加氢裂化装置喷气燃料芳烃含量调整措施与应用实践

THE MEASURES FOR REGULATING AROMATICS CONTENT OF JET FUEL FROM HYDROCRACKING UNIT AND INDUSTRIAL PRACTICE

中国石油独山子石化公司炼油厂2.0 Mt a加氢裂化装置采用增产喷气燃料兼顾改善尾油质量的加氢裂化技术及配伍精制剂RN-410B、裂化剂RHC-133B,于2019年9月一次开车成功。运行初期,装置所产喷气燃料馏分的烟点达到33.9 mm,芳烃质量分数小于4%,尾油BMCI为5.6,产品质量符合预期。通过调整装置的原料构成、提高滤后混合原料的芳烃含量,以及调整反应工艺条件、优化喷气燃料切割方案,在该装置上成功生产出芳烃质量分数不小于8.0%的各项性质指标合格的军用3号喷气燃料馏分。

The 2.0 Mt a hydrocracking unit in the refinery of Dushanzi Petrochemical Company of PetroChina adopted the hydrocracking technology with the compatible hydrotreating catalyst RN-410B and hydrocracking catalyst RHC-133B to increase the yield of jet fuel and simultaneously improve the quality of tail oil,and achieved a successful running in September 2019.In the initial stage of operation,the smoke point of jet fuel fraction was 33.9 mm and the mass fraction of aromatics was less than 4%,and the tail oil BMCI was 5.6,which could meet the expectation.By adjusting the feedstock compositions of the unit,increasing the aromatics content of the mixed raw material after filtration,adjusting the reaction process conditions and optimizing the jet fuel cutting scheme,a qualified military No.3 jet fuel fraction with aromatics content not less than 8.0%was successfully produced on the unit.