催化裂化装置实施RICP组合技术的工业应用

摘要

The RICP technology (Residue Integrated Combination Process) was adopted after revamping of FCC unit of PetroChina Sichuan Petrochemical Co.,Ltd.The vacuum residue mixed with heavy cycle oil from FCC unit was used as hydrotreating feed and then the hydrotreated effluent was processed in FCCU.By this technology,the properties of FCC feed are significantly improved:the carbon residue reduces by 0.47 percentage point,the content of hydrogen increases by 0.3 percentage point,the content of saturated hydrocarbon increases by 4.26 percentage points,and the content of resin and asphaltene significantly declines.The improved properties of the FCC feed increase FCC conversion rate and the total liquid yield by 0.67 percentage point and 1.42 percentage points,respectively.While the coke and slurry yield reduced by 0.63 percentage point and 0.85 percentage point,respectively.The cetane number of diesel fraction also improved.%介绍了渣油加氢催化裂化(RICP)双向组合技术在中国石油四川石化公司催化裂化装置的工业应用情况,探讨了RICP组合技术中催化裂化装置工艺操作调整措施.在RICP组合技术中,将减压渣油与催化裂化重循环油作为渣油加氢原料,经加氢处理后送至催化裂化装置.结果表明:RICP组合技术改善了催化裂化进料性质,催化裂化原料油残炭减小0.47百分点,氢含量增加0.3百分点,饱和烃质量分数增加4.26百分点,胶质和沥青质含量明显减少;改善了催化裂化产品分布和产品性质,催化裂化总转化率提高0.67百分点,总液体收率提高1.42百分点,焦炭产率下降0.63百分点,油浆产率下降0.85百分点,柴油十六烷值有所提高.