Palladium carbon catalyst regeneration and activation method for removing N-benzyl based on hydrogenation of N-heterocyclic alkane compound

The invention discloses a palladium-carbon catalyst regeneration and activation method for removing N-benzyl based on hydrogenation of an N-heterocyclic alkane compound, which comprises the following steps: removing impurities on the upper surface and in pores of a palladium/carbon catalyst through solvent cleaning, supercritical CO2 extraction, hydrogen peroxide oxidation and other treatments; then, a certain amount of palladium hydroxide is loaded again through methods such as precursor palladium chloride dipping and alkali liquor precipitation, so that the performance of the regenerated and activated palladium/carbon catalyst can basically reach 93% or above of the performance of the original catalyst, efficient recycling of precious metal is guaranteed, and the method has long-term significance for reducing the industrial cost of high-energy material synthesis. 本发明公开了一种基于N杂环烷烃类化合物加氢脱除N-苄基的钯碳催化剂再生活化方法，通过溶剂清洗、超临界CO2萃取、过氧化氢氧化等处理，去除钯/碳催化剂上表面及孔道里的杂质，然后通过前躯体氯化钯浸渍、碱液沉淀等方法重新负载一定量的氢氧化钯，使再生活化后的钯/碳催化剂性能基本能达到原催化剂性能的9