纳米自组装大孔催化剂对催化裂化柴油的加氢催化性能  

Preparation of Nano Self-Assembly Macroporous Catalyst and Its Hydrogenation Performance for FCC Diesel Oil

作　　者：李思洋[1] 赵德智[1] 王鼎聪[2] 田野[1] 宋官龙[1] 朱珠[1] 赵春晓[1] 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《石油化工高等学校学报》2014年第1期11-16,共6页Journal of Petrochemical Universities

基　　金：中国石油化工集团公司资助项目(030801)

摘　　要：采用二次纳米自组装方法制备出具有大孔道的催化剂0106、1227，两种纳米自组装催化剂在30～100 nm孔径分布分别占11％、28％。纳米自组装催化剂具有低堆积密度和高金属含量等特点。在10 mL固定床微型反应器中，以镇海炼化的催化裂化柴油为原料，在温度360℃、压力7 M Pa、氢油体积比为600∶1、体积空速为1．5 h-1条件下，考察了两种纳米自组装催化剂的初活性评价，并与现有工业催化剂作对比。结果表明，两种纳米自组装催化剂0106、1227可使催化裂化柴油的含硫质量分数从12400μg/g分别最低降到483、283μg/g ，最高脱硫率分别为96．10％、97．71％；将含氮质量分数从1507μg/g分别最低降到35．7、14．0μg/g ，最高脱氮率分别为97．63％和99.00％；其最高芳烃饱和率分别为67．99％和68．88％；而参比催化剂仅可使催化裂化柴油的含硫质量分数从12400μg/g最低降到537μg/g ，最高脱硫率为94．57％；将含氮质量分数从1507μg/g最低降到64．6μg/g ，最高脱氮率为95．54％；其最高芳烃饱和率为65．65％。Adopting secondary nano self-assembly method to prepare macroporous catalyst（0106 ,1227）with small stacking density and high metal loading ,the distribution of pore volume centralized from 30 nm to 100 nm ,which accounts for 11% , 28% .The first activity of two kinds of nano self-assembly catalyst（0106 ,1227） was investigated with Zhenhai FCC diesel oil as feed at reaction temperatures of 360 ℃ ,reaction pressure of 7 MPa ,hydrogen-oil volume ratio of 600 ,volume space velocity oh 1 .5 h-1 in a fixed bed micro reactor of 10 mL ,and with reference agent as a contrast .The experimental results show that the two kinds of nano self-assembly catalyst （0106 ,1227）has higher activity of hydrodesulfurization ,hydro-denitrificationand aromatics saturation than the reference catalyst .The sulfur mass fraction of FCC diesel oil feedstock could be reduced from 12 400 μg/g to 483 ,283 μg/g which the highest desulfurization rate of 96 .10% and 97.71% ;the nitrogen mass fraction of FCC diesel oil feedstock could be reduced from 1 507 μg/g to 35 .7 ,14 μg/g which the highest denitrification rate of 97.63% and 99.00% ;the highest aromatics saturation rate of 67 .99% and 68 .88% ,while only to 537 ,64 .6 μg/g and 94.57% ,95 .54% , 65.65% over the reference catalyst .

关 键 词：纳米自组装催化剂 加氢脱硫 加氢脱氮 芳烃饱和 催化裂化柴油 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]