加氢裂化装置加工渣油加氢柴油的工业试验

INDUSTRIAL PRACTICE OF HYDROCRACKING UNIT TO PROCESSDIESEL FRACTION FROM RESIDUAL HYDROTREATER

为实现渣油加氢柴油的高附加值利用,发挥加氢裂化装置在压减柴油产量方面的作用,开展了加氢裂化装置加工渣油加氢柴油的工业试验。加氢裂化装置负荷率为56%,掺炼21.4%的渣油加氢柴油后,部分渣油加氢柴油可以转化为非柴油组分,表观转化率为48.34%;加氢裂化柴油产品的硫、氮质量分数未受明显的影响,分别为1.3μg/g和低于0.3μg/g,相对于柴油加氢改质装置的柴油产品性质略有改善;加氢裂化柴油产品十六烷值为62.7,提高了17左右;柴油总产量降低14.09 t/h。采用加氢裂化装置加工渣油加氢柴油,优化了渣油加氢柴油加工路线,有效压减柴油组分,提高了柴油产品质量,为渣油加氢柴油的高附加值利用提供工业案例。

In order to realize the high value-added utilization of the diesel fraction from residue hydrotreating(RHT)unit and give full play to the role of hydrocracking units in reducing diesel fuel,a commercial test of RHT diesel fraction was carried out in a hydrocracking unit.The load rate of hydrocracking unit was 56%,and after blending 21.4%RHT diesel fraction,most of the RHT diesel fraction could be converted into non diesel components,with an apparent conversion rate of 48.34%.The mass fraction of sulfur and nitrogen in hydrocracking diesel products was 1.3μg/g and less than 0.3μg/g,respectively.Compared to that of the diesel hydroupgrading unit,the properties of diesel product were slightly improved,with the cetane number of 62.7,which increased by about 17,and the total output of diesel product decreased by 14.09 t/ h.The hydrocracking unit was used to process RHT diesel fraction,the process route was optimized,the component of diesel fuel was effectively reduced,and the quality of diesel fuel was improved.It can provide an industrial case for the high value-added utilization of RHT diesel fraction.