用ESCA ,XRD ,SEM及TPR等手段表征了不同条件下再生的工业失活加氢裂化催化剂 .结果表明 ,Mo Ni/USY Al2 O3 失活催化剂在实验室装置中快速再生优于慢速再生 ;再生温度对催化剂的结构与性能有影响 .480℃再生能将失活催化剂中绝大部分的碳和氮烧掉 ,且比表面积恢复率最高 ;6 0 0℃再生时 ,催化剂的毛细孔口明显减少 ,且产生少量聚结态 β NiMoO4 晶相 The industrial deactivated hydrocracking catalysts regenerated under different conditions were characterized by means of ESCA, XRD, SEM and TPR.The results showed that the rapid regeneration of Mo Ni / USY Al 2 O 3 deactivated catalyst was superior to the slow regeneration in laboratory equipment. The regeneration temperature has an influence on the structure and properties of the catalyst. The regeneration at 480 ℃ can burn most of the carbon and nitrogen in the deactivated catalyst, and the recovery rate of specific surface area is the highest. At 600 ℃, the capillary port of the catalyst is obvious Decrease, and produce a small amount of coherent β NiMoO4 crystal phase