焦化汽油加氢精制催化剂的级配及其评价  

Gradation and test of hydrofining catalysts for coking gasoline

作　　者：张孔远[1] 刘爱华[2] 燕京[2] 吕才山[2] 

机构地区：[1]中国石油大学(华东)化学化工学院国家重油加工重点实验室,山东青岛266555 [2]中国石化齐鲁分公司研究院,山东淄博255400

出　　处：《石化技术与应用》2008年第4期297-300,共4页Petrochemical Technology & Application

摘　　要：中国石化齐鲁分公司胜利炼油厂将80万t/a柴油加氢精制装置改造为50万t/a焦化汽油加氢装置,为使其反应器温度均匀分布及装置长周期稳定运行,在实验室模拟进行了焦化汽油加氢精制催化剂级配方案的确定及评价。结果表明,此加氢精制装置的适宜工艺条件为:反应器的第一床层装填LH-04保护剂、HPS-02脱硅保护剂和LH-01 G催化剂,第二床层装填LH-03催化剂,且V(LH-04保护剂)/V(HPS-02脱硅保护剂)/V(LH-01 G催化剂)/V(LH-03催化剂)为6.5∶14.6∶66.4∶181.2;装置压力为3.8 MPa,总循环氢量为38 000 m3/h,第一、二床层的反应温度分别为270,330℃,氢油体积比分别为350,420,反应体积空速分别为6.55,2.40 h-1。在上述条件下的加氢生成油均可以满足溴价[m(B r2)/m(油品试样)]小于0.06,硫质量分数小于800×10-6的乙烯裂解原料指标要求。In order to ensure the uniform distribution of reaction temperature and the long period stable running for a coking gasoline hydrofining unit of 500 kt/a revamped from a diesel oil hydrotreating unit of 800 kt/a in Shengli Refinery of Qilu Branch Co. , SINOPEC, the hydrofining catalysts were combined and evaluated with simulation method in the laboratory. The results showed that the appropriate process conditions for this hydrofining unit were：the first bed of the reactor shoutd be filled with protective catalyst LH- 04, desilicon protective catalyst HPS- 02 and catalyst LH- 01G, the second bed should be filled with catalyst LH -03, and the volume ratio of LH- 04, HPS- 02, LH- 01G and LH-03 should be 6.5： 14.6： 66.4： 181.2;the pressure of the reactor should be 3.8 MPa,the total circulation of hydrogen 38 000 m^3/h, the temperature 270,330℃,the ratio of hydrogen to oil 350 and 420, and the reaction volume space velocity 6.55, 2.4 h^-1 for the first and second bed respectively. Under the above conditions,the hydrofined oil could meet the requirements of the ethylene cracking feedstock of the bromine value less than 0.06 and the mass fraction of sulfur less than 800 ×10^ -6 .

关 键 词：焦化汽油 加氢精制 催化剂 级配 乙烯裂解原料 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]