加氢裂化装置掺炼不同二次加工油的研究

对比了中国石化北京燕山分公司2.0 Mt/a加氢裂化装置分别掺炼催化裂化柴油（简称催化柴油）和焦化蜡油对工艺参数、设备、产品以及能耗的影响。结果表明：与掺炼催化柴油相比，装置掺炼焦化蜡油后，加氢精制反应器和加氢裂化反应器的平均温度均有所升高，加氢精制反应器的总温升降低；高压换热器结盐速率加快；相同喷气燃料收率下，总氢耗降低，重石脑油芳烃潜含量降低，喷气燃料、柴油和尾油质量得到改善，综合能耗增加。两种工况下，通过工艺参数的调整，均可得到优质石脑油、喷气燃料、柴油和尾油。

STUDY ON BLENDING CGO AND FCC LCO IN HYDROCRACKER FEED

The effects of blending FCC LCO or CGO in the feed of a 2.0 Mt/a hydrocracking unit on process parameters, equipment conditions, product properties and energy consumptions were studied. The results showed that compared with LCO, when CGO was used as a blending material, the average temperatures of refining reactor and hydrocracking reactor both increased, while the total temperature rise of the refining reactor reduced; the salt deposition rate of high pressure heat exchanger accelerated. At the same jet fuel yield，total hydrogen consumption was reduced，the qualities of jet fuel and diesel and unconverted oil improved, meanwhile the potential aromatic content of heavy naphtha decreased and the total energy consumption increased. Under those two conditions，good quality naphtha，jet fuel，diesel and unconverted oil can obtained by adjusting process parameters.