【摘要】 研究了一系列K、Cu、Co、Pd和Rh改性的Fd/MnO催化剂（Fe／Mn＝1／4）的CO加氢性能以获得更多的C⁼₂～C⁼₄低碳烯烃。在T=543K，压力为1．1MPa和GHSV=215h－1的反应条件下发现，除K－Fe/MnO外，一氧化碳加氢活性在改性催化剂上均有很大提高。其中，在Cu和Co改性的催化剂上C⁼₂～C⁼₄烯烃有所提高。此外，还研究了积碳对催化活性的影响，发现了表面积碳量与催化活性的关系。更多还原

【Abstract】 A series of Fe/MnO catalysts （Fe/Mn=1/4） moditied with K, Cu,Co, Pd and Rh for CO hydrogenation were prepared to obtain a higher selectivity to low molecular weight olefins. The catalytic behavior of these catalysts was studied at temperature of 543 K, under pressure of 1. 1 MPa and with GHSV=215 h-1. It was found that the activity of CO hydrogenation increased over the modified Fe/MnO catalysts except K-Fe/MnO. An increase in tile selectivity to C⁼₂～C⁼₄ was also observed over Cu and Co modified catalysts. Influences of coke formation on the catalytic activities of cayalysts were investigated. A relationship between the activity of CO hydrogenation and coke deposits was suggested.更多还原