蜡油加氢装置掺炼催化裂化柴油的工业应用

蜡油加氢装置加氢处理催化裂化柴油（催柴）和蜡油的混合原料，在催柴掺炼比27.23%、反应温度363 ℃、反应器入口氢分压9.5 MPa、反应器入口氢油体积比493、主剂体积空速1.35 h-1的工艺条件下，催柴密度从0.983 6 g/cm3降至0.918 5 g/cm3，氢质量分数从8.34%提高到10.92%，氮质量分数从633 μg/g降至67 μg/g，单环芳烃质量分数从15.9%升至51.6%，多环芳烃质量分数从77.4%降至18.7%，催柴性质改善显著。加氢后的催柴与精制蜡油一起进催化裂化装置，加氢催柴在催化裂化装置的转化率达48.15%，汽油产率达40.41%。

PROCESSING MIXED FEED OF WAX OIL WITH FCC LCO IN WAX OIL HYDROTREATING UNIT

The wax oil hydrogenation unit hydrotreated 27.23%(w) catalytic diesel and 82.77%(w) wax oil. Under the operation condition: the reaction temperature was 363 ℃，inlet hydrogen partial pressure was 9.5 MPa, LHSV was 1.35 h-1, inlet ratio of hydrogen-oil was 493, the density of catalytic diesel was decreased from 0.983 6 g/cm3 to 0.918 5 g/cm3, the hydrogen content was increased from 8.34% to 10.92%, the nitrogen content was decreased from 633 μg/g to 67 μg/g, the single aromatic content was increased from 15.9% to 51.6%, the poly-nuclear aromatic content was decreased from 77.4% to 18.9%, the properties of the catalytic diesel had been improved significantly. The hydrotreated catalytic diesel mixed with the hydrotreated wax oil as the feedstock of catalytic cracking, the conversion rate of hydrotreated catalytic diesel was 48.15% and yield of gasoline was 40.41%.