硅含量对异构脱蜡工艺加氢补充精制催化剂性能的影响

EFFECT OF SILICON ON PERFORMANCE OF HYDROFINISHING CATALYST IN LUBE ISODEWAXING PROCESS

研究了润滑油基础油补充精制催化剂载体SiO_2含量对催化剂性能的影响。结果表明,当SiO_2质量分数为30%时,催化剂具有较高的比表面积和孔体积,酸性较强,催化剂的芳烃饱和性能最佳。以加氢裂化尾油脱蜡油为原料,采用SA-30催化剂时的最佳反应工艺条件为反应温度230℃、反应压力15 MPa、氢油体积比500、体积空速1.1h^(-1),此条件下加氢产物中芳烃质量分数为0.38%。

The silicon was added in preparation to influence the performance of the hydrofinishing catalyst in lube hydroisomerization process. The results show that when SiO2 content is 30G （SA-30）, the catalyst has a higher surface area and pore volume as well as stronger acid properties, and the best activity for aromatic saturation as well. Using the isodewaxed oil of hydrocracking tail oil as the raw oil and SA-30 as the catalyst, the best operation conditions for aromatic saturation are 230℃, 15 MPa, hydrogen/oil ratio of 500 and LHSV of 1. 1 h-1.