摘要
Activated carbon-supported Ru-based catalyst and A301 iron catalyst were prepared,and the influences of reaction temperature,space velocity,pressure,and H2/N2 ratio on performance of iron catalyst coupled with Ru catalyst in series for ammonia synthesis were investigated.The activity tests were also performed on the single Ru and Fe catalysts as comparison.Results showed that the activity of the Ru catalyst for ammonia synthesis was higher than that of the iron catalyst by 33.5%-37.6% under the reaction conditions：375-400 °C,10 MPa,10000 h-1,H2︰N2 3,and the Ru catalyst also had better thermal stability when treated at 475 °C for 20 h.The outlet ammonia concentration using Fe-Ru catalyst was increased by 45.6%-63.5% than that of the single-iron catalyst at low tem-perature （375-400 °C）,and the outlet ammonia concentration increased with increasing Ru catalyst loading.
激活的支持碳的基于 Ru 的催化剂和 A301 铁催化剂被准备，并且铁催化剂的性能上的反应温度，空间速度，压力，和 H2/N2 比率的影响在系列结合了 Ru 催化剂因为氨合成被调查。活动测试也作为比较在单个 Ru 和 Fe 催化剂上被执行。结果证明为氨合成的 Ru 催化剂的活动比由在反应条件下面的 33.5%37.6%
基金
Supported by the National Natural Science Foundation of China（20803064）
the Natural Science Foundation of Zhejiang Province（Y409034）
