油馏分十六烷值呈先增加后降低的趋势；当控制精制油氮含量为35 μg/g时，加氢转化工艺得到的产品质量最佳，汽油馏分研究法辛烷值达90以上，为优质的清洁高辛烷值汽油调和组分；从产品质量方面考虑部分循环操作方式最佳，可得到辛烷值超过90的汽油组分与十六烷值在45左右的清洁柴油馏分，加氢转化工艺是劣质催化裂化柴油高附加利用的优质路线。

Hydro-conversion experiments are carried out with high aromatic content inferior FCC diesel as feedstocks,the effects of system pressure,cracking temperature,refining depth and operation mode on the hydro-conversion process are investigated.The results show that as the system pressure increases,the yields of light naphtha and heavy naphtha increase obviously,but that of modified diesel decreases correspondingly;as the cracking temperature increases,the yield of gasoline fraction increases obviously and octane number increases slightly,while cetane number of diesel fraction increases firstly and decreases then;when nitrogen content of refined oil is controlled at 35 μg·g^-1,the quality of product obtained by hydro-conversion process is the best and the octane number of gasoline fraction exceeds 90,which is a high-quality clean high octane number gasoline blending component.Considering the product quality,the partial cycle operation is the best way,which can generate gasoline fraction with an octane number over 90 and clean diesel fraction with a cetane number of about 45.Hydro-conversion process is an excellent route for high value-added utilization of inferior FCC diesel.

李顺新(1978-),男,本科,高级工程师,研究方向为工业催化,lisx.chji@sinopec.com