The flow rate of N2 is 60 mL/min, and the flow rate of H2 hydrogen is 40 mL/min. The mixed liquid was pumped into the reaction tube made by 316L stainless steel with a length of 200mm and an inner diameter of 6mm at a flow rate of 0.4ml/min, and the reacted mixed liquid flowed through the gas-liquid separator at a constant flow rate and entered the product collection device for Gas Chromatograph measurement. The reaction product was identified by GC and the yield of the reaction product was determined by GC.