AMMONIA SYNTHESIS METHOD

摘要

The invention provides a process for efficient synthesis of ammonia. The process of the invention for synthesis of ammonia comprises (a) a water-splitting step (101) in which water is decomposed to obtain a first source gas comprising hydrogen and oxygen, (b) a first oxygen removal step (102) in which the oxygen contained in the first source gas is at least partially separated and removed by an oxygen separating membrane or hydrogen separating membrane to obtain a second source gas having a lower oxygen concentration than the first source gas, (c) a second oxygen removal step (103) in which the oxygen in the second source gas is reacted with hydrogen to produce water for removal, or is adsorbed onto an adsorption medium for removal, to obtain a third source gas having a lower oxygen concentration than the second source gas, and (d) an ammonia synthesis step (104) in which the hydrogen in the third source gas is reacted with nitrogen to synthesize ammonia.