公开(公告)号：US12129179B2

公开(公告)日：2024-10-29

申请号：US18034382

申请日：2021-11-19

Applicant: ShanghaiTech University

Inventor： Xiaofei Guan ,  Zujian Tang

IPC: B01J23/14 ,  B01J23/04 ,  B01J35/61 ,  C01C1/04

CPC classification number: C01C1/0411 ,  B01J23/04 ,  B01J23/14 ,  B01J35/618 ,  C01C1/0482

Abstract: A method for catalytic synthesis of ammonia under normal pressures, including: performing a reaction of hydrogen and nitrogen to synthesize ammonia under normal pressures by taking a liquid alloy as a catalyst in a reactor, where the reactor contains a molten salt, the density of the molten salt is smaller than that of the liquid alloy, and the molten salt is used for providing a reaction interface and isolating the liquid alloy from being introduced impurities. The first metal reacts with the nitrogen to produce the metal nitride, and the molten salt provides a new reaction interface for the metal nitride to react with the hydrogen to synthesize ammonia, so that ammonia is produced continuously. In addition, the molten salt prevents the liquid alloy from contacting with the oxygen and the water vapor, which prevents the liquid alloy from being oxidized, thus prolonging its service life.