A continuous flow reactor was used to perform the hydrogenation of the nitrile process (Ou Shi Sheng (Beijing) Technology Co., Ltd). The material was controlled by a plunger pump at a specific flow rate (0-9.99 mL/min) and pumped into a packed bed reactor. The flow rates of H2 and N2 gases were determined by a mass flow controller, with a flow rate of 0-100 sccm and a maximum pressure of 7.0 MPa. The reaction tube in the reactor was made of stainless steel, with a length of 25 cm, an inner diameter of 4.1 mm, and an outer diameter of 6.3 mm. The mixed liquid after the reaction flowed through the gasliquid separator at a constant flow rate. After at least three liquid residence times and the microfilling platform remained stable, samples were collected, the reaction products were identified using a gas chromatograph GC-2014C (Shimadzu, Japan), and the yield of the corresponding target product was calculated. Subsequently, solvent and nitrogen were flushed in to replace the remaining reactants. After the experiment, the system pressure was reduced and the temperature was cooled.