现代合成氨能量消耗占合成氨总成本70%,因而开发低温、常压、高活性的新催化体系非常重要。七十年代以来,国内外已开发出 Fe—K/活性炭、Ba—Ru—K/活性炭、Fe—稀土合金、含稀土氧化物的铁催化剂、铁—钴催化剂及 Fe—Mn 催化剂等,使反应压力降低至～80大气压(1atm=1.01325×10~5Pa),反应温度为300—400℃,大大改进了合成氨催化剂的性能。 Modern ammonia energy consumption accounts for 70% of the total cost of ammonia, so it is very important to develop a new catalytic system with low temperature, atmospheric pressure and high activity. Since the seventies, Fe-K / activated carbon, Ba-Ru-K / activated carbon, Fe-rare earth alloy, rare earth oxide-containing iron catalyst, iron-cobalt catalyst and Fe-Mn catalyst have been developed both at home and abroad. The pressure is reduced to ~80 atm (1 atm = 1.01325 × 10 ~ 5 Pa) and the reaction temperature is 300-400 ° C, which greatly improves the performance of the ammonia catalyst.