我们对工业上使用过的轻油制氢催化剂进行了研究。分别将不同床层高度的催化剂进行了活性、物相、Ni晶粒大小、比表面、孔结构和表面状态的研究。得到了催化剂结构及其性能沿催化剂床层的某些变化规律。发现离床层入口三米处是催化剂结构变化的转折点,同时发现该处催化剂的失活原因是碳的沉积。在9—10米处催化剂中的镍在表面上有明显迁移聚集形成不连续薄片的现象,这是该处催化剂失活的主要原因。 We have studied the industrial use of light oil hydrogen catalyst. The activity, phase, Ni grain size, specific surface area, pore structure and surface state of different bed height catalysts were studied respectively. Some changes of the catalyst structure and its properties along the catalyst bed were obtained. Found three meters away from the entrance of the bed is a turning point in the catalyst structure change, at the same time found that the catalyst deactivation reason is carbon deposition. Nickel in the catalyst at 9-10 meters showed obvious migration and aggregation on the surface to form a discontinuous flake, which was the main reason for catalyst deactivation there.