| abstract |
The present invention relates to a kind of caprolactam refining spent hydroprocessing catalysts and preparation method thereof.The hydrogenation catalyst includes active component and carrier.Wherein, the carrier is the active carbon handled through nitrogenous compound and the nitrogenous compound is the combination selected from one or more of urea, Guanidine Sulfamate 99, ammonia, amino acid.The acidproof alkali ability of caprolactam refining spent hydroprocessing catalyst according to the present invention is strong, and selectivity with higher and conversion ratio are low in cost, and suitable for fixed bed hydrogenation device.In addition, the preparation method preparation method of hydrogenation catalyst according to the present invention is simple, it is easy to industrialize, catalyst is easy to operate in use, and highly-safe, production consumption is low, saves device and space occupied. |