上海科技大学知识管理系统

The present invention relates to a method for catalytically synthesizing ammonia at atmospheric pressure. In the present invention, ammonia is synthesized from hydrogen and nitrogen in a reactor at atmospheric pressure with a liquid alloy as a catalyst, wherein a molten salt is used in the reaction, 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 for isolating the liquid alloy to prevent impurities from being introduced into the reaction environment. In the present invention, a first metal reacts with nitrogen to produce a metal nitride, and the molten salt can provide a new reaction interface for the reaction of the metal nitride and hydrogen to synthesize ammonia, so that the metal nitride continuously generates ammonia, and the reaction rate and the synthesized ammonia amount are effectively catalyzed; in addition, the molten salt can prevent the liquid alloy from coming into contact with oxygen and water vapor in the outside atmosphere, thereby preventing the liquid alloy from being oxidized, and thus prolonging the service life of the liquid alloy.

本发明涉及一种常压催化合成氨的方法。 在本发明中， 在大气压下，以液态合金为催化剂，由氢气和氮气在反应器中合成氨， 其中在反应中使用熔融盐， 熔盐的密度小于液态合金的密度，熔盐用于提供反应界面和隔离液态合金以防止杂质引入反应环境中。 在本发明中， 第一金属与氮反应生成金属氮化物， 熔盐可以为金属氮化物与氢气反应合成氨提供新的反应界面，使金属氮化物连续生成氨，有效催化反应速率和合成氨量； 另外，熔盐可以防止液态合金与外界大气中的氧气和水蒸气接触，从而防止液态合金氧化，延长液态合金的使用寿命。