深度催化裂解石脑油加氢工艺技术的工业应用

介绍了加氢精制和芳烃抽提的组合工艺在陕西延长石油(集团)有限责任公司榆林炼油厂200 kt/a深度催化裂解(DCC)装置的工业应用情况。该工艺可脱除DCC裂解石脑油中的硫和烯烃,降低苯含量,经加氢处理后的脱戊烷油硫和氮的质量分数均小于0.5μg/g,完全满足苯抽提进料性质要求,辛烷值RON在100以上。经苯抽提抽苯后,RON仍在98以上,可用于生产高辛烷值国Ⅴ车用汽油调合组分。该工艺不仅大幅提高了DCC裂解石脑油的经济价值,生产可替代甲基叔丁基醚的汽油调合组分,实现了资源优化配置,为DCC裂解石脑油拓展了产品去向,并大大促进DCC工艺的推广应用。

Commercial application of hydrogenation process for deep catalytic cracking naphtha

The commercial application of integrated process of hydrotreating and aromatic extraction in a 200,000 TPY deep catalytic cracking (DCC) unit in Yulin Refinery of Yanchang Oil Group is introduced.This process can remove sulfur and olefins in DCC naphtha and reduce benzene.The sulfur and nitrogen in depentanized naphtha is lower than 0.5 ppm,which can meet the feedstock requirement of benzene extraction unit.The octane number is over 98 and the naphtha is a good blending component for high-octane Guo Ⅴ standard gasoline production.This process can not only improve the economic value of DCC naphtha,produce good gasoline blending component which can replace MTBE,realize optimized utilization of resources and DCC cracked naphtha but also greatly promote the commercial application of DCC process.